Synthesis of biodiesel from soybean oil and methanol catalyzed by cationic ion-exchange resin in a ultrasonic reactor
To improve the efficiency of the production of biodiesel (Fatty Acid Methyl Ester, FAME), a new production method for FAME is developed. The transesterification was carried out in a ultrasonic reactor using solid acid catalysts (cation-exchange resin or zeolite beta) under the atmospheric condition; the average pore size for these catalysts were determined by itrogen adsorption experiments, the FAME content in the reaction mixture were quantified by a potassium hydroxide aponification method, and the product was investigated by FTIR imaging for further structural analysis. Experimental results showed that cation-exchange resin NKC-9 exhibited higher catalytic activity than zeolite beta, which may be correlated to the larger pore size of the NKC-9 produced stronger cavitations effect. When the methanol/ soybean oil molar ratio was 20, reaction temperature at 333K, reaction time 6 hours and catalyst/soybean oil mass ratio of 1.08wt％, the conversion of triglyceride 68.1 wt％ was obtained from this optimal reaction condition.
biodiesel soybean oil cation-exchange resin transesterification ultrasound
YUAN Hong YANG Bolun SHU Qing
Department of Chemical Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an Shaanxi 710049, China
国际会议
第四届中日化工学术研讨会(The 4th Joint China/Japan Chemical Engineering Symposium)(CJCES)
成都
英文
2007-12-19（万方平台首次上网日期，不代表论文的发表时间）