CLASS 95, GAS SEPARATION: PROCESSES |
1 | WITH CONTROL RESPONSIVE TO SENSED CONDITION: |
This subclass is indented under the class definition. Process in which the separation is regulated by detecting
a characteristic or a change in a characteristic of the process
and by implementing an action in the process based upon the detected
characteristic or change therein.
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2 | . Electric or electrostatic field (e.g., electrostatic precipitation, etc.): |
This subclass is indented under subclass 1. Process in which there is a step including discharge of
an electric current into the fluid mixture or electrifying a fluid
or solid that contacts the fluid mixture.
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3 | .. Concentration sensed: |
This subclass is indented under subclass 2. Process in which concentration of a constituent present in the process or a change therein (e.g., dust, humidity, etc.) is detected and is used to control some aspect of the process. | |
4 | .. Temperature sensed: |
This subclass is indented under subclass 2. Process in which temperature or a change therein is detected and is used to control some aspect of the process. | |
5 | .. Sparking sensed: |
This subclass is indented under subclass 2. Process in which the presence or frequency of sparking in the gas phase, often accompanied by short bursts of increasing current flow or decreasing electrode voltage, is detected and is used to control some aspect of the process. | |
6 | .. Current sensed: |
This subclass is indented under subclass 2. Process in which current flowing between discharge and collector electrodes or a change therein is detected and is used to control some aspect of the process. | |
7 | .. Voltage sensed: |
This subclass is indented under subclass 2. Process in which voltage applied, either directly to an electrode or indirectly to the fluid mixture, or a change therein is detected and is used to control some aspect of the process. | |
8 | . Concentration sensed: |
This subclass is indented under subclass 1. Process in which concentration of a constituent present in the process or a change therein (e.g., pH, humidity, dust content, etc.) is detected and is used to control some aspect of the process. | |
9 | .. pH sensed: |
This subclass is indented under subclass 8. Process in which pH or a change therein is detected and is used to control some aspect of the process. | |
10 | .. Humidity sensed: |
This subclass is indented under subclass 8. Process in which humidity or a change therein is detected and is used to control some aspect of the process. | |
11 | .. Flow of fluid mixture to sorber stopped or diverted to other equipment, or sorbent regenerated: |
This subclass is indented under subclass 8. Process in which the flow of the fluid mixture to a sorber is stopped or the flow of the fluid mixture is switched to another sorber based upon the detected concentration or change therein; or process in which a sorbent is regenerated based upon the detected concentration or change therein. | |
12 | .. Gas flow rate modified: |
This subclass is indented under subclass 8. Process in which flow rate of a gas is changed based upon the detected concentration or change therein. | |
13 | .. Sorbent flow rate modified: |
This subclass is indented under subclass 8. Process in which flow rate of a sorbent is changed based upon the detected concentration or change therein. | |
14 | . Temperature sensed: |
This subclass is indented under subclass 1. Process in which temperature or a change therein is detected and is used to control some aspect of the process. | |
15 | .. And pressure sensed: |
This subclass is indented under subclass 14. Process in which pressure or a change therein is also detected and is used to control some aspect of the process. | |
16 | .. Modification of flow rate of liquid which is added to gas: |
This subclass is indented under subclass 14. Process in which flow rate of liquid which is added to a gas is modified based upon the detected temperature or change therein. | |
17 | .. Cooling: |
This subclass is indented under subclass 14. Process in which the fluid mixture, a separated constituent, or an apparatus involved in the process is cooled based upon the detected temperature or change therein. | |
18 | .. Heating: |
This subclass is indented under subclass 14. Process in which the fluid mixture, a separated constituent, or an apparatus involved in the process is heated based upon the detected temperature or change therein. | |
19 | . Pressure sensed: |
This subclass is indented under subclass 1. Process in which pressure or a change therein is detected and is used to control some aspect of the process. | |
20 | .. Apparatus cleaned: |
This subclass is indented under subclass 19. Process in which apparatus is cleaned based upon the detected pressure or change therein. | |
21 | .. Sorbent regenerated: |
This subclass is indented under subclass 19. Process in which a sorbent is regenerated based upon the detected pressure or change therein. | |
22 | .. Gas flow rate modified: |
This subclass is indented under subclass 19. Process in which flow rate of a gas is changed based upon the detected pressure or change therein. | |
23 | . Gas flow rate sensed: |
This subclass is indented under subclass 1. Process in which gas flow rate or a change therein is detected and is used to control some aspect of the process. | |
24 | . Liquid level sensed: |
This subclass is indented under subclass 1. Process in which liquid level or a change therein is detected and is used to control some aspect of the process. | |
25 | WITH RECORDING OR SIGNALING CONDITION: |
This subclass is indented under the class definition. Process in which a characteristic or a change in a characteristic
of the fluid mixture, of a separated constituent, or
of apparatus used in the process is set down for preservation in permanent
form or is indicated by means giving information of an audible or
a visual nature (e.g., alarm, etc.).
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26 | WITH TIMING OF OPERATION: |
This subclass is indented under the class definition. Process in which the time at which an operation occurs is controlled or the length of time in which an operation is performed is controlled. | |
27 | MAGNETIZED PARTICLE BED: |
This subclass is indented under the class definition. Process in which magnetic lines of force are applied to
a bed of loose particles that contain a magnetizable component.
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28 | MAGNETIC SEPARATION: |
This subclass is indented under the class definition. Process in which the separation is caused or aided by magnetic
lines of force.
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29 | SOUND WAVES USED: |
This subclass is indented under the class definition. Process in which the separation is effected or enhanced
by the energy of compressional vibratory waves in a fluid medium, the waves
being below, within, or above the audible spectrum.
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30 | . Degasification of liquid: |
This subclass is indented under subclass 29. Process in which the wave energy is used to separate gas
from a liquid.
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31 | DIFFERENCE IN MOLECULAR VELOCITY, DENSITY, OR MOMENTUM OF GASES USED: |
This subclass is indented under the class definition. Process in which the plurality of gases is separated into
constituent gaseous parts by making use of physical differences
in molecular speed, weight, or inertia of the
constituent gaseous parts.
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32 | . Passing gases through nozzle: |
This subclass is indented under subclass 31. Process in which gaseous constituents having different molecular weights or different gas kinetic cross sections are separated, with the plurality of gases flowing out of a short tube, usually tapering, that forms the vent of a hose or pipe in order to effect the separation. | |
33 | .. Directing gas streams toward one another: |
This subclass is indented under subclass 32. Process in which gas streams or jets are directed toward one another and are deflected. | |
34 | . Centrifugal force: |
This subclass is indented under subclass 31. Process in which the plurality of gases is separated by
the effect of centrifugal action which causes the gases to assume
a rapid arcuate or circular movement, with this movement
causing the constituents of the mixture to separate into more or
less distinct layers, depending upon the density of the
constituents.
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35 | .. Created by rotating equipment: |
This subclass is indented under subclass 34. Process in which the centrifugal force is caused by a rotating
element moving around an axis.
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36 | LIQUID-SOLID SLURRY USED: |
This subclass is indented under the class definition. Process in which the separation is accomplished by contacting
the fluid mixture with a pumpable mixture of a solid and a liquid.
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37 | . Organic compound removed from gas |
This subclass is indented under subclass 36. Process in which an organic compound is removed from gas by contact with a liquid-solid slurry. | |
38 | . Halogen containing compound removed from gas: |
This subclass is indented under subclass 36. Process in which a halogen (i.e., fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At)) containing compound is removed from gas by contact with a liquid-solid slurry. | |
39 | COMPRESSING AND INDIRECT COOLING OF GASEOUS FLUID MIXTURE TO SEPARATE: |
This subclass is indented under the class definition. Process in which the separation of a constituent from a
gaseous fluid mixture is accomplished by extracting heat in an indirect
heat exchanger before, after, or while increasing
the pressure on the gaseous fluid mixture.
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40 | . And use of heat absorbing agent: |
This subclass is indented under subclass 39. Process in which a substance is added to the gaseous fluid mixture to prevent a material rise in temperature of the gaseous fluid mixture by absorbing the heat of compression. | |
41 | . And solid sorption: |
This subclass is indented under subclass 39. Process in which a solid sorbent is used to remove a constituent
from the gaseous fluid mixture.
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42 | . And liquid contact (e.g., scrubbing, sorption, etc.): |
This subclass is indented under subclass 39. Process in which a liquid is used to remove a constituent
from the gaseous fluid mixture (e.g., scrubbing, sorption, etc.).
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43 | SELECTIVE DIFFUSION OF GASES: |
This subclass is indented under the class definition. Process in which a fluid mixture containing a gas to be
separated contacts a solid, liquid, or gaseous
barrier, with the gas separating because of the differential
permeability of the barrier with respect to the gas.
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44 | . Selective diffusion of gases through immobilized liquid: |
This subclass is indented under subclass 43. Process in which a plurality of gases containing a gas to
be separated contacts a liquid barrier that is supported or immobilized
in or on a porous medium, with the plurality of gases being
separated because of the differential permeability of the liquid
with respect to the gases.
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45 | . Selective diffusion of gases through substantially solid barrier (e.g., semipermeable membrane, etc.): |
This subclass is indented under subclass 43. Process in which a plurality of gases or a mixture of gas
entrained in a liquid contacts a substantially solid surface (e.g., semipermeable membrane, etc.) and
a gas is separated from another gas or a gas is separated from the
liquid because of the differential permeability of the surface of
the solid with respect to the gases.
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46 | .. Degasification of liquid: |
This subclass is indented under subclass 45. Process in which gas is separated from a liquid by selective
diffusion of the gas through a substantially solid barrier.
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47 | .. Nitrogen or nitrogen containing compound permeates barrier: |
This subclass is indented under subclass 45. Process in which nitrogen (N2) or a nitrogen containing compound selectively diffuses through a substantially solid barrier. | |
48 | .. Halogen containing compound permeates barrier: |
This subclass is indented under subclass 45. Process in which a halogen (i.e., fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At)) containing compound selectively diffuses through a substantially solid barrier. | |
49 | .. Sulfur containing compound permeates barrier: |
This subclass is indented under subclass 45. Process in which a sulfur (S) containing compound selectively diffuses through a substantially solid barrier. | |
50 | .. Organic compound permeates barrier: |
This subclass is indented under subclass 45. Process in which an organic compound selectively diffuses through a substantially solid barrier. | |
51 | .. Carbon dioxide or carbon monoxide permeates barrier: |
This subclass is indented under subclass 45. Process in which carbon dioxide (CO2) or carbon monoxide (CO) selectively diffuses through a substantially solid barrier. | |
52 | .. Water vapor permeates barrier: |
This subclass is indented under subclass 45. Process in which water (H2O) vapor selectively diffuses through a substantially solid barrier. | |
53 | .. Helium permeates barrier: |
This subclass is indented under subclass 45. Process in which helium (He) selectively diffuses through a substantially solid barrier. | |
54 | .. Oxygen permeates barrier: |
This subclass is indented under subclass 45. Process in which oxygen (O2) selectively diffuses through a substantially solid barrier. | |
55 | .. Hydrogen permeates barrier: |
This subclass is indented under subclass 45. Process in which hydrogen (H2) selectively diffuses through a substantially solid barrier. | |
56 | ... Elemental metal or alloy barrier: |
This subclass is indented under subclass 55. Process in which hydrogen (H2) selectively diffuses
through a substantially solid barrier that is made of elemental
metal or alloy or contains a layer of elemental metal or alloy.
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57 | ELECTRIC OR ELECTROSTATIC FIELD (E.G., ELECTROSTATIC PRECIPITATION, ETC.): |
This subclass is indented under the class definition. Process in which an electric current is discharged into
the fluid mixture or the fluid mixture is contacted with a fluid
or solid which has been electrified.
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58 | . With addition of solid, gas, or vapor: |
This subclass is indented under subclass 57. Process which includes adding a solid, gas, or vapor
to the fluid mixture undergoing treatment or separation.
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59 | .. Electrode treating (e.g., coating, cleaning, etc.): |
This subclass is indented under subclass 58. Process which includes the physical treatment of an electrode (e.g., by
addition of a protective or reactive layer to the electrode or the
removal of collected material from the electrode, etc.).
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60 | .. Heating or cooling: |
This subclass is indented under subclass 58. Process in which the fluid mixture to be separated is heated or cooled either by or along with the addition of solid, gas, or vapor. | |
61 | .. Solid is electrically conducting: |
This subclass is indented under subclass 58. Process in which a solid of low electrical resistance is
added to the fluid mixture.
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62 | .. Agglomerating gas-borne particles: |
This subclass is indented under subclass 58. Process in which solid or liquid particles to be separated
from a gas are agglomerated into larger conglomerates either in
the gas phase or on a collecting surface, with the agglomeration being
facilitated by addition of a solid, gas, or vapor
to the incoming fluid mixture.
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63 | . And nonelectrical separation of fluid mixture: |
This subclass is indented under subclass 57. Process which includes methods of separation of the fluid
mixture other than those explicitly connected with an electrical
separation technique.
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64 | .. Liquid addition to gaseous fluid mixture: |
This subclass is indented under subclass 63. Process in which a liquid is added to a gaseous fluid mixture
before, during, or after electrical treatment
either (a) to cause separation or (b) to condition
the gaseous fluid mixture in any way.
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65 | ... Liquid addition precedes electrical precipitation: |
This subclass is indented under subclass 64. Process in which liquid addition is made before the gaseous fluid mixture is subjected to electrical separation. | |
66 | .... With heating or cooling: |
This subclass is indented under subclass 65. Process including heating or cooling either as a result of the liquid addition or as a separate, additional gas treatment. | |
67 | .. By heating or cooling: |
This subclass is indented under subclass 63. Process in which nonelectrical gas separation is caused by heating or cooling a gaseous fluid mixture. | |
68 | .. Including cleaning or regeneration of separating means (e.g., particulate bed filter, deflector, etc.): |
This subclass is indented under subclass 63. Process which includes removal of collected material from
or regeneration of a nonelectrical gas separating means, such
as a particulate bed filter or deflector.
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69 | .. Distinct separation step precedes electric or electrostatic treatment: |
This subclass is indented under subclass 63. Process in which at least one nonelectrical separating step
is performed on the fluid mixture before electric or electrostatic
treatment.
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70 | .. Distinct separation step follows electric or electrostatic treatment: |
This subclass is indented under subclass 63. Process in which at least one nonelectrical separating step
is performed on the fluid mixture after electric or electrostatic
treatment.
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71 | . With addition of liquid to gaseous fluid mixture: |
This subclass is indented under subclass 57. Process in which a liquid is added to a gaseous fluid mixture
undergoing treatment, but does not directly result in the
separation of gas constituents.
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72 | .. Vaporization of liquid: |
This subclass is indented under subclass 71. Process in which the added liquid is vaporized to join the gas phase. | |
73 | . With heating or cooling: |
This subclass is indented under subclass 57. Process which includes heating or cooling of the fluid mixture
being treated.
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74 | . With cleaning of collector electrode: |
This subclass is indented under subclass 57. Process which includes cleaning or removing of a deposited
constituent from an electrical element provided to attract and retain
the constituent.
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75 | .. By liquid flushing: |
This subclass is indented under subclass 74. Process in which the cleaning of the element is performed
by the application of a liquid stream.
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76 | .. By scraping or vibrating: |
This subclass is indented under subclass 74. Process in which the cleaning of the element is performed
by the application of mechanical contacting or jarring means to
remove retained material.
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77 | . Continuously moving electrode: |
This subclass is indented under subclass 57. Process in which an element discharging electricity into
the fluid mixture or collecting deposits therefrom continually moves
during operation.
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78 | . Including baffling, deflection, or restriction of gas flow: |
This subclass is indented under subclass 57. Process in which a restriction or redirection of gas flow
is caused by inclusion of a baffle, deflector, or
specially shaped electrode for the purpose of such restriction.
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79 | . Plural separate stages or zones (e.g., separate ionization and collection regions, etc.): |
This subclass is indented under subclass 57. Process in which a gaseous fluid mixture passes through
two or more distinct regions or units, such regions providing
either multiple identical gas treatments or plural diverse treatments
for removal of entrained particles.
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80 | .. Pulsing or time-varying electric field (e.g., AC, pulsed DC, etc.): |
This subclass is indented under subclass 79. Process involving the application of a voltage which fluctuates
with time during treatment of the gaseous fluid mixture.
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81 | . Pulsing or time-varying electric field (e.g., AC, pulsed DC, etc.): |
This subclass is indented under subclass 57. Process involving the application of a voltage which fluctuates
with time during treatment of the gaseous fluid mixture.
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82 | CHROMATOGRAPHY: |
This subclass is indented under the class definition. Process in which (a) the plurality of
gases to be separated enters a column to contact a liquid, known
as the "stationary liquid phase," supported
by a base of solid material to successively sorb therein the different
gases of the mixture or (b) the plurality of gases
to be separated enters a column to contact a solid sorbent to successively
sorb thereon the different gases of the mixture with or without
subsequently successively eluting or displacing the sorbed gases
in (a) or (b) with a gas which
is inert with respect to the sorbed gases and sorbent; and subcombinations
of the processes in (a) and (b) that
do not result in separation when the subcombinations are not provided
for elsewhere.
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83 | . Liquid supported on surface of capillary column: |
This subclass is indented under subclass 82. Process in which the base of solid material supporting the stationary liquid phase as a thin film is the inner surface of a capillary tube or column. | |
84 | . Liquid supported on particulate packing: |
This subclass is indented under subclass 82. Process in which the base of solid material supporting the stationary liquid phase is a granular solid. | |
85 | . Including use of gas flow distributor in column: |
This subclass is indented under subclass 82. Process in which gas is directed or channelled by use of
a deflector inside the column.
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86 | . Plural separate columns: |
This subclass is indented under subclass 82. Process in which the plurality of gases passes through two
or more parallel or serial columns.
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87 | . With heating or cooling: |
This subclass is indented under subclass 82. Process in which the plurality of gases, a liquid, a separated constituent, or an apparatus involved in the process is heated or cooled (e.g., the column may be heated in order to degas the solid sorbent or a gas may be heated or cooled, etc.). | |
88 | . Specific column packing or sorbent material (e.g., particle size, composition, etc.): |
This subclass is indented under subclass 82. Process in which a specified packing or sorbent material (e.g., sorbent compositions, particle size, etc.) is used. | |
89 | . Injection, per se, without separation: |
This subclass is indented under subclass 82. Process in which a method of injecting the plurality of
gases or a liquid into the chromatography column is claimed, per
se, without gas separation.
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90 | SOLID SORPTION: |
This subclass is indented under the class definition. Process in which a solid sorbent is used to retain on its
internal or external surfaces a constituent of the fluid mixture
passing in contact therewith.
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91 | . Soluble or deliquescent material used: |
This subclass is indented under subclass 90. Process in which the solid sorbent dissolves in the constituent
retained or sorbed therein or thereon.
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92 | . And liquid contact (e.g., scrubbing, sorption, etc.): |
This subclass is indented under subclass 90. Process in which a gaseous fluid mixture is contacted by
a liquid in addition to a solid sorbent in order to remove a gas, solid, or
liquid therefrom.
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93 | .. Sweep gas used on solid sorbent: |
This subclass is indented under subclass 92. Process in which a gas is used to purge the constituent
separated from the solid sorbent or a gas is used to regenerate
the solid sorbent.
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94 | .. And recycle or reuse of contact liquid for further contact: |
This subclass is indented under subclass 92. Process in which (a) the contact liquid is recirculated for further contact with the fluid mixture or a portion thereof or (b) the contact liquid is used in another step of the process for further contact with the fluid mixture or a portion thereof. | |
95 | . Including reduction of pressure: |
This subclass is indented under subclass 90. Process in which pressure over a mass of solid sorbent is decreased in order to separate from the solid sorbent the constituent sorbed in the gas separation process. | |
96 | .. Plural pressure varying steps (e.g., pressure swing adsorption, etc.): |
This subclass is indented under subclass 95. Process in which there is more than one step of increasing or decreasing the pressure on the solid sorbent. | |
97 | ... Sweep gas used: |
This subclass is indented under subclass 96. Process in which a gas is used to purge the constituent
separated from the solid sorbent or a gas is used to regenerate
the solid sorbent.
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98 | .... Feed gas or constituent thereof is sweep gas: |
This subclass is indented under subclass 97. Process in which the sweep gas is the gaseous fluid mixture or a portion thereof, before or after being treated or separated. | |
99 | ..... With heating or cooling: |
This subclass is indented under subclass 98. Process in which the solid sorbent or a gas is heated or cooled. | |
100 | ..... Stepped pressure reduction: |
This subclass is indented under subclass 98. Process in which the pressure over the solid sorbent is
decreased in more than one step.
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101 | ...... Vacuum applied: |
This subclass is indented under subclass 100. Process in which a step of pressure reduction is accomplished by using a pressure below that of the atmosphere. | |
102 | ..... Vacuum applied: |
This subclass is indented under subclass 98. Process in which a step of pressure reduction is accomplished by using a pressure below that of the atmosphere. | |
103 | ... Stepped pressure reduction: |
This subclass is indented under subclass 96. Process in which the pressure over the solid sorbent is
decreased in more than one step.
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104 | .. Sweep gas used: |
This subclass is indented under subclass 95. Process in which a gas is used to purge the constituent
separated from the sorbent or a gas is used to regenerate the solid
sorbent.
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105 | ... Feed gas or constituent thereof is sweep gas: |
This subclass is indented under subclass 104. Process in which the sweep gas is the gaseous fluid mixture or a portion thereof, before or after being treated or separated. | |
106 | .. With heating or cooling: |
This subclass is indented under subclass 95. Process in which the solid sorbent or a gas is heated or cooled. | |
107 | . Moving sorbent: |
This subclass is indented under subclass 90. Process in which the solid sorbent is moved from one zone
to another by moving a housing, is moved from one zone
to another in a stationary housing, or is blown about or
fluidized by a gas in a housing.
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108 | .. Fluidized bed: |
This subclass is indented under subclass 107. Process in which the solid sorbent is blown about or fluidized by a gas in a housing. | |
109 | ... Having gravity flow of sorbent from zone to zone: |
This subclass is indented under subclass 108. Process in which the solid sorbent is moved from one zone to another in a stationary housing by the forces of gravity. | |
110 | .. Gravity flow of sorbent from zone to zone: |
This subclass is indented under subclass 107. Process in which the solid sorbent is moved from one zone to another in a stationary housing by the forces of gravity. | |
111 | ... Sweep gas used: |
This subclass is indented under subclass 110. Process in which a gas is used to purge a constituent separated from the solid sorbent or a gas is used to regenerate the solid sorbent. | |
112 | .... Steam is sweep gas: |
This subclass is indented under subclass 111. Process in which the sweep gas is steam. | |
113 | .. Rotating housing containing fixed sorbent or rotating plurality of housings: |
This subclass is indented under subclass 107. Process in which the housing containing a fixed solid sorbent turns on its axis in order to move the solid sorbent from one treatment zone to another or a plurality of housings is turned about a central axis to the housings to place a housing in a position of use or nonuse or regeneration. | |
114 | . With plural indirect heat transfer steps on solid sorbent or gaseous fluid mixture or constituent thereof: |
This subclass is indented under subclass 90. Process in which there is more than one step of heating
or cooling the solid sorbent or the gaseous fluid mixture or constituent
thereof through a wall before or after separation.
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115 | .. Heating and cooling: |
This subclass is indented under subclass 114. Process in which there is heating and cooling of the solid
sorbent or of a gas.
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116 | . Inorganic gas or liquid particle sorbed (e.g., vapor, mist, etc.): |
This subclass is indented under subclass 90. Process in which an inorganic gas or liquid particle (e.g., vapor, mist, etc.) is
sorbed from the plurality of gases or the gas with entrained liquid
particles.
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117 | .. Water sorbed: |
This subclass is indented under subclass 116. Process in which water is sorbed from the plurality of gases
or the gas with entrained liquid particles.
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118 | ... Plural separating treatments of gas by solid sorbent to remove water: |
This subclass is indented under subclass 117. Process in which the gas is passed through a plurality of discrete or diverse separating stages or steps, with the solid sorbent being the same or a different solid sorbent in each step of the process. | |
119 | .... And regeneration of any solid sorbent: |
This subclass is indented under subclass 118. Process in which at least one of the solid sorbents is revivified or regenerated. | |
120 | ..... Heating or cooling: |
This subclass is indented under subclass 119. Process in which the solid sorbent or a gas is heated or cooled. | |
121 | ... And regeneration of solid sorbent: |
This subclass is indented under subclass 117. Process in which the solid sorbent is revivified or regenerated. | |
122 | .... Sweep gas used: |
This subclass is indented under subclass 121. Process in which a gas is used to purge the water separated from the solid sorbent or a gas is used to regenerate the solid sorbent. | |
123 | ..... Hot sweep gas: |
This subclass is indented under subclass 122. Process in which there is a positive step of raising the temperature of the sweep gas above the ambient temperature or the sweep gas is already at a temperature above the ambient temperature. | |
124 | ...... And cooling of sweep gas: |
This subclass is indented under subclass 123. Process in which the sweep gas is cooled. | |
125 | ...... And cooling of solid sorbent: |
This subclass is indented under subclass 123. Process in which the solid sorbent is cooled. | |
126 | .... By heating: |
This subclass is indented under subclass 121. Process in which the solid sorbent is revivified or regenerated by heating. | |
127 | .. Noble gas sorbed: |
This subclass is indented under subclass 116. Process in which a noble gas (i.e., helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), or radon (Rn)) is sorbed. | |
128 | .. Nitrogen containing compound sorbed: |
This subclass is indented under subclass 116. Process in which a nitrogen containing compound is sorbed. | |
129 | ... Nitrogen oxide sorbed: |
This subclass is indented under subclass 128. Process in which a nitrogen oxide (e.g., nitric oxide (NO), nitrogen dioxide (NO2), etc.) is sorbed. | |
130 | .. Nitrogen sorbed: |
This subclass is indented under subclass 116. Process in which nitrogen (N2) is sorbed. | |
131 | .. Halogen or halogen containing compound sorbed: |
This subclass is indented under subclass 116. Process in which a halogen (i.e., fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At)) or a halogen containing compound is sorbed. | |
132 | ... Chlorine or chlorine containing compound sorbed: |
This subclass is indented under subclass 131. Process in which chlorine (Cl) or a chlorine containing compound is sorbed. | |
133 | .. Metal or metal containing compound sorbed: |
This subclass is indented under subclass 116. Process in which a metal or metal containing compound is
sorbed.
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134 | ... Mercury sorbed: |
This subclass is indented under subclass 133. Process in which mercury (Hg) is sorbed. | |
135 | .. Sulfur containing compound sorbed: |
This subclass is indented under subclass 116. Process in which a sulfur (S) containing compound is sorbed. | |
136 | ... Hydrogen sulfide sorbed: |
This subclass is indented under subclass 135. Process in which hydrogen sulfide (H2S) is sorbed. | |
137 | ... Sulfur dioxide or sulfur trioxide sorbed: |
This subclass is indented under subclass 135. Process in which sulfur dioxide (SO2) or sulfur trioxide (SO3) is sorbed. | |
138 | .. Oxygen or ozone sorbed: |
This subclass is indented under subclass 116. Process in which oxygen (O2) or ozone (O3) is sorbed. | |
139 | .. Carbon dioxide sorbed: |
This subclass is indented under subclass 116. Process in which carbon dioxide (CO2) is sorbed. | |
140 | .. Carbon monoxide sorbed: |
This subclass is indented under subclass 116. Process in which carbon monoxide (CO) is sorbed. | |
141 | . Organic gas or liquid particle sorbed (e.g., vapor, mist, etc.): |
This subclass is indented under subclass 90. Process in which an organic gas or liquid particle (e.g., vapor, mist, etc.) is
sorbed from the plurality of gases or the gas with entrained liquid
particles.
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142 | .. Halogen containing compound sorbed (e.g., phosgene, etc.): |
This subclass is indented under subclass 141. Process in which a halogen containing (i.e., fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At)) compound (e.g., phosgene, etc.) is sorbed. | |
143 | .. Hydrocarbon sorbed: |
This subclass is indented under subclass 141. Process in which a hydrocarbon is sorbed. | |
144 | ... Alkene sorbed: |
This subclass is indented under subclass 143. Process in which an alkene (i.e., olefin) is sorbed. | |
145 | ... Alkyne sorbed (e.g., acetylene, etc.): |
This subclass is indented under subclass 143. Process in which an alkyne (i.e., alkine) is sorbed (e.g., acetylene, etc.). | |
146 | ... Gasoline sorbed: |
This subclass is indented under subclass 143. Process in which gasoline is sorbed. | |
147 | ... Benzene ring containing compound sorbed: |
This subclass is indented under subclass 143. Process in which a benzene ring containing compound is sorbed. | |
148 | . And regeneration: |
This subclass is indented under subclass 90. Process in which the solid sorbent is revivified or regenerated.
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149 | LIQUID CONTACTING (E.G., SORPTION, SCRUBBING, ETC.): |
This subclass is indented under the class definition. Process in which the fluid mixture is contacted with a liquid.
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150 | . Including foaming of liquid to aid in the separation: |
This subclass is indented under subclass 149. Process in which a frothy or sudslike dispersion of gas
in the contact liquid is formed to aid in the separation.
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151 | . Mechanical agitation of liquid body to contact gaseous fluid mixture: |
This subclass is indented under subclass 149. Process in which the gaseous fluid mixture is contacted
with the liquid by mechanically stirring a liquid body or mass or
by mechanically disturbing the surface of a liquid body or mass in
such a way that the liquid is flung into the mixture.
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152 | . Coagulating or flocculating agent: |
This subclass is indented under subclass 149. Process in which solid particles are removed from a gas
by a contact liquid that contains an agent that causes the solid
particles to agglomerate.
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153 | . Hydrate inhibitor: |
This subclass is indented under subclass 149. Process in which the contact liquid contains an agent that prevents formation of a substance containing water combined in the molecular form (e.g., agent prevents formation of methane hydrate: CH4-7H2O, ethane hydrate: C2H6-8H2O, chlorine hydrate: Cl2-8H2O, etc.). | |
154 | . Surfactant or wetting agent: |
This subclass is indented under subclass 149. Process in which the contact liquid contains an agent that
reduces the surface tension of the contact liquid.
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155 | . Defoaming or antifoaming agent: |
This subclass is indented under subclass 149. Process in which the contact liquid contains an agent that
either (a) resolves or breaks a frothy or sudslike
dispersion that was formed during the liquid-gas contact
into separate fluid phases or (b) prevents formation
of a frothy or sudslike dispersion during the liquid-gas
contact.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
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156 | . And degasification of a liquid: |
This subclass is indented under subclass 149. Process in which a gas is removed from a liquid.
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157 | .. Defoaming: |
This subclass is indented under subclass 156. Process in which a frothy or sudslike dispersion that was
formed during the liquid-gas contact or was present before
the liquid-gas contact is resolved or broken into separate
fluid phases.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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158 | .. Degasification step occurs first, with removed gas subsequently contacted by liquid: |
This subclass is indented under subclass 156. Process in which a liquid with gas entrained therein is degassed and the removed gas is then contacted with a liquid. | |
159 | .. By stripping with gas: |
This subclass is indented under subclass 156. Process in which the gas is removed from the contact liquid
by passing a gas through or in contact with the contact liquid.
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160 | ... And reduction of pressure (e.g., flashing, etc.): |
This subclass is indented under subclass 159. Process in which the pressure acting on the contact liquid
is decreased.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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161 | .... And heating: |
This subclass is indented under subclass 160. Process in which the contact liquid or a gas is heated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
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162 | ..... Steam is stripping gas: |
This subclass is indented under subclass 161. Process in which the stripping gas is steam. | |
163 | .... Liquid recycled or reused: |
This subclass is indented under subclass 160. Process in which (a) the contact liquid is recirculated for further contact with the fluid mixture or a portion thereof or (b) the contact liquid is used in another step of the process. | |
164 | .... Feed gas or constituent thereof is stripping gas: |
This subclass is indented under subclass 160. Process in which the stripping gas is the gaseous fluid mixture or a portion thereof, before or after being treated or separated. | |
165 | ... And heating: |
This subclass is indented under subclass 159. Process in which the contact liquid or a gas is heated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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166 | .... Liquid recycled or reused: |
This subclass is indented under subclass 165. Process in which (a) the contact liquid is recirculated for further contact with the fluid mixture or a portion thereof or (b) the contact liquid is used in another step of the process. | |
167 | .... Vaporized component of contact liquid is stripping gas: |
This subclass is indented under subclass 165. Process in which a constituent of the contact liquid is gasified and this constituent removes another gas from the contact liquid. | |
168 | .... Steam is stripping gas: |
This subclass is indented under subclass 165. Process in which the stripping gas is steam. | |
169 | ... Liquid recycled or reused: |
This subclass is indented under subclass 159. Process in which (a) the contact liquid is recirculated for further contact with the fluid mixture or a portion thereof or (b) the contact liquid is used in another step of the process. | |
170 | ... Air is stripping gas: |
This subclass is indented under subclass 159. Process in which the stripping gas is air. | |
171 | ... Inert stripping gas: |
This subclass is indented under subclass 159. Process in which the stripping gas is specified as being inert or is one of the following gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), nitrogen (N2), or carbon dioxide (CO2). | |
172 | .. By reduction of pressure (e.g., flashing, etc.): |
This subclass is indented under subclass 156. Process in which the gas is removed from the contact liquid
by decreasing the pressure acting on the contact liquid.
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173 | ... And heating: |
This subclass is indented under subclass 172. Process in which the contact liquid or a gas is heated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
174 | .... Liquid recycled or reused: |
This subclass is indented under subclass 173. Process in which (a) the contact liquid is recirculated for further contact with the fluid mixture or a portion thereof or (b) the contact liquid is used in another step of the process. | |
175 | ... Vacuum applied: |
This subclass is indented under subclass 172. Process in which the step of pressure reduction is accomplished by using a pressure below that of the atmosphere. | |
176 | ... Removed gas recycled: |
This subclass is indented under subclass 172. Process in which the gas removed from the contact liquid is recirculated to the fluid mixture for further contact with liquid. | |
177 | ... Liquid recycled or reused: |
This subclass is indented under subclass 172. Process in which (a) the contact liquid is recirculated for further contact with the fluid mixture or a portion thereof or (b) the contact liquid is used in another step of the process. | |
178 | .. By heating: |
This subclass is indented under subclass 156. Process in which the gas is removed from the contact liquid
by heating.
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179 | ... Liquid recycled or reused: |
This subclass is indented under subclass 178. Process in which (a) the contact liquid is recirculated for further contact with the fluid mixture or a portion thereof or (b) the contact liquid is used in another step of the process. | |
180 | .... Liquid cooling step before being recycled: |
This subclass is indented under subclass 179. Process in which there is a step of lowering the temperature of the liquid before it is recycled. | |
181 | ... Sulfur compound removed: |
This subclass is indented under subclass 178. Process in which a gaseous sulfur (S) compound is sorbed by the contact liquid and then is removed from the contact liquid by heating. | |
182 | ... Halogen compound removed: |
This subclass is indented under subclass 178. Process in which a gaseous halogen compound (i.e., a compound with fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At)) is sorbed by the contact liquid and then is removed from the contact liquid by heating. | |
183 | ... Carbon dioxide removed: |
This subclass is indented under subclass 178. Process in which carbon dioxide (CO2) is sorbed by the contact liquid and then is removed from the contact liquid by heating. | |
184 | ... Organic compound removed: |
This subclass is indented under subclass 178. Process in which a gaseous organic compound is sorbed by the contact liquid and then is removed from the contact liquid by heating. | |
185 | .. By liquid flow modifying or mechanical agitating: |
This subclass is indented under subclass 156. Process in which the gas is removed from the contact liquid
by mixing, stirring, or turbulating by contact
with a solid member or the flow path of the contact liquid is altered.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
186 | .. Liquid recycled or reused: |
This subclass is indented under subclass 156. Process in which (a) the contact liquid is recirculated for further contact with the fluid mixture or a portion thereof or (b) the contact liquid is used in another step of the process. | |
187 | . And recycle or reuse of contact liquid for further contact: |
This subclass is indented under subclass 149. Process in which (a) the contact liquid
is recirculated for further contact with the fluid mixture or a
portion thereof or (b) the contact liquid is used
in another step of the process for further contact with the fluid
mixture or a portion thereof.
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188 | .. After separation of liquid from contact liquid: |
This subclass is indented under subclass 187. Process in which the contact liquid is recycled or reused
after another liquid constituent is removed from the contact liquid.
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| |||||||||
189 | ... And separation of solid from contact liquid: |
This subclass is indented under subclass 188. Process in which a solid is removed from the contact liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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190 | ... By liquid-liquid extraction or formation of azeotrope: |
This subclass is indented under subclass 188. Process in which (a) a liquid extractant
is mixed with the contact liquid in order to cause separation of
a solute from the contact liquid and then the liquid extractant
with the removed solute is separated from the contact liquid or (b) a
compound that forms a mixture of constant boiling point with a solute
in the contact liquid is added to the contact liquid and then the
azeotropic mixture is separated from the contact liquid.
SEE OR SEARCH CLASS:
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191 | ... By stripping with gas: |
This subclass is indented under subclass 188. Process in which the liquid constituent is removed from
the contact liquid by passing a gas through or in contact with the
contact liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
192 | ... By reduction of pressure (e.g., flashing, etc.): |
This subclass is indented under subclass 188. Process in which the liquid constituent is removed from
the contact liquid by decreasing the pressure acting on the contact
liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
193 | ... By heating (e.g., fractional distillation, etc.): |
This subclass is indented under subclass 188. Process in which the liquid constituent is removed from
the contact liquid by heating the contact liquid (e.g., fractional
distillation, etc.).
SEE OR SEARCH THIS CLASS, SUBCLASS:
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194 | .... Indirect heat exchange: |
This subclass is indented under subclass 193. Process in which heat is transferred through a wall. | |
195 | .. After separation of solid from contact liquid: |
This subclass is indented under subclass 187. Process in which the contact liquid is recycled or reused
after a solid is removed from the contact liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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196 | ... By filtration: |
This subclass is indented under subclass 195. Process in which the contact liquid containing the solid to be removed is passed through a foraminous or porous mass which separates the solid from the liquid by entrapment and retention while permitting the liquid to pass through. | |
197 | ... By gravity separation: |
This subclass is indented under subclass 195. Process in which the solid settles to the bottom of a mass of the contact liquid in a settling tank or the solid rises to the top of a mass of the contact liquid in a flotation tank due to the difference in density of the solid and the contact liquid, with the layer of the contact liquid containing the solid being separated from the remainder of the mass of contact liquid. | |
198 | .. And deflection to remove liquid particles from gas: |
This subclass is indented under subclass 187. Process in which the gas and liquid after contact impinge
on a surface to effect an abrupt change in direction of the gas-liquid
mixture or to guide the gas-liquid mixture to cause the
liquid to drop out and remain behind while the gas flows on.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
199 | .. Liquid contact in plural serial stages: |
This subclass is indented under subclass 187. Process in which liquid and gaseous fluid mixture contact
is effected in more than one step or zone in series.
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200 | ... Removal of solid or liquid particles from gas: |
This subclass is indented under subclass 199. Process in which solid or liquid particles are removed from
a gas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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201 | ... Reduction of pressure during liquid contact: |
This subclass is indented under subclass 199. Process in which pressure is decreased during the liquid contact. | |
202 | .. Removal of solid or liquid particles from gas: |
This subclass is indented under subclass 187. Process in which solid or liquid particles are removed from
a gas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
203 | .. Reduction of pressure: |
This subclass is indented under subclass 187. Process in which pressure is decreased. | |
204 | . And recycle of gas for further contact: |
This subclass is indented under subclass 149. Process in which the gaseous fluid mixture or a separated gaseous constituent is recirculated for further contact with the liquid. | |
205 | . And separation of solid from contact liquid: |
This subclass is indented under subclass 149. Process in which a solid is removed from the contact liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
206 | . And separation of liquid from contact liquid: |
This subclass is indented under subclass 149. Process in which a liquid constituent is removed from the
contact liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
207 | .. By stripping with gas: |
This subclass is indented under subclass 206. Process in which the liquid constituent is removed from
the contact liquid by passing a gas through or in contact with the
contact liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
208 | .. By reduction of pressure (e.g., flashing, etc.): |
This subclass is indented under subclass 206. Process in which the liquid constituent is removed from
the contact liquid by decreasing the pressure acting on the contact
liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
209 | .. By heating (e.g., fractional distillation, etc.): |
This subclass is indented under subclass 206. Process in which the liquid constituent is removed from
the contact liquid by heating the contact liquid (e.g., fractional
distillation, etc.).
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| |||||
210 | . On surface extending mass: |
This subclass is indented under subclass 149. Process in which the contact between the gaseous fluid mixture
and the liquid takes place on a material which serves to increase
the area for contact.
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211 | .. Particulate media, fibrous media, or packing elements: |
This subclass is indented under subclass 210. Process in which the surface extending mass consists of (a) a
plurality of small, discrete solids (e.g., particulate
bed, etc.), (b) a
mass of slender, elongated material (e.g., a
mass of wicklike or threadlike material, etc.), or (c) a mass
of randomly oriented or positioned elements which may be molded, machined, or formed, that
possess specific advantages of surface availability for gas and
liquid contacting (e.g., Raschig
rings, Berl saddles, Intalox saddles, Pall
rings, etc.).
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212 | ... And cleaning of particulate media, fibrous media, or packing elements: |
This subclass is indented under subclass 211. Process in which the liquid or the separated constituent is removed from the particulate media, fibrous media, or packing elements. | |
213 | .. Apertured partition member: |
This subclass is indented under subclass 210. Process in which the surface extending mass has one or more
openings through which the gaseous fluid mixture or liquid passes
in order to increase the contact of the gas with the liquid (e.g., use
of perforated plates, bubble cap trays, mesh screens, parallel
wires, parallel bars, etc.).
SEE OR SEARCH CLASS:
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214 | . And filtration of gas: |
This subclass is indented under subclass 149. Process in which a gas and solid or liquid particles entrained
therein is passed through a foraminous or porous mass which separates
the solid or liquid particles from the gas by entrapment and retention
while permitting the gaseous or vaporous constituents to pass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
215 | .. Including movement of filter: |
This subclass is indented under subclass 214. Process in which the filter is not stationary during filtration. | |
216 | . And deflection: |
This subclass is indented under subclass 149. Process in which the gaseous fluid mixture, liquid, or
the gaseous fluid mixture and liquid after contact (a) are
impinged on a solid or liquid mass and the direction of flow is
changed because of the impinging on the solid or liquid mass or (b) are
contacted by a gas stream to effect an abrupt change in direction
of flow.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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217 | .. Liquid is in form of curtain: |
This subclass is indented under subclass 216. Process in which the liquid falls through open space freely in a thin stream for gas-liquid contact. | |
218 | .. Including movement of deflector: |
This subclass is indented under subclass 216. Process in which the deflection is caused by a solid mass that is not stationary during deflection. | |
219 | .. Including rotation of liquid, gaseous fluid mixture, or gas-liquid mixture through 360 degrees in stationary apparatus: |
This subclass is indented under subclass 216. Process in which the liquid, gaseous fluid mixture, or gas-liquid mixture rotates or spins around an axis through 360° in an apparatus that does not move to cause the rotating or spinning. | |
220 | ... With heating or cooling: |
This subclass is indented under subclass 219. Process in which the gaseous fluid mixture, a separated constituent, the contact liquid, or apparatus involved in the process is heated or cooled. | |
221 | .. Deflection in plural serial stages: |
This subclass is indented under subclass 216. Process in which the deflection of the gaseous fluid mixture, liquid, or
the gaseous fluid mixture and liquid after contact occurs in more than
one step or zone in series.
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222 | ... Using diverse type deflectors: |
This subclass is indented under subclass 221. Process in which two or more discrete deflectors are arranged one downstream of the other, at least two of the deflectors being of differing types. | |
223 | . In plural serial stages: |
This subclass is indented under subclass 149. Process in which the fluid mixture is contacted with a liquid
in more than one step or zone in series.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
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224 | .. Liquid sprays: |
This subclass is indented under subclass 223. Process in which the fluid mixture is treated in each zone or stage with liquid which has been finely dispersed. | |
225 | ... With heating or cooling: |
This subclass is indented under subclass 224. Process in which the fluid mixture, a separated constituent, the contact liquid, or apparatus involved in the process is heated or cooled. | |
226 | . Gaseous fluid mixture discharged against or beneath surface of liquid body: |
This subclass is indented under subclass 149. Process in which the gaseous fluid mixture to be treated (a) impinges
onto the top layer of a liquid contained in a reservoir or (b) is
discharged beneath the top layer of a liquid.
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227 | . With heating: |
This subclass is indented under subclass 149. Process in which the fluid mixture, a separated constituent, the contact liquid, or apparatus involved in the process is heated. | |
228 | . With cooling: |
This subclass is indented under subclass 149. Process in which the fluid mixture, a separated constituent, the contact liquid, or apparatus involved in the process is cooled. | |
229 | .. Cooling before liquid contacting: |
This subclass is indented under subclass 228. Process in which the contact with a liquid occurs after the cooling. | |
230 | . Inorganic gas, liquid particle, or solid particle sorbed (e.g., vapor, mist, dust, etc.): |
This subclass is indented under subclass 149. Process in which an inorganic gas, liquid particle, or
solid particle is separated from the plurality of gases or the gas
with entrained liquid or solid particles by the contact with a liquid.
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231 | .. Water sorbed: |
This subclass is indented under subclass 230. Process in which water is separated. | |
232 | .. Nitrogen or nitrogen containing compound sorbed: |
This subclass is indented under subclass 230. Process in which nitrogen (N2) or a nitrogen containing compound is separated. | |
233 | .. Halogen or halogen containing compound sorbed: |
This subclass is indented under subclass 230. Process in which a halogen (i.e., fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At)) or a halogen containing compound is separated. | |
234 | .. Metal or metal containing compound sorbed: |
This subclass is indented under subclass 230. Process in which a metal or a metal containing compound is separated. | |
235 | .. Sulfur or sulfur containing compound sorbed: |
This subclass is indented under subclass 230. Process in which sulfur (S) or a sulfur containing compound is separated. | |
236 | .. Carbon dioxide sorbed: |
This subclass is indented under subclass 230. Process in which carbon dioxide (CO2) is separated. | |
237 | . Organic gas, liquid particle, or solid particle sorbed (e.g., vapor, mist, dust, etc.): |
This subclass is indented under subclass 149. Process in which an organic gas, liquid particle, or
solid particle is separated from the plurality of gases or the gas
with entrained liquid or solid particles by the contact with a liquid.
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238 | .. Alkyne sorbed (e.g., acetylene, etc.): |
This subclass is indented under subclass 237. Process in which an alkyne (i.e., alkine) is separated (e.g., acetylene, etc.). | |
239 | .. Cyclic compound sorbed: |
This subclass is indented under subclass 237. Process in which a cyclic compound is separated. | |
240 | .. Alkene sorbed: |
This subclass is indented under subclass 237. Process in which an alkene (i.e., olefin) is separated. | |
241 | DEGASIFICATION OF LIQUID: |
This subclass is indented under the class definition. Process in which a gas is removed from a liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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242 | . Defoaming: |
This subclass is indented under subclass 241. Process in which a frothy or sudslike dispersion is resolved
or broken into separate fluid phases.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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243 | . Plural successive degassing treatments: |
This subclass is indented under subclass 241. Process in which the liquid is subjected to more than one degasifying step, each step occurring at a different time than another step. | |
244 | .. Boiler feed water degassing: |
This subclass is indented under subclass 243. Process in which the liquid that is degasified is the feed going to a steam generator, whether raw water or condensed steam. | |
245 | .. By stripping with gas: |
This subclass is indented under subclass 243. Process in which in at least one of the degasifying steps
the gas is removed from the liquid by passing a gas through or in
contact with the liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
246 | ... And reduction of pressure (e.g., flashing, etc.): |
This subclass is indented under subclass 245. Process in which the pressure acting on the liquid is decreased.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
247 | .. By reduction of pressure (e.g., flashing, etc.): |
This subclass is indented under subclass 243. Process in which in at least one of the degasifying steps
the gas is removed from the liquid by decreasing the pressure acting
on the liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
248 | ... And liquid flow modifying or mechanical agitating: |
This subclass is indented under subclass 247. Process in which the liquid is mixed, stirred, or turbulated
by contact with a solid member or the flow path of the contact liquid
is altered.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
249 | .... And heating: |
This subclass is indented under subclass 248. Process in which the liquid or the gas is heated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
250 | ... And heating: |
This subclass is indented under subclass 247. Process in which the liquid or the gas is heated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
251 | .. By heating: |
This subclass is indented under subclass 243. Process in which in at least one of the degasifying steps
the gas is removed from the liquid by heating the liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
252 | ... And liquid flow modifying or mechanical agitating: |
This subclass is indented under subclass 251. Process in which the liquid is mixed, stirred, or turbulated
by contact with a solid member or the flow path of the contact liquid
is altered.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
253 | . Emulsion breaking or multiple liquid separating: |
This subclass is indented under subclass 241. Process in which two liquids are separated, one of
which (a) is originally finely dispersed in the other, as
in an emulsion, or (b) is mixed in and flows
with the other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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254 | . And subsequent handling of evolved gas, stripping gas, or residue liquid: |
This subclass is indented under subclass 241. Process in which the removed gas, a stripping gas, or the remaining liquid is further treated or used in some manner involving more than mere removal from the system. | |
255 | .. Evolved gas removed by sweep gas: |
This subclass is indented under subclass 254. Process in which a purge gas is used to carry off the removed gas. | |
256 | .. For indirect heat exchange: |
This subclass is indented under subclass 254. Process in which the removed gas, the stripping gas, or the remaining liquid is used to transfer heat to or to accept heat from any material through a solid wall. | |
257 | ... Gas condensed: |
This subclass is indented under subclass 256. Process in which the removed gas or the stripping gas is the heat exchange medium and is condensed to liquid. | |
258 | .. Gas recycled or further separated: |
This subclass is indented under subclass 254. Process in which (a) the removed gas is used to further strip gas from the liquid, (b) the stripping gas is recovered and is used for further stripping of gas from the liquid, or (c) the gas is subjected to an additional separating treatment. | |
259 | .. Liquid further separated: |
This subclass is indented under subclass 254. Process in which the remaining liquid is subjected to an additional separating treatment. | |
260 | . By liquid flow modifying or mechanical agitating: |
This subclass is indented under subclass 241. Process in which the gas is removed from the liquid by mixing, stirring, or
turbulating by contact with a solid member or the flow path of the
liquid is altered.
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261 | .. Centrifugal force: |
This subclass is indented under subclass 260. Process in which the gas is removed from the liquid by the effect of centrifugal action which causes the liquid with gas entrained therein to assume a rapid arcuate or circular movement. | |
262 | .. Impinging on baffle: |
This subclass is indented under subclass 260. Process in which the gas is removed from the liquid by causing the liquid with gas entrained therein to contact a solid surface in the flow path of the process in order to redirect or alter the flow path and to cause separation of the gas from the liquid. | |
263 | . By stripping with gas: |
This subclass is indented under subclass 241. Process in which the gas is removed from the liquid by passing
a gas through or in contact with the liquid.
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264 | .. Steam is stripping gas: |
This subclass is indented under subclass 263. Process in which the stripping gas is steam. | |
265 | .. Nitrogen is stripping gas: |
This subclass is indented under subclass 263. Process in which the stripping gas is nitrogen (N2). | |
266 | . By reduction of pressure (e.g., flashing, etc.): |
This subclass is indented under subclass 241. Process in which the gas is removed from the liquid by decreasing
the pressure acting on the liquid.
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267 | DEFLECTING: |
This subclass is indented under the class definition. Process in which solid or liquid particles are removed from
a gas by causing the gas and solid or liquid particles entrained
therein (a) to contact a solid surface to effect
an abrupt change in direction of the gas which (i) causes the
solid or liquid particles to drop out and remain behind while the
gas flows on or (ii) causes the solid or liquid
particles to move to the outer periphery of a rotating gas stream
in a concentrated layer to permit such layer to be separated from
the gas with fewer or no entrained particles or (b) to
contact a gas stream to effect an abrupt change in direction of
the gas which causes the solid or liquid particles to drop out and
remain behind while the gas flows on.
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268 | . And filtering: |
This subclass is indented under subclass 267. Process in which a gas and solid or liquid particles entrained
therein is passed through a foraminous or porous mass which separates
the solid or liquid particles from the gas by entrapment and retention
while permitting the gaseous or vaporous constituents to pass.
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269 | . Centrifugal force: |
This subclass is indented under subclass 267. Process in which the solid or liquid particles are removed
from the gas by the effect of centrifugal action causing the gas
and the solid or liquid particles entrained therein to assume a rapid
arcuate or circular movement, with this movement causing
the constituents of the mixture to separate into more or less distinct
layers, depending upon the density of the constituents.
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270 | .. Created by rotating equipment: |
This subclass is indented under subclass 269. Process in which the centrifugal force is caused by a rotating
element moving around an axis.
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271 | .. Tangential gas inflow (e.g., cyclone, etc.): |
This subclass is indented under subclass 269. Process in which the gas enters deflecting apparatus in a path other than one that intersects or is parallel to the longitudinal axis of the apparatus. | |
272 | . Tortuous flow path: |
This subclass is indented under subclass 267. Process in which the gas passes through an apparatus in a path that is repeatedly turned or bent. | |
273 | FILTERING: |
This subclass is indented under the class definition. Process in which a gas and solid or liquid particles entrained
therein are passed through a foraminous or porous mass which separates
the solid or liquid particles from the gas by entrapment and retention
while permitting the gaseous or vaporous constituents to pass through; and
subcombinations of gas filtration processes that do not result in
separation (e.g., cleaning of
a filter, etc.) when the subcombinations
are not provided for elsewhere.
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274 | . Through particulate solids: |
This subclass is indented under subclass 273. Process in which the mass comprises a plurality of small, distinct, separate, nonfilamentous solids.
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275 | .. Moving bed: |
This subclass is indented under subclass 274. Process in which a bed of solid particles is constantly
in motion during the separation.
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276 | .. With cleaning of filter bed: |
This subclass is indented under subclass 274. Process in which the separated solid or liquid particles are removed from the particulate solids. | |
277 | . Moving filter: |
This subclass is indented under subclass 273. Process in which the filter is in motion during the separation. | |
278 | . With cleaning of filter: |
This subclass is indented under subclass 273. Process in which the separated solid or liquid particles
are removed from the filter.
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279 | .. By use of gas: |
This subclass is indented under subclass 278. Process in which the separated solid or liquid particles
are removed from the filter by contacting the filter with a gas, usually
in a direction opposite that of the process fluid flow during separation.
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280 | ... Pulsed gas flow: |
This subclass is indented under subclass 279. Process in which the pressure of the gas that contacts the filter in order to remove the separated solid or liquid particles increases and decreases periodically. | |
281 | .. By use of liquid: |
This subclass is indented under subclass 278. Process in which the separated solid or liquid particles
are removed from the filter by contacting the filter with a liquid, usually
in a direction opposite that of the process fluid flow during separation.
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282 | .. By mechanical manipulation: |
This subclass is indented under subclass 278. Process in which the separated solid or liquid particles
are removed from the filter by effecting filter motion or a relative
movement among portions thereof whereby accumulations are removed
or prevented.
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283 | . With heating of filter: |
This subclass is indented under subclass 273. Process in which the filter is heated. | |
284 | . And reduction of pressure: |
This subclass is indented under subclass 273. Process in which the pressure acting in the process is decreased. | |
285 | . Coated or chemically treated filter: |
This subclass is indented under subclass 273. Process in which the filter is coated or in which the filter is treated with a chemical before its use for filtration. | |
286 | . Plural separate media: |
This subclass is indented under subclass 273. Process in which at least two filters that are spaced apart
are used.
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287 | .. In series: |
This subclass is indented under subclass 286. Process in which the filters are placed one after the other
in succession.
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288 | HEAT EXCHANGING: |
This subclass is indented under the class definition. Process in which there is transfer of heat.
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289 | . Cold wall-hot wall thermal diffusion: |
This subclass is indented under subclass 288. Process in which the separation occurs by contacting the
plurality of gases with plural surfaces of different temperatures
to cause migration of gaseous constituents to one surface or another.
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290 | . Condensing to solid: |
This subclass is indented under subclass 288. Process in which the separated constituent is caused to pass to the solid state. | |
291 | MISCELLANEOUS: |
This subclass is indented under the class definition. Process not otherwise provided for above. | |
900 | SOLID SORBENT: |
Solid sorbent as provided for use in this class in which
particular details are disclosed about the solid sorbent.
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901 | . Activated carbon: |
This subclass is indented under cross-reference art collection 900. Solid sorbent as provided for use in this class in which particular details are disclosed about the activated carbon (C), which is a highly absorbent carbon obtained by heating granulated charcoal, obtained from vegetable matter, to exhaust contained gases. | |
902 | . Molecular sieve: |
This subclass is indented under cross-reference art
collection 900. Solid sorbent as provided for use in this class in which
particular details are disclosed about the molecular sieve which is
usually a natural or synthetic metal aluminum silicate.
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903 | .. Carbon: |
This subclass is indented under cross-reference art collection 902. Solid sorbent as provided for use in this class in which the molecular sieve material is carbon (C). | |
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
This subclass has no definition. | |