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    Methods for Reducing Fouling in Tar Upgrading Processes
    2.
    发明申请
    Methods for Reducing Fouling in Tar Upgrading Processes 有权

    公开(公告)号：US20240384181A1

    公开(公告)日：2024-11-21

    申请号：US18690673

    申请日：2022-10-03

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Sundar Narayanan ,  Gaurav Agrawal ,  Teng Xu

    IPC: C10G9/16 ,  C10G49/00 ,  C10G69/06

    Abstract: The present disclosure generally relates to methods for reducing fouling in tar upgrading processes and to apparatus for carrying out such processes. In some embodiments, a method is provided that includes providing a first tar stream, combining the first tar stream with a utility fluid to form a first process stream having a viscosity lower than that of the first tar stream, and heating the first process stream in a pre-heater under liquid phase conditions without feeding molecular hydrogen gas into the pre-heater to form a second process stream exiting the pre-heater.

    Hydrocarbon Conversion Processes
    3.
    发明公开
    Hydrocarbon Conversion Processes 审中-公开

    公开(公告)号：US20240287395A1

    公开(公告)日：2024-08-29

    申请号：US18693100

    申请日：2022-10-14

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Krystle J. Emanuele ,  Teng Xu ,  Maryam Peer

    IPC: C10G65/12

    CPC classification number: C10G65/12 ,  C10G2300/301 ,  C10G2300/302 ,  C10G2300/4006 ,  C10G2300/4012 ,  C10G2300/80 ,  C10G2400/06

    Abstract: Hydrocarbon conversion processes. The process can include providing a gas oil feed that can include a gas oil and an olefin. A reactivity R(go) of the gas oil feed can be determined. The R(go) can be compared to a predetermined reference reactivity R(ref). If R(go)>R(ref), the gas oil feed can be heated to a temperature in a range of from 200° C. to 400° C. for a residence time in a range of from 1 minute to 45 minutes to produce a heat-treated gas oil feed having a reactivity R(ht-go), until R(ht-go)≤R(ref). A hydroprocessor feed that includes the gas oil feed if R(go)≤R(ref) or the heat-treated gas oil feed can be fed to a hydroprocessor. The hydroprocessor feed can be hydroprocessed in the hydroprocessor to produce a hydroprocessor effluent that can include a hydroprocessed gas oil.

    Process for C5+ hydrocarbon conversion
    6.
    发明授权
    Process for C5+ hydrocarbon conversion 有权

    公开(公告)号：US11591529B2

    公开(公告)日：2023-02-28

    申请号：US17281744

    申请日：2019-11-04

    Applicant: ExxonMobil Chemical Patents Inc.

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

    IPC: C10G69/00 ,  C10G65/00 ,  C10G9/36 ,  B01J19/24

    Abstract: In some examples, hydrocarbon feed and a diluent such as steam are mixed, and heated. A vapor phase product and a liquid phase product can be separated from the heated mixture. The liquid phase product can be hydroprocessed to produce a first hydroprocessed product. A pitch and one or more hydrocarbon products can be separated from the first hydroprocessed product. The pitch can be contacted with a diluent to produce a pitch-diluent mixture. The pitch-diluent mixture can be hydroprocessed to produce a second hydroprocessed product. A hydroprocessor heavy product and a utility fluid product can be separated from the second hydroprocessed product. The diluent can be or include at least a portion of the utility fluid product. The vapor phase product can be steam cracked to produce a steam cracker effluent. A tar product and a process gas that can include ethylene and propylene can be separated from the steam cracker effluent.

    Solvent Control for Centrifugation of Steam Cracked Tar
    7.
    发明申请
    Solvent Control for Centrifugation of Steam Cracked Tar 有权

    公开(公告)号：US20220033716A1

    公开(公告)日：2022-02-03

    申请号：US17298963

    申请日：2019-12-11

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： John S. Coleman ,  Kapil Kandel ,  Michael J. Clemmons ,  Teng Xu

    IPC: C10G31/10 ,  C10G9/36 ,  C10G21/14 ,  C10G69/06

    Abstract: Processes for preparing a low particulate liquid hydrocarbon product are provided and includes blending a tar stream containing particles with a fluid to produce a fluid-feed mixture containing tar, the particles, and the fluid, where the fluid-feed mixture contains about 30 wt % or greater of the fluid based on a combined weight of the tar stream and the fluid. The method also includes separating, e.g., by centrifuging, from the fluid-feed mixture a higher density portion and a lower density portion, where the lower density portion contains no more than 25 wt % of the particles in the fluid-feed mixture, based on the weight of the particles in the fluid-feed mixture.

    Self-sulfiding of guard reactor catalyst for solvent assisted tar conversion processes
    8.
    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.

    Process for C5+ Hydrocarbon Conversion
    9.
    发明申请
    Process for C5+ Hydrocarbon Conversion 有权

    公开(公告)号：US20210388275A1

    公开(公告)日：2021-12-16

    申请号：US17281744

    申请日：2019-11-04

    Applicant: ExxonMobil Chemical Patents Inc.

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

    IPC: C10G69/00 ,  B01J19/24

    Abstract: In some examples, hydrocarbon feed and a diluent such as steam are mixed, and heated. A vapor phase product and a liquid phase product can be separated from the heated mixture. The liquid phase product can be hydroprocessed to produce a first hydroprocessed product. A pitch and one or more hydrocarbon products can be separated from the first hydroprocessed product. The pitch can be contacted with a diluent to produce a pitch-diluent mixture. The pitch-diluent mixture can be hydroprocessed to produce a second hydroprocessed product. A hydroprocessor heavy product and a utility fluid product can be separated from the second hydroprocessed product. The diluent can be or include at least a portion of the utility fluid product. The vapor phase product can be steam cracked to produce a steam cracker effluent. A tar product and a process gas that can include ethylene and propylene can be separated from the steam cracker effluent.

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