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    Processes for producing petrochemical products from crude oil
    1.
    发明授权
    Processes for producing petrochemical products from crude oil 有权

    公开(公告)号：US12227704B2

    公开(公告)日：2025-02-18

    申请号：US18052308

    申请日：2022-11-03

    Applicant: Saudi Arabian Oil Company

    Inventor： Md Ashraful Islam ,  Gopal Juttu ,  Abdennour Bourane

    IPC: C10G51/06

    Abstract: Processes for producing products from crude oil include separating the crude oil into at least a lesser boiling point fraction and a greater boiling point fraction and passing the fractions to a reactor system that includes a riser section and a downer section. An outer boundary of the downer section is defined by a first wall in a plane perpendicular to a central axis, and outer boundaries of the riser section are defined by the first wall and a second wall in the plane perpendicular to the central axis. In an alternate arrangement, an outer boundary of the riser section is defined by a first wall in a plane perpendicular to a central axis, and outer boundaries of the downer section are defined by the first wall and a second wall in the plane perpendicular to the central axis. The process includes cracking the lesser boiling point fraction in the riser section in the presence of a catalyst and cracking the greater boiling point fraction in the downer reactor in the presence of the catalyst. The process includes passing the catalyst from the riser to the downer, from the downer to a regenerator, and from the regenerator to the riser.

    Online coke removal in a heater pass
    4.
    发明授权
    Online coke removal in a heater pass 有权

    公开(公告)号：US10968399B2

    公开(公告)日：2021-04-06

    申请号：US15946623

    申请日：2018-04-05

    Applicant: CITGO PETROLEUM CORPORATION

    Inventor： Brent Mayo ,  John Curry ,  Darrell W. Gill

    IPC: C10G9/16 ,  C10G51/06 ,  C10G9/20 ,  C10G75/00

    Abstract: This disclosure provides methods for decoking tubular passes of crude oil heaters and processed hydrocarbon heaters. The method permits continued operation of an associated crude oil processing unit or a processed hydrocarbon processing unit receiving crude oil or processed hydrocarbons from the heater during the decoking operation. The decoking operation utilizes dry steam to remove coke from passes within the crude oil heater or processed hydrocarbon heater and dry steam to maintain balanced operation of the crude oil processing unit or processed hydrocarbon processing unit.

    ENHANCED LIGHT OLEFIN YIELD VIA STEAM CATALYTIC DOWNER PYROLYSIS OF HYDROCARBON FEEDSTOCK
    5.
    发明申请
    ENHANCED LIGHT OLEFIN YIELD VIA STEAM CATALYTIC DOWNER PYROLYSIS OF HYDROCARBON FEEDSTOCK 审中-公开

    公开(公告)号：US20180305623A1

    公开(公告)日：2018-10-25

    申请号：US15955328

    申请日：2018-04-17

    Applicant: SAUDI ARABIAN OIL COMPANY

    Inventor： Musaed Salem Al-Ghrami ,  Wei Xu ,  Aaron Chi Akah

    IPC: C10G11/20 ,  C10G11/18 ,  C10G51/06

    Abstract: Systems and methods for steam and catalytic cracking of a hydrocarbon inlet stream comprising hydrocarbons. Systems and methods can include a catalyst feed stream, where the catalyst feed stream comprises a fluid and a heterogeneous catalyst, the heterogeneous catalyst operable to catalyze cracking of the hydrocarbons on surfaces of the heterogeneous catalyst a steam feed stream, where the steam feed stream is operable to effect steam cracking of the hydrocarbons, and where the steam feed stream decreases coking of the heterogeneous catalyst; and a downflow reactor, where the downflow reactor is operable to accept and mix the hydrocarbon inlet stream, the catalyst feed stream, and the steam feed stream, where the downflow reactor is operable to produce light olefins by steam cracking and catalytic cracking, and where the downflow reactor is operable to allow the heterogeneous catalyst to flow downwardly by gravity.

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