发明授权
- 专利标题: Acid gas scrubbing by composite solvent-swollen membranes
- 专利标题(中): 复合溶剂溶胀膜对酸性气体洗涤
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申请号: US947996申请日: 1986-12-30
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公开(公告)号: US4737166A公开(公告)日: 1988-04-12
- 发明人: Stephen L. Matson , Eric K. L. Lee , Dwayne T. Friesen , Donald J. Kelly
- 申请人: Stephen L. Matson , Eric K. L. Lee , Dwayne T. Friesen , Donald J. Kelly
- 申请人地址: OR Bend
- 专利权人: Bend Research, Inc.
- 当前专利权人: Bend Research, Inc.
- 当前专利权人地址: OR Bend
- 主分类号: B01D53/22
- IPC分类号: B01D53/22 ; B01D61/38 ; B01D67/00 ; B01D69/10 ; B01D69/12
摘要:
A composite immobilized liquid membrane suitable for acid gas scrubbing is disclosed. The membrane is a solvent-swollen polymer and a microporous polymeric support, the solvent being selected from a class of highly polar solvents containing at least one atom selected from nitrogen, oxygen, phosphorous and sulfur, and having a boiling point of at least 100.degree. C. and a solubility parameter of from about 7.5 to about 13.5 (cal/cm.sup.3 -atm).sup.1/2. Such solvents are homogeneously distributed through the solvent-swollen polymer from 20% to 95% by weight. Also disclosed are methods of acid gas scrubbing of high- and low-Btu gas effluents with such solvent-swollen membranes.