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用外循环无梯度反应器研究了内扩散对异丁醇完全氧化动力学的影响。当催化剂颗粒在30～40目时反应在动力学区域进行。异丁醇完全氧化的动力学方程服从异丁醇及O_2吸附,CO_2吸附阻碍的L-H模型。当催化剂颗粒增大到4mm时,异丁醇完全氧化发生在内扩散区域。催化剂有效因子在0.47～0.75之间。它表明反应受内扩散控制。内扩散区域的表观活化能为动力学表观活化能及O_2分子扩散活化能之和的一半。用常微分方程的试射法及梯形法标出O_2在催化剂孔内的压力分布。
The effect of internal diffusion on the kinetics of the complete oxidation of isobutanol was studied by an external loop gradientless reactor. When the catalyst particles in the 30 ~ 40 mesh reaction in the kinetic region. The kinetic equation for the complete oxidation of isobutanol obeys the L-H model hindered by isobutanol, O 2 adsorption and CO 2 adsorption. When the catalyst particles increased to 4mm, the complete oxidation of isobutanol occurred in the inner diffusion zone. Catalyst effective factor between 0.47 ~ 0.75. It shows that the reaction is controlled by internal diffusion. The apparent activation energy of the inner diffusion region is half of the sum of the apparent activation energy of kinetics and the activation energy of O 2 molecule diffusion. The pressure distribution of O_2 in catalyst pores was marked by the test method and trapezoidal method of ordinary differential equations.