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    Systems and methods for renewable fuels
    2.
    发明授权
    Systems and methods for renewable fuels 有权

    公开(公告)号：US11981872B2

    公开(公告)日：2024-05-14

    申请号：US18210878

    申请日：2023-06-16

    Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

    Inventor： Xiaochun Xu ,  Gordon B. Mcgarvey ,  Vincent A. Brunet

    IPC: C10G47/20 ,  C10G67/00

    CPC classification number: C10G47/20 ,  C10G67/00 ,  C10G2300/1014 ,  C10G2300/30

    Abstract: This application relates to production of renewable fuels, including a method of producing renewable fuels. The method comprises hydrotreating a biofeedstock by contacting reactants comprising a combined feedstock and hydrogen with a hydrotreating catalyst to produce normal paraffins. The combined feedstock comprises a biofeedstock and an additional feedstock. The biofeedstock has about 10% or more of each of metals, phosphorous, and chlorophyll than the additional feedstock. The biofeedstock comprises the metals in an amount of about 300 parts per million (“ppm”) or less, the phosphorous in an amount of about 300 ppm or less, and the chlorophyll in an amount of about 50 ppm or less. The method further comprises isomerizing at least a portion of the normal paraffins to produce branched paraffins in an isomerization effluent.

    FCC CO-PROCESSING OF BIOMASS OIL
    5.
    发明申请
    FCC CO-PROCESSING OF BIOMASS OIL 有权

    公开(公告)号：US20230131866A1

    公开(公告)日：2023-04-27

    申请号：US17931560

    申请日：2022-09-13

    Applicant: ExxonMobil Technology and Engineering Company

    Inventor： Xiaochun Xu ,  Hyung Rae Kim ,  Chengrong Wang ,  Colin L. Beswick

    IPC: C10G1/06 ,  C10G11/18

    Abstract: Systems and methods are provided for improving product yields and/or product quality during co-processing of fast pyrolysis oil in a fluid catalytic cracking (FCC) reaction environment. The systems and methods can allow for co-processing of an increased amount of fast pyrolysis oil while reducing or minimizing coke production for a feedstock including fast pyrolysis oil and a conventional FCC feed. The reducing or minimizing of coke production can be achieved in part by adding a low molecular weight, non-ionic surfactant to the mixture of fast pyrolysis oil and conventional FCC feed.

    FCC CO-PROCESSING OF BIOMASS OIL WITH HYDROGEN RICH CO-FEED
    6.
    发明申请
    FCC CO-PROCESSING OF BIOMASS OIL WITH HYDROGEN RICH CO-FEED 有权

    公开(公告)号：US20220403253A1

    公开(公告)日：2022-12-22

    申请号：US17838406

    申请日：2022-06-13

    Applicant: ExxonMobil Technology and Engineering Company

    Inventor： Hyung Rae Kim ,  Jihad M. Dakka ,  Xiaochun Xu

    IPC: C10G3/00

    Abstract: Systems and methods are provided for increasing the yield of products generated during co-processing of biomass oil in a fluid catalytic cracking (FCC) system. The systems and methods can allow for increased yield by reducing or minimizing formation of carbon oxides, gas phase products, and/or coke yields during the co-processing. This can be achieved by adding a hydrogen-rich co-feed to the co-processing environment. Examples of hydrogen-rich co-feeds include high hydrogen content vacuum gas oil co-feed, high hydrogen content distillate co-feed, and/or high hydrogen content naphtha co-feed. Additionally or alternately, various types of fractions that contain a sufficient amount of hydrogen donor compounds can be used to reduce or minimize carbon oxide formation

    Ethanol Conversion Using FCC System
    10.
    发明申请
    Ethanol Conversion Using FCC System 有权

    公开(公告)号：US20250059449A1

    公开(公告)日：2025-02-20

    申请号：US18744973

    申请日：2024-06-17

    Applicant: ExxonMobil Technology and Engineering Company

    Inventor： Jihad M. Dakka ,  Arun K. Sharma ,  Xiaochun Xu ,  Richard C. Senior ,  Jason M. Golias

    IPC: C10G11/05 ,  C07C1/24 ,  C10G11/18

    Abstract: The present disclosure provides methods and systems for converting ethanol and cracking hydrocarbons into ethylene and at least cracked products. A method to convert ethanol and cracking hydrocarbons includes: introducing a hydrocarbon feed into a riser of a fluid catalytic cracking reactor such that hydrocarbons in the hydrocarbon feed reacts in the presence of one or more fluid catalytic cracking catalysts to produce at least cracked products; and introducing an ethanol feed into an upper one third of a stripper of the fluid catalytic cracking reactor such that the ethanol reacts in the presence of spent catalyst flowing downwardly from a separator section of the fluid catalytic cracking reactor to produce at least ethylene.

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