Use of structured catalyst beds for preparing ethylene oxide
    4.
    发明授权
    Use of structured catalyst beds for preparing ethylene oxide 有权
    使用结构化催化剂床制备环氧乙烷

    公开(公告)号:US08580982B2

    公开(公告)日:2013-11-12

    申请号:US13376879

    申请日:2010-06-09

    IPC分类号: C07D301/03

    CPC分类号: C07D301/10

    摘要: The present invention relates to a process for preparing ethylene oxide by reaction of ethylene with oxygen in the presence of at least one silver-comprising catalyst, wherein the reaction takes place in a reactor which has a catalyst packed bed having at least two zones (i) and (ii) and the silver content of the catalyst in zone (i) is lower than the silver content of the catalyst in zone (ii). The catalyst packed bed preferably has a further zone (a) with which the reaction mixture comes into contact before the zones (i) and (ii). According to the invention, the silver content of the catalyst in the zone (a) is higher than the silver content of the catalyst in zone (i).

    摘要翻译: 本发明涉及通过乙烯与氧在至少一种含银催化剂存在下反应来制备环氧乙烷的方法,其中该反应在具有至少两个区域的催化剂填充床(i )和(ii),并且(i)区域中的催化剂的银含量低于区域(ii)中的催化剂的银含量。 催化剂填充床优选具有另外的区域(a),反应混合物在区域(i)和(ii)之前与其接触。 根据本发明,区域(a)中催化剂的银含量高于区域(i)中催化剂的银含量。

    USE OF STRUCTURED CATALYST BEDS FOR PREPARING ETHYLENE OXIDE
    5.
    发明申请
    USE OF STRUCTURED CATALYST BEDS FOR PREPARING ETHYLENE OXIDE 有权
    用于制备乙烯氧化物的结构化催化剂床的用途

    公开(公告)号:US20120077998A1

    公开(公告)日:2012-03-29

    申请号:US13376879

    申请日:2010-06-09

    IPC分类号: C07D301/10

    CPC分类号: C07D301/10

    摘要: The present invention relates to a process for preparing ethylene oxide by reaction of ethylene with oxygen in the presence of at least one silver-comprising catalyst, wherein the reaction takes place in a reactor which has a catalyst packed bed having at least two zones (i) and (ii) and the silver content of the catalyst in zone (i) is lower than the silver content of the catalyst in zone (ii). The catalyst packed bed preferably has a further zone (a) with which the reaction mixture comes into contact before the zones (i) and (ii). According to the invention, the silver content of the catalyst in the zone (a) is higher than the silver content of the catalyst in zone (i).

    摘要翻译: 本发明涉及通过乙烯与氧在至少一种含银催化剂存在下反应来制备环氧乙烷的方法,其中该反应在具有至少两个区域的催化剂填充床(i )和(ii),并且(i)区域中的催化剂的银含量低于区域(ii)中的催化剂的银含量。 催化剂填充床优选具有另外的区域(a),反应混合物在区域(i)和(ii)之前与其接触。 根据本发明,区域(a)中催化剂的银含量高于区域(i)中催化剂的银含量。

    PROCESS FOR REMOVING CARBON DIOXIDE (C02) FROM A CYCLE GAS SYSTEM
    6.
    发明申请
    PROCESS FOR REMOVING CARBON DIOXIDE (C02) FROM A CYCLE GAS SYSTEM 有权
    从循环气体系统中除去二氧化碳(CO 2)的方法

    公开(公告)号:US20110283885A1

    公开(公告)日:2011-11-24

    申请号:US13109945

    申请日:2011-05-17

    IPC分类号: B01D53/14

    摘要: A process for removing carbon dioxide (CO2) by means of an absorption medium from a cycle gas system, wherein the CO2 occurs within a process in which, in the gas phase, ethylene is oxidized by oxygen (O2) to ethylene oxide (EO) in the presence of a catalyst, in which, as by product, CO2 is generated, by using as absorption medium an aqueous solution of one or more amines, wherein, for further purification of the cycle gas stream obtained downstream of the CO2 absorption step, this cycle gas stream is brought into intimate contact with water to which no mineral acid and no higher glycol was added.

    摘要翻译: 一种通过来自循环气体系统的吸收介质去除二氧化碳(CO 2)的方法,其中CO 2发生在气相中乙烯被氧(O 2)氧化成环氧乙烷(EO)的过程中, 在催化剂的存在下,其中通过使用作为吸收介质的一种或多种胺的水溶液,作为副产物产生CO 2,其中为了进一步纯化在CO 2吸收步骤下游获得的循环气流, 该循环气流与不添加无机酸和不含高级二醇的水紧密接触。

    PROCESS FOR HEAT INTEGRATION BY MEANS OF A REFRIGERATION SYSTEM
    9.
    发明申请
    PROCESS FOR HEAT INTEGRATION BY MEANS OF A REFRIGERATION SYSTEM 有权
    通过制冷系统进行热合成的方法

    公开(公告)号:US20120085106A1

    公开(公告)日:2012-04-12

    申请号:US13268266

    申请日:2011-10-07

    IPC分类号: F25B27/00

    CPC分类号: F25B27/02 Y02A30/274

    摘要: A process for heat integration in engineering processes in which, in a heat carrier circuit (10), a heat carrier medium takes up heat from a first process stream (14) in a first heat exchanger (12) and releases it to a refrigeration system (30), in additionin a refrigerant circuit (20) a refrigerant is cooled in the refrigeration system (30) and the refrigerant takes up heat from a second process stream (24) in a second heat exchanger (22) ora second process stream (24) is cooled in the refrigeration system (30), wherein the first process stream (14) is a vapor stream from a thermal separation apparatus, and the temperature of the heat carrier medium is increased by heat supply between egress from the first heat exchanger (12) and ingress into the refrigeration system (30).

    摘要翻译: 一种在工程过程中热集成的方法,其中在热载体回路(10)中,热载体介质从第一热交换器(12)中的第一工艺流(14)吸收热量并将其释放到制冷系统 (30),另外在制冷剂回路(20)中,制冷剂在制冷系统(30)中被冷却,并且制冷剂在第二热交换器(22)或第二过程中从第二工艺物流(24)吸收热量 流(24)在制冷系统(30)中冷却,其中第一工艺流(14)是来自热分离装置的蒸汽流,并且热载体介质的温度通过来自第一 热交换器(12)并进入制冷系统(30)。