Hydroisomerization of model naphtha over sulfided Co-Mo/SBA-15 catalyst

作者：Zhang Xiaoyan^*; Shi Guojun; Zhao Yu; Shen Jianyi

来源：Chinese Journal of Catalysis, 2008, 29(6): 553-558.

• sulfidation
• cobalt
• molybdenum
• SBA-15 zeolite
• supported catalyst
• thiophene
• hydrodesulfurization
• hexene
• skeletal isomerization

The Co/SBA-15, Mo/SBA-15, and Co-Mo/SBA-15 catalysts were prepared by the incipient wetness impregnation method. Their textural properties and surface acidity were characterized. In addition, these sulfided catalysts were compared with an industrial Co-Mo/gamma-Al2O3 catalyst in the hydrodesulfurization ( HDS) of thiophene and hydroisomerization of 1-hexene. The results showed that Co-Mo/SBA-15 catalyst exhibited comparable HDS reactivity to the Co-Mo/gamma-Al2O3 Catalyst. The Co-Mo/SBA-15 catalyst exhibited strong Bronsted acidity whereas the Co-Mo/gamma-Al2O3 catalyst possessed mainly strong Lewis acidity. Although the Mo/SBA-15 catalyst also possessed strong Bronsted acidity, it showed lower catalytic activity for skeletal isomerization of 1-hexene owing to its higher hydrogenation activity. On the other hand I the Co-Mo/SBA-15 catalyst exhibited not only strong Bronsted acidity but also relatively low hydrogenation activity, and hence the skeletal isomerization of 1-hexene over the Co-Mo/SBA-15 catalyst was higher, showing the potential application in industry.

• 出版日期2008-6
• 单位南京大学