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특허 상세정보

Purification of air

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-053/04    F25J-003/04    B01D-053/047    G01N-033/00   
출원번호 US-0895632 (2013-05-16)
등록번호 US-9108145 (2015-08-18)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Schaal, Eric J.
인용정보 피인용 횟수 : 13  인용 특허 : 19
초록

Process of reducing water, CO2 and N2O in feed air, which: a first adsorbent such as alumina (25-40% volume) and a second adsorbent such as X zeolite (60-75% volume) are used; the online time of the adsorbent is determined by determining the concentration measured by an analyzer for CO2 concentration at a position within the length of the second adsorbent when a maximum level of N2O is simultaneously obtained at the downstream end of the second adsorbent in the feed direction, wherein the online time is the time taken from commencing passing the feed air...

대표
청구항

1. A method for determining conditions for the reduction, prior to cryogenic distillation, of the level of water, carbon dioxide and nitrous oxide in a feed air stream in a process comprising: (a) passing said feed air stream at a feed pressure in a feed direction through a first adsorbent which has a Henry's Law selectivity for carbon dioxide over nitrous oxide measured at 30° C. of at least 12.5, and subsequently through a second adsorbent whose Henry's Law constant for the adsorption of N2O measured at 30° C. is less than 500 mmol/g/atm and whose Henr...

이 특허에 인용된 특허 (19)

  1. Kumar Ravi (Allentown PA) Sircar Shivaji (Wescosville PA) Kratz Wilbur C. (Macungie PA). Adsorptive process for the removal of carbon dioxide from a gas. USP1984094472178.
  2. Kumar Ravi ; Deng Shuguang ; Bulow Martin ; Fitch Frank ; Ojo Adeola Florence ; Gittleman Craig S.. Air purification process. USP1999115980611.
  3. Golden Timothy Christopher (Allentown PA) Taylor Fred William (Allentown PA) Wang Andrew Wilson (Alburtis PA) Kalbassi Mohammed Ali (Surrey GB2). Base treated alumina in pressure swing adsorption. USP1997085656064.
  4. Prichett, Derek Alan; Meikle, Roy Adolph; Golden, Timothy Christopher; Kalbassi, Mohammad Ali; Taylor, Fred William; Raiswell, Christopher James; Mogan, Jon Louis. Co-formed base-treated aluminas for water and COremoval. USP2010077759288.
  5. Schmidt,William Paul; Zwilling,Daniel Patrick; Wright,Andrew David; Kalbassi,Mohammad Ali; Raiswell,Christopher James. Control scheme for hybrid PSA/TSA systems. USP2008087413595.
  6. Lutz, Cecile; Schmitt, Paul-Guillaume. Method of purifying a gas stream contaminated by CO. USP2011057935177.
  7. Jain Ravi (Piscataway NJ). Pre-purification of air for separation. USP1993085232474.
  8. Grenier Maurice (Paris FRX) Gastinne Sophie (Notre Dame de Gravenchon FRX) Petit Pierre (Chatenay Malabry FRX) Venet Francois (Paris FRX). Process and apparatus for purifying air to be distilled by adsorption. USP1992085137548.
  9. Golden, Timothy Christopher; Taylor, Fred William; Salter, Elizabeth Helen; Kalbassi, Mohammad Ali; Raiswell, Christopher James. Process for nitrous oxide removal. USP2004046719827.
  10. Kalbassi, Mohammad Ali; Malik, Nasim Hassan. Process for treating a feed gas. USP2003076599347.
  11. Saxena, Himanshu; Ackley, Mark William; Billingham, John Fredric; Barrett, Philip Alexander. Production of high purity and ultra-high purity gas. USP2009047524358.
  12. Golden Timothy Christopher ; Taylor Fred William ; Johnson Leighta Maureen ; Malik Nasim Hassan,GBX ; Raiswell Christopher James,GBX. Purification of air. USP2000086106593.
  13. Golden, Christopher Timothy; Kalbassi, Mohammad Ali; Raiswell, Christopher James; Waweru, Christine; Pollock, Michaela. Purification of air. USP2014058734571.
  14. Kalbassi Mohammad Ali,GB2 ; Golden Timothy Christopher. Purification of gases using solid adsorbents. USP1999015855650.
  15. Kalbassi Mohammed A. (Surrey GB2) Golden Timothy C. (Allentown PA). Purification of gases using solid adsorbents. USP1997035614000.
  16. Bosquain, Maurice; Grenier, Maurice; Hay, Leon; Lapeyre, Paul; Lehman, Jean-Yves; Petit, Pierre; Sauty, Pierre. Reactor and apparatus for purifying by adsorption. USP1985094541851.
  17. Sircar Shivaji (Allentown PA) Kratz Wilbur C. (Macungie PA). Removal of water and carbon dioxide from air. USP1981024249915.
  18. Kumar Ravi (Allentown PA). Removal of water and carbon dioxide from atmospheric air. USP1987124711645.
  19. Kalbassi Mohammed Ali,GB2 ; Allam Rodney John,GB2 ; Golden Timothy Christopher. Temperature swing adsorption. USP1998125846295.

이 특허를 인용한 특허 피인용횟수: 13

  1. Owens, Tracie L.; Leta, Daniel P.. Adsorbent-incorporated polymer fibers in packed bed and fabric contactors, and methods and devices using same. USP2017079713787.
  2. Fowler, Tracy A.; Huntington, Richard A.; Fulton, John W.. Apparatus and system for swing adsorption processes related thereto. USP20190310220346.
  3. Fowler, Tracy A.; Ramkumar, Shwetha; Frederick, Jeffrey W.; Nagavarapu, Ananda K.; Chialvo, Sebastian; Tammera, Robert F.; Fulton, John W.. Apparatus and system for swing adsorption processes related thereto. USP20180810040022.
  4. Johnson, Robert A.; Deckman, Harry W.; Kelley, Bruce T.; Oelfke, Russell H.; Ramkumar, Shwetha. Apparatus and system for swing adsorption processes related thereto. USP20180910080991.
  5. McMahon, Patrick D. J.; Johnson, Robert A.; Ramkumar, Shwetha; Oelfke, Russell H.; Thomas, Eugene R.; Nagavarapu, Ananda K.; Barnes, William. Apparatus and system for swing adsorption processes related thereto. USP20181110124286.
  6. Nagavarapu, Ananda K.; Marshall, Bennett D.. Apparatus and system for swing adsorption processes related thereto. USP20190310220345.
  7. Nagavarapu, Ananda K.; Smith, Ransdall K.; Oelfke, Russell H.. Apparatus and system for swing adsorption processes related thereto. USP20180910080992.
  8. Tammera, Robert F.. Apparatus and system for swing adsorption processes related thereto. USP2017099751041.
  9. Tammera, Robert F.; Frederick, Jeffrey W.. Apparatus and system for swing adsorption processes related thereto. USP2018019861929.
  10. Ramkumar, Shwetha; Johnson, Robert A.; Mon, Eduardo; Fulton, John W.. Apparatus and system having a valve assembly and swing adsorption processes related thereto. USP2017069675925.
  11. Kalbassi, Mohammad Ali; O'Meara, April Emma Louise; Raiswell, Christopher James; Zone, Ian Robert. Heater arrangement for TEPSA system. USP2017109795915.
  12. Rodgers, Matthew L.; Kern, Brandon J.; Matteucci, Scott T.; Goltz, H. Robert; Gisch, Daryl J.. Separation of hydrocarbons using regenerable macroporous alkylene-bridged adsorbent. USP2018039908079.
  13. Brody, John F.; Leta, Daniel P.; Fowler, Tracy Alan; Freeman, Stephanie A.; Cutler, Joshua I.. Structured adsorbent beds, methods of producing the same and uses thereof. USP2017089744521.