发明名称 |
PROCESSES FOR THE ISOMERIZATION OF NORMAL BUTANE TO ISOBUTANE |
摘要 |
<p>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 C<SUB>4</SUB> Permeate Flow Index of at least 0.01 and a C<SUB>4</SUB> Permeate Flow Ratio of at least 1.25:1.</p> |
申请公布号 |
EP1856016(A1) |
申请公布日期 |
2007.11.21 |
申请号 |
EP20060738661 |
申请日期 |
2006.03.10 |
申请人 |
UOP LLC |
发明人 |
SHIELDS, DALE, J.;SHECTERLE, DAVID, J. |
分类号 |
C07C5/27;B01D61/14;B01D61/36;C07C7/144;C07C9/12 |
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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