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采用活塞流管式积分反应器,在1.0MPa压力下,对环境友好铁系无铬NBC 1型高温变换催化剂上变换反应本征动力学数据进行了测试。根据测定得到的数据,对幂函数动力学模型进行了模型参数估计和模型检验,得到了高度显著的动力学回归方程。从动力学方程可以得出:该高温变换催化剂上变换反应活化能比较低,因此其低温活性较好;该催化剂上H2O组分对反应速率的影响比较大;CO2对变换反应速率的抑制作用很大,因此为提高变换反应速率,应当设法减小CO2的不利影响;H2组分对反应速率的影响很小,在实际应用过程中,可以忽略。
The piston kinetic tube integral reaction reactor was used to test the inherent kinetic data of the conversion reaction on an environmentally friendly iron-chromium-free NBC 1 high temperature shift catalyst at a pressure of 1.0 MPa. According to the measured data, model parameter estimation and model test are carried out on the power function dynamic model, and a highly significant kinetic regression equation is obtained. From the kinetic equation, it can be concluded that the activation energy of the shift reaction at the high temperature shift catalyst is relatively low, so its low temperature activity is better; the influence of the H2O component on the reaction rate is relatively large; the inhibition effect of CO2 on the shift reaction rate is very high Therefore, in order to improve the conversion reaction rate, we should try to reduce the adverse effects of CO2; H2 component has little effect on the reaction rate, which can be neglected in practical application.