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    Process for the Production of Paraxylene
    2.
    发明申请
    Process for the Production of Paraxylene 审中-公开
    对二甲苯生产工艺

    公开(公告)号：US20120108868A1

    公开(公告)日：2012-05-03

    申请号：US13279665

    申请日：2011-10-24

    申请人： Dana Lynn Pilliod ,  John Di-Yi Ou

    发明人： Dana Lynn Pilliod ,  John Di-Yi Ou

    IPC分类号： C07C5/27 ,  B01J14/00

    CPC分类号： C07C7/12 ,  C07C5/2732 ,  C07C7/04 ,  C07C7/14 ,  C07C15/08

    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.

    摘要翻译： 公开了用于纯化芳族原料流以制备对二甲苯的方法，包括将C8 +芳族原料流分离成包含C8芳族物质的蒸汽和包含C9 +芳族物质的料流。 在分离PX与C8芳族物流之后，将PX-贫化的物流分离并在液相异构化装置和气相异构化装置中并行处理。

    Process for producing para-xylene
    4.
    发明申请
    Process for producing para-xylene 有权
    生产对二甲苯的方法

    公开(公告)号：US20070249882A1

    公开(公告)日：2007-10-25

    申请号：US11784981

    申请日：2007-04-10

    申请人： John Di-Yi Ou ,  Harold W. Helmke ,  John R. Porter

    发明人： John Di-Yi Ou ,  Harold W. Helmke ,  John R. Porter

    IPC分类号： C07C5/22

    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 C8 hydrocarbons to produce a C8 hydrocarbons rich stream; (b) separating at least a first portion of the C8 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 C8 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： 制备富含PX的产物的方法包括（a）分离含有C 8 O 8烃的原料以产生富含C 8 C 8烃的物流; （b）分离至少第一部分富含烃的物流以产生富含第一富含PX的物流和第一个PX-贫化的物流; （c）将至少一部分第一PX-贫化物流异构化以产生具有比第一个PX-贫化物流更高的PX浓度的第一异构化物流; （d）分离第二部分富含C 8烃的流和/或至少一部分第一异构化流以产生第二富含PX的流和第二个PX-贫化的流; （e）将至少一部分第二PX-贫化物流异构化以产生具有比第二个PX-贫化物流更高的PX浓度的第二异构化物流; （f）回收至少一部分第一和第二富含PX的物流中的一部分作为富含PX的产物; 和（g）将至少一部分第一异构化物流，第二异构化物流，第一富含PX的物流和第二富含PX的物流的至少一部分供应至分离物（a）。

    Process for producing para-xylene
    9.
    发明授权
    Process for producing para-xylene 失效
    生产对二甲苯的方法

    公开(公告)号：US08541639B2

    公开(公告)日：2013-09-24

    申请号：US13594286

    申请日：2012-08-24

    申请人： John Di-Yi Ou ,  John R. Porter

    发明人： John Di-Yi Ou ,  John R. Porter

    IPC分类号： C07C5/27

    CPC分类号： C07C5/2729 ,  C07C5/22 ,  C07C5/222 ,  C07C7/12 ,  C07C7/14 ,  C07C15/08

    摘要： A process for producing a PX-rich product, the process comprising: (a) providing a PX-depleted stream; (b) isomerizing at least a portion of the PX-depleted stream to produce an isomerized stream having a PX concentration greater than the PX-depleted stream and a benzene concentration of less than 1,000 ppm and a C9+ hydrocarbons concentration of less than 5,000 ppm; and (c) separating the isomerized stream by selective adsorption.

    摘要翻译： 一种富含PX的产物的方法，该方法包括：（a）提供PX-贫化的物流; （b）将至少一部分PX-贫化物流异构化以产生PX浓度大于PX-贫化物流的异构化物流，且苯浓度小于1,000ppm，C9 +烃浓度小于5,000ppm; 和（c）通过选择性吸附分离异构化流。

    Production of para-xylene by the methylation of benzene and/or toluene
    10.
    发明授权
    Production of para-xylene by the methylation of benzene and/or toluene 有权
    通过苯和/或甲苯的甲基化生产对二甲苯

    公开(公告)号：US08344197B2

    公开(公告)日：2013-01-01

    申请号：US12894778

    申请日：2010-09-30

    申请人： James R. Lattner ,  Mark P. Hagemeister ,  Jon Edmond Randolph Stanat ,  John Di-Yi Ou ,  Xiaobo Zheng ,  Lu Han

    发明人： James R. Lattner ,  Mark P. Hagemeister ,  Jon Edmond Randolph Stanat ,  John Di-Yi Ou ,  Xiaobo Zheng ,  Lu Han

    IPC分类号： C07C2/66

    CPC分类号： C07C2/864 ,  C07C2529/40 ,  Y02P20/52 ,  C07C15/08

    摘要： In a process for the production of para-xylene, methanol is preheated to a first temperature, an aromatic feedstock comprising toluene and/or benzene is preheated to a second temperature and the preheated methanol and aromatic feedstocks are fed to a reactor at a first methanol to aromatic feedstock molar ratio. The preheated aromatic feedstock is contacted with the preheated methanol under alkylation conditions in the reactor in the presence of a catalyst so that the methanol reacts with the aromatic feedstock to produce an effluent comprising para-xylene. During the reaction, a temperature is measured within the reactor and is compared with a predetermined optimal temperature. The methanol to aromatic feedstock molar ratio is then adjusted in a manner to reduce any difference between the measured and predetermined optimal temperatures in the reactor.

    摘要翻译： 在制备对二甲苯的方法中，将甲醇预热至第一温度，将包含甲苯和/或苯的芳族原料预热至第二温度，并将预热的甲醇和芳族原料以第一个甲醇 与芳烃原料摩尔比。 预热的芳族原料在催化剂存在下在反应器中在烷基化条件下与预热的甲醇接触，使得甲醇与芳族原料反应以产生包含对二甲苯的流出物。 在反应期间，在反应器内测量温度并与预定的最佳温度进行比较。 然后以降低反应器中测量的和预定的最佳温度之间的任何差异的方式调节甲醇与芳族原料的摩尔比。