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    Upgrading hydrocarbon pyrolysis products
    11.
    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).

    Process for C5+ hydrocarbon conversion
    15.
    发明授权
    Process for C5+ hydrocarbon conversion 有权

    公开(公告)号：US11286435B2

    公开(公告)日：2022-03-29

    申请号：US17282993

    申请日：2019-11-04

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： John R. DeLaney ,  John J. Monson ,  Teng Xu ,  Kendele S. Galvan

    IPC: C10G69/06 ,  B01D3/14 ,  B01J19/24 ,  C10J3/72

    Abstract: In some examples, a vapor phase product and a liquid phase product can be separated from a heated mixture that includes steam and a hydrocarbon. The vapor phase product can be steam cracked to produce a steam cracker effluent. The steam cracker effluent can be contacted with a quench fluid to produce a cooled steam cracker effluent. The steam cracker effluent can be at a temperature of >300° C. when initially contacted with the quench fluid. A tar product and a process gas that can include ethylene and propylene can be separated from the cooled steam cracker effluent. The tar product can be hydroprocessed to produce a first hydroprocessed product. A hydroprocessor heavy product and a utility fluid product can be separated from the first hydroprocessed product. The quench fluid can be or include at least a portion of the utility fluid product.

    Self-Sulfiding of Guard Reactor Catalyst for Solvent Assisted Tar Conversion Processes
    20.
    发明申请
    Self-Sulfiding of Guard Reactor Catalyst for Solvent Assisted Tar Conversion Processes 审中-公开

    公开(公告)号：US20200063047A1

    公开(公告)日：2020-02-27

    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.

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