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Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
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C10K 1/00
Purifying combustible gases containing carbon monoxide (isolation of hydrogen from mixtures containing hydrogen and carbon monoxide C01B 3/50)
.
{
working-up the condensates (recovering of NH3 and NH4 salts C01C 1/00; working-up or purifying tars and tar-oils C10C 1/00)
}
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C10K 1/002
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{
Removal of contaminants
}
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C10K 1/003
. .
{
of acid contaminants, e.g. acid gas removal
}
C10K 1/004
. . .
{
Sulfur containing contaminants, e.g. hydrogen sulfide
}
C10K 1/005
. . .
{
Carbon dioxide
}
C10K 1/006
. . .
{
Hydrogen cyanide
}
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C10K 1/007
. .
{
of metal compounds
}
C10K 1/008
. . .
{
Alkali metal compounds
}
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.
Dust removal
. .
{
by baffle plates
}
. .
{
by filtration
}
. .
{
by centrifugal forces (cyclones B04C)
}
C10K 1/028
. .
{
by electrostatic precipitation (separating dispersed particles from gases or vapour by electrostatic effect in general B03C 3/00)
}
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by cooling to condense non-gaseous materials
{
(C10K 1/001 takes precedence)
}
C10K 1/043
. .
{
adding solvents as vapour to prevent naphthalene- or resin deposits
}
C10K 1/046
. .
{
Reducing the tar content
}
. .
combined with spraying with water
{
(C10K 1/001 takes precedence)
}
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by washing with liquids; Reviving the used wash liquors (gas washers B01D)
C10K 1/085
. .
{
two direct washing treatments, one with an aquous liquid and one with a non-aqueous liquid
}
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C10K 1/10
. .
with aqueous liquids
{
alkaline reacting aqueous liquids C10K 1/12
}
C10K 1/101
. . .
{
with water only
}
C10K 1/102
. . .
{
containing free acid
}
C10K 1/103
. . .
{
alkali- or earth-alkali- or NH4 salts or inorganic acids derived from sulfur
}
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C10K 1/105
. . .
{
containing metal compounds other than alkali- or earth-alkali carbonates, -hydroxides, oxides, or salts of inorganic acids derived from sulfur
}
C10K 1/106
. . . .
{
containing Fe compounds
}
C10K 1/107
. . . .
{
containing As-, Sb-, Sn compounds
}
C10K 1/108
. . . .
{
containing Cu compounds
}
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C10K 1/12
. . .
alkaline-reacting
{
including the revival of the used wash liquors
}
C10K 1/121
. . . .
{
containing NH3 only (possibly in combination with NH4 salts)
}
C10K 1/122
. . . .
{
containing only carbonates, bicarbonates, hydroxides or oxides of alkali-metals (including Mg)
}
C10K 1/123
. . . .
{
containing alkali-, earth-alkali- or NH4 salts of inorganic acids derived from sulfur
}
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C10K 1/124
. . . .
{
containing metal compounds other than alkali- or earth-alkali carbonates, hydroxides- or oxides- or salts of inorganic acids derived from sulfur
}
C10K 1/125
. . . . .
{
containing Fe compounds
}
C10K 1/126
. . . . .
{
containing As-, Sb-, Sn compounds
}
C10K 1/127
. . . . .
{
containing Cu compounds
}
C10K 1/128
. . . .
{
containing organic oxygen transferring compounds, e.g. sulfoxides
}
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C10K 1/14
. . . .
organic
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C10K 1/143
. . . . .
{
containing amino groups
}
C10K 1/146
. . . . . .
{
alkali-, earth-alkali- or NH4 salts
}
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C10K 1/16
. .
with non-aqueous liquids
C10K 1/165
. . .
{
at temperatures below zero degrees Celsius
}
. . .
hydrocarbon oils
{
(C10K 1/165 takes precedence)
}
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by treating with solids; Regenerating spent purifying masses
{
(separation by adsorption B01D 53/02; separation by chemical reaction B01D 53/34 ; refining of hydrocarbon oils with acids C10G 17/02, C10G 27/02, C10G 29/12)
}
C10K 1/205
. .
{
Methods and apparatus for treating the purifying masses without their regeneration (recovering of sulfur C01B 17/00; recovering of cyanide compounds C01C 3/00)
}
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C10K 1/22
. .
Apparatus, e.g. dry box purifiers
C10K 1/24
. . .
Supporting means for the purifying material
C10K 1/26
. .
Regeneration of the purifying material
{
contains also apparatus for the regeneration of the purifying material
}
C10K 1/28
. .
Controlling the gas flow through the purifiers
C10K 1/30
. .
with moving purifying masses
.
with selectively adsorptive solids, e.g. active carbon
.
by catalytic conversion of impurities to more readily removable materials
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Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide
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C10K 3/001
.
{
by thermal treatment
}
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C10K 3/003
. .
{
Reducing the tar content
}
C10K 3/005
. . .
{
by partial oxidation
}
C10K 3/006
. . .
{
by steam reforming
}
C10K 3/008
. . .
{
by cracking
}
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C10K 3/02
.
by catalytic treatment
C10K 3/023
. .
{
Reducing the tar content
}
C10K 3/026
. .
{
Increasing the carbon monoxide content, e.g. reverse water-gas shift [RWGS
}
]
. .
reducing the carbon monoxide content
{
e.g. water-gas shift [WGS
}
]
C10K 3/06
.
by mixing with gases
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Last Modified: 10/10/2013