含硅氧化铝催化剂的制备及性质.pdf

214 Vol. 21No.4 2007 12 JOURNAL OF SHAN HAI UNIVERSITY OF EN INEERIN SCIENCE Dec. 2007 : 1009- 444X( 2007) 04- 0326- 05 唐博合金, 王艾芬, 江政烨, 李寿 , 蒋子翰, 张佳乐 ( , 201620) : 描述了含硅氧化铝载体的酸性 源及结构特征SiO-Al O 同时存在L 酸和B 酸中心, 2 2 3 且表面积越大, 表面酸性就越强SiO-Al O 的制备,取决于成胶时各溶液的组成比例和成胶 2 2 3 条件, 其中主要是溶液混合顺序和注入速度氧化硅含量对氧化铝晶粒大小孔结构及活性金属 的分散产生重要的影响 : 含硅氧化铝; 载体; 催化剂; 加氢精制 + : O 643. 38; TE 665.6 2; TQ 032 : A Preparat ion and Propert ies of Alumina Catalyst Containing Silicon TAN Bohejin, WAN Aifen, JIAN Zhengye, LI Shouhong, JIAN Zihan, ZHAN Jiale ( College of Chemistry and Chemical Engineering, Shanghai University of Engineering and Science, Shanghai 201620, China) Abstract: The acidity origin and structuralcharacteristics of alumina carrier containing silicon were described. T here exist the centersof L acid and B acid in SiO-Al O .The larger the surface area,the stronger the surface 2 2 3 acidity. Preparation of SiO-Al O is decided by the composition and proportion of every solution, as well as 2 2 3 the colloidized condition,in which themixing order and speed are essential.The SiO2 content has important ef fects on the grain size,pore structure and the dispersion of active metals. Key words: alumina containing silicon; carrier; catalyst; hydrofining () , ( SiO 7. 5%~ 10%) , , 2 , 70 , [ 1] , 1 [ 3] ,