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前文报道了采用 Yang—Hongen 方法,从四种机理假设建立了十三个竞争功力学方程。本文则重点解决从上述竞争方程中识别出能适应于以云南硅藻土为载体的钒催化剂上 SO_2氧化机理的本征动力学方程。我们利用线性回归分析方法,用15组实验数据。从十三个竞争方程中,筛选出较为理想的动力学方程,并用6组实验数据进行验证,最后确定了最佳机理模型方程为:r=(KB(Po_2~1/2-P_(so3)/KP_(so2)/(1+(k_BP_(so3)/k_BP_(so2)~(1/2)+k_PP_(so3)~(1/2))~2
The previous article reports the use of the Yang-Hongen method to establish thirteen competitive functional equations based on the four mechanisms. This paper focuses on solving the intrinsic kinetic equation that identifies the SO2 oxidation mechanism that can be adapted to the vanadium catalyst supported by Yunnan diatomite from the above competition equation. We use linear regression analysis method with 15 sets of experimental data. From the thirteen competing equations, the ideal kinetic equation was screened out and validated by six groups of experimental data. Finally, the optimal mechanism model equation was determined as follows: r = (KB (Po_2 ~ 1/2-P_ (so3) / KP_ (so2) / (1+ (k_BP_ (so3) / k_BP_ (so2) ~ (1/2) + k_PP_ (so3) ~ (1/2)) ~ 2