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 |
AU9408101(A) |
申请公布日期 |
2002.04.22 |
申请号 |
AU20010094081 |
申请日期 |
2001.10.09 |
申请人 |
SASOL TECHNOLOGY (PTY) LTD. |
发明人 |
JOHAN PETER DE WET;JACOB JOHANNES SCHOLTZ |
分类号 |
C10G21/04;C10G21/14;C10G53/04 |
主分类号 |
C10G21/04 |
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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