A kinetic modeling study was performed for the methanation of CO_x gases using experimental data from the literature. The original kinetic parameters were used to calculate the different reaction rates, which resulted in an average absolute error of 11%. By means of a sensitivity analysis, it was demonstrated that the reported values of parameters do not correspond to the global minimum of the objective function. A recalculation of the kinetic parameters using an optimization methodology was performed in order to obtain the optimal values of the parameters. After applying the methodology, a series of simulations using the optimized values was performed where the predictions obtained with the new values of parameters exhibited a better accuracy to predict the experimental data in comparison with the reported kinetic parameter values with an average absolute error of 2.18%.

中文翻译：

---

使用文献数据验证 COx 气体甲烷化的动力学模型


使用文献中的实验数据对 CO_x 气体的甲烷化进行了动力学建模研究。使用原始动力学参数计算不同的反应速率，导致平均绝对误差为 11%。通过敏感性分析，证明参数的报告值与目标函数的全局最小值不对应。使用优化方法对动力学参数进行重新计算，以获得参数的最佳值。应用该方法后，使用优化值进行了一系列模拟，其中与报告的动力学参数值相比，使用新参数值获得的预测表现出更好的预测实验数据的准确性，平均绝对误差为 2.18%。