发明名称 |
PROCESSES FOR THE ISOMERIZATION OF NORMAL BUTANE TO ISOBUTANE |
摘要 |
In a normal butane isomerization process where the isomerization effluent (108, 114) is fractionated in a deisobutanizer (116) operated such that a lower boiling fraction (118) is provided containing at least 80 mass-% isobutane and a higher boiling fraction (122) containing normal butane and at least 10 mass-% isobutane. The higher boiling fraction (122) is contacted with a selectively permeable membrane (124) to provide a permeate (126) containing normal butane-containing and a retentate (128) containing at least 80 mass-% isobutane. The preferred membranes are sieving membranes having a C4 Permeate Flow Index of at least 0.01 and a C4 Permeate Flow Ratio of at least 1.25:1. |
申请公布号 |
CA2601219(C) |
申请公布日期 |
2011.10.25 |
申请号 |
CA20062601219 |
申请日期 |
2006.03.10 |
申请人 |
UOP LLC |
发明人 |
SHECTERLE, DAVID JAMES;SHIELDS, DALE JAMES |
分类号 |
C07C5/27;B01J8/00;C07C7/13 |
主分类号 |
C07C5/27 |
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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