Gas separation: processes – Solid sorption – Including reduction of pressure
Patent
1997-12-22
2000-04-18
Spitzer, Robert
Gas separation: processes
Solid sorption
Including reduction of pressure
95101, 95102, 95105, 95113, 95130, 96125, 96130, 96144, B01D 53047, B01D 5306
Patent
active
060510501
ABSTRACT:
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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Doman David G.
Keefer Bowie G.
Questor Industries Inc.
Spitzer Robert
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