碳修饰氧化铝制备钴基费托合成催化剂  

Carbon Modifi ed Alumina Supported Cobalt Catalysts for Fischer-Tropsch Synthesis

作　　者：向员力 余成龙 张煜华 刘成超[1] 李金林[1] Xiang Yuanli;Yu Chenglong;Zhang Yuhua;Liu Chengchao;Li Jinlin(School of Chemistry and Material Science,South-Central Minzu University,Hubei,430074)

机构地区：[1]中南民族大学化学与材料科学学院,湖北430074

出　　处：《当代化工研究》2023年第5期65-67,共3页Modern Chemical Research

基　　金：国家自然科学基金“纳米碳修饰Al2O3构筑高效钴基费-托合成催化剂及其水热稳定性研究”(项目编号:21902187)。

摘　　要：碳材料具有优良的水热稳定性,对Al_(2)O_(3)载体进行碳包覆,可以改善材料的水热稳定、调变表面官能团结构及亲水疏水性等性能。本文以葡萄糖作为碳源,采用浸渍-焙烧法制备了碳包覆氧化铝的C-Al_(2)O_(3)复合载体材料,通过等体积浸渍法制备了25%Co/C-Al_(2)O_(3)催化剂。与纯Al_(2)O_(3)载体负载钴的催化剂Co/P-Al_(2)O_(3)相比,在高温(230℃)及高CO转化率(60%)的高水分压条件下,Co/C-Al_(2)O_(3)催化剂CO的转化率提高了9.1%,稳定性显著增强。Carbon material has excellent hydrothermal stability.Carbon coated Al_(2)O_(3) support that can improve the hydrothermal stability,modulate the surface functional group structure and hydrophilic and hydrophobic properties.Here,we used glucose as carbon source to prepare the C-Al_(2)O_(3) by impregnated-calcined method,and the Co/C-Al_(2)O_(3) catalyst(25%)was prepared by incipient wetness impregnation method.Compared with the Co/P-Al_(2)O_(3) catalyst,the Co/C-Al_(2)O_(3) catalyst has much higher catalytic activity at a reaction temperature of 230℃with CO conversion of 60%,which was increased by 9.1%.Moreover,a very impressive stability was observed for the Co/C-Al_(2)O_(3) catalyst.

关 键 词：碳包覆 复合载体材料 浸渍法 钴催化剂 费-托合成 

分 类 号：TQ[化学工程]