发明名称 |
Processes to condition gas permeable membranes |
摘要 |
Glassy-type gas separating membranes are conditioned to a state of enhanced permeability through controlled sorption of a selected conditioning gas such as CO2. Membranes are swelled to a state of plasticity without being rubberized and maintained in this state to allow their permeabilities to settle to a new, higher steady-state value. Upon depressurization, conditioned membranes exhibit enhanced permeability over untreated membranes, without serious loss of permselectivity. Membranes so conditioned must be maintained with a minimum sorption level of a conditioning or maintaining gas pending use to retain their improved characteristics.
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申请公布号 |
US4755192(A) |
申请公布日期 |
1988.07.05 |
申请号 |
US19870038392 |
申请日期 |
1987.04.15 |
申请人 |
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM |
发明人 |
KOROS, WILLIAM J.;JORDAN, SUSAN M.;FLEMING, GREG K. |
分类号 |
B01D67/00;(IPC1-7):B01D53/22 |
主分类号 |
B01D67/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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