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특허 상세정보

Process for the purification of a gas by adsorption

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-053/053   
미국특허분류(USC) 950/98 ; 905/023 ; 905/105
출원번호 US-0482890 (2000-01-14)
우선권정보 FR0001035 (1999-01-29)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Young & Thompson
인용정보 피인용 횟수 : 17  인용 특허 : 15
초록

A pressure swing adsorption cycle in which a regeneration phase is terminated by at least one final step in which a residual gas is withdrawn counter-current to the adsorber (1 to 3). A variable portion of the residual gas is recycled, representing from 0 to 30% of the flow of the purified gas product, into the impure gas to be treated, the rest of this residual gas constituting a purge. The duration of the cycle is reduced when this recycling is carried out, the more so as the recycle flow rate is the greater. The cycle has particular application in the...

대표
청구항

[ What is claimed is:] [1.]1. Process for the purification of a gas containing preferentially adsorbable impurities by pressure swing adsorption (PSA) using several adsorbers with, for each adsorber, a cycle comprising the following operative phases, which are offset from one adsorber to another by one nth of the duration (T) of the cycle, in which n designates the number of adsorbers:substantially isobaric adsorption at a high pressure of the cycle, this adsorption phase comprising the admission of impure gas to be treated into the adsorber through a fi...

이 특허에 인용된 특허 (15)

  1. Leitgeb Paul (Munich DEX). Adsorption process producing varying amounts of product gas of a constant purity. USP1982044323370.
  2. Kumar Ravi (Allentown PA). Adsorptive process for producing two gas streams from a gas mixture. USP1990044915711.
  3. Kumar Ravi (Allentown PA). Depressurization effluent repressurized adsorption process. USP1993095248322.
  4. D\Amico Joseph S. (Linthicum MD) Reinhold ; III Herbert E. (Annapolis MD) Knaebel Kent S. (Plain City OH). Helium recovery. USP1996085542966.
  5. Pivard Claude (Paris FR). Methods of treating a gaseous mixture of adsorption. USP1979074160651.
  6. Reinhold ; III Herbert E. (Annapolis MD) D\Amico Joseph S. (Linthicum MD) Knaebel Kent S. (Plain City OH). Natural gas enrichment process. USP1996075536300.
  7. Tan Ziming (Basking Ridge NJ). PSA process with dynamic purge control. USP1996065529607.
  8. Stcker Jrg (St. Stevens-Woluwe BEX) Whysall Michael (Wilrijk BEX). Pressure swing adsorption control method and apparatus. USP1988084761165.
  9. Miller Geoffrey Q. (Spring Valley NY) Gray ; Jr. Robert L. (Mahopac NY). Pressure swing adsorption product purity control method and apparatus. USP1987094693730.
  10. Kapoor Akhilesh (Clark NJ) Krishnamurthy Ramachandran (Piscataway NJ) Nguyen Hung H. (Hurstville AUX). Pressure swing adsorption with countercurrent feed pressurization. USP1993085232473.
  11. Engler Yves,FRX ; Monereau Christian,FRX. Process and installation for the separation of a gas mixture by adsorption. USP1999105964924.
  12. Yamano Matsuki (Hyogo JPX) Aono Tadayoshi (Hyogo JPX) Kurimoto Makoto (Ehime JPX) Uno Masaru (Hyogo JPX). Process for separation of high purity gas from mixed gas. USP1988104775394.
  13. Gauthier Pierre (Fresnes FRX) Monereau Christian (Paris FRX). Process for the purification of a gas by adsorption. USP1993105254154.
  14. Sircar Shivaji (Wescosville PA). Production of mixed gases of controlled composition by pressure swing adsorption. USP1987114705541.
  15. Kumar Ravi (Allentown PA). Purge effluent repressurized adsorption process. USP1994105354346.

이 특허를 인용한 특허 피인용횟수: 17

  1. Baksh,Mohamed Safdar Allie; Rosinski,Andrew C.. Continuous feed three-bed pressure swing adsorption system. USP2007027179324.
  2. Monereau, Christian; Darde, Arthur; Berthelemot, Anne. Dust-laden wet gas treatment. USP2013038388734.
  3. Lomax, Franklin D.; Lettow, John S.; Streeks, Michael Sean; Prasad, Vinay. Flow control in pressure swing adsorption systems. USP2005056887301.
  4. Baksh, Mohamed S. A.; Simo, Marian. Large scale pressure swing adsorption systems having process cycles operating in normal and turndown modes. USP2013078496733.
  5. Scholten, Anton; Westendorp, Gerard. Method and device for separating a gas mixture by means of pressure swing adsorption. USP2017059656202.
  6. Monereau,Christian. Method for controlling a unit for the treatment by pressure swing adsorption of at least one feed gas. USP2006047025801.
  7. Monereau, Christian. Method for treating a gas mixture by adsorption. USP2005066911066.
  8. Monereau,Christian; De Souza,Guillaume. Method for treating at least one feed gas mixture by pressure swing adsorption. USP2007087255727.
  9. De-Souza, Guillaume; Dolle, Pierre-Olivier; Engler, Yves. Method of controlling a plant for processing a gas by adsorption and corresponding processing plant. USP2004056733568.
  10. Conway, Timothy Edward; Gershtein, Vladimir Yliy; Hopkins, Jeffrey Alan; Lindenmuth, Brian M.; Booth, Thomas M.. Onsite ultra high purity chemicals or gas purification. USP2015129216364.
  11. Whitley, Roger Dean. Pressure swing adsorption process with improved recovery of high-purity product. USP2010017651549.
  12. Monereau, Christian; Fuentes, François; Merino, Philippe. Process for separating gas in a PSA unit with two compressors. USP2010017648562.
  13. Whitley, Roger Dean; Weist, Jr., Edward Landis; Weist, Annemarie Ott; Auvil, Steven Ray. Removal of gaseous contaminants from argon. USP2011017862645.
  14. Monereau, Christian; Haik-Beraud, Natacha; Gueret, Vincent; Berthelemot, Anne. Repressurization of a VSA treating a gas mixture comprising a fuel. USP2012078226744.
  15. Baksh, Mohamed S. A.; Simo, Marian. Six bed pressure swing adsorption process operating in normal and turndown modes. USP2013078491704.
  16. Baksh, Mohamed S. A.; Simo, Marian. Six bed pressure swing adsorption process operating in normal and turndown modes. USP2013108551217.
  17. Baksh, Mohamed S. A.; Simo, Marian. Ten bed pressure swing adsorption process operating in normal and turndown modes. USP2013058435328.