Process for preparing an alkene
    53.
    发明授权
    Process for preparing an alkene 有权
    一种用于制备烯烃的过程

    公开(公告)号:EP2539304B1

    公开(公告)日:2014-01-08

    申请号:EP11704826.4

    申请日:2011-02-10

    Applicant: BP P.L.C.

    Abstract: A process for the preparation of an alkene from an oxygenate comprising contacting a reactant feedstream comprising at least one oxygenate reactant and water with a supported heteropolyacid catalyst at a temperature of at least 170° C., wherein the process is initiated using a start-up procedure comprising the following steps: (i) heating the supported heteropolyacid catalyst to a temperature of at least 220° C.; (ii) maintaining the heat-treated supported heteropolyacid catalyst of step (i) at a temperature of at least 220° C. for a time sufficient to remove bound water from the heteropolyacid component of the supported heteropolyacid catalyst; (iii) under an anhydrous atmosphere, reducing the temperature of the heat-treated supported heteropolyacid catalyst of step (ii) to a temperature below 220° C.; and (iv) contacting the supported heteropolyacid catalyst of step (iii) with the reactant feedstream at a temperature of at least 170° C.

    PROCESS FOR PREPARING AN ALKENE
    55.
    发明公开
    PROCESS FOR PREPARING AN ALKENE 有权
    一种用于制备烯烃的过程

    公开(公告)号:EP2539304A1

    公开(公告)日:2013-01-02

    申请号:EP11704826.4

    申请日:2011-02-10

    Applicant: BP P.L.C.

    Abstract: A process for the preparation of an alkene from an oxygenate comprising contacting a reactant feedstream comprising at least one oxygenate reactant and water with a supported heteropolyacid catalyst at a temperature of at least 170° C., wherein the process is initiated using a start-up procedure comprising the following steps: (i) heating the supported heteropolyacid catalyst to a temperature of at least 220° C.; (ii) maintaining the heat-treated supported heteropolyacid catalyst of step (i) at a temperature of at least 220° C. for a time sufficient to remove bound water from the heteropolyacid component of the supported heteropolyacid catalyst; (iii) under an anhydrous atmosphere, reducing the temperature of the heat-treated supported heteropolyacid catalyst of step (ii) to a temperature below 220° C.; and (iv) contacting the supported heteropolyacid catalyst of step (iii) with the reactant feedstream at a temperature of at least 170° C.

    PROCESS FOR PREPARING ETHENE
    56.
    发明授权
    PROCESS FOR PREPARING ETHENE 有权
    用于生产ETHEN

    公开(公告)号:EP2200953B1

    公开(公告)日:2011-06-29

    申请号:EP08806546.1

    申请日:2008-10-08

    Applicant: BP P.L.C.

    CPC classification number: C07C1/20 C07C2523/30 Y02P20/52 Y02P30/42 C07C11/04

    Abstract: A process for the production of ethene by the vapour phased chemical dehydration of a feed comprising ethanol, water and ethoxyethane in a reactor at elevated temperature and pressure in the presence of a bed of catalyst comprising a supported heteropolytungstic acid characterised in that the reactor is maintained or configured so that it operates in a regime which satisfies the following parameters: 0.05

    Process for purifying ethylene
    57.
    发明公开
    Process for purifying ethylene 审中-公开
    Verfahren zur Reinigung von Ethylen

    公开(公告)号:EP2287145A1

    公开(公告)日:2011-02-23

    申请号:EP09251984.2

    申请日:2009-08-12

    Applicant: BP p.l.c.

    CPC classification number: C07C7/11 C07C11/04

    Abstract: The present invention relates to a process for purifying ethylene from a feedstock comprising ethylene and water.
    More particularly, the present invention relates to a process for purifying ethylene from a feedstock comprising ethylene, diethyl ether and water.

    Abstract translation: 本发明涉及从包含乙烯和水的原料中纯化乙烯的方法。 更具体地说,本发明涉及从包含乙烯,乙醚和水的原料中纯化乙烯的方法。

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