Catalytic Esterfication Preparation and Kinetics of Oleic Acid Isobutyl Ester and Its Cold Flow Properties
LI Fa-she LI Ming BAO Gui-rong WANG Hua WANG Zheng LI Yi-zhe DU Wei XU Juan
Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Institute of Electrical Engineering, Chinese Academy of Science Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology The Basis of the Department, Southwest Forestry University
Abstract： Preparation of oleic acid isobutyl ester using [HPY][HSO4] ionic liquid as catalyst and ethanol and oleic acid as reactants was carried out in a self-designed reactor. The optimum reaction conditions were obtained as temperature 100℃, time 3 h, catalyst dosage 2%(w) and volume ratio of ethanol to oleic acid 2:1. Kinetic analysis of the catalytic esterification reaction indicated that the apparent reaction order was 1.0, activation energy Ea 32.0 kJ/mol, frequency factor 66.6 and reaction kinetics model -dCA/dt=66.6e-32000/(RT)CACB. The prepared oleic acid isobutyl ester had low temperature performance and poor flowability with the pour point of -25.5℃, cold filter plugging point of -20.5℃ and kinematic viscosity of 6.32 mm2/s. The low temperature performance of biodiesel and flowability of oleic acid isobutyl ester were improved by blending it with Jatropha curcas L. seed oil.
李法社 李明 包桂蓉 王华 王峥 李一哲 杜威 徐娟. 油酸异丁酯的离子液体催化酯化制备与动力学及其低温流动性能[J]. , 2013, 13(6): 1041-1046.
LI Fa-she LI Ming BAO Gui-rong WANG Hua WANG Zheng LI Yi-zhe DU Wei XU Juan. Catalytic Esterfication Preparation and Kinetics of Oleic Acid Isobutyl Ester and Its Cold Flow Properties. , 2013, 13(6): 1041-1046.
2013, Vol. 13 
