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    NICKEL HEXAALUMINATE-CONTAINING CATALYST FOR REFORMING HYDROCARBONS IN THE PRESENCE OF CARBON DIOXIDE
    2.
    发明申请
    NICKEL HEXAALUMINATE-CONTAINING CATALYST FOR REFORMING HYDROCARBONS IN THE PRESENCE OF CARBON DIOXIDE 有权
    在二氧化碳存在下用于改造碳氢化合物的含镍六卤化镓的催化剂

    公开(公告)号：US20160008791A1

    公开(公告)日：2016-01-14

    申请号：US14771888

    申请日：2014-03-06

    Applicant: BASF SE

    Inventor： Stephan SCHUNK ,  Ekkehard SCHWAB ,  Andrian MILANOV ,  Guido WASSERSCHAFF ,  Thomas ROUSSIERE ,  Gerhard COX ,  Bernd HINRICHSEN ,  Ulrich FLOERCHINGER

    IPC: B01J23/83 ,  B01J35/02 ,  C01B3/40 ,  B01J37/04 ,  B01J37/02 ,  B01J37/08 ,  B01J23/78 ,  B01J35/10

    CPC classification number: B01J23/83 ,  B01J21/04 ,  B01J23/002 ,  B01J23/02 ,  B01J23/755 ,  B01J23/78 ,  B01J35/002 ,  B01J35/006 ,  B01J35/023 ,  B01J35/1004 ,  B01J37/0236 ,  B01J37/031 ,  B01J37/036 ,  B01J37/04 ,  B01J37/08 ,  B01J37/088 ,  C01B3/40 ,  C01B2203/0227 ,  C01B2203/0805 ,  C01B2203/1058 ,  C01B2203/1082 ,  Y02E60/324

    Abstract: The invention relates to a nickel hexaaluminate-comprising catalyst for reforming hydrocarbons, preferably methane, in the presence of carbon dioxide, which comprises hexaaluminate in a proportion in the range from 65 to 95% by weight, preferably from 70 to 90% by weight, and a crystalline, oxidic secondary phase selected from the group consisting of LaAlO3, SrAl2O4 and BaAl2O4 in the range from 5 to 35% by weight, preferably from 10 to 30% by weight. The BET surface area of the catalyst is ≧5 m2/g, preferably ≧10 m2/g. The molar nickel content of the catalyst is ≦3 mol %, preferably ≦2.5 mol % and more preferably ≦2 mol %. The interlayer cations are preferably Ba and/or Sr. The process for producing the catalyst comprises the steps: (i) production of a mixture of metal salts, preferably nitrate salts of Ni and also Sr and/or La, and a nanoparticulate aluminum source, (ii) molding and (iii) calcination. The catalyst of the invention is brought into contact with hydrocarbons, preferably methane, and CO2 in a reforming process, preferably at a temperature of >800° C. The catalyst is also distinguished by structural and preferred properties of the nickel, namely that the nickel particles mostly have a tetragonal form and the particles have a size of ≦50 nm, preferably ≦40 nm and particularly preferably ≦30 nm, and are present finely dispersed as grown-on hexaaluminate particles. The catalyst has only a very low tendency for carbonaceous deposits to be formed.

    Abstract translation: 本发明涉及一种在二氧化碳存在下重整碳氢化合物（优选甲烷）的含六铝酸镍催化剂，其包含65重量％至95重量％，优选70至90重量％的六铝酸盐， 以及选自5至35重量％，优选10至30重量％范围内的LaAlO 3，SrAl 2 O 4和BaAl 2 O 4的结晶，氧化的第二相。 催化剂的BET表面积为≥5m2 / g，优选≥10m2 / g。 催化剂的摩尔镍含量为3％，优选为1％，2.5％，更优选为2％。 层间阳离子优选为Ba和/或Sr.制备催化剂的方法包括以下步骤：（i）制备金属盐，优选Ni和Sr和/或La的硝酸盐以及纳米颗粒铝源的混合物 ，（ii）成型和（iii）煅烧。 本发明的催化剂在重整过程中优选与烃，优选甲烷和CO 2接触，优选在800℃以上的温度下。催化剂的特征还在于镍的结构和优选性质，即镍 颗粒大多具有四方晶形，并且颗粒的尺寸为＆lt; nlE; 50nm，优选为＆lt; lE; 40nm，特别优选为＆lt; NE; 30nm，并且作为生长的六铝酸盐颗粒细分散存在。 催化剂仅形成碳沉积物的非常低的趋势。

    POROUS CATALYST-SUPPORT SHAPED BODY
    3.
    发明公开
    POROUS CATALYST-SUPPORT SHAPED BODY 审中-公开

    公开(公告)号：US20230302432A1

    公开(公告)日：2023-09-28

    申请号：US18011855

    申请日：2021-06-25

    Applicant: BASF SE

    Inventor： Sung Yeun CHOI ,  Andrey KARPOV ,  Christian WALSDORFF ,  Patrick HUBACH ,  Hubert WAINDOK ,  Bernd HINRICHSEN ,  Gonzalo PRIETO GONZALEZ ,  Tania RODENAS TORRALBA ,  Karl C. KHARAS

    IPC: B01J21/04 ,  B01J35/04 ,  B01J35/10 ,  B01J35/00 ,  B01J37/08 ,  C07D301/10 ,  B01J37/02

    CPC classification number: B01J21/04 ,  B01J35/002 ,  B01J35/04 ,  B01J35/1009 ,  B01J35/1042 ,  B01J35/1061 ,  B01J37/0201 ,  B01J37/0236 ,  B01J37/088 ,  C07D301/10

    Abstract: A porous shaped catalyst support body comprising at least 85% by weight of alpha-alumina, wherein the support has a total pore volume in the range from 0.5 to 2.0 mL/g as determined by mercury porosimetry, and a pore structure characterized by a geometric tortuosity τ in the range from 1.0 to 2.0; and an effective diffusion parameter η in the range from 0.060 to 1.0; wherein geometric tortuosity τ and effective diffusion parameter η are determined by image analysis algorithms from computer-assisted 3D reconstructions of focused ion beam scanning electron microscope analyses. The structure of the support has a high total pore volume, such that impregnation with a large amount of silver is possible, while the surface area is kept sufficiently high in order to assure optimal dispersion of the catalytically active species, especially metal species. The support has a pore structure that leads to a maximum rate of mass transfer within the support. The invention also relates to a shaped catalyst body for preparation of ethylene oxide by gas phase oxidation of ethylene, comprising at least 15% by weight of silver, based on the total weight of the catalyst, deposited on a porous shaped catalyst support body as described above. The invention further relates to a process for producing the shaped catalyst body, in which a) a porous shaped catalyst support body as described above is impregnated with a silver impregnation solution, preferably under reduced pressure; and the impregnated porous shaped catalyst support body is optionally subjected to drying; and b) the impregnated porous shaped catalyst support body is subjected to a heat treatment; wherein steps a) and b) are optionally repeated. The invention also relates to a process for preparing ethylene oxide by gas phase oxidation of ethylene, comprising the reaction of ethylene and oxygen in the presence of a shaped catalyst body according to claim 11.

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