发明名称 |
Selective multi-ring aromatics extraction using a porous, non-selective partition membrane barrier |
摘要 |
Multi-ring aromatic hydrocarbons and/or toxins are selectively solvent extracted from hydocarbon feed streams by the process comprising contacting the aromatics and/or toxins containing hydrocarbon stream with one side of a porous, non-selective partition barrier membrane while simultaneously contacting the other side of said membrane with an aromatics selective extraction solvent whereby the multi-ring aromatic hydrocarbons and/or toxins selectively migrate through the porous partition barrier membrane in response to the selective solvent. A preferred extraction solvent is ethylenediamine. The permeate comprising multi-ring aromatics in solvent can be subjected to a membrane separation process to separate the extraction solvent from the aromatics.
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申请公布号 |
US5045206(A) |
申请公布日期 |
1991.09.03 |
申请号 |
US19900622706 |
申请日期 |
1990.12.05 |
申请人 |
EXXON RESEARCH & ENGINEERING COMPANY |
发明人 |
CHEN, TAN-JEN;SWEET, JAMES R. |
分类号 |
B01D11/04;B01D61/24;C07C7/144;C10G31/11 |
主分类号 |
B01D11/04 |
代理机构 |
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代理人 |
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