发明名称 |
Separation of oxygenates from a hydrocarbon stream |
摘要 |
This invention relates to a method for separating olefins and paraffins from oxygenates in a liquid hydrocarbon stream containing a high proportion of olefins, paraffins and oxygenates (mainly alcohols). Typically, the hydrocarbon stream is obtained from a Fischer-Tropsch process. The organic counter-solvent has a boiling point which is less than the boiling point of the most volatile alcohol in the hydrocarbon stream. A raffinate from the liquid-liquid extractor is passed to a distillation column. A bottoms product from the distillation column comprises olefins and paraffins, and the overhead product comprising solvents is recycled. An extract from the liquid-liquid extractor is sent to a stripping column, where a bottoms product containing pure alcohol is obtained. The overhead product containing counter-solvent is recycled.
|
申请公布号 |
US2004044263(A1) |
申请公布日期 |
2004.03.04 |
申请号 |
US20030398783 |
申请日期 |
2003.09.22 |
申请人 |
DE WET JOHAN PIETER;SCHOLTZ JACOB JOHANNES |
发明人 |
DE WET JOHAN PIETER;SCHOLTZ JACOB JOHANNES |
分类号 |
C10G21/04;C10G21/14;C10G53/04;(IPC1-7):C07C7/00 |
主分类号 |
C10G21/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|