Hydrogen storage method and system

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United States of America Patent

PATENT NO 8425149
APP PUB NO 20110305515A1
SERIAL NO

12797955

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and system for storing and supplying hydrogen to a hydrogen pipeline in which a compressed hydrogen feed stream is introduced into a salt cavern for storage and a stored hydrogen stream is retrieved from the salt cavern and reintroduced into the hydrogen pipeline. A minimum quantity of stored hydrogen is maintained in the salt cavern to produce a stagnant layer having a carbon dioxide content along the cavern wall and the top of a residual brine layer located within the salt cavern. The compressed hydrogen feed stream is introduced into the salt cavern and the stored hydrogen stream is withdrawn without disturbing the stagnant layer to prevent carbon dioxide contamination from being drawn into the stored hydrogen stream being reintroduced into the hydrogen pipeline. This allows the stored hydrogen stream to be reintroduced into the hydrogen pipeline without carbon dioxide removal.

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Patent Owner(s)

Patent OwnerAddress
PRAXAIR TECHNOLOGY INC10 RIVERVIEW DR DANBURY CT 06810

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Drnevich, Raymond Francis Clarence Center, US 75 1579

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