催化反应转化率与催化剂组分含量的关系式

Relationship of conversion rate of catalytic reaction to catalyst component contents

针对三种不同物料连续流动催化反应系统:(1)MoVTeNbO/SiO_2用于丙烷选择氧化制丙烯醛反应;(2)KMoNi/SiO_2用于高硫合成气制甲硫醇反应;(3)MoNiP/Al_2O_3用于噻吩加氢脱硫反应。在各自的固定反应条件下,研究催化反应转化率与催化剂组分含量的关系,提出半经验表达式:x_A=1-exp[-G(w_i)],G(w_i)=。利用此式拟合上述3个催化反应系统的实验数据,平均相对偏差分别为1.97%,1.54%和1.42%,拟合精度较高,证明所提出的关系式是合理的,而且颇有普适性,可用于优化设计催化剂组分的含量。

Relationship of conversion to catalyst contents was studied for three different material catalytic reaction systems with continuous-flow of reactants as follows： （ 1 ） MoVTeNbO/SiO2 catalysts for selective oxidation of propane to acrolein ; （2） KMoNi/SiO2 catalysts for methanethiol synthesis from high H2S-containning synthesis gas; （3） MoNiP/Al2O3 catalysts for thiophene hydrodesulfurization. A semiempirical expression of relationship of conversion to catalyst contents was put forward and used to correlate the experimental data of the above reactions. Average relative deviation（ARD） are 1.97% , 1.54% and 1.42% respectively. The high fitting precision indicates that the expression proposed is reasonable, widely applicable and can be used for optimizing component contents of catalysts.