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특허 상세정보

Process to remove nitrogen and/or carbon dioxide from methane-containing streams

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-053/047    B01D-053/22   
미국특허분류(USC) 095/050; 095/051; 095/096; 095/130; 095/139
출원번호 US-0004304 (2004-12-03)
등록번호 US-7314503 (2008-01-01)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 41  인용 특허 : 18
초록

A process for the removal of inert gases, such as nitrogen and carbon dioxide, from methane-containing gases, such as natural gas, including a first stage removal which lowers the total combined inert content to about less than 30% and a second stage removal utilizing a pressure swing adsorption process comprising one or more adsorbent beds comprising contracted titanosilicate-1 adsorbent, wherein the purified methane-containing gas contains less than about 6% total combined inerts.

대표
청구항

What is claimed is: 1. A process to purify a natural gas stream comprising between about 25% and 60% total inerts, the process comprising the steps of: (a) treating the natural gas stream with a first stage process comprising one or more processes of the group of selective membrane filtration, cryogenic distillation and amine scrubbing to produce a semi-purified natural gas stream comprising less than or equal to about 30% total combined inerts; and (b) treating the semi-purified natural gas stream with a second stage process in a pressure swing adsorpt...

이 특허에 인용된 특허 (18)

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  2. McNeil Brian A. (Chessington GBX) Evans Michael H. (Antwerpen BEX). Dual column process to remove nitrogen from natural gas. USP1997045617741.
  3. Baker Richard W. ; Lokhandwala Kaaeid A. ; Pinnau Ingo. Ethylene/nitrogen separation process. USP1999035879431.
  4. Dolan, William Bachop; Mitariten, Michael J.. Heavy hydrocarbon recovery from pressure swing adsorption unit tail gas. USP2003086610124.
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  7. Wegeng, Robert S.; Rassat, Scot D.; Stenkamp, Victoria S.; TeGrotenhuis, Ward E.; Matson, Dean W.; Drost, M. Kevin; Viswanathan, Vilayanur V.. Method for thermal swing adsorption and thermally-enhanced pressure swing adsorption. USP2003106630012.
  8. Hahn, Paul R.. Natural gas liquefaction with improved nitrogen removal. USP2003106631626.
  9. Baker, Richard W.; Wijmans, Johannes G.; He, Zhenjie; Pinnau, Ingo. Natural gas separation using nitrogen-selective membranes. USP2003056565626.
  10. Wijmans, Johannes Gerard; Baker, Richard W.; He, Zhenjie; Pinnau, Ingo. Natural gas separation using nitrogen-selective membranes of modest selectivity. USP2003066572678.
  11. Doshi Kishore J. (Somers NY) Dolan William B. (Dobbs Ferry NY). Process for the rejection of CO2 from natural gas. USP1995055411721.
  12. Liberato Ciccarelli IT. Process for the removal of nitrogen contained in natural gas. USP2002096447578.
  13. Rhoades George D. (LaGrange IL) Golueke Robert J. (Naperville IL). Process to increase natural gas methane content. USP1995025390499.
  14. Nataraj Shankar ; Moore Robert Byron ; Russek Steven Lee. Production of synthesis gas by mixed conducting membranes. USP2000046048472.
  15. Kaaeid A. Lokhandwala ; Richard W. Baker. Refinery process including membrane separation. USP2002026350371.
  16. Reinhold ; III Herbert Edward ; Knaebel Kent S. ; Huber Mark ; King David R.. Separation of gases by pressure swing adsorption. USP1998085792239.
  17. Kuznicki Steven M. ; Bell Valerie A. ; Petrovic Ivan ; Desai Bipin T.. Small-pored crystalline titanium molecular sieve zeolites and their use in gas separation processes. USP2000056068682.
  18. Richard W. Baker ; Kaaeid A. Lokhandwala ; Johannes G. Wijmans ; Andre R. Da Costa. Two-step process for nitrogen removal from natural gas. USP2002076425267.

이 특허를 인용한 특허 피인용횟수: 41

  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.
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  11. Tammera, Robert F.. Apparatus and systems having a reciprocating valve head assembly and swing adsorption processes related thereto. USP2017039593778.
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  13. Sundaram, Narasimhan; Huntington, Richard A.. Apparatus and systems having a rotary valve assembly and swing adsorption processes related thereto. USP2015099120049.
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