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특허 상세정보

Adsorbent for separating nitrogen from mixed gas of oxygen and nitrogen

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-053/047   
미국특허분류(USC) 095/096; 095/138; 095/903; 096/108; 502/416
출원번호 US-0487595 (2002-08-29)
우선권정보 JP-0260345 (2001-08-29)
국제출원번호 PCT//JP02/08729 (2004-02-24)
§371/§102 date 20040224 (20040224)
국제공개번호 WO03//01818 (2003-03-06)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Nixon &
인용정보 피인용 횟수 : 30  인용 특허 : 15
초록

An adsorbent for separating nitrogen from a mixed gas of oxygen and nitrogen is MSC wherein an oxygen and nitrogen separation ratio α and a ratio (t95/t50) of a time t50 required for adsorbing 50% of the oxygen equilibrium adsorption amount and a time t95 required for adsorbing 95% of the oxygen equilibrium adsorption amount satisfy the inequality(t95/t50)<0.4×(α?24)α?35.The amount of adsorbent used with respect to a predetermined amount of nitrogen generated can be reduced since a method is carried out which uses this adsorbent to produce nitrogen by...

대표
청구항

1. An adsorbent for separating nitrogen from a mixed gas of oxygen and nitrogen, the adsorbent being a MSC, wherein a oxygen and nitrogen separation ratio α (ratio of an oxygen adsorption rate constant K(O2) and nitrogen adsorption rate constant K(N2), K(O2)/K(N2)) is 35 or more, and an adsorption rate characteristic, expressed by a time t95 required for adsorbing 95% of an oxygen equilibrium adsorption amount and a time t50 required for adsorbing 50% of an oxygen equilibrium adsorption amount, satisfies the following inequality:(t95/t50)<0.4×(α?24)α?...

이 특허에 인용된 특허 (15)

  1. Auvil Steven R. (Macungie PA) Schork Joan M. (Allentown PA) Srinivasan Rajagopalan (Allentown PA). Air separation by pressure swing adsorption with a high capacity carbon molecular sieve. USP1993085240474.
  2. Ohsaki Takushi,JPX ; Inui Takashi,JPX ; Yanagita Katsuyoshi,JPX ; Hayashida Masayoshi,JPX ; Tomita Nobuyasu,JPX ; Nakamura Fusao,JPX ; Sawaguchi Satoshi,JPX ; Wakaizumi Akira,JPX ; Miyake Hiroyuki,JP. Carbon adsorbent, manufacturing method therefor, gas separation method and device therefor. USP1999105972834.
  3. Abe Kunio (Bizen JPX). Carbon molecular sieve. USP1993085238888.
  4. Sutt ; Jr. Robert F. (Coraopolis PA). Carbon molecular sieves and a process for their preparation and use. USP1985074528281.
  5. Sutt ; Jr. Robert F. (Johnstown PA). Carbon molecular sieves and a process for their preparation and use. USP1985074526887.
  6. Sutt, Jr., Robert F.. Carbon molecular sieves and a process for their preparation and use. USP1985094540678.
  7. Farris Thomas S. (Bethlehem PA) Coe Charles G. (Macungie PA) Armor John N. (Orefield PA) Schork Joan M. (Allentown PA). High capacity coconut shell char for carbon molecular sieves. USP1992115164355.
  8. Lee Sang K. (Allentown PA) Wang Andrew W. (Alburtis PA) Paul Robert (Nesquohoning PA). High purity nitrogen PSA utilizing controlled internal flows. USP1995085441558.
  9. Munzner Heinrich (Essen DT) Heimbach Heinrich (Bochum DT) Korbacher Werner (Essen DT) Peters Werner (Wattenscheid DT) Juntgen Harald (Essen DT) Knoblauch Karl (Essen DT) Zundorf Dieter (Essen DT) Hor. Impregnation of coke with an organic compound to produce a molecular sieve. USP1976063962129.
  10. Cabrera Alejandro L. (Fogelsville PA) Armor John N. (Orefield PA). Modified carbon molecular sieve adsorbents. USP1991125071450.
  11. Gaffney Thomas R. (Allentown PA) Farris Thomas S. (Bethlehem PA) Cabrera Alejandro L. (Fogelsville PA) Armor John N. (Orefield PA). Modified carbon molecular sieves for gas separation. USP1992035098880.
  12. Marumo Chisato (Neyagawa JPX) Hayata Eiji (Osaka JPX) Shiomi Niro (Osaka JPX). Molecular sieving carbon. USP1990064933314.
  13. Kaneshige Isao (Kurashiki JPX) Genba Tsuneo (Okayama JPX) Tamaru Takeshi (Okayama JPX) Matsuura Tetsuhiko (Bizen JPX). Process for separating nitrogen gas. USP1994095346536.
  14. Gemba Tsuneo (Okayama JPX) Tamaru Takeshi (Okayama JPX) Matsuura Tetsuhiko (Bizen JPX). Process for separating nitrogen gas by pressure swing adsorption system. USP1990054925461.
  15. Armor John N. (Orefield PA) Braymer Thomas A. (Allentown PA) Farris Thomas S. (Bethlehem PA) Gaffney Thomas R. (Allentown PA). Use of helium and argon diluent gases in modification of carbon molecular sieves. USP1992025086033.

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  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.
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  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.
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  14. Tammera, Robert F.; Anderson, Thomas N.. Apparatus and systems having a rotary valve assembly and swing adsorption processes related thereto. USP2016059352269.
  15. Wanni, Amar S.; Nadarajah, Chithranjan; Frederick, Jeffrey W.; Sundaram, Narasimhan. Apparatus and systems having an adsorbent contactor and swing adsorption processes related thereto. USP2015059034078.
  16. Sundaram, Narasimhan. Apparatus and systems having compact configuration multiple swing adsorption beds and methods related thereto. USP2015109162175.
  17. Frederick, Jeffrey W.; Fulton, Jr., John W.; Tammera, Robert F.; Huntington, Richard A.. Integrated adsorber head and valve design and swing adsorption methods related thereto. USP2015069067168.
  18. Sundaram, Narasimhan; Northrop, P. Scott. Kinetic fractionators, and cycling processes for fractionation of gas mixtures. USP2014128921637.
  19. Baksh, Mohamed S. A.; Simo, Marian. Large scale pressure swing adsorption systems having process cycles operating in normal and turndown modes. USP2013078496733.
  20. Deckman, Harry W.; Kamakoti, Preeti; Ravikovitch, Peter I.; Kelley, Bruce T.; Northrop, P. Scott; Rasmussen, Peter C.; Tanaka, Paul L.; Webster, Martin N.; Roth, Wieslaw J.; Corcoran, Jr., Edward W.. Method and apparatus for removal of oil from utility gas stream. USP20180710035096.
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  23. Deckman, Harry W.; Johnson, Robert A.; Tammera, Robert F.; Anderson, Thomas N.. Methods of removing contaminants from a hydrocarbon stream by swing adsorption and related apparatus and systems. USP2015109168485.
  24. Deckman, Harry W.; Johnson, Robert A.; Kelley, Bruce T.; Ravikovitch, Peter I.; Anderson, Thomas N.. Methods of removing contaminants from hydrocarbon stream by swing adsorption and related apparatus and systems. USP2015059034079.
  25. Zhou, Shaojun J.; Yates, Stephen F.. Ozone resistant O/Nseparation membranes. USP2010047699911.
  26. Haberland, Bernhard Lewis; Dolenski, Joseph Thomas; Blair, Jeremy; Griffin, Donald Kenneth; Zeigler, Marvin Norman; Richardson, Gerry Dean. Portable and stationary oxygen concentrator system. USP2013128608827.
  27. Baksh, Mohamed S. A.; Simo, Marian. Six bed pressure swing adsorption process operating in normal and turndown modes. USP2013078491704.
  28. Baksh, Mohamed S. A.; Simo, Marian. Six bed pressure swing adsorption process operating in normal and turndown modes. USP2013108551217.
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