PROCESS FOR PRODUCTION OF A SILICA-SUPPORTED ALKALI METAL CATALYST
    2.
    发明申请
    PROCESS FOR PRODUCTION OF A SILICA-SUPPORTED ALKALI METAL CATALYST 审中-公开
    生产二氧化硅支持的碱金属催化剂的方法

    公开(公告)号:US20170036984A1

    公开(公告)日:2017-02-09

    申请号:US15234751

    申请日:2016-08-11

    摘要: A process for regenerating a silica-supported depleted alkali metal catalyst is described. The level of alkali metal on the depleted catalyst is at least 0.5 mol % and the silica support is a zero-gel. The process comprises the steps of contacting the silica supported depleted alkali metal catalyst with a solution of a salt of the alkali metal in a solvent system that has a polar organic solvent as the majority component. A re-impregnated catalyst prepared by the process of the invention any comprising a silica zero-gel support and a catalytic metal selected from an alkali metal in the range 0.5-5 mol % on the catalyst, wherein the surface area of the silica support is

    摘要翻译: 描述了二氧化硅负载的贫碱金属催化剂的再生方法。 贫化催化剂上的碱金属含量至少为0.5mol%,二氧化硅载体为零凝胶。 该方法包括以下步骤:使二氧化硅负载的贫碱金属催化剂与碱金属盐的溶液在具有极性有机溶剂作为主要组分的溶剂体系中接触。 通过本发明方法制备的再浸渍催化剂,其任一种包括二氧化硅零凝胶载体和选自催化剂上0.5-5mol%范围的碱金属的催化金属,其中二氧化硅载体的表面积为 还描述了<180m 2 / g。 本发明适用于制备烯属不饱和酸或酯的方法,包括使式R 1 -CH 2 -COOR 3的链烷酸或酯与甲醛或合适的甲醛源接触。

    Process and catalyst for cracking of ethers and alcohols
    7.
    发明授权
    Process and catalyst for cracking of ethers and alcohols 有权
    醚和醇裂化的工艺和催化剂

    公开(公告)号:US08829260B2

    公开(公告)日:2014-09-09

    申请号:US13450669

    申请日:2012-04-19

    申请人: J. Yong Ryu

    发明人: J. Yong Ryu

    摘要: A process for the production of olefins from at least one of an alcohol and ether, the process including: contacting at least one alcohol or ether with a hydrofluoric acid-treated amorphous synthetic alumina-silica catalyst under decomposition conditions to produce an olefin. Also disclosed is a process for the production of isobutylene from methyl tertiary butyl ether, the process including: feeding methyl tertiary butyl ether (MTBE) to a reactor having at least one reaction zone containing a hydrofluoric acid-treated amorphous synthetic alumina-silica catalyst; contacting the MTBE with the hydrofluoric acid-treated amorphous synthetic alumina-silica catalyst under decomposition conditions to produce a reactor effluent comprising isobutylene, unreacted MTBE, heavies, and methanol; feeding the reactor effluent to a first distillation column; separating the isobutylene from the unreacted MTBE, heavies, and the methanol in the first distillation column to recover a first bottoms fraction comprising heavies, unreacted MTBE, and methanol and an isobutylene-rich overheads fraction.

    摘要翻译: 一种从醇和醚中的至少一种生产烯烃的方法,该方法包括:在分解条件下使至少一种醇或醚与氢氟酸处理的无定形合成氧化铝 - 二氧化硅催化剂接触以制备烯烃。 还公开了从甲基叔丁基醚生产异丁烯的方法,该方法包括:将甲基叔丁基醚(MTBE)加入到具有至少一个含有氢氟酸处理的无定形合成氧化铝 - 二氧化硅催化剂的反应区的反应器中; 在分解条件下使MTBE与氢氟酸处理的无定形合成氧化铝 - 二氧化硅催化剂接触以产生包含异丁烯,未反应的MTBE,重质和甲醇的反应器流出物; 将反应器流出物送入第一蒸馏塔; 从第一蒸馏塔中的未反应的MTBE,重质物和甲醇中分离异丁烯以回收包含重质,未反应的MTBE和甲醇和富含异丁烯的塔顶馏分的第一塔底馏分。

    Method of suppressing increase in SO2 oxidation rate of NOx removal catalyst
    8.
    发明授权
    Method of suppressing increase in SO2 oxidation rate of NOx removal catalyst 有权
    抑制NOx去除催化剂的SO2氧化速率增加的方法

    公开(公告)号:US08722559B2

    公开(公告)日:2014-05-13

    申请号:US13555601

    申请日:2012-07-23

    IPC分类号: B01J38/02

    摘要: In a NOx removal catalyst used for removing nitrogen oxide in flue gas, when a silica (Si) component as an inhibitor that causes an increase in an SO2 oxidation rate accumulates on a surface of the NOx removal catalyst, the silica component accumulating on the surface of the NOx removal catalyst is dissolved, thereby regenerating the catalyst. Accordingly, the inhibitor such as the silica component covering the surface of the NOx removal catalyst can be removed, thereby enabling to provide a catalyst without having an increase in the SO2 oxidation rate of the regenerated NOx removal catalyst.

    摘要翻译: 在用于除去烟道气中的氮氧化物的NOx去除催化剂中,当作为抑制剂的二氧化硅(Si)成分在SO x氧化速率增加时积聚在除去NOx的催化剂的表面上时,积存在表面上的二氧化硅成分 的NOx去除催化剂溶解,从而再生催化剂。 因此,可以除去覆盖除去NOx的催化剂表面的二氧化硅成分的抑制剂,能够提供催化剂,而不会增加再生NOx除去催化剂的SO2氧化速率。

    Vaporization and Transportation of Alkali Metal Salts
    9.
    发明申请
    Vaporization and Transportation of Alkali Metal Salts 有权
    碱金属盐的汽化和运输

    公开(公告)号:US20130165722A9

    公开(公告)日:2013-06-27

    申请号:US12685892

    申请日:2010-01-12

    摘要: An apparatus and method for vaporizing and transporting an alkali metal salt is shown. The apparatus has a first conduit capable of transporting an alkali metal salt solution and a second conduit in fluid communication with the first conduit, the second conduit capable of transporting steam so that the alkali metal salt is dissipated into the steam forming a solution that can be transported, such as to a remote reaction zone. The solution can be transported via a third conduit that is capable of being heated by a heat source. The method can be used to add a promoter to a dehydrogenation catalyst during a dehydrogenation reaction.

    摘要翻译: 示出了用于蒸发和运输碱金属盐的装置和方法。 该设备具有能够输送碱金属盐溶液的第一导管和与第一导管流体连通的第二导管,第二导管能够输送蒸汽,使得碱金属盐被散发到形成可以是 运送到远程反应区。 该溶液可以经由能够被热源加热的第三导管输送。 该方法可用于在脱氢反应期间向脱氢催化剂中加入助催化剂。