PROCESS FOR THE PREPARATION OF AN OLEFIN PRODUCT
    3.
    发明申请
    PROCESS FOR THE PREPARATION OF AN OLEFIN PRODUCT 审中-公开
    制备烯烃产品的方法

    公开(公告)号:US20150148574A1

    公开(公告)日:2015-05-28

    申请号:US14368516

    申请日:2012-12-20

    Abstract: A process for the preparation of an olefin product, which process comprises the steps of: a) converting an oxygenate feedstock in an oxygenate-to-olefins conversion system, comprising a reaction zone in which an oxygenate feedstock is contacted with an oxygenate conversion catalyst under oxygenate conversion conditions, to obtain a conversion effluent comprising olefins and paraffins; b) separating at least a portion of the paraffins from the conversion effluent to form a paraffin stream; and c) recycling at least a portion of the paraffin stream to step a).

    Abstract translation: 一种制备烯烃产物的方法,该方法包括以下步骤:a)将含氧化合物 - 烯烃转化体系中的含氧化合物原料转化,其包含其中含氧化合物原料与含氧化合物转化催化剂接触的反应区, 含氧化合物转化条件,以获得包含烯烃和链烷烃的转化流出物; b)将至少一部分链烷烃与转化流出物分离以形成链烷烃流; 和c)将至少一部分石蜡流循环至步骤a)。

    Process for preparing lower olefins from an oxygenate
    4.
    发明授权
    Process for preparing lower olefins from an oxygenate 有权
    从含氧化合物制备低级烯烃的方法

    公开(公告)号:US08946496B2

    公开(公告)日:2015-02-03

    申请号:US13727869

    申请日:2012-12-27

    Abstract: The invention relates to a process for preparing lower olefins from an oxygenate, the process comprising: subjecting C4 hydrocarbons obtained in an oxygenate-to-olefins conversion step to extractive distillation to an etherification step to convert isobutene into an alkyl tertiary butyl ether to obtain an isobutene-depleted C4 hydrocarbon stream and alkyl tertiary-butyl ether; subjecting the isobutene-depleted C4 hydrocarbon stream to extractive distillation to obtain a stream enriched in unsaturated C4 hydrocarbons and a stream enriched in saturated C4 hydrocarbons; and recycling at least part of the stream enriched in unsaturated C4 hydrocarbons and/or at least part of the alkyl tertiary-butyl ether to the oxygenate-to-olefins conversion step.

    Abstract translation: 本发明涉及一种从含氧化合物制备低级烯烃的方法,该方法包括:将在含氧化合物 - 烯烃转化步骤中获得的C4烃进行萃取蒸馏至醚化步骤,将异丁烯转化为烷基叔丁基醚,得到 异丁烯耗尽的C4烃流和烷基叔丁基醚; 使异丁烯贫化的C4烃流进行萃取蒸馏以获得富含不饱和C4烃的流和富含饱和C 4烃的流; 以及将富含不饱和C4烃和/或至少部分烷基叔丁基醚的至少一部分物流循环到含氧化合物 - 烯烃转化步骤。

    Process for preparing an epoxide from an oxygenate
    5.
    发明授权
    Process for preparing an epoxide from an oxygenate 有权
    从含氧化合物制备环氧化物的方法

    公开(公告)号:US08822710B2

    公开(公告)日:2014-09-02

    申请号:US13653116

    申请日:2012-10-16

    CPC classification number: C07D301/19 Y02P20/125

    Abstract: The invention relates to an integrated process for preparing an epoxide from an oxygenate, wherein the production of a lower olefin from the oxygenate and the subsequent epoxidation of the lower olefin is combined and wherein isobutene, a by-product of the lower olefin production, is converted into a hydroperoxide that is used for the conversion of the lower olefin into the corresponding epoxide.

    Abstract translation: 本发明涉及从含氧化合物制备环氧化物的综合方法,其中从含氧化合物制备低级烯烃和随后的低级烯烃环氧化合并,其中异丁烯是较低烯烃生产的副产物是 转化为用于将低级烯烃转化成相应的环氧化物的氢过氧化物。

    Process for preparing an epoxide from an oxygenate
    6.
    发明授权
    Process for preparing an epoxide from an oxygenate 有权
    从含氧化合物制备环氧化物的方法

    公开(公告)号:US08822709B2

    公开(公告)日:2014-09-02

    申请号:US13653135

    申请日:2012-10-16

    CPC classification number: C07D301/19 Y02P20/125

    Abstract: The invention relates to an integrated process for preparing an epoxide from an oxygenate, wherein the oxygenate is converted into a lower olefin and the lower olefin is subsequently epoxidised, and wherein isobutane obtained after hydrogenation and subsequent normal/iso separation of C4 hydrocarbons obtained as by-product of the oxygenate conversion, is converted into a hydroperoxide that is used for the conversion of the lower olefin into the corresponding epoxide.

    Abstract translation: 本发明涉及一种从含氧化合物制备环氧化物的综合方法,其中将含氧化合物转化为低级烯烃,随后将低级烯烃环氧化,并且其中在氢化之后获得的异丁烷和随后的正如/ - 含氧化合物转化率的产物转化成用于将低级烯烃转化成相应的环氧化物的氢过氧化物。

    Integrated process for the preparation of an aromatic product
    7.
    发明授权
    Integrated process for the preparation of an aromatic product 有权
    用于制备芳香族产品的综合方法

    公开(公告)号:US09221726B2

    公开(公告)日:2015-12-29

    申请号:US13727778

    申请日:2012-12-27

    Abstract: A process preparing an aromatic product comprising xylene, the process comprising: a) cracking a feedstock to obtain a cracker effluent comprising olefins and aromatics; b) converting an oxygenate feedstock in an oxygenate-to-olefins conversion system, comprising a reaction zone in which an oxygenate feedstock is contacted with a catalyst to obtain a conversion effluent comprising benzene, toluene, xylene and olefins; c) combining at least part of the cracker effluent and at least part of the conversion effluent to obtain a combined effluent, the combined effluent comprising aromatics; d) separating at least a portion of the benzene and/or toluene from the combined effluent to form a benzene and/or toluene stream; e) separating the olefins from the combined effluent; f) separating xylene from the combined effluent to form a xylene stream; and g) recycling at least a part of the benzene and/or toluene streams as recycled aromatics to step b).

    Abstract translation: 一种制备包含二甲苯的芳族产物的方法,该方法包括:a)裂化原料以获得包含烯烃和芳族化合物的裂化器流出物; b)转化含氧化合物至烯烃转化体系中的含氧化合物原料,其包含其中含氧化合物原料与催化剂接触的反应区,以获得包含苯,甲苯,二甲苯和烯烃的转化流出物; c)将至少部分裂化器流出物和至少部分转化流出物混合以获得组合的流出物,所述组合流出物包含芳族化合物; d)将苯和/或甲苯的至少一部分与合并的流出物分离以形成苯和/或甲苯料流; e)从合并的流出物中分离烯烃; f)从合并的流出物中分离二甲苯以形成二甲苯流; 和g)将至少一部分苯和/或甲苯物流作为再循环芳烃回收至步骤b)。

    Process for preparing lower olefins from an oxygenate
    9.
    发明授权
    Process for preparing lower olefins from an oxygenate 有权
    从含氧化合物制备低级烯烃的方法

    公开(公告)号:US08889941B2

    公开(公告)日:2014-11-18

    申请号:US13727877

    申请日:2012-12-27

    Abstract: The invention relates to a process for preparing lower olefins from an oxygenate, the process comprising subjecting C4 hydrocarbons obtained in an oxygenate-to-olefins conversion step to extractive distillation to obtain a stream enriched in unsaturated C4 hydrocarbons comprising isobutene and n-butenes, and a stream enriched in saturated C4 hydrocarbons; converting the isobutene in the stream enriched in unsaturated C4 hydrocarbons into an alkyl tertiary butyl ether to obtain an isobutene-depleted unsaturated C4 hydrocarbon stream and alkyl tertiary-butyl ether; and recycling at least part of the isobutene-depleted unsaturated C4 hydrocarbon stream and/or at least part of the alkyl tertiary-butyl ether, optionally after conversion into tertiary butanol and/or isobutene, to the oxygenate-to-olefins conversion step.

    Abstract translation: 本发明涉及从含氧化合物制备低级烯烃的方法,该方法包括将在含氧化合物 - 烯烃转化步骤中获得的C4烃进行萃取蒸馏以获得富含不饱和C 4烃的物流,其包含异丁烯和正丁烯,以及 富含饱和C4烃的物流; 将富含不饱和C4烃的物流中的异丁烯转化为烷基叔丁基醚,得到异丁烯贫化的不饱和C 4烃物流和烷基叔丁基醚; 并且任选地在转化成叔丁醇和/或异丁烯之后将至少部分异丁烯贫化的不饱和C4烃流和/或至少部分烷基叔丁基醚再循环到含氧化合物 - 烯烃转化步骤中。

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