低温固相法制备非负载型介孔Ni-Mo-W硫化物催化剂  

Preparation of unsupported and mesoporous Ni-Mo-W sulfide catalysts by low temperature solid-state reaction

作　　者：安高军[1] 柴永明[1] 陈照军[1] 刘晨光[1] 

机构地区：[1]中国石油大学重质油国家重点实验室

出　　处：《中国石油大学学报（自然科学版）》2007年第6期156-160,共5页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家'973'重点基础研究发展规划项目(2004CB217807)

摘　　要：介绍了一种新型的柴油深度加氢改质催化剂的制备方法。以四硫代钼酸铵、四硫代钨酸铵和碱式碳酸镍为前驱物,以化合物MS-1为模板剂,采用低温固相表面反应技术,制备出具有较高比表面、适宜孔容和介孔孔径分布的非负载型Ni-Mo-W硫化物催化剂,并采用X射线衍射、低温N2吸附、扫描电镜、高分辨透射电镜等手段对所制备的催化剂进行表征。将所制备的加氢催化剂以催化裂化柴油为原料,采用高压釜装置进行加氢活性评价。评价结果表明,该方法制备的催化剂具有优异的加氢脱硫、加氢脱氮活性。A novel preparation method of diesel oil deeply-hydrotreating catalysts was introduced. By using ammonium tetrathiomolybdate, ammonium tetrathiotungstate and basic nickel carbonate as the catalyst precursors and compound MS-1 as the template unsupported Ni-Mo-W sulfide catalysts with higher specific surface area, proper pore volume and mesoporous structure were synthesized through the technology of low temperature solid-state surface reaction. The X-ray diffraction （ XRD）, low temperature N2 adsorption （BET method）, scanning electron microscopy （SEM） and high resolution transmission electron microscope （HRTEM） were employed to characterize the as-synthesized sulfide catalysts. The as-synthesized catalysts were evaluated in the high-pressure vessel by utilizing FCC diesel oil as the material. The evaluation results show that the assynthesized sulfide catalysts have excellent performance of hydrodesulfurization and hydrodenitrogenation.

关 键 词：四硫代钼酸铵 四硫代钨酸铵 模板剂 固相反应 介孔材料 催化剂 

分 类 号：TE624.93[石油与天然气工程—油气加工工程]