松节油催化异构-分子间氢转移反应集总动力学  

Lumping kinetic model for catalytic isomerization-intermolecular hydrogen transfer of turpentine

作　　者：王琳琳[1] 陈小鹏[1] 徐徐[1] 黄超[1] 童张法[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《化学工程》2009年第5期38-41,共4页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(30560119);教育部高等学校博士学科点专项科研基金项目(20070593004);广西青年基金资助项目(0640001);广西教育厅资助项目(桂教科研[2006]26号)

摘　　要：以H2SO4-Pd/C为复合催化剂、N2为保护气研究了松节油直接异构-分子间氢转移反应的集总动力学。在消除内、外扩散影响的条件下,在线跟踪反应产物并用气相色谱法测定反应体系组成随时间的变化关系,借鉴集总思想和方法,建立了单萜烯、对孟烯结构的单环单萜烯、异构单萜烯、对伞花烃和氢化单萜烷复杂反应体系的集总动力学模型;采用Levenberg-Marquart法,以Matlab编程和SPSS软件对实验数据进行回归估算了模型参数,得到该复杂反应体系的活化能分别为77.86,80.18,71.33 kJ/mol,所建动力学模型与实验数据吻合良好。A lumping kinetic for catalytic isomerization-intermolecular hydrogen transfer reaction of turpentine with H2SO4-Pd/C as catalyst was investigated under nitrogen atmosphere. Under the condition of eliminating the internal and external diffusion and by on-line tracing the reaction product, the component vs. time was acquired by gas chromatography. The lumped components of the complex reaction systems were defined and the reaction network was proposed according to the lumping method. The lumping kinetic model was established for monoterpene, monocyelic monoterpene with p-methadien structure, isomerization monterpene, p-cymene, and hydrogenated monoterpane. The parameters of the kinetic model were estimated with Levenberg-Marquart method by programming Matlab and SPSS statistics software. The activation energies for the complex reaction systems are 77.86, 80.18, 71.33 kJ/mol, respectively. The kinetic model is in good agreement with the experimental data.

关 键 词：松节油 催化 氢转移反应 集总动力学 

分 类 号：O643.32[理学—物理化学]