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    Processes for the preparation of an olefinic product
    1.
    发明授权
    Processes for the preparation of an olefinic product 有权

    公开(公告)号：US09902660B2

    公开(公告)日：2018-02-27

    申请号：US15103006

    申请日：2013-12-13

    申请人： SHELL OIL COMPANY

    发明人： Antonius Gijsbertus Johannes Kloth ,  Sivakumar Sadasivan Vijayakumari ,  Jeroen Van Westrenen

    IPC分类号： C07C1/20 ,  B01D17/04 ,  C10G3/00

    CPC分类号： C07C1/20 ,  B01D17/045 ,  C07C2529/00 ,  C07C2529/40 ,  C07C2529/70 ,  C10G3/42 ,  Y02P30/42 ,  C07C11/04 ,  C07C11/02 ,  C07C11/06

    摘要： The invention provides a process for the preparation of an olefinic product, the process comprising the steps of: (a) reacting an oxygenate feedstock, comprising oxygenate, in an oxygenate reaction zone in the presence of a catalyst comprising a molecular sieve, at a temperature in the range of from 350 to 1000° C., to produce a reaction effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the reaction effluent stream by means of an indirect heat exchange to provide a cooled reaction effluent stream at a temperature greater than the dew point temperature of reaction effluent stream; (c) passing the cooled reaction effluent stream into a quench tower and contacting the cooled reaction effluent stream with a first aqueous liquid in the presence of at least one set of quench tower internals, to produce a quench tower gaseous stream comprising the olefinic product and a quench tower liquid stream comprising condensed material; and (d) separating the quench tower liquid stream into a hydrocarbon quench tower liquid stream and an aqueous quench tower liquid stream in the presence of one or more coalescers.

    Integrating a methanol to olefin reaction system with a steam cracking system
    9.
    发明申请
    Integrating a methanol to olefin reaction system with a steam cracking system 审中-公开
    将甲醇与烯烃反应体系与蒸汽裂解系统结合

    公开(公告)号：US20050038304A1

    公开(公告)日：2005-02-17

    申请号：US10642074

    申请日：2003-08-15

    申请人： Cor Van Egmond ,  David Duhon ,  Jaimes Sher

    发明人： Cor Van Egmond ,  David Duhon ,  Jaimes Sher

    IPC分类号： C07C1/20 ,  C07C11/02 ,  C10G9/00 ,  C07C1/00

    CPC分类号： C07C11/02 ,  B01J2219/00006 ,  C07C1/20 ,  C07C2529/00 ,  C10G9/00 ,  Y02P30/42

    摘要： The present invention provides an integrated system for producing ethylene and propylene from an oxygenate to olefin (OTO) reaction system and a steam cracking system. In a preferred embodiment, at least a portion of an effluent stream from a steam cracking furnace is combined with at least a portion of an effluent stream from an OTO reaction system. Preferably the combined effluent stream is processed by one or more quench units, compression units, and/or fractionation columns. By integrating a steam cracking system with an OTO reaction system, equipment count can be reduced at a significant commercial savings. Compressor efficiency per pound of ethylene and propylene can also be advantageously increased over conventional steam cracking systems. Moreover, the amount of pollutants produced per pound of ethylene and propylene produced can be significantly reduced over the amount of pollutants produced per pound of ethylene and propylene produced in a steam cracking system.

    摘要翻译： 本发明提供了一种用于从含氧物到烯烃（OTO）反应系统和蒸汽裂解系统生产乙烯和丙烯的集成系统。 在优选的实施方案中，来自蒸汽裂解炉的至少一部分流出物流与来自OTO反应系统的至少一部分流出物流合并。 优选地，组合的流出物流由一个或多个骤冷单元，压缩单元和/或分馏塔进行处理。 通过将蒸汽裂解系统与OTO反应系统集成，可以显着降低设备数量。 与常规蒸汽裂解系统相比，每磅乙烯和丙烯的压缩机效率也可以有利地提高。 此外，生产的乙烯和丙烯每磅产生的污染物的量可以比蒸汽裂解系统中生产的每磅乙烯和丙烯产生的污染物量大大减少。