CARRIER TREATMENT TO IMPROVE CATALYTIC PERFORMANCE OF AN ETHYLENE OXIDE CATALYST
    51.
    发明申请
    CARRIER TREATMENT TO IMPROVE CATALYTIC PERFORMANCE OF AN ETHYLENE OXIDE CATALYST 审中-公开
    载体处理提高乙烯氧化物催化剂的催化性能

    公开(公告)号:US20150329510A1

    公开(公告)日:2015-11-19

    申请号:US14811309

    申请日:2015-07-28

    Abstract: A method for lowering the sodium content of different carriers which may have different physical properties as well as varying degrees of sodium is provided. The method, which lowers the sodium content from the surface, subsurface as well as the binding layer of the carrier, includes contacting a carrier with water. A rinse solution is recovered from the contacting. The rinse solution includes leached sodium from the carrier. The sodium content in the rinse solution is then determined. The contacting, recovering and determining are repeated until a steady state in the sodium content is achieved.

    Abstract translation: 提供了降低可能具有不同物理性质以及不同程度的钠的不同载体的钠含量的方法。 降低表面,地下以及载体结合层的钠含量的方法包括使载体与水接触。 从接触中回收漂洗溶液。 冲洗溶液包括从载体中浸出的钠。 然后确定冲洗溶液中的钠含量。 重复接触,回收和测定,直到达到钠含量的稳定状态。

    Start-up process for high selectivity ethylene oxide catalysts
    52.
    发明授权
    Start-up process for high selectivity ethylene oxide catalysts 有权
    高选择性环氧乙烷催化剂的启动方法

    公开(公告)号:US09096563B2

    公开(公告)日:2015-08-04

    申请号:US14144752

    申请日:2013-12-31

    Inventor: Serguei Pak

    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。

    Carrier treatment to improve catalytic performance of an ethylene oxide catalyst
    53.
    发明授权
    Carrier treatment to improve catalytic performance of an ethylene oxide catalyst 有权
    载体处理以改善环氧乙烷催化剂的催化性能

    公开(公告)号:US09095843B2

    公开(公告)日:2015-08-04

    申请号:US14279534

    申请日:2014-05-16

    Abstract: A method for lowering the sodium content of different carriers which may have different physical properties as well as varying degrees of sodium is provided. The method, which lowers the sodium content from the surface, subsurface as well as the binding layer of the carrier, includes contacting a carrier with water. A rinse solution is recovered from the contacting. The rinse solution includes leached sodium from the carrier. The sodium content in the rinse solution is then determined. The contacting, recovering and determining are repeated until a steady state in the sodium content is achieved.

    Abstract translation: 提供了降低可能具有不同物理性质以及不同程度的钠的不同载体的钠含量的方法。 降低表面,地下以及载体结合层的钠含量的方法包括使载体与水接触。 从接触中回收漂洗溶液。 冲洗溶液包括从载体中浸出的钠。 然后确定冲洗溶液中的钠含量。 重复接触,回收和测定,直到达到钠含量的稳定状态。

    Calcination process for producing an improved ethylene oxide catalyst
    55.
    发明授权
    Calcination process for producing an improved ethylene oxide catalyst 有权
    用于生产改进的环氧乙烷催化剂的煅烧方法

    公开(公告)号:US09067198B2

    公开(公告)日:2015-06-30

    申请号:US14144747

    申请日:2013-12-31

    Inventor: Serguei Pak

    Abstract: A method for producing a catalyst effective in the oxidative conversion of ethylene to ethylene oxide, the method comprising subjecting a refractory carrier impregnated with a liquid silver-containing solution to a calcination process, wherein the calcination process comprises a solvent removal step in which the silver-impregnated carrier is heated to a base temperature (Tbase) of at least 80° C. and up to about 200° C. to produce a dry carrier impregnated with ionic silver, followed by a silver reduction step in which the dry carrier is gradually heated above the base temperature to a maximum temperature (Tmax) of at least 350° C. and up to about 500° C. and then gradually cooled to the base temperature, wherein the method is conducted such that (Tbase−Tmax)×HW is at least 2000 min.° C. wherein HW is a full width at half maximum of a temperature versus time curve delineated by the silver reduction step.

    Abstract translation: 一种制备有效地将乙烯氧化成环氧乙烷的催化剂的方法,该方法包括使浸渍有含液体银的溶液的耐火材料载体进行煅烧过程,其中所述煅烧过程包括溶剂除去步骤,其中所述银 将浸渍的载体加热至至少80℃至高达约200℃的基础温度(Tbase),以产生用离子银浸渍的干燥载体,随后进行银还原步骤,其中干燥载体逐渐 在基础温度以上加热至最高温度(Tmax)至少350℃,最高约500℃,然后逐渐冷却至基体温度,其中进行方法为(Tbase-Tmax)×HW 是至少2000分钟。其中HW是通过银还原步骤描绘的温度对时间曲线的半峰全宽。

    SYSTEM AND METHOD FOR MONITORING A PROCESS
    57.
    发明申请
    SYSTEM AND METHOD FOR MONITORING A PROCESS 有权
    用于监测过程的系统和方法

    公开(公告)号:US20140365195A1

    公开(公告)日:2014-12-11

    申请号:US14296894

    申请日:2014-06-05

    Abstract: A system for monitoring a process determined by a set of process data in a multidimensional process data domain pertaining to process input-output data, the system comprising: means for acquiring a plurality of historic process data sets; means for obtaining a transformation from the multidimensional process data domain to a model data domain of lower dimension by performing multivariate data analysis; and means for transforming a current process data set to a model data set to monitor the process.

    Abstract translation: 一种用于监视与过程输入 - 输出数据相关的多维过程数据域中的一组过程数据确定的过程的系统,所述系统包括:用于获取多个历史过程数据集的装置; 通过执行多变量数据分析获得从多维过程数据域到较低维度的模型数据域的转换的手段; 以及用于将当前过程数据集转换为模型数据集以监视过程的装置。

    CARRIER FOR ETHYLENE OXIDE CATALYSTS
    58.
    发明申请
    CARRIER FOR ETHYLENE OXIDE CATALYSTS 有权
    乙烯氧化物催化剂载体

    公开(公告)号:US20140343307A1

    公开(公告)日:2014-11-20

    申请号:US14279570

    申请日:2014-05-16

    Abstract: A carrier for an ethylene epoxidation catalyst is provided that includes an alumina first component and a mixed metal oxide of alumina second component. The mixed metal oxide of alumina second component comprises a corundum lattice structure having a plurality of O—Al—O bonds, wherein an Al atom of at least one O—Al—O bond of the plurality of O—Al—O bonds, but not all of the plurality of O—Al—O bonds, is replaced with a divalent or trivalent transition metal selected from the group consisting of scandium (Sc), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni) copper (Cu), and zinc (Zn). A catalyst containing the carrier, as well as a process for the epoxidation of ethylene using the catalyst are also disclosed.

    Abstract translation: 提供了一种用于乙烯环氧化催化剂的载体,其包括氧化铝第一组分和氧化铝第二组分的混合金属氧化物。 氧化铝第二成分的混合金属氧化物包括具有多个O-Al-O键的刚玉晶格结构,其中多个O-Al-O键中的至少一个O-Al-O键的Al原子,但是 不是所有的多个O-Al-O键都被选自钪(Sc),钛(Ti),钒(V),铬(Cr),锰( Mn),铁(Fe),钴(Co),镍(Ni)铜(Cu)和锌(Zn)。 还公开了含有载体的催化剂以及使用该催化剂对乙烯进行环氧化的方法。

    EPOXIDATION PROCESS
    59.
    发明申请
    EPOXIDATION PROCESS 有权
    环氧化工艺

    公开(公告)号:US20140309442A1

    公开(公告)日:2014-10-16

    申请号:US14253366

    申请日:2014-04-15

    Inventor: Mansoor Husain

    CPC classification number: C07D301/06 C07D301/04 C07D301/32

    Abstract: A method for the oxidation of ethylene to form ethylene oxide is provided that includes passing an aqueous stream through a guard bed and one or more ion exchange treatment beds. The guard bed and the aqueous stream contain from about 0.2 to 20 wt % ethylene glycol. The guard bed contains a cross-linked polystyrene resin, partially functionalized with quaternary ammonium functional groups and the resin has a surface area of greater than 400 m2/g.

    Abstract translation: 提供了一种乙烯氧化形成环氧乙烷的方法,其包括使水流通过保护床和一个或多个离子交换处理床。 保护床和含水流含有约0.2-20重量%的乙二醇。 保护床含有交联聚苯乙烯树脂,部分用季铵官能团官能化,树脂的表面积大于400m2 / g。

    EPOXIDATION PROCESS WITH POST-CONDITIONING STEP
    60.
    发明申请
    EPOXIDATION PROCESS WITH POST-CONDITIONING STEP 有权
    具有后处理步骤的环氧化工艺

    公开(公告)号:US20140200357A1

    公开(公告)日:2014-07-17

    申请号:US14152519

    申请日:2014-01-10

    CPC classification number: C07D301/10 C07C29/106 C07D301/08 C07C31/202

    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 a post-conditioning step where the catalyst is exposed to reactor feed having a chlorides concentration of from about 5 ppm to about 7 ppm and at a temperature of about 215° C. to about 225° C.

    Abstract translation: 一种用于烯烃环氧化的方法,包括以下步骤:使含有烯烃,氧和具有后处理步骤的缓和剂的进料气体组合物反应,其中催化剂暴露于反应器进料中,氯化物浓度为约5ppm至 约7ppm和约215℃至约225℃的温度

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