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    POLYOLEFIN COMPOSITIONS FEATURING IN SITU BLENDING OF AN OIL EXTENSION
    1.
    发明申请
    POLYOLEFIN COMPOSITIONS FEATURING IN SITU BLENDING OF AN OIL EXTENSION 有权

    公开(公告)号：US20250101156A1

    公开(公告)日：2025-03-27

    申请号：US18975725

    申请日：2024-12-10

    Applicant: ExxonMobil Technology and Engineering Company

    Inventor： Peijun Jiang

    IPC: C08F210/18 ,  C08F4/64 ,  C08F4/6592 ,  C08F210/16

    Abstract: High molecular weight elastomers, such as ethylene-propylene-diene monomer (EPDM) polymers, are conventionally formulated with a post-polymerization oil extension to mitigate their high Mooney viscosity. Post-polymerization oil extension adds to processing costs and precludes use of polymerization facilities lacking oil extension capabilities. A low molecular weight polymer may be co-produced with a high molecular weight elastomer containing the same monomers, where the low molecular weight polymer may function in place of conventional oil extension. Polymerization methods may form a polyolefin blend comprising first and second polyolefins having a bimodal molecular weight distribution.

    Processes for Making Propylene-Based Copolymers Having Broad CDs and MWDs
    2.
    发明申请
    Processes for Making Propylene-Based Copolymers Having Broad CDs and MWDs 有权

    公开(公告)号：US20250101149A1

    公开(公告)日：2025-03-27

    申请号：US18717135

    申请日：2022-12-14

    Applicant: Exxonmobil Technology and Engineering Company

    Inventor： Stacy Jordahl ,  Jun Shi ,  Rong Ma ,  Antonios K. Doufas ,  Narayanaswami Dharmarajan

    IPC: C08F10/06

    Abstract: Processes for making propylene-based copolymers having broad molecular weight distributions and broad comonomer distributions using a single tubular reactor. Processes for making a propylene-based copolymer can include introducing propylene and at least one other olefin comonomer to a tubular reactor to produce a propylene-based copolymer having a broad comonomer distribution, a Mw of about 10 kg/mol to about 2.000 kg/mol, and a MWD of about 2.0 to about 10.0. The tubular reactor can include one or more heat exchanger elements, preferably a spiral heat exchanger. Propylene-based copolymer compositions can include propylene derived units and at least one other comonomer derived units, wherein the copolymer compositions have a broad comonomer distribution, a Mw of about 10 kg/mol to about 2.000 kg/mol, and a MWD of about 2.0 to about 10.0. Such compositions can have broad orthogonal comonomer distributions.

    FCC CO-PROCESSING OF BIOMASS OIL WITH HYDROGEN RICH CO-FEED
    3.
    发明申请
    FCC CO-PROCESSING OF BIOMASS OIL WITH HYDROGEN RICH CO-FEED 有权

    公开(公告)号：US20250092317A1

    公开(公告)日：2025-03-20

    申请号：US18965321

    申请日：2024-12-02

    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
    5.
    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.

    POLYAMINE SORBENTS ON AMORPHOUS HIGH PORE VOLUME SUPPORTS
    7.
    发明申请
    POLYAMINE SORBENTS ON AMORPHOUS HIGH PORE VOLUME SUPPORTS 有权

    公开(公告)号：US20250033026A1

    公开(公告)日：2025-01-30

    申请号：US18784261

    申请日：2024-07-25

    Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

    Inventor： Scott WEIGEL ,  Wesley SATTLER ,  Allen BURTON ,  Keith HAJKOWSKI ,  Ryan DUGAN ,  Aaron PETERS

    IPC: B01J20/26 ,  B01J20/32

    Abstract: Amorphous silica-alumina support materials are provided that can serve as supports for polyamines. The silica-alumina support materials have a combination of properties that unexpectedly allow supported polyamines to retain an increased or maximized amount of CO2 sorption capacity after incorporation of substantial amounts of the polyamine on the support material. This combination of properties can include having a high pore volume, a high ratio of mesopore volume to micropore volume, and a sufficiently high acidity. The ability to allow supported amine sorbents to retain additional CO2 sorption capacity is unexpected. Additionally, the relationship between having sufficiently high acidity and providing improved sorption capacity for a supported amine material is unexpected.

    Palladium Catalyst Systems For Reforming In Cyclic Flow Reactors
    9.
    发明申请
    Palladium Catalyst Systems For Reforming In Cyclic Flow Reactors 有权

    公开(公告)号：US20250025866A1

    公开(公告)日：2025-01-23

    申请号：US18907836

    申请日：2024-10-07

    Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

    Inventor： Keith R. HAJKOWSKI ,  Wesley SATTLER ,  Michele A. WARREN

    IPC: B01J35/00 ,  B01J21/04 ,  B01J23/44 ,  B01J23/46 ,  B01J23/755 ,  B01J23/96 ,  B01J35/57 ,  B01J37/00 ,  B01J38/12 ,  C01B3/40

    Abstract: Palladium-based catalyst systems are provided for reforming of hydrocarbons, along with methods for using such catalyst systems. The catalyst systems can be deposited or otherwise coated on a surface or structure, such as a monolith, to achieve improved activity and/or structural stability. It has been discovered that loss of catalytic activity for reforming over time can be reduced or minimized for palladium-based catalyst system by operating the reactor/performing a reaction cycle so that the portion of the reaction environment containing the palladium-based catalyst system is not exposed to oxidizing conditions at temperatures between 600° C. and 900° C. Optionally, the reactor can also be operated/the reaction cycle can also be designed so that during a reforming cycle, the peak temperature in the portion of the reaction environment containing the palladium-based catalyst system is 1300° C. or less.

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