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1. 发明申请

WO2012058106A3 PROCESS FOR THE PRODUCTION OF PURIFIED XYLENE ISOMERS 审中-公开
公开(公告)号：WO2012058106A3
公开(公告)日：2012-05-03
申请号：PCT/US2011/057226
申请日：2011-10-21
申请人： EXXONMOBIL CHEMICAL PATENTS INC. , PILLIOD, Dana, Lynn , OU, John, Di-yi
发明人： PILLIOD, Dana, Lynn , OU, John, Di-yi
IPC分类号： C07C7/12 , C07C7/14 , C07C7/144 , C07C5/22 , C07C15/08
摘要： The invention is directed to a process to produce paraxylene and orthoxylene, including reducing the amount of isomerate recycle from vapor phase xylenes isomerization by providing a parallel configuration of vapor phase and liquid phase isomerization units.

2. 发明申请

WO2012058108A3 PROCESS FOR THE PRODUCTION OF PARAXYLENE 审中-公开
公开(公告)号：WO2012058108A3
公开(公告)日：2012-05-03
申请号：PCT/US2011/057240
申请日：2011-10-21
申请人： EXXONMOBIL CHEMICAL PATENTS INC. , PILLIOD, Dana, Lynn , OU, John, Di-yi
发明人： PILLIOD, Dana, Lynn , OU, John, Di-yi
IPC分类号： C07C7/12 , C07C7/14 , C07C5/22 , C07C15/08 , C07C15/04
摘要： A process for the purification of aromatic feedstream to produce paraxylene is disclosed, including the separation of a C8+ aromatic feedstream into a steam comprising C8 aromatic species and a stream comprising C9+ aromatic species. After separation of PX from the C8 aromatic stream, a PX-depleted stream is separated and processed in a liquid phase isomerization unit and a vapor phase isomerization unit in parallel.

3. 发明申请

WO2010138284A2 PAREX UNIT FEED 审中-公开
标题翻译： PAREX单位进纸
公开(公告)号：WO2010138284A2
公开(公告)日：2010-12-02
申请号：PCT/US2010/033722
申请日：2010-05-05
申请人： EXXONMOBIL CHEMICAL PATENTS INC. , GO, Anthony , PILLIOD, Dana, Lynn , PORTER, John, Roger
发明人： GO, Anthony , PILLIOD, Dana, Lynn , PORTER, John, Roger
IPC分类号： B01D15/02 , B01D15/00
CPC分类号： C07C7/13 , B01D15/1807 , B01D15/1821 , B01D15/1828 , B01D15/1835 , B01D2215/023 , C07C7/12 , C10G25/08 , C07C15/08
摘要： A process for separating a product from a multicomponent feedstream to an adsorption apparatus or system. The apparatus or system may comprise a moving-bed or a simulated moving-bed adsorption means. The product comprises at least one organic compound, such as an aryl compound with alkyl substitutes. In embodiments the conduits used to supply the feedstream to the apparatus or system are flushed with media of multiple grades. In embodiments the process achieves improvements in one or more of efficiency of adsorption separation, capacity of adsorption apparatus systems, and purity of product attainable by adsorption process.
摘要翻译：将产物从多组分进料流分离到吸附装置或系统的方法。该装置或系统可包括移动床或模拟移动床吸附装置。产物包含至少一种有机化合物，例如具有烷基取代基的芳基化合物。在实施例中，用于将进料流供应到设备或系统的管道用多个等级的介质冲洗。在实施方案中，该方法实现了吸附分离效率，吸附装置系统的容量和通过吸附过程可获得的产物的纯度中的一种或多种的改进。

4. 发明申请

WO2016175898A1 PROCESS AND APPARATUS FOR THE PRODUCTION OF PARA-XYLENE 审中-公开
标题翻译：用于生产PARA-XYLENE的方法和装置
公开(公告)号：WO2016175898A1
公开(公告)日：2016-11-03
申请号：PCT/US2015/065714
申请日：2015-12-15
申请人： EXXONMOBIL CHEMICAL PATENTS INC.
发明人： TINGER, Robert, G. , PILLIOD, Dana, Lynn , MOLINIER, Michel
IPC分类号： C07C5/27 , C07C7/12 , B01J19/32
CPC分类号： C07C7/12 , B01D15/185 , C07C5/2775 , C07C2529/40 , Y02P20/57 , C07C15/08
摘要： The present invention is an improved process and apparatus for producing para-xylene, particularly with respect to a process that involves the methylation of toluene and/or benzene to selectively produce para-xylene, wherein streams having differing amounts of ethylbenzene are separately treated in the recovery of para-xylene. A first hydrocarbon feed comprising xylenes and ethylbenzene is provided to a first para-xylene adsorption section, and a second hydrocarbon feed comprising xylenes and less EB than the first hydrocarbon feed is provided to a second para-xylene adsorption section. Segregating the feeds with differing ethylbenzene contents increases the overall efficiency of the adsorption of para-xylene by the adsorption units. Efficiency and energy savings may be further improved by subjecting the lower-content ethylbenzene stream to liquid phase isomerization.
摘要翻译：本发明是一种用于生产对二甲苯的改进方法和装置，特别是涉及甲苯和/或苯甲基化以选择性地生产对二甲苯的方法，其中具有不同量乙苯的物流在回收对二甲苯。提供包含二甲苯和乙苯的第一烃进料到第一对二甲苯吸附部分，并且向第二对二甲苯吸附部分提供包含二甲苯和比第一烃进料少的EB的第二烃进料。用不同的乙苯含量分离进料增加了吸附单元吸附对二甲苯的总体效率。通过使较低含量的乙苯料流进行液相异构化，可以进一步提高效率和节能。

5. 发明申请

WO2016148755A1 PROCESS AND APPARATUS FOR THE PRODUCTION OF PARA-XYLENE 审中-公开
标题翻译：用于生产PARA-XYLENE的方法和装置
公开(公告)号：WO2016148755A1
公开(公告)日：2016-09-22
申请号：PCT/US2015/065703
申请日：2015-12-15
申请人： EXXONMOBIL CHEMICAL PATENTS INC.
发明人： BENDER, Timothy, P. , PORTER, John, R. , PILLIOD, Dana, Lynn
IPC分类号： C07C5/22 , C07C5/27 , C07C7/04 , C07C7/12 , C07C7/14 , C07C7/144 , C07C7/148 , C07C15/08
CPC分类号： C07C7/12 , B01D15/185 , C07C5/2702 , C07C5/2729 , C07C7/04 , C07C15/08
摘要： A process for producing para-xylene (PX) comprises supplying a hydrocarbon feed comprising xylenes and ethylbenzene (EB) to a PX recovery unit, where a PX-rich stream and at least one PX-depleted stream are recovered from the feed. The PX-depleted stream is then separated into an EB-rich stream and an EB-depleted stream in a divided wall column. The EB-depleted stream is then isomerized under at least partial liquid phase conditions to produce a first isomerized stream having a higher PX concentration than the PX-depleted stream, and the EB-rich stream is isomerized under at least partial vapor phase conditions to produce a second isomerized stream having a higher PX concentration than the PX-depleted stream. The first and second isomerized streams are then recycled to the PX recovery unit to recover additional PX and the process is repeated to define a so-called xylene isomerization loop.
摘要翻译：制备对二甲苯（PX）的方法包括将包含二甲苯和乙苯（EB）的烃进料供应到PX回收单元，其中富含PX的料流和至少一种不含PX的料流从进料中回收。然后将PX-贫化的物流分离成富EB的流和分离壁塔中的EB-贫化的流。然后将EB-贫化的物流在至少部分液相条件下异构化，以产生具有比PX贫化物流更高的PX浓度的第一异构化物流，并且在至少部分气相条件下将富含EB的物流异构化以产生具有比PX贫化物流更高的PX浓度的第二异构化物流。然后将第一和第二异构化物流再循环到PX回收单元以回收另外的PX，并重复该过程以定义所谓的二甲苯异构化回路。

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