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    PROCESS FOR THE PRODUCTION OF ETHYLENE OXIDE
    1.
    发明公开
    PROCESS FOR THE PRODUCTION OF ETHYLENE OXIDE 审中-公开

    公开(公告)号：US20240025869A1

    公开(公告)日：2024-01-25

    申请号：US18254620

    申请日：2022-01-07

    Applicant: SHELL OIL COMPANY

    Inventor： John Robert LOCKEMEYER ,  Randall Clayton YEATES

    IPC: C07D301/03 ,  B01J21/04 ,  B01J35/00 ,  B01J35/10 ,  B01J23/68

    CPC classification number: C07D301/03 ,  B01J21/04 ,  B01J35/0006 ,  B01J35/1009 ,  B01J23/688

    Abstract: A process for the epoxidation of ethylene comprising: contacting an inlet feed gas comprising ethylene, oxygen and one or more reaction modifiers consisting of organic chlorides with an epoxidation catalyst comprising a carrier, and having silver, a rhenium promoter, and one or more alkali metal promoters deposited thereon; wherein the inlet feed gas has an overall catalystchloriding effectiveness value (Cleff) represented by the formula (I): wherein [MC], [EC], [EDC], and [VC] are the concentrations in ppmv of methyl chloride (MC), ethylchloride (EC), ethylene dichloride (EDC), and vinylchloride (VC), respectively, and [CH4], [C2H6] and [C2H4] are the concentrations in mole percent of methane, ethane, and ethylene, respectively, in the inlet feedgas; wherein at a cumulative ethylene oxide production cumEO1 of at least 0.2 kton ethylene oxide/m3 catalyst, said process is operating at a reaction temperature having a value T1 and with the inlet feed gas having an optimum overall catalyst chloriding effectiveness value of Cleff1 to produce ethylene oxide with an ethylene oxide production parameter at a value EO1; and characterised in that the carrier is a fluoride-mineralized alpha-alumina carrier and said process is subsequently operated such that at a cumulative ethylene oxide production cumEOx, wherein cumEOx is at least 0.6 kton ethylene oxide/m3 catalyst greater than cumEO1, the reaction temperature 5 has an increased value Tx to maintain said ethylene oxide production parameter at a value EO1 whilst the optimum overall catalyst chloriding effectiveness value of the inlet feed gas Cleffx is controlled such that the ratio of Cleffx/Cleff1 is in the range of from 0.8 to 1.2.








    Cl
    eff

    =


    (


    0.1
    *

    [
    MC
    ]


    +

    [
    EC
    ]

    +

    2
    *

    [
    EDC
    ]


    +

    [
    VC
    ]


    )


    (


    0.002
    *

    [

    CH
    4

    ]


    +

    [


    C
    2

    ⁢

    H
    6


    ]

    +

    0.01
    *

    [


    C
    2

    ⁢

    H
    4


    ]



    )






    (
    I
    )

    PROCESS FOR TREATING A CARRIER, A PROCESS FOR PREPARING A CATALYST, THE CATALYST, AND USE OF THE CATALYST
    2.
    发明申请
    PROCESS FOR TREATING A CARRIER, A PROCESS FOR PREPARING A CATALYST, THE CATALYST, AND USE OF THE CATALYST 有权
    处理载体的方法，制备催化剂，催化剂和催化剂的使用方法

    公开(公告)号：US20130289288A1

    公开(公告)日：2013-10-31

    申请号：US13931081

    申请日：2013-06-28

    Applicant: Shell Oil Company

    Inventor： John Robert LOCKEMEYER ,  Randall Clayton YEATES

    IPC: B01J23/68 ,  C07C213/00 ,  C07C29/00 ,  C07C41/02 ,  B01J23/50 ,  C07D301/04

    CPC classification number: B01J23/688 ,  B01J23/50 ,  B01J32/00 ,  B01J37/06 ,  C07C29/00 ,  C07C41/02 ,  C07C213/00 ,  C07D301/04 ,  C07D301/10

    Abstract: A process for treating a carrier, or a precursor thereof, to at least partly remove impurities from the carrier, or the precursor thereof, comprising: contacting the carrier, or the precursor thereof, with a treatment solution comprising a salt in a concentration of at most 0.05 molar, wherein the salt comprises a cation and an anion, and wherein the cation is selected from ammonium, phosphonium, organic cations and combinations thereof, and wherein the anion is selected from organic anions, inorganic carboxylates, oxyanions of elements from Groups IIIA through VIIA of the Periodic Table of Elements, and combinations thereof; and separating at least part of the treatment solution from the carrier, or the precursor thereof.

    Abstract translation: 一种用于处理载体或其前体至少部分地从载体或其前体除去杂质的方法，包括：使载体或其前体与包含浓度为 最多0.05摩尔，其中所述盐包含阳离子和阴离子，并且其中所述阳离子选自铵，鏻，有机阳离子及其组合，并且其中所述阴离子选自有机阴离子，无机羧酸盐，来自IIIA族元素的氧阴离子 通过元素周期表的VIIA及其组合; 以及将所述处理溶液的至少一部分与所述载体或其前体分离。

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