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    Self-sulfiding of guard reactor catalyst for solvent assisted tar conversion processes
    1.
    发明授权
    Self-sulfiding of guard reactor catalyst for solvent assisted tar conversion processes 有权

    公开(公告)号：US11236276B2

    公开(公告)日：2022-02-01

    申请号：US16544551

    申请日：2019-08-19

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Krystle J. Emanuele ,  Glenn A. Heeter ,  Kapil Kandel ,  Teng Xu

    IPC: C10G69/06 ,  B01J23/755 ,  B01J23/28 ,  B01J37/20 ,  C10G67/14 ,  C10G67/02

    Abstract: The present disclosure provides methods for hydroprocessing of heavy oils, such as pyrolysis tars. For example, a process for preparing a liquid hydrocarbon product includes providing a first process stream comprising a reduced reactivity tar, and blending the first process stream with a utility fluid to produce a second process stream comprising solids and a reduced reactivity, lower viscosity tar. The method can includes introducing the second process stream into a guard reactor without sulfiding the guard reactor catalyst(s) prior to introducing the second process stream into the guard reactor. The method includes hydroprocessing the second process stream in the guard reactor under mild hydroprocessing conditions to produce a third process stream. The method includes hydroprocessing the third process stream to produce a fourth process stream having a bromine number (BN) lower than 12 and comprising the liquid hydrocarbon product and the utility fluid.

    Pyrolysis Tar Pretreatment
    5.
    发明申请
    Pyrolysis Tar Pretreatment 审中-公开

    公开(公告)号：US20200063046A1

    公开(公告)日：2020-02-27

    申请号：US16467781

    申请日：2017-12-01

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Kapil Kandel ,  Krystle J. Emanuele ,  Glenn A. Heeter ,  Gaurav Agrawal ,  Jeffrey C. Yeh ,  Teng Xu

    IPC: C10G69/06

    Abstract: This invention relates to thermally-treating and hydroprocessing pyrolysis tar to produce a hydroprocessed pyrolysis tar, but without excessive foulant accumulation during the hydroprocessing. The invention also relates to upgrading the hydroprocessed tar by additional hydroprocessing; to products of such processing; to blends comprising one or more of such products; and to the use of such products and blends, e.g., as lubricants, fuels, and/or constituents thereof.

    Purification of Aromatic Hydrocarbon Streams
    8.
    发明申请
    Purification of Aromatic Hydrocarbon Streams 审中-公开
    芳香烃流的净化

    公开(公告)号：US20140296598A1

    公开(公告)日：2014-10-02

    申请号：US14186482

    申请日：2014-02-21

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Glenn A. Heeter ,  John D. Ou ,  Robert G. Tinger

    IPC: C07C7/12

    CPC classification number: C07C7/12 ,  C07C15/08

    Abstract: The invention is directed to a process for the removal of olefin impurities from a feedstream comprising greater than equilibrium amounts of paraxylene by contact of the feedstream with a bed of solid acid catalyst to produce a product comprising reduced olefin impurities (when compared with said feedstream), said process comprising at least one of (i) reduced bed temperature on startup, and (ii) reduced flow rate on startup, wherein, in embodiments, there is a reduction in side reactions such as isomerization and/or transalkylation and/or disproportionation of paraxylene, when compared with conventional startup procedures.

    Abstract translation: 本发明涉及通过进料流与固体酸催化剂床的接触从包含大于平衡量的对二甲苯的原料流中除去烯烃杂质的方法，以产生包含还原烯烃杂质的产物（与所述原料流相比） 所述方法包括以下中的至少一种：（i）启动时降低的床温度，和（ii）启动时的流速降低，其中在实施方案中，副反应如异构化和/或烷基转移和/或歧化减少 与常规启动程序相比较。

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