Modular pressure swing adsorption with energy recovery

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United States of America Patent

PATENT NO 6051050
SERIAL NO

08995906

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Pressure swing adsorption (PSA) separation of a feed gas mixture is performed within an apparatus having typically a single prime mover powering a feed compressor for one or multiple rotary PSA modules in parallel, each module including a rotor with a large number of angularly spaced adsorber elements, with valve surfaces between the rotor and a stator so that individual adsorber elements are opened to compartments for staged pressurization and blowdown, with thermally boosted energy recovery from staged expansion of countercurrent blowdown and light reflux gases, and a plurality of adsorber elements opened at any instant to each compartment so that each compressor and expander stage operates under substantially steady conditions of flow and pressure.

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Patent Owner(s)

  • AIR PRODUCTS AND CHEMICALS, INC.;QUEST AIR TECHNOLOGIES INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Doman, David G Delta, CA 13 941
Keefer, Bowie G Vancouver, CA 62 5103

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