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    Paraxylene Separation Process
    4.
    发明申请
    Paraxylene Separation Process 审中-公开

    公开(公告)号：US20170297976A1

    公开(公告)日：2017-10-19

    申请号：US15637596

    申请日：2017-06-29

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： John Di-Yi Ou ,  Jeevan S. Abichandani

    IPC: C07C5/27 ,  C07C6/06

    CPC classification number: C07C5/222 ,  C07C4/02 ,  C07C5/2732 ,  C07C5/277 ,  C07C6/06 ,  C07C7/12 ,  C07C2529/40 ,  C07C15/08

    Abstract: The invention relates to a p-xylene separation process wherein at least a portion of ethylbenzene present in an aromatics-containing feed is removed prior to isomerization. Aspects of the invention provide a process for producing p-xylene. The process includes providing a first mixture comprising ≧5.0 wt. % of aromatic C8 isomers, the C8 isomers comprising p-xylene and ethylbenzene. A p-xylene-containing portion and an ethylbenzene-containing portion are separated from the first mixture in a first separation stage to form a p-xylene-depleted raffinate. The first separation stage can include at least one simulated moving-bed adsorptive separation stage. At least a portion the p-xylene-depleted raffinate in the liquid phase is reacted to produce a reactor effluent comprising aromatic C8 isomers. The first mixture can be combined with ≧50.0 wt. % of the reactor effluent's aromatic C8 isomers. The combining can be carried out before and/or during the separating of the p-xylene and ethylbenzene portions.

    Paraxylene Separation Process
    5.
    发明申请
    Paraxylene Separation Process 有权
    对二甲苯分离工艺

    公开(公告)号：US20150266794A1

    公开(公告)日：2015-09-24

    申请号：US14624861

    申请日：2015-02-18

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： John D. OU ,  Jeevan S. Abichandani

    IPC: C07C5/22 ,  C07C4/02 ,  C07C6/06

    CPC classification number: C07C5/222 ,  C07C4/02 ,  C07C5/2732 ,  C07C5/277 ,  C07C6/06 ,  C07C7/12 ,  C07C2529/40 ,  C07C15/08

    Abstract: The invention relates to a p-xylene separation process wherein at least a portion of ethylbenzene present in an aromatics-containing feed is removed prior to isomerization. Aspects of the invention provide a process for producing p-xylene. The process includes providing a first mixture comprising ≧5.0 wt. % of aromatic C8 isomers, the C8 isomers comprising p-xylene and ethylbenzene. A p-xylene-containing portion and an ethylbenzene-containing portion are separated from the first mixture in a first separation stage to form a p-xylene-depleted raffinate. The first separation stage can include at least one simulated moving-bed adsorptive separation stage. At least a portion the p-xylene-depleted raffinate in the liquid phase is reacted to produce a reactor effluent comprising aromatic C8 isomers. The first mixture can be combined with ≧50.0 wt. % of the reactor effluent's aromatic C8 isomers. The combining can be carried out before and/or during the separating of the p-xylene and ethylbenzene portions.

    Abstract translation: 本发明涉及对二甲苯分离方法，其中存在于含芳族化合物的进料中的至少一部分乙苯在异构化之前被除去。 本发明的方面提供了生产对二甲苯的方法。 该方法包括提供包含≥5.0wt。 ％的芳族C8异构体，C8异构体包括对二甲苯和乙苯。 在第一分离阶段将含对二甲苯的部分和含乙苯的部分与第一混合物分离以形成对二甲苯贫化的残液。 第一分离阶段可以包括至少一个模拟移动床吸附分离阶段。 在液相中至少一部分对二甲苯贫化的萃余液反应以产生包含芳族C 8异构体的反应器流出物。 第一混合物可以与≥50.0wt。 反应器流出物的芳族C8异构体的百分比。 组合可以在对二甲苯和乙苯部分分离之前和/或期间进行。

    Hydrocarbon Conversion Process and Molecular Sieve of MFS Framework Type With Controllable Average Size
    6.
    发明申请
    Hydrocarbon Conversion Process and Molecular Sieve of MFS Framework Type With Controllable Average Size 审中-公开
    具有可控平均尺寸的MFS框架类型的烃转化过程和分子筛

    公开(公告)号：US20140330061A1

    公开(公告)日：2014-11-06

    申请号：US14336962

    申请日：2014-07-21

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Machteld M. W. Mertens

    IPC: B01J29/70 ,  C10G47/16 ,  C07C2/58

    CPC classification number: B01J29/7026 ,  B01J20/186 ,  B01J29/06 ,  B01J35/002 ,  B01J35/023 ,  C01B39/48 ,  C07C1/20 ,  C07C2/12 ,  C07C2/58 ,  C07C4/06 ,  C07C5/222 ,  C07C2529/70 ,  C10G3/49 ,  C10G11/05 ,  C10G29/205 ,  C10G45/00 ,  C10G45/64 ,  C10G45/68 ,  C10G47/16 ,  C10G49/08 ,  C10G50/00 ,  C07C11/02

    Abstract: A method of making a crystalline molecular sieve of MFS framework type, preferably ZSM-57, from a synthesis mixture comprising at least one source of tetravalent element (Y), at least one source of trivalent element (X), at least one source of alkali metal hydroxide (MOH), at least one structure-directing-agent (R) and water, said alkali metal (M) comprising potassium, and having the following mole composition (expressed in terms of oxide): YO2:(p) X2O3:(q)OH−:(r)R:(s)H2O, wherein (p) is in the range from 0.005 to 0.05, (q) is in the range from 0.01 to 3, (r) is in the range from 0.03 to 2 and (s) is in the range from 10 to 75 (based on total weight of said synthesis mixture); wherein the crystals of molecular sieve formed having an average diameter (D) of less than or equal to 1.5 micron and an average thickness (T) of less than or equal to 300 nanometers.

    Abstract translation: 从包含至少一种四价元素（Y）源，至少一种三价元素（X）源的合成混合物制备MFS骨架型结晶分子筛（优选ZSM-57）的方法，至少一种源 碱金属氢氧化物（MOH），至少一种结构导向剂（R）和水，所述碱金属（M）包含钾，并具有以下摩尔组成（以氧化物表示）：YO 2：（p）X 2 O 3 ：（q）OH - （r）R：（s）H 2 O，其中（p）在0.005至0.05的范围内，（q）在0.01至3的范围内，（r） 0.03至2和（s）在10至75（基于所述合成混合物的总重量）的范围内; 其中形成的平均直径（D）小于或等于1.5微米且平均厚度（T）小于或等于300纳米的分子筛晶体。

    Process for Producing Para-Xylene
    7.
    发明申请
    Process for Producing Para-Xylene 失效
    生产对二甲苯的方法

    公开(公告)号：US20120330075A1

    公开(公告)日：2012-12-27

    申请号：US13594286

    申请日：2012-08-24

    Applicant: John Di-Yi Ou ,  John R. Porter

    Inventor： John Di-Yi Ou ,  John R. Porter

    IPC: C07C5/22

    CPC classification number: C07C5/2729 ,  C07C5/22 ,  C07C5/222 ,  C07C7/12 ,  C07C7/14 ,  C07C15/08

    Abstract: 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.

    Abstract translation: 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。

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