SOFC system producing reduced atmospheric carbon dioxide using a molten carbonated carbon dioxide pump
First Claim
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1. A method of operating a fuel cell system, comprising:
- providing a hydrocarbon fuel inlet stream and a carbon dioxide containing air inlet stream into the fuel cell system; and
operating the system to generate electricity and a plurality of output streams consisting essentially of oxygen and carbon dioxide depleted air, water, and carbon dioxide available for sequestration.
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Abstract
A solid oxide fuel cell power generation system'"'"'s entire output is made up of three streams: water, sequestered carbon dioxide provided into a storage tank, and carbon dioxide depleted air. Thus, the system generates electricity from a hydrocarbon fuel, while outputting substantially no pollutants into the atmosphere and cleaning the air by removing carbon dioxide from the air exhaust stream. Thus, the system outputs cleaner air than it takes in without releasing pollutants into the atmosphere, while generating electricity from a readily available hydrocarbon fuel, such as natural gas.
102 Citations
21 Claims
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1. A method of operating a fuel cell system, comprising:
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providing a hydrocarbon fuel inlet stream and a carbon dioxide containing air inlet stream into the fuel cell system; and operating the system to generate electricity and a plurality of output streams consisting essentially of oxygen and carbon dioxide depleted air, water, and carbon dioxide available for sequestration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A fuel cell system, comprising:
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a fuel cell stack; a carbon dioxide pump; a first conduit which operatively connects a fuel exhaust outlet of the fuel cell stack to a first inlet of the carbon dioxide pump; and a second conduit which operatively connects an air exhaust outlet of the carbon dioxide pump to an air inlet of the fuel cell stack. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A fuel cell system comprising:
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a fuel cell stack; and a first means for removing carbon dioxide from a stack air inlet stream using a stack fuel exhaust stream. - View Dependent Claims (18, 19, 20)
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21. A method of operating a fuel cell system, comprising:
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providing a hydrocarbon fuel inlet stream towards a fuel cell stack; providing an air inlet stream and at least a portion of a fuel exhaust stream of the fuel cell stack to a molten carbonate carbon dioxide pump to remove carbon dioxide from the air inlet stream; and providing a carbon dioxide depleted air stream from the carbon dioxide pump into the fuel cell stack.
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Specification