公开(公告)号：US20160008791A1

公开(公告)日：2016-01-14

申请号：US14771888

申请日：2014-03-06

申请人： BASF SE

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

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

CPC分类号： 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

摘要： 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.

摘要翻译： 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。