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특허 상세정보

Membrane system for intermittent gas separation

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-053/22   
미국특허분류(USC) 55/16 ; 55/21 ; 55/69
출원번호 US-0394954 (1982-07-02)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 30  인용 특허 : 2
초록

An improved process for separating gases using a hollow fiber membrane on an intermittent basis is described. It has been found that if the pressure on the feed side of the membrane is maintained essentially constant or is allowed to vary slowly during operation and in the periods between operating cycles the useful lifetime of the separation device is greatly extended. This process is particularly useful for the separation of air into oxygen- and nitrogen-enriched streams using hollow fibers melt spun from poly(4-methylpentene-1).

대표
청구항

In a process for separating gases from a mixture using a device containing a hollow fiber membrane preferentially permeable to at least one component of the gas mixture wherein the separation process is intermittent and the device is to be used in at least 1000 operating cycles separated by periods of non-use, the improvement wherein the pressure on the feed stream side of the membrane is maintained essentially constant or is varied relatively slowly during cycling between periods of non-use and initiation of gas separation such that after 1000 cycles of...

이 특허를 인용한 특허 피인용횟수: 30

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  3. Hermann Kerstan G.. Dehumidifier for supplying air using variable flow rate and variable pressure in a membrane dryer. USP1999035885329.
  4. Hermann Kerstan G.. Dehumidifier for supplying air using variable flow rate and variable pressure in a membrane dryer. USP1998065762690.
  5. Keyser Lloyd A. (Dallas TX) Nelson Donald A. (Allen TX) Thornton David C. (Grapevine TX). Dehumidifier for waveguide system. USP1990074944776.
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  8. Anazawa Takanori (Urawa JPX) Ono Yoshiyuki (Okegawa JPX). Heterogeneous membrane and process for production thereof. USP1987054664681.
  9. Krueger Robert T. (Concord CA) Schletz Jeffrey C. (Clayton CA) McReynolds Kent B. (Midland MI). Hollow fiber membrane device with inner wrap. USP1987054666469.
  10. Delp, II, William H.; Barbosa, Rui M.. Hyperbaric chamber system and related methods. USP2017039592171.
  11. Erich Kessler DE; Thomas Batzilla DE; Friedbert Wechs DE; Frank Wiese DE. Integrally asymmetrical polyolefin membrane. USP2002126497752.
  12. Doshi Kishore J. (Somers NY) Werner Robert G. (Danbury CT) Mitariten Michael J. (Peekskill NY). Integrated membrane/PSA process and system. USP1989094863492.
  13. Barnhard Jeffrey Charles ; Meredith Brian Michael ; Zander Edward Holmes. Membrane control system and process. USP1999115989312.
  14. Peters, Richard D.; Mahley, III, George E.; Morisato, Atsushi; Karim, Fatimah Binti A.; Hassan, Hatarmizi Bin; Ali, Zalina Binti; Zakaria, Wan Atikahsari Wan; Isa, Faudzi Mat; Fadzillah, Faizal Bin Mohamad. Membrane filter element with multiple fiber types. USP2017049630141.
  15. DiMartino ; Sr. Stephen P. (Topton PA) Hopkins Jeffrey A. (Whitehall PA) Davis Ruth A. (Allentown PA). Membrane unit turn-down control system. USP1989084857082.
  16. Yamashita Naohiko,JPX ; Yamamoto Takao,JPX. Method and apparatus for recovering a gas from a gas mixture. USP2001036197090.
  17. Delp ; II William H.. Method and apparatus for supplying a pressurized diver's breathing gas for underwater divers. USP1999025865877.
  18. Booth ; III Ronald Earl. Method for capturing nitrogen from air using gas separation membrane. USP1998035730780.
  19. Sengupta, Amitava; Huntsberger, Daniel S.; Miller, Brian D.. Method for debubbling an ink. USP2003056558450.
  20. Takemura Tohru (Ohtake JPX) Itoh Hajime (Hiroshima JPX) Kamo Jun (Ohtake JPX) Yoshida Haruhiko (Yamaguchi JPX). Method of making multilayer composite hollow fibers. USP1989024802942.
  21. Delp ; II William H.. Oxygen enriched air generation system. USP1999015858064.
  22. Delp ; II William H. (Lake Worth FL). Oxygen enriched air generation system. USP1997035611845.
  23. Roks,Martinus Franciscus Maria. Pneumatically operated automatic shutoff circuit for controlling the generation of gas. USP2008067387659.
  24. Zampini Anthony (St. Louis MO) Malon Raymond F. (Edmundson MO). Polyphenylene oxide membrane having chemically bonded coating. USP1987034652283.
  25. Kelly Ralph M. (Houston TX). Process for separating CO2 from other gases. USP1987044659343.
  26. Itoh Hiroyuki (Kawasaki JPX) Sakata Ko (Kawasaki JPX) Imai Hirosuke (Yokohama JPX). Selective gas separation membrane. USP1987014636229.
  27. Taylor John A. (Pinckney MI). Separation of water from hydrocarbons and halogenated hydrocarbons. USP1989084857081.
  28. Huf Hans Joachim,DEX. System for supplying air to aircraft pressurized cabins. USP2000076093238.
  29. Aylsworth Alonzo C. ; Graham Charles ; Miller Gregory R.. Therapeutic gas flow meter and monitor. USP1999065911219.
  30. Campbell Michael J. (Clarence Center NY). Turndown control method for membrane separation systems. USP1989024806132.