AlCl3/乙醇络合催化剂催化1-癸烯齐聚反应动力学研究

选用AlCl3/乙醇络合催化体系对1-癸烯齐聚反应进行研究。采用GC-MS分析方法测定产物组成，考察温度对聚合速率的影响，通过计算得到聚合表观活化能，并对1-癸烯齐聚动力学行为进行理论研究和分析，建立了排除扩散影响的简化动力学方程。结果表明：AlCl3/乙醇络合催化剂催化的1-癸烯齐聚反应的表观活化能为4.98 kJ/mol；该反应为阳离子聚合过程，在AlCl3 摩尔分数为2%、乙醇与AlCl3的摩尔比为0.9、反应温度为0~100 ℃、反应时间为3 h、搅拌速率为600 r/min的条件下，反应所得的齐聚产物主要为1-癸烯的三聚体和四聚体，且随着反应温度的升高，生成的二聚体、三聚体含量升高，四聚体、五聚体含量下降。

REACTION KINETICS OF 1-DECENE OLIGOMERIZATION CATALYZED BY AlCl3-ETHANOL COMPLEX

The oligomerization of 1-decene was studied with AlCl3-ethanol complex as catalyst. The products were analyzed by GC-MS to investigate the effect of reaction temperature on the reaction rate. The simplified kinetic equation was established, and the apparent activation energy was obtained by calculating the conversion of 1-decene. The results show that 1-decene oligomerization catalyzed by AlCl3-ethanol complex is a cationic reaction process with apparent activation energy of 4.98 kJ/mol. At AlCl3 mole ratio of 2%, ethanol/AlCl3 molar ratio of 0.9, reaction temperature in the range of 0-100 ℃, reaction time of 3 h and stirring speed of 600 rpm, the products of oligomerization are mainly trimers and tetramers. As the reaction temperature increase, the yield of dimmers and trimers increases, and the yield of tetramers and pentamer decreases.