Abstract: The complex reaction kinetics of L-H. mechanism in triangular reaction of isomerzation of butenes has been investigated in a flowrecirculation glass reactor. X-ray analysis showed that the MoBiP2.2/SiO2 catalyst contained the phase of bismuth phosphate. The acidic concentration of the catalyst was titrated by butylamine with the method of adsorption of coloured indicator. The catalyst exhibited moderete acidity. The brousted and lewis acidity was measured by the infared spectroscopic method with pyridine adsorbedon catalyst. Gas-solid chromatography has been used to measure the heat of adsorption of 1-butene and 2-butene respectively. The dependence of the apparent activation energies on the intrinsical activation energies of the isomerization of 1-butene was discussed. The parameters of the kinetic equations were estimated with the mothod of orthogonal design. The kinetic equations for the formation of trans 2 butene and cis-2-butene respectively by isomerzation were developed.

摘要： 用玻璃外循环无梯度反应器研究了丁烯异构化L-H三角机理复杂反应动力学.X衍射分析指出Mo-B_1-P_2.2/SiO_2催化剂含有磷酸铋物相.用吸附指示剂正丁胺滴定法测定了催化剂的酸量.催化剂显中等强度的酸性.催化剂上吸附吡啶的红外光谱法测定了质子酸和路易斯酸.气相色谱法测定了1-丁烯、2-丁烯吸附热.讨论了1-丁烯异构化表观活化能与真活化能的关系.用正交设计法估计了动力学方程中的参数.异构化生成反-2-丁烯及顺-2-丁烯的动力学方程分别为式(11)、(12)所描述.