发明名称 |
Apparatus for removing a contaminant from a solvent separation process |
摘要 |
The invention is a process and apparatus for removing a contaminant from an aromatic selective solvent. A feed stream comprising an aromatic hydrocarbon and a non-aromatic hydrocarbon is contacted with the aromatic selective solvent in an extractive distillation zone to produce a raffinate stream comprising the non-aromatic hydrocarbon, and a rich solvent stream comprising the aromatic hydrocarbon and the solvent. The rich solvent stream is separated in a second distillation zone to produce an extract stream comprising the aromatic hydrocarbon, and a lean solvent stream comprising the contaminant and the aromatic selective solvent. At least a portion of the lean solvent stream is washed with a non-aromatic hydrocarbon to produce a clean solvent stream, at least a portion of which is passed to at least one of the extractive distillation zone and the second distillation zone. |
申请公布号 |
US8696871(B2) |
申请公布日期 |
2014.04.15 |
申请号 |
US20100782753 |
申请日期 |
2010.05.19 |
申请人 |
NOE JASON L.;SULLIVAN LAWRENCE E.;BEADLE BRUCE R.;CASEY EDWARD M.;STOODT THOMAS J.;UOP LLC |
发明人 |
NOE JASON L.;SULLIVAN LAWRENCE E.;BEADLE BRUCE R.;CASEY EDWARD M.;STOODT THOMAS J. |
分类号 |
B01D11/00;C10G7/00 |
主分类号 |
B01D11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|