超声波强化连续制备小桐子生物柴油的动力学研究  

Kinetics for biodiesel production from Jatropha curcasl oil via continuous ultrasonic transesterification

作　　者：丁琨[1] 苏有勇[2] 张无敌[3] 

机构地区：[1]西南林业大学理学院,昆明650224 [2]昆明理工大学现代农业工程学院,昆明650504 [3]云南师范大学教育部生物能源持续开发利用工程研究中心,昆明650092

出　　处：《化工新型材料》2014年第8期127-129,共3页New Chemical Materials

基　　金：科技部农业科技成果转化资金项目(2009GB2F300348);云南省科技条件平台建设项目(2010DH012)

摘　　要：在优化的物料醇油的物质的量比为6∶1、催化剂KOH用量为小桐子油质量的1.2%和超声波功率为180W条件下,研究超声波强化连续制备小桐子生物柴油的动力学行为,采用Origin软件拟合曲线方程,建立宏观动力学模型。结果表明,超声波强化连续酯交换反应制备小桐子油生物柴油的反应基本遵循1.87级,反应速率随温度的升高而加快,二者符合Arrhenius方程,该反应的活化能为36.66kJ·mol-1,频率因子为8.98×106。建立的反应动力学模型将为扩大试验和在超声波作用下管道式连续酯交换制备小桐子油生物柴油工艺的工业化应用提供理论依据。Kinetics for biodiesel production from Jatropha curcasl oil via continuous ultrasonic transesterification was studied of which the mole ratio of methanol to Jatropha curcasl oil was 6 ： 1, KOH was used as catalyst with a dosage of 1.2% of Jatropha curcasl oil,and ultrasonic power was 180W,A macro-kinetic equation was established based on equation of curve fitted by Origin software. The experimental results showed that the hiodiesel production followed 1.87 order kinet- ic equations. The reaction rate became accelerating with increasing the temperature and the relationship followed Arrhenius equation while the activation energy of the reaction was 36.66kJ ·mol^-1 and the frequency factor was 8.98 ×10^6 , Kinetic model established would offer theoretical basis and basic data for enlarged experiment and industrialized application of biodiesel production from Jatropha curcasl oil via continuous ultrasonic transesterification.

关 键 词：超声波强化 小桐子油生物柴油 酯交换反应 反应动力学 

分 类 号：TE667[石油与天然气工程—油气加工工程]