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    Upgrading Hydrocarbon Pyrolysis Products
    2.
    发明申请
    Upgrading Hydrocarbon Pyrolysis Products 审中-公开

    公开(公告)号：US20180334622A1

    公开(公告)日：2018-11-22

    申请号：US15971590

    申请日：2018-05-04

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Gaurav Agrawal ,  Stephen T. Cohn ,  Kapil Kandel ,  Subramanya V. Nayak ,  Teng Xu

    IPC: C10G47/04

    CPC classification number: C10G47/04 ,  C10G9/36 ,  C10G45/38 ,  C10G47/00 ,  C10G65/04 ,  C10G65/12 ,  C10G2300/301 ,  C10G2400/04

    Abstract: A hydrocarbon conversion process comprises providing a hydrocarbon feedstock comprising an effluent fraction from a pyrolysis process, wherein the effluent fraction has an initial boiling point at atmospheric pressure of at least 177° C. and a final boiling point at atmospheric pressure of no more than 343° C. and comprises at least 0.5 wt. % of olefinic hydrogen atoms based on the total weight of hydrogen atoms in the effluent fraction. The hydrocarbon feedstock is hydroprocessed in at least one hydroprocessing zone in the presence of treatment gas comprising molecular hydrogen under catalytic hydroprocessing conditions to produce a hydroprocessed product comprising less than 0.5 wt. % of olefinic hydrogen atoms based on the total weight of hydrogen atoms in the hydroprocessed product. The hydroprocessing conditions comprise a temperature from 150 to 350° C. and a pressure from 500 to 1500 psig (3550 to 10445 kPa-a).

    Upgrading hydrocarbon pyrolysis products
    3.
    发明授权
    Upgrading hydrocarbon pyrolysis products 有权

    公开(公告)号：US10344222B2

    公开(公告)日：2019-07-09

    申请号：US15971590

    申请日：2018-05-04

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Gaurav Agrawal ,  Stephen T. Cohn ,  Kapil Kandel ,  Subramanya V. Nayak ,  Teng Xu

    IPC: C10G9/36 ,  C10G47/04 ,  C10G45/38 ,  C10G47/00 ,  C10G65/04 ,  C10G65/12

    Abstract: A hydrocarbon conversion process comprises providing a hydrocarbon feedstock comprising an effluent fraction from a pyrolysis process, wherein the effluent fraction has an initial boiling point at atmospheric pressure of at least 177° C. and a final boiling point at atmospheric pressure of no more than 343° C. and comprises at least 0.5 wt. % of olefinic hydrogen atoms based on the total weight of hydrogen atoms in the effluent fraction. The hydrocarbon feedstock is hydroprocessed in at least one hydroprocessing zone in the presence of treatment gas comprising molecular hydrogen under catalytic hydroprocessing conditions to produce a hydroprocessed product comprising less than 0.5 wt. % of olefinic hydrogen atoms based on the total weight of hydrogen atoms in the hydroprocessed product. The hydroprocessing conditions comprise a temperature from 150 to 350° C. and a pressure from 500 to 1500 psig (3550 to 10445 kPa-a).

    Processes for Producing Mesophase Pitch
    6.
    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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