CPC Definition - Subclass C10K
This place covers:
Purifying combustible gases containing carbon monoxide, e.g. synthesis gas, e.g. by dust removal, condensing non-gaseous materials, washing, adsorption using solids such as active carbon; including regeneration of purifying material.
Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. by altering the calorific value, by reducing the carbon monoxide content (e.g. to zero), by catalytic treatment or by mixing with gases.
Production of synthesis gas (syngas) from liquid or gaseous hydrocarbons is covered by C01B 3/00.
Production of combustible gases containing carbon monoxide (including producer gas, wood gas, town gas, synthesis gas, manufactured gas and water gas) from solid carbonaceous fuels, is matter for C10J.
Destructive distillation processes, e.g. carbonisation or coking, and excluding gasification processes, are covered by subclass C10B. Combinations of gasification and destructive distillation are covered by group C10J 3/58.
Other gaseous fuels, including natural gas, substitute natural gas or synthetic natural gas (SNG) and liquefied petroleum gas (LPG), are covered by group C10L 3/00.
Modifying the properties of any distillation gases inside the oven is covered by subclass C10B
This place does not cover:
Isolation of hydrogen from mixtures containing hydrogen and carbon monoxide |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Multi-step process for production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen | |
Multi-step process for preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases, one step being the formation of initial mixture of carbon oxides and hydrogen for synthesis | |
Multi-step process for production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon | |
Plants with an integrated combined cycle, having more than one engine delivering power externally to the plant | |
Plant characterised by the engines using gaseous fuel generated in the plant from solid fuel | |
Gas turbine plant with separate fuel gasifiers | |
Carburettors for supplying combustible mixtures to internal combustion engines |
Examples of places in relation to which this place is residual:
Plants with an integrated combined cycle, having more than one engine delivering power externally to the plant | 01K23/06 |
Separation of gases or vapour by diffusion | |
Multi-step process for production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen | |
Multi-step process for preparation of ammonia | |
Multi-step process for preparation of hydrocarbons from carbon monoxide with hydrogen | |
Multi-step process for preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases, one step being the formation of initial | |
Preparation of urea | |
Multi-step process for production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon | |
Production of synthetic natural gas | |
Plant characterised by the engines using gaseous fuel generated in the plant from solid fuel | |
Gas turbine plant with separate fuel gasifiers | |
Combination of fuel cell with means for gasification of solid fuel |
Attention is drawn to the following places, which may be of interest for search:
Gas washers | |
Chemical processes such as purification of gases or modification of the chemical composition thereof, applied to compositions other than combustible gases containing carbon monoxide | |
Isolation of inorganic compounds from gaseous mixtures which may include carbon monoxide | |
Processes of modifying the properties of distillation gases inside an oven | |
Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K 3/02 or C10K 3/04 |
In the absence of an indication to the contrary, classification is made in the last appropriate place ("last place rule")
When necessary, multiple classification symbols have to be added to cover all the purification steps.
In this place, the following terms or expressions are used with the meaning indicated:
Combustible gas containing carbon monoxide | syngas, synthesis gas, coke oven gas, pyrolysis gas, carbonisation gas |
In patent documents, the following abbreviations are often used:
COG | Coke Oven Gas |
Attention is drawn to the following places, which may be of interest for search:
Filters, i.e. particle separators, or filtering processes specially modified for separating dispersed particles from gases or vapours | |
Separating dispersed particles from gases, air or vapours by liquid as separating agent | |
Apparatus using free vortex flow, e.g. cyclones |
Attention is drawn to the following places, which may be of interest for search:
Separating dispersed particles from gases or vapours by inertia |
Attention is drawn to the following places, which may be of interest for search:
Filters, i.e. particle separators, or filtering processes specially modified for separating dispersed particles from gases or vapours | |
Separating dispersed particles from gases, air or vapours by liquid as separating agent | |
Apparatus using free vortex flow, e.g. cyclones |
This place does not cover:
Apparatus using free vortex flow, e.g. cyclones, per se |
Attention is drawn to the following places, which may be of interest for search:
Separating dispersed particles from gases or vapours by centrifugal force |
C10K 1/001 takes precedence
C10K 1/001 takes precedence
This place covers:
Acid gas removal, e.g. H2S, HCN, CO2, by absorption process, e.g. amine scrubbing
Attention is drawn to the following places, which may be of interest for search:
Gas washers per se | |
Separation of gases or vapours by absorption, such as acid gas removal |
C10K 1/165 takes precedence
This place covers:
Adsorption of impurities
This place does not cover:
Separation of gases by adsorption, e.g. PSA | |
Separation of gases by chemical reaction |
Attention is drawn to the following places, which may be of interest for search:
Adsorbents per se |
Attention is drawn to the following places, which may be of interest for search:
Adsorbents per se |
This place covers:
e.g. carbonyl sulfide (COS) hydrolysis
In this place, the following terms or expressions are used with the meaning indicated:
Calorific value | Thermal energy content |
Attention is drawn to the following places, which may be of interest for search:
Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of water vapour with carbon monoxide, water gas-shift reaction or WGS |