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    Process for Catalytic Oxidative Dehydrogenation of Ethane to Ethylene in the Presence of Chlorine Intermediates
    1.
    发明申请
    Process for Catalytic Oxidative Dehydrogenation of Ethane to Ethylene in the Presence of Chlorine Intermediates 审中-公开

    公开(公告)号：US20190359546A1

    公开(公告)日：2019-11-28

    申请号：US16532056

    申请日：2019-08-05

    Applicant: Sabic Global Technologies, B.V.

    Inventor： Aghaddin MAMEDOV

    IPC: C07C5/48 ,  C07C11/04

    Abstract: A process for producing ethylene comprising: (a) reacting a reactant mixture in a reactor to yield a product mixture, wherein the reactor comprises a catalyst, wherein the reactant mixture comprises ethane, oxygen, and a chlorine intermediate precursor, wherein the product mixture comprises ethylene, unreacted ethane, carbon monoxide, and carbon dioxide, wherein the catalyst comprises a redox agent, an alkali metal, and a rare earth element; and (b) recovering at least a portion of the ethylene from the product mixture. The reacting in step (a) further comprises (i) contacting at least a portion of the chlorine intermediate precursor with the catalyst to form a chlorinated catalyst; (ii) allowing at least a portion of the chlorinated catalyst to generate a chlorine intermediate; and (iii) allowing at least a portion of the reactant mixture to react via the chlorine intermediate.

    A Process for Oxidative Conversion of Methane to Ethylene
    3.
    发明申请
    A Process for Oxidative Conversion of Methane to Ethylene 审中-公开

    公开(公告)号：US20190389788A1

    公开(公告)日：2019-12-26

    申请号：US16481790

    申请日：2018-01-29

    Applicant: Sabic Global Technologies, B.V.

    Inventor： Aghaddin MAMEDOV ,  David WEST ,  Vidya Sagar Reddy SARSANI ,  Wugeng LIANG

    IPC: C07C2/84 ,  C01B3/36

    Abstract: A process for producing ethylene and syngas comprising reacting, via OCM, first reactant mixture (CH4&O2) in first reaction zone comprising OCM catalyst to produce first product mixture comprising ethylene, ethane, hydrogen, CO2, CO, and unreacted methane; introducing second reactant mixture comprising first product mixture to second reaction zone excluding catalyst to produce second product mixture comprising ethylene, ethane, hydrogen, CO, CO2, and unreacted methane, wherein a common reactor comprises both the first and second reaction zones, wherein ethane of second reactant mixture undergoes cracking to ethylene, wherein CO2 of second reactant mixture undergoes hydrogenation to CO, and wherein an amount of ethylene in the second product mixture is greater than in the first product mixture; recovering methane stream, ethane stream, CO2 stream, ethylene stream, and syngas stream (CO&H2) from the second product mixture; and recycling the ethane stream and the carbon dioxide stream to second reaction zone.

    Oxidative Conversion of Methane to C2 Hydrocarbons on Oxide Catalyst with Feed Comprising Organic Chloride
    7.
    发明申请
    Oxidative Conversion of Methane to C2 Hydrocarbons on Oxide Catalyst with Feed Comprising Organic Chloride 审中-公开

    公开(公告)号：US20200247730A1

    公开(公告)日：2020-08-06

    申请号：US16773109

    申请日：2020-01-27

    Applicant: Sabic Global Technologies, B.V.

    Inventor： Aghaddin MAMEDOV ,  Pankaj GAUTAM ,  Hoang NGUYEN

    IPC: C07C2/84 ,  C07C11/04

    Abstract: A process for producing C2+ hydrocarbons comprising introducing a reactant mixture to an oxidative coupling of methane (OCM) reactor comprising an OCM catalyst composition; wherein the reactant mixture comprises CH4, O2, and a chlorine intermediate precursor; wherein the chlorine intermediate precursor is present in the reactant mixture from about 1 ppm to about 100 ppm, based on the total volume of the reactant mixture; allowing the reactant mixture to contact the OCM catalyst composition and react via an OCM reaction to form a product mixture comprising unreacted methane and C2+ hydrocarbons; wherein the process for producing C2+ hydrocarbons is characterized by improved performance in the presence of the chlorine intermediate precursor; recovering at least a portion of the product mixture from the OCM reactor; and recovering the C2+ hydrocarbons from the product mixture. The OCM reactor is operated under autothermal or isothermal conditions.

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