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US 2011/0236134 A1Published application
Carbon dioxide (co2) as cushion gas for compressed air energy storage (caes)
AssigneeThe Regents of the University of California
InventorCurtis M. Oldenburg
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Abstract
The present invention provides for the utilization of a cushion gas in compressed air energy storage (CAES). In particular, the use of carbon dioxide (CO2) as the cushion gas has been provided. Using CO2 as the cushion gas enhances the effectiveness of the CAES by allowing greater amounts of compressed air to be stored and extracted.
Claims17
A method of utilizing a cushion gas for compressed air energy storage comprising:
- (a) providing a reservoir,
- (b) filling the reservoir with a predetermined amount of cushion gas, and
- (c) injecting compressed air into the reservoir,
- whereby the cushion gas will pressurize and serve to force the compressed air from the reservoir when needed.
1 more element
A method of sequestering carbon comprising:
- (a) providing a reservoir, and
- (b) filling the reservoir with a predetermined amount CO2,
- whereby the CO2 serves as a cushion gas for compressed air energy storage.
A system useful as a compressed air energy storage comprising:
- (a) a reservoir,
- (b) a predetermined amount of CO2, wherein the CO2 serves as a cushion gas for compressed air,
- (c) and an air compressor, wherein the air compressor injects the compressed air into the reservoir.
Dependencies are inferred from the claim text.