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使用活塞流管式积分反应器 ,采用稳态测定技术 ,在 6 18～ 72 3K、1.0MPa压力下 ,对在国产B113- 2型铁铬系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参数估计和检验 ,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 :在高温变换催化剂上变换反应动力学参数基本上与传统铁铬系高温变换催化剂一致 ,但在该催化剂上CO组分对反应速率的影响程度降低 ,推测可能是由于该催化剂中Cu组分作用的结果 ;CO2 对变换反应速率的抑制作用较大。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。
Using piston flow tube integral reactor, steady state determination technique was used to transform the intrinsic kinetic data of reaction at the domestic B113-2 ferro-chrome high-temperature shift catalyst under the pressure of 6 18 ~ 72 3K and 1.0 MPa test. According to the measured data, parameter estimation and test of the power function dynamic model are carried out, and a highly significant kinetic regression equation is obtained. From the kinetic equation, it can be concluded that the kinetic parameters of the shift reaction at the high temperature shift catalyst are basically the same as those of the conventional Fe-Cr high temperature shift catalyst, but the influence of the CO component on the reaction rate on the catalyst is reduced, presumably due to Cu catalyst in the role of the result; CO2 on the conversion reaction rate inhibition. Therefore, in order to improve the conversion reaction rate, we should try to reduce the adverse effects of CO2; H2 component of the reaction rate is small, in the practical application process, can be ignored.