Method and device for producing lower olefins from oxygenates
    5.
    发明授权
    Method and device for producing lower olefins from oxygenates 有权
    从含氧化合物生产低级烯烃的方法和装置

    公开(公告)号:US07923591B2

    公开(公告)日:2011-04-12

    申请号:US11718037

    申请日:2005-10-27

    IPC分类号: C07C1/24

    摘要: Method and device for manufacturing at least one low olefin from an oxygenate-containing first reaction mixture (11) through conversion by a catalyst (20) to an olefin and paraffin-containing second reaction mixture (21) where the second reaction mixture (21) is flowed through a separation system (300), in which one at least one low olefin-containing first product stream (31) and at least one paraffin-enriched fraction (321) is extracted and where the remaining product stream (322) is at least partially recirculated to the catalyst (20).

    摘要翻译: 用于通过由催化剂(20)转化成烯烃和含石蜡的第二反应混合物(21)从含氧化合物的第一反应混合物(11)制备至少一种低级烯烃的方法和装置,其中第二反应混合物(21) 流过分离系统(300),其中提取至少一种含低级烯烃的第一产物流(31)和至少一种富含链烷烃的级分(321),其中剩余的产物流(322)处于 最少部分地再循环到催化剂(20)中。

    PROCESS FOR PREPARING C2 TO C4 OLEFINS FROM A FEED STREAM COMPRISING OXYGENATES AND STEAM
    6.
    发明申请
    PROCESS FOR PREPARING C2 TO C4 OLEFINS FROM A FEED STREAM COMPRISING OXYGENATES AND STEAM 有权
    从包含氧化剂和蒸汽的进料流中制备C2至C4烯烃的方法

    公开(公告)号:US20100234655A1

    公开(公告)日:2010-09-16

    申请号:US11909629

    申请日:2006-02-28

    IPC分类号: C07C1/00

    摘要: In a process for the preparation of C2- to C4-olefins, a feed stream comprising oxygenates and steam is passed through at least one fixed-bed zone comprising zeolite catalyst, where the oxygenates are converted catalytically into olefins with high selectivity for lower olefins, and the reaction mixture leaving the fixed-bed zone is separated into a first product stream comprising C2- to C3-olefins and inert gas components, at least one second product stream comprising C4+-olefins, and a third product stream consisting of aqueous phase. In order to improve the yield of lower olefins, the aim is to regulate the temperature of the catalytic reaction in accordance with a target temperature value in the range from 440 to 520° C. specified for the reaction mixture exiting the fixed-bed zone by means of a supplementary stream consisting of olefins and inert gas components fed into the feed stream.

    摘要翻译: 在制备C 2 -C 4烯烃的方法中,包含含氧化合物和蒸汽的进料流通过包含沸石催化剂的至少一个固定床区域,其中含氧化合物被催化转化成烯烃,对低级烯烃具有高选择性, 离开固定床区的反应混合物被分离成包含C 2 -C 3烯烃和惰性气体组分的第一产物流,至少一种包含C4 + - 烯烃的第二产物流和由水相组成的第三产物流。 为了提高低级烯烃的产率,目的是根据对从离开固定床区域的反应混合物规定的目标温度值在440-520℃范围内调节催化反应的温度 由进料流中的烯烃和惰性气体组分组成的辅助料流的方法。

    Method for production propylene from a flow containing c4 to c8 olefins
    9.
    发明申请
    Method for production propylene from a flow containing c4 to c8 olefins 有权
    从含有c4至c8烯烃的流程生产丙烯的方法

    公开(公告)号:US20050234282A1

    公开(公告)日:2005-10-20

    申请号:US10522498

    申请日:2003-06-05

    摘要: In a method for the production of propylene, a charge stream containing C4 to C6 olefins is evaporated, superheated, mixed with hot water vapor, the olefins vapor mixture converted on a zeolite catalyst, the reaction mixture formed thereby cooled, and then partially condensed. In order to increase the yield of propylene, the gaseous phase containing ethylene, propylene, C4 to C8 olefins, and additional hydrocarbons that is accumulated during the partial condensation is compressed, the gaseous and liquid phase containing propylene, ethylene, and other light hydrocarbons that exit from the compression step is separated into a gaseous phase containing propylene, ethylene, and other light hydrocarbons and a liquid phase containing C4+ olefins, and the liquid phase is separated into a fraction containing C4 to C6 olefins and a fraction containing C7+ olefins.

    摘要翻译: 在制备丙烯的方法中,将含有C 4 -C 6烯烃的电荷流蒸发,过热,与热水蒸气混合,将烯烃蒸气混合物转化为 沸石催化剂,由此形成的反应混合物冷却,然后部分冷凝。 为了提高丙烯的产率,含有乙烯,丙烯,C 4 -C 8烯烃的气相和在部分冷凝期间积聚的其它烃被压缩 含有丙烯,乙烯和从压缩步骤出来的其它轻烃的气相和液相被分离成含有丙烯,乙烯和其它轻质烃的气相和含有C 4 +烯烃,并将液相分离成含有C 4 O 6至C 6 O 6烯烃的馏分和含有C 7+烯烃的级分。

    Method and system for producing low-oxygenate OLEFIN flows
    10.
    发明授权
    Method and system for producing low-oxygenate OLEFIN flows 有权
    生产低氧含量OLEFIN流的方法和系统

    公开(公告)号:US09505684B2

    公开(公告)日:2016-11-29

    申请号:US13697825

    申请日:2011-04-21

    IPC分类号: C07C1/22 C07C7/04 B01D3/00

    CPC分类号: C07C7/04 B01D3/00 C07C11/02

    摘要: A process and a plant for producing an olefin stream from a hydrocarbon mixture feed stream, wherein the olefin stream is depleted as regards its content of oxygen-containing organic compounds (oxygenates) as compared to the feed stream. The hydrocarbon mixture feed stream is charged to a separation column operated by a thermal separation process, for example to a distillation column, wherein a material stream enriched in oxygenates is withdrawn via a side outlet and removed from the process. The process according to the invention is particularly useful for processing the product streams obtained in the olefin synthesis by an OTO process.

    摘要翻译: 一种用于从烃混合物进料流中生产烯烃流的方法和设备,其中与进料流相比,烯烃流的含量与含氧有机化合物(含氧化合物)的含量相同。 将烃混合物进料流加入到通过热分离过程操作的分离塔中,例如加入到蒸馏塔中,其中富含含氧化合物的物料流通过侧出口排出并从该方法中除去。 根据本发明的方法特别适用于通过OTO方法处理在烯烃合成中获得的产物流。