Preparation of Al2O3-TiO2 Complex Supports by Nano-Scale Self-Assembly Technique

Ping Li; Zhi Fang Tang; Guo Min Liu; Shan Lin Zhao; Jin Hui Zhang

doi:10.4028/www.scientific.net/AMR.893.162

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Preparation of Al₂O₃-TiO₂ Complex Supports by Nano-Scale Self-Assembly Technique

Abstract:

By using the orthogonal method to evaluate the optimum experiment parameters for preparing mesoporous Al₂O₃-TiO₂supports which can be used for resid hydrotreating catalyst by its large pore volume, the two-step nanoscale self-assembly technique was successfully adopted. The experimental conditions were obtained, such as: the amount of surfactant; the ratio of raw materials, the amount of precipitation reagent and the reaction time. TEM was employed to characterize the A1₂O₃-TiO₂complex supports. The test results revealed that the specific surface area of Al₂O₃-TiO₂ complex supports reached to the largest under the optimized experimental condition. The TEM result also showed that TiO₂ was homogeneously distributed in the complex support. The pore distribution of the complex support obtained was stable, which promises the best candidate for the support to resid hydrotreating catalyst.