发明名称 |
Method of working up an overhead product of an extractive distillation of a hydrocarbon mixture and apparatus for same |
摘要 |
A hydrocarbon material of the starting product is separated in an extractive distillation column in which an N-substituted morpholine whose substituents do not have more than seven carbon atoms is used as a selective solvent. The overhead product comes down as a top product of the extractive distillation and is fed through a coalescer in which the sump product comes down with a solvent content of 20 to 75% by weight at a temperature of 20 DEG to 70 DEG C. and subsequent to that is fed into a separating vessel. There it is separated into a heavier and lighter phase. After that the heavier phase is conducted into an extractive distillation column and the lighter phase into the overhead product distillation column.
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申请公布号 |
US5031754(A) |
申请公布日期 |
1991.07.16 |
申请号 |
US19900467876 |
申请日期 |
1990.01.19 |
申请人 |
KRUPP KOPPERS GMBH |
发明人 |
EMMRICH, GERD;SCHNEIDER, HANS-CHRISTOPH;RUEDEL, ULRICH |
分类号 |
B01D17/028;C10G7/08 |
主分类号 |
B01D17/028 |
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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