文档介绍：第29卷第17期农业工程学报 2013年 9月Transactions of the Chinese Society of Agricultural Engineering Sep. 2013 196 Optimization of transesterification of beef tallow for biodiesel production catalyzed by solid catalystsZhao Xinyu, Xu Guizhuan※, Yu Yongchang, Yan Xiaobin, Zhang Bailiang (College of Electrical and Mechanical Engineering, Henan Agricultural University, Zhengzhou 450002, China) Abstract: The production of biodiesel from abandoned animal fat catalyzed by solid catalysts can realize the catalysts reutilization, decrease the cost of raw materials, thus enhancing the petitiveness of biodiesel. The transesterification reaction of beef tallow and methanol to product biodiesel using Cs2O/γ-Al2O3 as solid catalyst was studied in this study. Response surface methodology and Box-Behnken experimental design were employed to optimize the reaction conditions. The variables of the molar ratio of methanol to oil, catalyst amount, reaction time and reaction temperature were investigated, and the optimum conditions were obtained: molar ratio of methanol to oil :1, catalyst amount % (based on the weight of oil), reaction time 120 min, reaction temperature 66℃. Under this optimum reaction conditions, the biodiesel yield was %. The collected catalyst can be reused after being calcined for 4 h at 400℃ and the biodiesel yields decrea