HYDROGEN STORAGE AND SUPPLY METHOD

WIPO Patent Application WO2005100239

A3

A method of storing and supplying a gaseous hydrogen product (10) to a pipeline (12) under a product purity specification in which a hydrogen stream (30) made up of gaseous hydrogen is compressed (32) to form a compressed hydrogen stream (34) and introduced into a salt cavern (36) for storage. A crude hydrogen stream (40; 41), contaminated from storage in the salt cavern (36) is recovered and purified (38; 38') by sufficiently removing at least carbon dioxide and water vapor to produce a hydrogen product stream (10) having an impurity level at or below the product purity specification. The hydrogen product stream (10) is supplied back to the pipeline (12). Alternatively, during periods of low demand, hydrogen produced by a production facility (20) is both purified (38') and supplied to the pipeline (12) and stored in the salt cavern (36). During high demand period, both the output of the production facility (22) and hydrogen (40) retrieved from the salt cavern (36) are purified (38') and supplied to the pipeline (12).

JPH06205921

ADSORPTION AGENT CARTRIDGE AND RECLAIMING METHOD FOR ADSORPTION AGENT

MORROW JEFFREY M (US)
CORRAO MARIANNE (US)
HYLKEMA STEVEN (US)

PCT/US2005/009353

February 09, 2006

March 22, 2005

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PRAXAIR TECHNOLOGY INC (US)
MORROW JEFFREY M (US)
CORRAO MARIANNE (US)
HYLKEMA STEVEN (US)

B01D53/04; C01B3/50; C01B3/56; C01B3/58; (IPC1-7): C01B3/50

US20040123738A1

2004-07-01

GEHLE ET AL: "A Brief History of Salt Cavern Use.", 2000, XP008115584
See also references of EP 1735236A4

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