Carbon dioxide methanation at low temperature and elevated pressure
AssigneeSaudi Arabian Oil Company
InventorsGuodong Zhan, Bodong Li, Abdulwahab S. Aljohar
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Abstract
An integrated carbon dioxide methanation system and a method of making methane are provided. An exemplary method of making methane includes generating electricity using renewable energy sources, obtaining carbon dioxide from biogas processing or post combustion carbon capture, obtaining hydrogen from water splitting or gasification of biomass, combining the carbon dioxide and the hydrogen to form a mixture, and reacting the mixture with a nickel catalyst made using atomic layer deposition to yield methane.
Claims17
A method of making methane, the method comprising:
- generating electricity using renewable energy sources;
- obtaining carbon dioxide from biogas processing or post combustion carbon capture;
- obtaining hydrogen from water splitting or gasification of biomass;
- combining the carbon dioxide and the hydrogen to form a mixture;
- and
- reacting the mixture with a nickel carbon dioxide methanation catalyst to yield methane, wherein the nickel carbon dioxide methanation catalyst comprises particles of silica, alumina, or another metal oxide, and one or more layers of alumina deposited on the particles using atomic layer deposition.
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An integrated carbon dioxide methanation system, the system comprising:
- a catalytic reactor comprising one or more nickel carbon dioxide methanation catalysts comprising particles of silica, alumina, or another metal oxide, and one or more layers of alumina deposited on the particles using atomic layer deposition;
- a carbon dioxide source fluidically coupled to the catalytic reactor, wherein the carbon dioxide source obtains carbon dioxide from biogas or post combustion carbon capture;
- a hydrogen source fluidically coupled to the catalytic reactor, wherein the hydrogen source obtains hydrogen from water splitting or gasification of biomass;
- and
- an electrical source electrically coupled to the catalytic reactor, the carbon dioxide source, and the hydrogen source, wherein the electrical source generates electricity using renewable energy sources.
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Dependencies are inferred from the claim text.