1. CPC Sections
  2. CPC Section C
  3. CPC Class C10
  4. CPC Subclass C10K
Printable version [PDF]
Version: 2025.01
Loading Scheme...
CPC
COOPERATIVE PATENT CLASSIFICATION
​
C10K
PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE [2018-08]
WARNING

  • In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.
C10K 1/00
Purifying combustible gases containing carbon monoxide (isolation of hydrogen from mixtures containing hydrogen and carbon monoxide C01B 3/50) [2013-01]
C10K 1/001
.
{working-up the condensates (recovering of NH3 and NH4 salts C01C 1/00; working-up or purifying tars and tar-oils C10C 1/00)} [2013-01]
C10K 1/002
.
{Removal of contaminants} [2013-01]
C10K 1/003
. .
{of acid contaminants, e.g. acid gas removal} [2013-01]
C10K 1/004
. . .
{Sulfur containing contaminants, e.g. hydrogen sulfide} [2013-01]
C10K 1/005
. . .
{Carbon dioxide} [2013-01]
C10K 1/006
. . .
{Hydrogen cyanide} [2013-01]
C10K 1/007
. .
{of metal compounds} [2013-01]
C10K 1/008
. . .
{Alkali metal compounds} [2013-01]
C10K 1/02
.
Dust removal [2013-01]
C10K 1/022
. .
{by baffle plates} [2013-01]
C10K 1/024
. .
{by filtration} [2013-01]
C10K 1/026
. .
{by centrifugal forces (cyclones B04C)} [2013-01]
C10K 1/028
. .
{by electrostatic precipitation (separating dispersed particles from gases or vapour by electrostatic effect in general B03C 3/00)} [2013-01]
C10K 1/04
.
by cooling to condense non-gaseous materials {(C10K 1/001 takes precedence)} [2013-01]
C10K 1/043
. .
{adding solvents as vapour to prevent naphthalene- or resin deposits} [2013-01]
C10K 1/046
. .
{Reducing the tar content} [2013-01]
C10K 1/06
. .
combined with spraying with water {(C10K 1/001 takes precedence)} [2013-01]
C10K 1/08
.
by washing with liquids; Reviving the used wash liquors (gas washers B01D) [2013-01]
C10K 1/085
. .
{two direct washing treatments, one with an aqueous liquid and one with a non-aqueous liquid} [2017-02]
C10K 1/10
. .
with aqueous liquids {(alkaline reacting aqueous liquids C10K 1/12)} [2013-01]
C10K 1/101
. . .
{with water only} [2013-01]
C10K 1/102
. . .
{containing free acid} [2013-01]
C10K 1/103
. . .
{alkali- or earth-alkali- or NH4 salts or inorganic acids derived from sulfur} [2013-01]
C10K 1/105
. . .
{containing metal compounds other than alkali- or earth-alkali carbonates, -hydroxides, oxides, or salts of inorganic acids derived from sulfur} [2013-01]
C10K 1/106
. . . .
{containing Fe compounds} [2013-01]
C10K 1/107
. . . .
{containing As-, Sb-, Sn compounds} [2013-01]
C10K 1/108
. . . .
{containing Cu compounds} [2013-01]
C10K 1/12
. . .
alkaline-reacting {including the revival of the used wash liquors} [2013-01]
C10K 1/121
. . . .
{containing NH3 only (possibly in combination with NH4 salts)} [2013-01]
C10K 1/122
. . . .
{containing only carbonates, bicarbonates, hydroxides or oxides of alkali-metals (including Mg)} [2013-01]
C10K 1/123
. . . .
{containing alkali-, earth-alkali- or NH4 salts of inorganic acids derived from sulfur} [2013-01]
C10K 1/124
. . . .
{containing metal compounds other than alkali- or earth-alkali carbonates, hydroxides- or oxides- or salts of inorganic acids derived from sulfur} [2013-01]
C10K 1/125
. . . . .
{containing Fe compounds} [2013-01]
C10K 1/126
. . . . .
{containing As-, Sb-, Sn compounds} [2013-01]
C10K 1/127
. . . . .
{containing Cu compounds} [2013-01]
C10K 1/128
. . . .
{containing organic oxygen transferring compounds, e.g. sulfoxides} [2013-01]
C10K 1/14
. . . .
organic [2013-01]
C10K 1/143
. . . . .
{containing amino groups} [2013-01]
C10K 1/146
. . . . . .
{alkali-, earth-alkali- or NH4 salts} [2013-01]
C10K 1/16
. .
with non-aqueous liquids [2013-01]
C10K 1/165
. . .
{at temperatures below zero degrees Celsius} [2013-01]
C10K 1/18
. . .
hydrocarbon oils {(C10K 1/165 takes precedence)} [2013-01]
C10K 1/20
.
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)} [2013-01]
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)} [2013-01]
C10K 1/22
. .
Apparatus, e.g. dry box purifiers [2013-01]
C10K 1/24
. . .
Supporting means for the purifying material [2013-01]
C10K 1/26
. .
Regeneration of the purifying material {contains also apparatus for the regeneration of the purifying material} [2013-01]
C10K 1/28
. .
Controlling the gas flow through the purifiers [2013-01]
C10K 1/30
. .
with moving purifying masses [2013-01]
C10K 1/32
.
with selectively adsorptive solids, e.g. active carbon [2013-01]
C10K 1/34
.
by catalytic conversion of impurities to more readily removable materials [2013-01]
C10K 3/00
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 [2013-01]
C10K 3/001
.
{by thermal treatment} [2013-01]
C10K 3/003
. .
{Reducing the tar content} [2013-01]
C10K 3/005
. . .
{by partial oxidation} [2013-01]
C10K 3/006
. . .
{by steam reforming} [2013-01]
C10K 3/008
. . .
{by cracking} [2013-01]
C10K 3/02
.
by catalytic treatment [2013-01]
C10K 3/023
. .
{Reducing the tar content} [2013-01]
C10K 3/026
. .
{Increasing the carbon monoxide content, e.g. reverse water-gas shift [RWGS]} [2013-01]
C10K 3/04
. .
reducing the carbon monoxide content {, e.g. water-gas shift [WGS]} [2016-08]
C10K 3/06
.
by mixing with gases [2013-01]