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US 2026/0237708 A1Published application
Rechargeable carbon battery with finishing stack
AssigneeNoon Energy
InventorsTheis L. SKAFTE, Sunjay G. MELKOTE, Pawel A. PIOTROWICZ, Christopher Ronald GRAVES, Usama SOHAIL, Jonathan W.H. WU
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Abstract
Set forth herein are solid-oxide electrochemical cells (SOC) that are configured with thermochemical reactors as carbon-oxygen batteries. The SOCs are, in various embodiments, capable of operating in discharge mode to provide a gas that maximizes the amount of carbon dioxide CO2 and minimizes the amount of carbon monoxide CO prior to storing the gas.
Claims75
A process comprising:
- flowing a first gas that comprises carbon monoxide (CO) and carbon dioxide (CO2) to a main solid-oxide cell (SOC) stack;
- oxidizing the CO in the first gas in the main SOC stack to provide a second gas that comprises CO and CO2 wherein the second gas has a lower partial pressure of CO (pCO) than the first gas;
- and
- flowing the first gas to a finishing SOC stack;
- oxidizing the CO in the first gas in the finishing SOC to provide a third gas wherein the third gas has a lower pCO than the second gas.
2 more elements
A process comprising:
- flowing a first gas that comprises carbon monoxide (CO) and carbon dioxide (CO2) to a main solid-oxide cell (SOC) stack;
- oxidizing the CO in the first gas in the main SOC stack to provide a second gas that comprises CO and CO2 wherein the second gas has a lower partial pressure CO (pCO) than the first gas;
- flowing the second gas to a finishing SOC stack;
- and
- oxidizing the CO in the second gas in the finishing SOC to provide a third gas wherein the third gas has a lower pCO than the second gas.
2 more elements
A process comprising:
- flowing a first gas that comprises carbon monoxide (CO) and carbon dioxide (CO2) to a solid-oxide cell (SOC) stack;
- oxidizing the CO in the first gas in the SOC stack to provide a second gas that comprises CO and CO2 wherein the second gas has a lower partial pressure CO (pCO) than the first gas;
- separating the second gas into a third gas and a fourth gas;
- wherein the fourth gas has a lower partial pressure CO (pCO) than the third gas;
- flowing the third gas to a thermochemical reactor;
- and
- storing the fourth gas.
4 more elements
Dependencies are inferred from the claim text.