燃料化学学报2016，Vol.44Issue(12)：1518-1522,5.
TiO2-Al2 O3复合载体的制备及Co-Mo/TiO2-Al2 O3催化剂加氢脱硫性能的研究
Study on the preparation of TiO2-Al2 O3 composite support and its application in Co-Mo/TiO2-Al2 O3 catalyst for hydro-desulfurization
摘要
Abstract
A variety of TiO2-Al2 O3 composite support were prepared using improved sol-gel method ( SG) , co-precipitation method ( CP ) , surface precipitation ( PR ) and mechanical kneading method ( ME ) , and the influence of preparation methods on their physical properties were investigated. The hydro-desulfurization activity of Co-Mo/TiO2-Al2 O3-X catalysts prepared by impregnation method was studied. XRD, BET and SEM were used to characterize the composite support and the catalysts. Results show that the composite support prepared by SG method has uniform morphology with larger surface area, pore size and pore volume. And the monolayer or sub-monolayer of TiO2 existed in the γ-Al2 O3 . Under the reaction conditions of 3. 0 MPa of hydrogen pressure, 280℃ of reaction temperature, 4 h of reaction time, 1. 4 h-1 of the liquid space velocity and 600 of hydrogen to oil ratio, Co-Mo/TiO2-Al2 O3 prepared by SG method has highest hydro-desulfurization activity, and the thiophene conversion rate reached 96 . 6%.关键词
TiO2-Al2O3复合载体/加氢脱硫/溶胶-凝胶法/Co-Mo催化剂Key words
TiO2-Al2 O3 composite support/hydro-desulfurization/sol-gel method/Co-Mo catalyst分类
化学引用本文复制引用
王广建,李佳佳,吴春泽,王芳..TiO2-Al2 O3复合载体的制备及Co-Mo/TiO2-Al2 O3催化剂加氢脱硫性能的研究[J].燃料化学学报,2016,44(12):1518-1522,5.基金项目
The project was supported by National Natural Science Foundation of China(2127613007,21506107), the National Natural Science Foundation of Shandong Province (ZR2014BP009) and the Opening Foundation of State Key Laboratory of Chemical Resource Engineering.国家自然科学基金(2127613007,21506107),山东省自然科学基金(ZR2014BP009)和化工资源有效利用国家重点实验室开放课题资助 （2127613007,21506107）
