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특허 상세정보

High purity membrane nitrogen

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-053/22   
미국특허분류(USC) 95/54 ; 95/45 ; 96/9
출원번호 US-0996981 (1992-12-21)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 34  인용 특허 : 0
초록

Multi-stage membrane systems are arranged so that, with the same number of modules and compressors, mixing losses upon combining recycle and feed streams are minimized. Membrane surface area and power requirements are reduced thereby.

대표
청구항

An improved membrane process for the production at high or very high purity, of a less selectively permeable component of a feed gas containing said component and a more selectively permeable component, comprising: (a) introducing the feed gas at a feed pressure to a first stage membrane module of a membrane system containing a total of at least three membrane module stages, said system being capable of selectively permeating the more selectively permeable component thereof; (b) separately removing the less selectively permeable component from the first ...

이 특허를 인용한 특허 피인용횟수: 34

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  6. Chernyakov Iosif ; Hsiung Thomas Hsiao-Ling ; Schwarz Alexander ; Yang James Hsu-Kuang. Fluorochemical recovery and recycle using membranes. USP1998035730779.
  7. Phillips Robert John,GBX ; Simons Adrian,GBX ; Kilner John Anthony,GBX ; Lane Jonathan Andrew,GBX. Gas generating system. USP2001116319305.
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  14. Jensvold John A. ; Jeanes Thomas O.. Membrane for separation of xenon from oxygen and nitrogen and method of using same. USP2001016168649.
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  17. Ishihara, Yoshio; Hayashida, Shigeru; Nagasaka, Toru; Kimijima, Tetsuya; Ohmi, Tadahiro. Method and apparatus for collecting rare gas. USP2003086605134.
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  19. Verbockhaven Denis,FRX ; Bonet Claude,FRX ; Sindzingre Thierry,FRX. Method and device for supplying several working gases, and its application to an installation for assembling electronic components. USP2001096293997.
  20. De Wilde Robert Marcel,BEX ; Duro Pascal Yves,FRX. Method and system for inerting polymeric film producing machines. USP2001086270705.
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  23. Wilcox, Jennifer. Nitrogen-permeable membranes and uses thereof. USP2013058440000.
  24. Daniels, Danny. Non-cryogenic nitrogen generators and methods of use. USP2011108034160.
  25. Li Yao-En ; Meimari Magdy,CAX. Process for recovering SF.sub.6 from a gas. USP2000086096114.
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  27. Keskar Nitin Ramesh ; Prasad Ravi. Process for reducing carbon production in solid electrolyte ionic conductor systems. USP1998115837034.
  28. Keskar Nitin Ramesh ; Prasad Ravi ; Gottzmann Christian Friedrich. Process for reducing carbon production in solid electrolyte ionic conductor systems. USP2000086106591.
  29. Gu, Youzong; Xu, Wenqiang. Process for separating CO2 from CO2 containing gas stream. USP20190210201778.
  30. Brazier, Arnaud. Production method using permeation of at least two gaseous fluxes from a gaseous mixture, and a production installation for implementing this method. USP2004076767385.
  31. Yang James Hsu-Kuang ; Chernyakov Iosif ; Hsiung Thomas Hsiao-Ling ; Schwarz Alexander. Recovery of perfluorinated compounds from the exhaust of semiconductor fabs using membrane and adsorption in series. USP1999115976222.
  32. Chernyakov Iosif ; Hsiung Thomas Hsiao-Ling ; Schwarz Alexander ; Yang James Hsu-Kuang. Recovery of perfluorinated compounds from the exhaust of semiconductor fabs with recycle of vacuum pump diluent. USP2000036032484.
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  34. Malsam, Michael G.; Lokhandwala, Kaaeid A.. Three-stage membrane gas separation process. USP2009107604681.