燃料化学学报2016，Vol.44Issue(5)：564-569,6.
助剂Ni与载体的相互作用及其对NiMo/γ-Al2 O3催化剂加氢脱硫性能的影响
Interaction between Ni promoter and Al2 O3 support and its effect on the performance of NiMo/γ-Al2O3 catalyst in hydrodesulphurization
摘要
Abstract
A series of NiMo/γ-Al2 O3 catalysts with different NiO loadings were prepared and characterized by XRD, BET, 27 Al-NMR, Py-IR and HRTEM. The activity of these NiMo/γ-Al2 O3 catalysts in the hydrodesulphurization ( HDS) of dibenzothiophene ( DBT) was evaluated in a high pressure micro reactor; the interaction between Ni promoter and γ-Al2 O3 support as well as its effect on the nanostructure of active MoS2 phase and HDS performance was then investigated. The results indicate that Ni promoter prefers to interact with the tetra-coordinated unsaturated aluminum sites on the support surface. With the increase of NiO loading, the average number of stacking layers for the MoS2 clusters in the sulfided NiMo/γ-Al2 O3 catalysts is increased at the expense of the average length. As the slim MoS2 clusters are more active for the HDS of DBT, the addition of Ni promoter is then effective to enhance the catalytic activity of NiMo/γ-Al2 O3 in HDS, but may lead to a slight decrease in the hydrogenation selectivity.关键词
助剂/镍/氧化铝/NiMo/γ-Al2 O3/活性组分/载体/加氢脱硫Key words
promoter/nickel/alumina/NiMo/γ-Al2 O3/active component/support/hydrodesulphurization分类
能源科技引用本文复制引用
赵瑞玉,曹东炜,曾令有,梁娟,刘晨光..助剂Ni与载体的相互作用及其对NiMo/γ-Al2 O3催化剂加氢脱硫性能的影响[J].燃料化学学报,2016,44(5):564-569,6.基金项目
The project was supported by the National Natural Science Foundation of China (21176258, U1162203) and the Catalysts Development and Industrial Application Research Program of CNPC (1001A050104).国家自然科学基金(21176258,U1162203)和中石油催化剂研制开发与工业应用重大专项(1001A050104)资助 （21176258, U1162203）
