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Nitrogen-selective zeolitic adsorbent for use in air separation process 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01D-053/047
출원번호 US-0704051 (1996-08-28)
발명자 / 주소
  • Chao Chien C. (Millwood NY)
출원인 / 주소
  • UOP (Des Plaines IL 02)
인용정보 피인용 횟수 : 11  인용 특허 : 14

초록

In using calcium-exchanged forms of zeolite X as selective adsorbents for nitrogen in PSA air separation process, it has been discovered that, particularly under certain temperature and pressure conditions, superior performance is not, as is generally believed, obtained when the calcium content is a

대표청구항

An adsorbent for use in a cyclic pressure swing adsorption process for the separation of nitrogen from a mixture thereof with oxygen by selective adsorption of nitrogen, which comprises a zeolite X having a framework SiO2/Al2O3 molar ratio of from 2.0 to 2.4 and containing from 60 to 89 equivalent p

이 특허에 인용된 특허 (14)

  1. Gaffney Thomas R. (Allentown PA) Kirner John F. (Orefield PA) Kumar Ravi (Allentown PA) Maliszewskyj Robin J. (Hatfield PA), Adsorptive separation using diluted adsorptive phase.
  2. Chao Chien-Chung (Millwood NY), Air separation process.
  3. Sircar, Shivaji; Conrad, Roger R.; Ambs, William J., Binary ion exchanged type X zeolite adsorbent.
  4. Mullhaupt Joseph T. (Williamsville NY) Stephenson Paula C. (East Amherst NY), Enhanced gas separations and zeolite compositions therefor.
  5. Fischer John C. (Marietta GA) Thomas Tudor L. (Roswell GA), Langmuir moderate type 1 desiccant mixture for air treatment.
  6. Chao Chien C. (Millwood NY) Sherman John D. (Chappaqua NY) Mullhaupt Joseph T. (Williamsville NY) Bolinger Cornelius M. (Sugarland TX), Mixed ion-exchanged zeolites and processes for the use thereof in gas separations.
  7. Reiss Gerhard (Leverkusen DEX), Molecular sieve zeolite for producing hydrogen by pressure variation adsorption technique.
  8. Gaffney Thomas R. (Allentown PA) Kirner John F. (Orefield PA) Kumar Ravi (Allentown PA) Maliszewskyj Robin J. (Hatfield PA) Schmidt William P. (Allentown PA), O2 VSA process with low O2 capacity adsorbents.
  9. Coe Charles G. (Macungie PA) Kuznicki Steven M. (Allentown PA), Polyvalent ion exchanged adsorbent for air separation.
  10. Chao Chien C. (Millwood NY), Process for separating nitrogen from mixtures thereof with less polar substances.
  11. Reiss Gerhard (Leverkusen DEX), Process for the adsorptive oxygen-enrichment of air with mixtures of Ca zeolite A molecular sieves by means of vacuum sw.
  12. Coe Charles G. (Macungie PA) Gaffney Thomas R. (Allentown PA), Process for the purification of bulk gases using chabazite adsorbents.
  13. Ojo Adeola F. (Chatham NJ) Fitch Frank R. (Bedminster NY) Blow Martin (Basking Ridge NJ), Removal of carbon dioxide from gas streams.
  14. Chao Chien-Chung (Millwood NY), Selective adsorption on magnesium-containing clinoptilolites.

이 특허를 인용한 특허 (11)

  1. Belanger, Paul W.; Baksh, Mohamed Safdar Allie; Chandra, Preeti; Rosinski, Andrew C., Adsorption control method and controller.
  2. Moreau,Serge; Renou,Elise; Szulman,Claire, Barium-and calcium-based zeolitic adsorbent for gas purification in particular air.
  3. Baksh,Mohamed Safdar Allie; Rosinski,Andrew C., Continuous feed three-bed pressure swing adsorption system.
  4. Allie, Mohamed Safdar, Methods and systems for helium recovery.
  5. Baksh, Mohamed Safdar Allie, Methods and systems for helium recovery.
  6. Labasque Jacques,FRX ; Lledos Bernard,FRX, PSA process using an adsorbent of intrinsic strength favorable to the adsorption kinetics.
  7. Baksh, Mohamed Safdar Allie; Terbot, Charles Edward, Pressure swing adsorption process for the production of hydrogen.
  8. Baksh, Mohamed Safdar Allie; Ackley, Mark William; Notaro, Frank, Process and adsorbent for hydrogen purification.
  9. Jasra, Raksh Vir; Chudasama, Chintansinh Dharmendrasinh; Sebastian, Jince, Process for the preparation of a molecular sieve adsorbent for the size/shape selective separation of air.
  10. Sebastian, Jince; Jasra, Raksh Vir, Process for the preparation of molecular sieve adsorbent for selective adsorption of nitrogen and argon.
  11. Jasra,Raksh Vir; Chudasama,Chintansinh Dharmendrasinh, Process for the preparation of molecular sieve adsorbent for selective adsorption of oxygen from air.

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