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Process for recovering helium from a gas stream 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F25J-003/00
출원번호 US-0881250 (1992-05-11)
발명자 / 주소
  • Mehra Yuv R. (The Woodlands TX)
출원인 / 주소
  • Advanced Extraction Technologies, Inc. (Houston TX 02)
인용정보 피인용 횟수 : 52  인용 특허 : 0

초록 ▼

A subquality nitrogen-rich natural gas stream containing more than 0.1 mol % helium is countercurrently extracted with a lean physical solvent to produce a rich solvent bottoms stream which is flashed twice to produce a methane-rich gas product and a nitrogen-helium product which is fed to at least

대표청구항 ▼

In a process for separating C1+hydrocarbons and nitrogen from a nitrogen-rich gas stream containing at least 3 mol % of said nitrogen and at least 0.1 mol % helium, comprising the following steps: A. contacting said nitrogen-rich gas stream with a lean oil selected from the group consisting of paraf

이 특허를 인용한 특허 (52)

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  7. 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.
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  8. Nagavarapu, Ananda K.; Marshall, Bennett D., Apparatus and system for swing adsorption processes related thereto.
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  9. Nagavarapu, Ananda K.; Smith, Ransdall K.; Oelfke, Russell H., Apparatus and system for swing adsorption processes related thereto.
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  10. Tammera, Robert F., Apparatus and system for swing adsorption processes related thereto.
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  11. Tammera, Robert F.; Frederick, Jeffrey W., Apparatus and system for swing adsorption processes related thereto.
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  17. Wanni, Amar S.; Nadarajah, Chithranjan; Frederick, Jeffrey W.; Sundaram, Narasimhan, Apparatus and systems having an adsorbent contactor and swing adsorption processes related thereto.
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  21. Lokhandwala Kaaeid A., Chlorine separation process combining condensation, membrane separation and flash evaporation.
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  22. Voss, Christian; Tota, Akos; Bauer, Martin; Jennewein, Frank, Combined membrane-pressure swing adsorption method for recovery of helium.
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  23. Baksh,Mohamed Safdar Allie; Jaynes,Scot Eric; Neu,Bernard Thomas; Smolarek,James; Emley,Mark Thomas, Control system for helium recovery.
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  24. Stoner Glenn (Calhan CO) Reingold ; III Herbert E. (Annapolis MD) D\Amico Joseph S. (Linthicum MD) Knaebel Kent S. (Plain City OH), Enhanced helium recovery.
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  26. 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.
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  27. Schwartz, Joseph M.; Koita, Khushnuma; Shah, Minish M., Integrated process and apparatus for recovery of helium rich streams.
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