capture during compressed air energy storage
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United States of America Patent
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Apr 17, 2012
Grant Date -
Jun 25, 2009
app pub date -
Dec 21, 2007
filing date -
Dec 21, 2007
priority date (Note) -
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Abstract
A compressed air energy storage system and method of capturing CO2 during compressed air energy storage the system and method including a gas inlet pipe, at least one air compressor stage attached to the gas inlet pipe and adapted for compression of a gas, a heat transfer system to cool the gas during or after compression, the heat being recycled throughout the system, at least one absorption bed for separating CO2 from the compressed gas attached to the heat transfer system, at least one compressed gas reservoir having an inlet and an outlet, the reservoir attached at its inlet to the absorption bed, at least one preheater stage attached to the outlet of the compressed gas reservoir for heating a compressed gas after storage in the compressed gas reservoir, and at least one gas expander attached to the preheater stage and adapted for the expansion of the compressed gas.
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