丁烯-1异构化复杂反应动力学

MoBiP_1:8/SiO₂催化剂的X衍射实验证实存在BiPO₄物相,用吸附指示剂正丁胺滴定法测定了催化剂显中等强度酸性。催化剂上吸附吡啶的红外光谱实验证实催化剂存在质子酸和Lewis酸中心。用脉冲法测定了丁烯-1及丁烯-2的吸附热。

The Complex Kinetics of Isomertization of Butene-1

The existence of phase of BiPO4 was proved by the X-ray powder patterns of MoBiP1.8/SiO2 catalyst. The acidity of the catalyst was titrated by n-butyl-amine with the method of adsorption of colored indicators.The catalyst exhibited moderate acidity. The, presence of Bronsted and Lewis acids of the catalyst was discriminated by the infrared spectroscopic method of pyridine adsorption on the catalyst. The heats of adsorption of butene-1 and butene-2 were determined by the pulse method. The kinetics of isomerization of butene-1 over MoBiP1.8 /SiO, catalyst has been investigated by the flowrecirculation glass non-gradientness reactor. The kinetic equations obey the L-H mechanism of triangular reaction of isomerization of butene. When the parameters of simplified kinetic equation of L-H mechanism were estimated by the linear least square method, the condition number of coefficient matrix of norm equation was more than 108. The parameters of complex kinetic equations of isomerization of butene were estimated by the method of orthoganal design and fine results were obtained. The formation rates of isomerization of trans-butene-2 and cis-butene-2 were shown respectively asfollows: