Research of Microwave Assisted Mung-Bean Carbon-Based Solid Acid Catalyst on Methyl Esterification of Oleic Acid

Abstract:

To study the effect of microwave irradiation on the catalytic activity of carbon-based solid acid catalyst made from mung-bean，the catalyst was successfully prepared by carbonization after with sulfonation process and used in methyl esterification of oleic acid by the self-made microwave reactor in laboratory. To select the appropriate reaction conditions，the single factor，including microwave power，reaction time，temperature，catalyst amount and the molar ratio of methanol and oleic acid was studied and based on this result，the orthogonal test was designed to optimize the process parameter. At last，the optimized process condition was microwave power 400 w，temperature 65 ℃，the molar ratio of methanol and oleic acid 11∶1，reaction time 30 min and catalyst amount 5% with 93.97% methyl ester yield.