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在内循环无梯度反应器中测定了常压下φ5×5mm园柱状颗粒C_(301)催化剂的宏观速率(只计入内扩散影响),以常压甲醇分解反应本征动力学为基础,获得了十六种条件下效率因子的实测值为0.114至0.259。用稳态法测定了C_(301)催化剂的曲节因子。以甲醇分解为主反应,建立关键组分甲醇在颗粒内同时进行扩散与反应的微分方程,提出催化剂效率因子的近似解。在相同反应条件下,近似解与实测值的相对误差为-0.09至0.278。效率因子近似解法可用于工业反应器的模拟、设计及优化。
The macroscopic velocity of C301 catalyst with φ5 × 5mm columnar particles under atmospheric pressure was measured in the inner-loop gradientless reactor (only the influence of internal diffusion was included), based on the intrinsic kinetics of methanolysis at atmospheric pressure, The efficiency factor for the sixteen conditions was found to be 0.114 to 0.259. The steady state method was used to determine the track factor of C_ (301) catalyst. The decomposition of methanol was the main reaction, and the differential equation of simultaneous diffusion and reaction of methanol, which is the key component in the particles, was established. An approximate solution of the catalyst efficiency factor was proposed. Under the same reaction conditions, the relative error between the approximate solution and the measured value is -0.09 to 0.278. The approximate solution to the efficiency factor can be used for simulation, design and optimization of industrial reactors.