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    EPOXIDATION PROCESS
    11.
    发明申请
    EPOXIDATION PROCESS 有权
    环氧化工艺

    公开(公告)号：US20150175565A1

    公开(公告)日：2015-06-25

    申请号：US14578803

    申请日：2014-12-22

    Applicant: Scientific Design Company, Inc.

    Inventor： Andrew D. Schmitz ,  William Crudge

    IPC: C07D301/10

    CPC classification number: C07D301/10

    Abstract: A method for the epoxidation of an olefin comprising reacting a feed gas composition containing an olefin, oxygen, and a halocarbon moderator having a first moderator concentration M1 in the presence of an epoxidation catalyst at a first temperature T1; increasing the first temperature to a second temperature T2; and increasing the first moderator concentration to a second moderator concentration M2, wherein the second moderator concentration is defined by: M2=M1(1+r)T2−T1 wherein the temperature has the units of degrees Celsius, and r is a constant factor which is in the range of from 0.001% to 100%.

    Abstract translation: 一种烯烃的环氧化方法，包括在环氧化催化剂的存在下，在第一温度T1下使包含烯烃，氧和具有第一缓和剂浓度M1的卤化碳慢化剂的进料气体组合物反应; 将第一温度升高到第二温度T2; 并且将第一减速剂浓度增加到第二减速剂浓度M2，其中第二减速剂浓度由以下定义：M2 = M1（1 + r）T2-T1其中温度具有摄氏度的单位，r是常数因子 在0.001％至100％的范围内。

    Zinc-promoted catalysts for epoxidation of ethylene
    12.
    发明授权
    Zinc-promoted catalysts for epoxidation of ethylene 有权
    锌促进的乙烯环氧化催化剂

    公开(公告)号：US08975424B1

    公开(公告)日：2015-03-10

    申请号：US14143684

    申请日：2013-12-30

    Applicant: Scientific Design Company, Inc.

    Inventor： Wojciech Suchanek ,  Andrzej Rokicki

    IPC: C07D301/10 ,  B01J23/66

    CPC classification number: B01J23/66 ,  B01J23/688 ,  C07D301/10

    Abstract: A silver-based ethylene oxide catalyst is provided that has enhanced stability. The enhanced stability is obtained in the present invention by providing a silver-based ethylene oxide catalyst that includes from 100 ppm to 1000 ppm of zinc, and from greater than 450 ppm to less than 800 ppm of cesium. Zinc and cesium are promoters that are introduced to a finished carrier either prior to, coincidentally with, or subsequent to the deposition of the silver. The silver-based ethylene oxide catalyst can be used in the epoxidation of ethylene to ethylene oxide.

    Abstract translation: 提供了具有增强的稳定性的银基环氧乙烷催化剂。 通过提供包含100ppm至1000ppm锌以及大于450ppm至小于800ppm的铯的银基环氧乙烷催化剂，在本发明中获得了增强的稳定性。 锌和铯是在银沉积之前，巧合地或之后引入成品载体的促进剂。 银基环氧乙烷催化剂可用于乙烯至环氧乙烷的环氧化。

    METHOD FOR MAKING A HIGHLY SELECTIVE ETHYLENE OXIDE CATALYST
    13.
    发明申请
    METHOD FOR MAKING A HIGHLY SELECTIVE ETHYLENE OXIDE CATALYST 审中-公开
    制备高选择性乙烯氧化物催化剂的方法

    公开(公告)号：US20150057150A1

    公开(公告)日：2015-02-26

    申请号：US14537430

    申请日：2014-11-10

    Applicant: Scientific Design Company, Inc.

    Inventor： Nabil Rizkalla ,  Andrzej Rokicki

    IPC: B01J23/68

    CPC classification number: B01J23/688 ,  B01J21/04 ,  B01J23/66 ,  B01J37/0201 ,  B01J37/08 ,  C07D301/08 ,  C07D301/10 ,  Y02P20/52

    Abstract: A process for the preparation of a catalyst useful for the vapor phase production of ethylene oxide from ethylene and oxygen comprising providing a catalyst precursor comprising an inert support having a catalytically effective amount of a silver containing compound, a promoting amount of an alkali metal containing compound, and a promoting amount of a transition metal containing compound disposed thereon; calcining the catalyst precursor to convert the silver in the silver containing compound to metallic silver by heating the catalyst precursor to form a catalyst; and curing the catalyst in an inert gas atmosphere at temperatures of about 250° C. to about 600° C. for a period of about 1 hour to 200 hours.

    Abstract translation: 一种用于制备用于从乙烯和氧气生产环氧乙烷的催化剂的方法，包括提供催化剂前体，其包含具有催化有效量的含银化合物的惰性载体，促进量的含碱金属的化合物 ，和其上设置有过渡金属的化合物的促进量; 煅烧催化剂前体，通过加热催化剂前体以形成催化剂，将含银化合物中的银转化成金属银; 并在约250℃至约600℃的温度下在惰性气体气氛中固化催化剂约1小时至200小时。

    START-UP PROCESS FOR HIGH SELECTIVITY ETHYLENE OXIDE CATALYSTS
    14.
    发明申请
    START-UP PROCESS FOR HIGH SELECTIVITY ETHYLENE OXIDE CATALYSTS 有权
    用于高选择性乙氧基乙烷催化剂的启动方法

    公开(公告)号：US20140187807A1

    公开(公告)日：2014-07-03

    申请号：US14144752

    申请日：2013-12-31

    Applicant: Scientific Design Company, Inc.

    Inventor： Serguei Pak

    IPC: C07D301/10

    CPC classification number: C07D301/10

    Abstract: A high selectivity catalyst start-up process is provided in which an excess level of chloride moderator (greater than 1 ppm) is present in the feed gas composition during each of the various stages of the start-up process. The excess level of chloride used in the start-up process maintains a low level of selectivity (less than 86%) during the entire start-up process. Despite the low selectivity values achieved during the start-up process of the present disclosure, high selectivity catalysts that are conditioned by such a start-up process exhibit improved catalyst performance during the normal operation of the catalyst.

    Abstract translation: 提供了高选择性催化剂启动方法，其中在启动过程的各个阶段期间，进料气体组合物中存在过量的氯化物缓和剂（大于1ppm）。 在启动过程中使用的过量氯化物在整个启动过程中保持低水平的选择性（小于86％）。 尽管在本公开的启动过程中实现的低选择性值，通过这种启动方法调节的高选择性催化剂在催化剂的正常操作期间表现出改进的催化剂性能。

    EPOXIDATION PROCESS WITH ADDED MODERATOR
    15.
    发明申请
    EPOXIDATION PROCESS WITH ADDED MODERATOR 有权
    带添加的调节器的环氧化工艺

    公开(公告)号：US20130096330A1

    公开(公告)日：2013-04-18

    申请号：US13655000

    申请日：2012-10-18

    Applicant: SCIENTIFIC DESIGN COMPANY, INC.

    Inventor： Hassan Eisa Al-Ahmadi ,  Ashok S. Padia

    IPC: C07D301/03

    CPC classification number: C07D301/03 ,  C07D301/04

    Abstract: A method for the epoxidation of an olefin comprising the steps of reacting a feed gas composition containing an olefin, oxygen, and a moderator having an optimal moderator concentration in the presence of an epoxidation catalyst at a first temperature and having a first selectivity; and increasing the optimal moderator concentration to a second moderator concentration and whereby the first selectivity is lowed to a second selectivity and the first temperature to a second temperature.

    Abstract translation: 一种用于烯烃环氧化的方法，包括以下步骤：在第一温度下在含有环氧化催化剂存在下具有最佳缓和剂浓度的含有烯烃，氧气和缓和剂的进料气体组合物反应并具有第一选择性; 并且将最佳缓和剂浓度增加至第二减速剂浓度，由此第一选择性降低至第二选择性，第一温度降低至第二温度。

    METHOD FOR ESTIMATING A DELAY OF A PROCESS DATA CHANGE WITH RESPECT TO A PARAMETER CHANGE IN AN ETHYLENE OXIDE REACTOR
    17.
    发明申请
    METHOD FOR ESTIMATING A DELAY OF A PROCESS DATA CHANGE WITH RESPECT TO A PARAMETER CHANGE IN AN ETHYLENE OXIDE REACTOR 有权

    公开(公告)号：US20240369993A1

    公开(公告)日：2024-11-07

    申请号：US18654784

    申请日：2024-05-03

    Applicant: Scientific Design Company, Inc.

    Inventor： SANDIP KUMAR LAHIRI ,  Mansoor HUSAIN ,  SOMNATH CHOWDHURY ,  VIKAS KUMAR CHALKA

    IPC: G05B19/4155

    Abstract: The invention relates to a method of estimating a delay of a process data change with respect to a parameter change of a process of producing ethylene oxide in a reactor comprising the steps: Recording a history representing process data changes in connection with parameter changes of a real ethylene oxide reactor over time, Analyzing the history by means of an artificial neural network model regarding a delay of a first process data change with respect to a first parameter change and/or a delay of the first process data change with respect to a first and a second parameter change, Acquiring process data of a reactor producing ethylene oxide, Determining a future point in time based on the analysis and the acquired process data, when a change of a parameter of the running process will have a certain impact on the process property.

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