Helium recovery and purification by dual reflux pressure swing adsorption

Roman Weh,Gongkui Xiao,Ehsan Sadeghi F. Pouya,Eric May

Separation and Purification Technology（2022）

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摘要

•Non-cryogenic helium recovery and purification by DR PSA.•Self-contained system flexible for integration to existing facilities.•Enriching helium from 1 mol% He + 99 mol% N2 mixture to > 99.999 mol% He.•Helium recovery comparable to cryogenic process with room for further improvement.

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关键词

Helium recovery,Helium purification,zeolite 13X,DR PSA,Recycle,Adsorption

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