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    Pyrolysis Tar Pretreatment
    2.
    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.

    Processes for Producing Mesophase Pitch
    9.
    发明公开
    Processes for Producing Mesophase Pitch 审中-公开

    公开(公告)号：US20240059976A1

    公开(公告)日：2024-02-22

    申请号：US18260761

    申请日：2022-01-04

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Yifei Liu ,  Stephen T. Cohn ,  Jeffrey C. Yeh ,  Teng Xu

    IPC: C10C3/08 ,  C10C3/00 ,  D01F9/155

    CPC classification number: C10C3/08 ,  C10C3/002 ,  D01F9/155

    Abstract: Processes are described for producing mesophase pitch. The processes generally comprise providing a feedstock having a T5 ≥400° F. (204° C.) and a T95 ≤1,400° F. (760° C.) and heating the feedstock at a temperature ranging from about 420° C. to about 520° C. to produce a heat treated product including isotropic pitch. Generally, the heating is conducted under conditions sufficient to satisfy the relationship [X*Y]≥20,000 seconds, wherein X is the equivalent reaction time of the heating, and wherein Y is the bromine number of the feedstock as measured in accordance with ASTM D1159. The processes generally further comprise contacting the isotropic pitch with a solvent having a Solubility Blending number (SBN) of at least about 10 SU under conditions sufficient to produce a solvent fraction comprising the solvent and an insoluble fraction comprising mesophase pitch, and recovering the mesophase pitch.

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