Gas separation process

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United States of America Patent

PATENT NO 9433886
APP PUB NO 20130202512A1
SERIAL NO

13755976

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Abstract

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A process for the separation of carbon dioxide from gas mixtures is disclosed in which a metal oxide sorbent, which is used to capture and release carbon dioxide, is recycled. The process incorporates the regeneration of the carbon dioxide capture capacity of the metal oxide to maintain a high capture capacity over many cycles. The regeneration involves hydrating the metal oxide and then heating the resulting metal hydroxide under a gas atmosphere that is effective to suppress the dehydration of the hydroxide so that dehydration occurs at an elevated temperature. The regeneration may also be used independently from the carbon dioxide separation process to produce, from a metal hydroxide, a metal oxide having an enhanced resistance to attrition and fragmentation.

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Patent Owner(s)

Patent OwnerAddress
CALLAGHAN INNOVATION69 GRACEFIELD ROAD LOWER HUTT 5040

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Henderson, Carolyn Mary Lower Hutt, NZ 2 22
Materic, Vlatko Wellington, NZ 5 36
Smedley, Stuart Oceanside, US 9 349

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