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특허 상세정보

Gas separation by composite solvent-swollen membranes

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-053/22   
미국특허분류(USC) 55/16 ; 55/68 ; 55/73 ; 55/158
출원번호 US-0178452 (1988-04-07)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 14  인용 특허 : 16
초록

There is disclosed a composite immobulized liquid membrane of a solvent-swollen polymer and a microporous organic or inorganic support, the solvent being at least one highly polar solvent containing at least one nitrogen, oxygen, phosphorous or sulfur atom, and having a boiling point of at least 100°C. and a specified solubility parameter. The solvent or solvent mixture is homogeneously distributed through the solvent-swollen polymer from 20% to 95% by weight. The membrane is suitable for acid gas scrubbing and oxygen/nitrogen separation.

대표
청구항

A composite immobilized liquid membrane characterized in that it comprises: (a) a microporous support; and (b) a solvent-swollen polymer compatible with and swellable by at least one solvent selected from a class of solvents comprising those solvents with a highly polar group in the molecular structure of the solvent, said highly polar group containing at least one atom selected from nitrogen, oxygen, phosphorous and sulfur, said solvents having a boiling point of at least 100°C. and a solubility parameter of from about 7.5 to about 13.5 (cal/cm3-atm)½.

이 특허에 인용된 특허 (16)

  1. Matson Stephen L. (Harvard MA) Lee Eric K. L. (Acton MA) Friesen Dwayne T. (Bend OR) Kelly Donald J. (Bend OR). Acid gas scrubbing by composite solvent-swollen membranes. USP1988044737166.
  2. Matson ; Stephen L.. Apparatus for maintaining the separation efficiency of immobilized liquid membranes in gas separation. USP1978104119408.
  3. Matson Stephen L. (Bend OR). Energy-efficient process for the stripping of gases from liquids. USP1984044444571.
  4. Steigelmann Edward F. (Naperville IL) Sokol Charles S. (Cincinnati OH). Fluid separation process and membrane. USP1977044015955.
  5. Cramm Joan A. (Mount Prospect IL). Increased strength polymer-blended membranes. USP1986094609468.
  6. Matson Stephen L. (Schenectady NY). Maintaining the separation efficiency of immobilized liquid membranes in gas separation methods and apparatus. USP1979114174374.
  7. Roman, Ian C.; Baker, Richard W.. Method and apparatus for producing oxygen and nitrogen and membrane therefor. USP1985094542010.
  8. Pez Guido P. (Allentown PA) Carlin Richard T. (Macungie PA). Method for gas separation. USP1986104617029.
  9. Walmet Gunnar E. (Schenectady NY) Matson Stephen L. (Schenectady NY). Packaged membrane system and replenishment method. USP1980024187086.
  10. Brun Jean-Pierre (Orsay FR) Bulvestre Gerard (Mandres-les-Roses FR) Guillou Michel (Creteil FR) Thirion Pierre (Bougival FR) Pautrat Rene (Le Mans FR). Process for separating hydrocarbons. USP1976013930990.
  11. Kulprathipanja Santi (Hoffman Estates IL) Neuzil Richard W. (Downers Grove IL) Li Norman N. (Arlington Heights IL). Separation of fluids by means of mixed matrix membranes. USP1988044740219.
  12. Ward ; III ; William J.. Separation of hydrogen sulfide from gas mixture including carbon dioxide. USP1978094115514.
  13. Kulprathipanja Santi (Hoffman Estates IL). Separation of polar gases from nonpolar gases. USP1986084606740.
  14. Kulprathipanja Santi (Hoffman Estates IL) Kulkarni Sudhir S. (Hoffman Estates IL). Separation of polar gases from nonpolar gases. USP1986084608060.
  15. Deetz David W. (Apple Valley MN) Kreevoy Maurice M. (Minneapolis MN). Stabilized liquid films. USP1987124710205.
  16. Ward ; III William J. (Schenectady NY). System for selective removal of hydrogen sulfide from a mixture of gases. USP1979044147754.

이 특허를 인용한 특허 피인용횟수: 14

  1. Baker Richard W. (Palo Alto CA) Lokhandwala Kaaeid A. (Menlo Park CA). Acid gas fractionation process for fossil fuel gasifiers. USP1996095556449.
  2. Mashiko, Hiroaki; Nishii, Hiroyuki. Air-permeable filter for ink cartridge and ink cartridge comprising same. USP2004046723147.
  3. Clarke, Michael John; Hallas, Ian. Apparatus and process for carbon dioxide absorption. USP2009127625427.
  4. Huizing, Ryan Nicholas; Chen, Hao; Wong, Frankie Kin Bong. Blended membranes for water vapor transport and methods for preparing same. USP20181110139116.
  5. Kalthod, Dilip Gurudath. Composite membranes. USP2004026688477.
  6. Ho Sa V. (St. Louis MO). Extracting organic compounds from aqueous solutions. USP1996045512180.
  7. Baker, Richard W.; Wijmans, Johannes G.; Merkel, Timothy C.. Gas separation processes using membrane with permeate sweep to recover reaction feedstocks. USP2012028114192.
  8. Cash, Edwin A.; Bradley, Thomas J.. Gas treating method and apparatus. USP2010067740691.
  9. Cash, Edwin W.; Bradley, Thomas J.. Gas treating method and apparatus. USP2012038137445.
  10. Cash, Edwin W.; Bradley, Thomas J.. Gas treating method and apparatus. USP2014118894758.
  11. Liu, Chunqing; Wilson, Stephen T.; Lesch, David A.. High plasticization-resistant cross-linked polymeric membranes for separations. USP2014088816003.
  12. Cash, Edwin W.; Bradley, Thomas J.. Method for treating contaminated gas. USP2013038388739.
  13. Admassu Wudneh (Concord CA) Clark Daniel O. (Benicia CA). Polycarbonate gas separation membranes containing substituted benzenes and processes for making and using the same. USP1990094959082.
  14. Degen Peter John ; Sipsas Ioannis P. ; Rapisarda Gregory C. ; Gregg Joseph. Polyvinylidene fluoride membrane and method for removing viruses from solutions. USP1998045736051.