Energy storage using an REP with an engine

Jahnke, Fred C.; Lambrech, Matthew

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DOE OSTI · 1651008

Energy storage using an REP with an engine

Jahnke, Fred C.·Lambrech, Matthew

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Abstract

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.

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BibTeX RIS

Jahnke, Fred C., Lambrech, Matthew. 2020-06-09. Energy storage using an REP with an engine. https://www.osti.gov/biblio/1651008

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