公开(公告)号：WO2013089900A1

公开(公告)日：2013-06-20

申请号：PCT/US2012/059163

申请日：2012-10-08

申请人： UOP LLC

发明人： CORRADI, Jason, T.

IPC分类号： C07C7/12 ,  C07C15/08 ,  B01D15/00

CPC分类号： C07C5/2729 ,  B01J2219/00006 ,  C07C7/005 ,  C07C7/12 ,  C07C7/148 ,  C07C15/08

摘要： A process for separating para -xylene from a plurality of aromatic compounds, wherein the process introduces a mixed xylene feed stream comprising a plurality of xylene isomers into a first separation assembly to produce a first para -xylene enriched stream and a first raffinate stream. The process further feeds the raffinate stream into an isomerization unit to convert the raffinate stream into an isomerization reactor product stream, and introduces the isomerization reactor product stream into to a second para -xylene adsorptive separation unit to produce a second para -xylene enriched stream and a second raffinate stream.

摘要翻译： 一种从多种芳族化合物中分离对二甲苯的方法，其中该方法将包含多个二甲苯异构体的混合二甲苯进料流引入第一分离组合物中以产生第一对二甲苯富集流和第一萃余液流。 该方法进一步将萃余物流进料到异构化单元中以将萃余液流转化成异构化反应器产物流，并将异构化反应器产物流引入第二对二甲苯吸附分离单元以产生第二对二甲苯富集流， 第二个提余液流。

公开(公告)号：WO2012170336A2

公开(公告)日：2012-12-13

申请号：PCT/US2012/040704

申请日：2012-06-04

申请人： EXXONMOBIL CHEMICAL PATENTS INC. ,  ZHENG, Xiaobo ,  HAGEMEISTER, Mark, P. ,  BENDER, Timothy, P. ,  TINGER, Robert, G.

发明人： ZHENG, Xiaobo ,  HAGEMEISTER, Mark, P. ,  BENDER, Timothy, P. ,  TINGER, Robert, G.

CPC分类号： B01J8/18 ,  B01J8/1827 ,  B01J2219/00006 ,  C07C2/864 ,  C07C5/2729 ,  C07C7/12 ,  C07C7/14 ,  C07C7/1485 ,  C07C2523/04 ,  C07C2529/40 ,  C07C2529/65 ,  C07C15/08

摘要： The invention is a process for producing paraxylene, benzene and/or toluene is alkylated with methanol in the presence of a catalyst under conditions effective to convert said benzene and/or toluene to xylene and produce a product stream containing water, xylene and one or more phenolic impurities. The said product stream is separated into a water-rich stream and a xylene-rich stream containing one or more phenolic impurities and at least a portion of the xylene-rich stream is contacted with an aqueous solution of a base under conditions to remove at least some of the phenolic impurities from the xylene-rich stream portion.

摘要翻译： 本发明是在有效将所述苯和/或甲苯转化为二甲苯的条件下，在催化剂存在下用甲醇烷基化的对二甲苯，苯和/或甲苯的方法，并产生含有水，二甲苯和一种或多种 酚类杂质。 将所述产物流分离成富含水的物流和含有一种或多种酚类杂质的富含二甲苯的物流，并且至少部分富含二甲苯的物流与碱的水溶液接触，至少除去 一些来自富含二甲苯的料流部分的酚类杂质。

公开(公告)号：WO2007127049A2

公开(公告)日：2007-11-08

申请号：PCT/US2007008829

申请日：2007-04-10

申请人： EXXONMOBIL CHEM PATENTS INC ,  OU JOHN DI-YI ,  HELMKE HAROLD W JR ,  PORTER JOHN R

发明人： OU JOHN DI-YI ,  HELMKE HAROLD W JR ,  PORTER JOHN R

CPC分类号： C07C5/2729 ,  C07C5/2732 ,  C07C7/13 ,  C07C15/08

摘要： A process for producing a PX-rich product comprises (a) separating a feedstock containing C 8 hydrocarbons to produce a C 8 hydrocarbons rich stream; (b) separating at least a first portion of the C 8 hydrocarbons rich stream to produce a first PX-rich stream and a first PX-depleted stream; (c) isomerizing at least a portion of the first PX-depleted stream to produce a first isomerized stream having a higher PX concentration than the first PX-depleted stream; (d) separating a second portion of the C 8 hydrocarbons rich stream and/or at least a portion of the first isomerized stream to produce a second PX-rich stream and a second PX-depleted stream; (e) isomerizing at least a portion of the second PX-depleted stream to produce a second isomerized stream having a higher PX concentration than the second PX-depleted stream; (f) recovering at least a portion of at least one of the first and second PX-rich streams as PX-rich product; and (g) supplying at least a portion of at least one of the first isomerized stream, the second isomerized stream, the first PX-rich stream, and the second PX-rich stream to the separating (a).

摘要翻译： 生产富含PX的产物的方法包括（a）分离含有C 8/8烃的原料以产生C 8富含碳氢化合物的物流; （b）分离至少第一部分的富碳氢化合物物流以产生第一富含PX的物流和第一富含PX的物流; （c）使至少一部分所述第一贫含PX的物流异构化以产生具有比所述第一贫含量贫聚合物流高的PX浓度的第一异构化物流; （d）分离第二部分富碳氢化合物物流和/或至少一部分第一异构化物流以产生第二富含PX物流和第二富含PX的物流; （e）使至少一部分所述第二贫含PX的物流异构化以产生具有比所述第二贫含磷物流更高的PX浓度的第二异构化物流; （f）回收第一和第二富含PX的物流中的至少一个的至少一部分作为富含PX的产物; 和（g）将所述第一异构化流，所述第二异构化流，所述第一富含PX的流和所述第二富含PX的流中的至少一个的至少一部分供应至所述分离（a）。