Energy storage using an REP with an engine
Patent
·
OSTI ID:1651008
An energy storage system includes a power plant configured to generate an exhaust gas comprising carbon dioxide. The energy storage system further includes a first fuel cell configured to operate in reverse as an electrolyzer. The first fuel cell is configured to receive at least a portion of the exhaust gas from the power plant. An anode is configured to receive carbon dioxide via the exhaust gas and methane from a separate feed, and the anode is configured to output a hydrogen-containing gas mixture. The energy storage system further includes a reformer configured to methanate the hydrogen-containing gas mixture to convert substantially all of the carbon monoxide in the hydrogen-containing gas mixture to methane. The energy storage system further includes a second fuel cell operating in reverse as a hydrogen pump, the second fuel cell configured to separate hydrogen from a gas mixture output by the reformer.
- Research Organization:
- FuelCell Energy, Inc., Danbury, CT (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EE0006669
- Assignee:
- FuelCell Energy, Inc. (Danbury, CT)
- Patent Number(s):
- 10,680,265
- Application Number:
- 15/980,305
- OSTI ID:
- 1651008
- Country of Publication:
- United States
- Language:
- English
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