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本文建立了一个新的包括十六个集总组分的催化重整动力学模型,根据分层测定的原理,首先在压力微型反应器装置中,温度为460℃,480℃ 500℃和氢气压为8×10~5,10×10~5和12×10~5 Pa 及氢油摩尔比为10的条件下研究了六碳重整反应网络的动力学模型的本征反应动力学,催化剂是 Pt-Sn/Al_2O_3。用 Marquadt 修正的高斯-牛顿法估计了反应网络中各个反应的动力学参数。结果表明,动力学常数与温度的关系能很好地符合阿累尼乌斯关系式,模型中各个组分的实验值与计算值能很好地拟合,模型能有效地预测反应网络的产物分布。
In this paper, a new catalytic reforming kinetic model including 16 lumped components was established. According to the principle of stratified determination, the pressure was first set in a pressure microreactor unit at 460 ℃, 480 ℃ and 500 ℃, The kinetic model of the intrinsic kinetics of a six-carbon reforming reaction network was studied under the conditions of 8 × 10 ~ 5, 10 × 10 ~ 5 and 12 × 10 ~ 5 Pa and the molar ratio of hydrogen to oil was 10. The catalyst was Pt-Sn / Al 2 O 3. The kinetic parameters of each reaction in the reaction network were estimated using the Gauss-Newton method modified by Marquadt. The results show that the relationship between kinetic constants and temperature can well accord with the Arrhenius relation, the experimental values and calculated values of each component in the model can be well fitted, and the model can effectively predict the product of the reaction network distributed.