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US 10,766,770 B2Granted
Systems and methods of production of hydrogen containing compounds using products of fuel cells
AssigneeGrannus LLC
InventorsJames Kelly Merritt, Matthew Cox
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Abstract
Disclosed herein are methods and systems for the production of hydrogen-containing compounds, such as ammonia and urea from a product stream of a fuel cell unit. The production of ammonia and optionally urea can also include a net power production. Alternatively, the hydrogen stream from the fuel cell unit can be directed to the production of synthetic hydrocarbons liquids.
Claims6
A method for the production of ammonia from byproduct gases of a fuel cell process, the method comprising the steps of:
- supplying a hydrocarbon feedstock and oxygen to a fuel cell unit to produce a first product stream containing gasses of carbon dioxide and hydrogen;
- supplying the gaseous product stream containing carbon dioxide and hydrogen from the fuel cell to a first condenser to remove water and produce a second product stream containing substantially pure hydrogen and carbon dioxide as compared to the first product stream;
- supplying the second product stream to a carbon dioxide stripper to produce a first high purity hydrogen stream and a carbon dioxide stream, the carbon dioxide stripper being charged with a solvent suitable for extracting carbon dioxide, and the first high purity hydrogen stream containing minor amounts of inert gases and carbon dioxide;
- supplying the first high purity hydrogen stream to a pressure swine adsorption unit to produce a second high purity hydrogen stream;
- supplying the second high purity hydrogen stream from the pressure swing adsorption unit and nitrogen gas from an air separation unit to a second reactor containing a second catalyst to produce an ammonia product stream.
2 more elements
Dependencies are inferred from the claim text.