Abstract: F127-MoO3/Al2O3 catalysts are prepared by the in-situ synthesis method using PEO-PPO-PEO tri-block copolymer (F127, Ma=12 600) as surfactant and AlCl3 as aluminum source. The prepared catalysts are characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM) and N2 adsorption-desorption. The influences of different reaction conditions on the oxidative desulfurization of model oil are investigated. The result shows that the addition of F127 as surfactant promotes MoO3 to disperse highly on the surface of Al2O3, which increases the specific surface area, average pore size and pore volume of the catalysts. For 10.0 mL model oil with mass fraction of sulfur at 400 μg·g-1, benzothiophene in the model oil can be almost totally removed under the conditions that the dosage of catalyst is 0.06 g, dosage of oxidant is 0.03 mL, the reaction temperature at 70℃ and reaction time being 23 min. Benzothiophene is converted into benzothiophene dioxide. The catalytic activity of prepared catalysts remains still good after five times repeated uses.
金伟, 田永胜, 查乐林, 徐乾, 曾丹林, 崔佳伟, 王光辉. F127对MoO3/Al2O3结构及其催化氧化脱除苯并噻吩性能的影响[J]. 现代化工, 2017, 37(11): 75-79.
JIN Wei, TIAN Yong-sheng, ZHA Le-lin, XU Qian, ZENG Dan-lin, CUI Jia-wei, WANG Guang-hui. Influence of F127 on structure of MoO3/Al2O3 and its catalytic performance for removal of benzothiophene. Modern Chemical Industry, 2017, 37(11): 75-79.
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