Novel alumina and titania modified by silica in surface were prepared by applying the gel skeletal reinforcement (GSR) method using hexamethyldisiloxane-acetic anhydride system to alumina-gel and titania-gel formed by the sol-gel method. When NH₃-TPD of silica-modified alumina was measured, it was confirmed that new acid sites were observed in the high temperature range from 400 °C to 600 °C. Regarding silica-modified titania, the thermal stability of the anatase phase was observed in the calcination at 600 °C for 3 h, and the complex oxides with different physical properties were prepared. The mixed catalysts with these silica-modified alumina and titania and β-zeolite were prepared, and their reactivity in catalytic cracking of n-dodecane was investigated using a fixed bed reactor at 500 °C. β-zeolite-GSR-silica-modified alumina mixed catalysts was found to have higher conversion and improved gasoline fraction selectivity compared to the cases with the use of β-zeolite single and alumina without GSR modification.

通过将六甲基二硅氧烷-乙酸酐体系的凝胶骨架增强剂（GSR）应用于通过溶胶-凝胶法形成的氧化铝-凝胶和二氧化钛-凝胶，制备了新型的经二氧化硅改性的氧化铝和二氧化钛。当测量二氧化硅改性的氧化铝的NH ₃ -TPD时，证实在400℃至600℃的高温范围内观察到新的酸位。对于二氧化硅改性的二氧化钛，在600℃下煅烧3h观察到锐钛矿相的热稳定性，并制备了具有不同物理性质的复合氧化物。制备了这些二氧化硅改性的氧化铝与二氧化钛和β-沸石的混合催化剂，并在催化裂化n使用固定床反应器在500°C下研究了十二烷。与仅使用β沸石和未进行GSR改性的氧化铝的情况相比，发现β-沸石-GSR-二氧化硅改性的氧化铝混合催化剂具有更高的转化率和改善的汽油馏分选择性。