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Determination of Intrapellet Rate Parameters bySingle-Pellet Chromatography (Ⅱ) Kinetics of CO Shift Reaction

Nan Haisheng Zhang Gandao (East China University of Chemical Technology, Shanghai) (Nanjing Institute of Chemical Technology, Nanjing)   

  • Online:1991-10-25 Published:1991-10-25

用单颗粒色谱法测定颗粒内的各种速率参数——(Ⅱ)CO变换反应动力学参数的测定

南海生,张赣道   

  1. 华东化工学院,南京化工学院 上海现在化工部科学技术研究总院 ,南京

Abstract: The equations relating the adsorption equilibrium constant and reactionrate constants on a single catalyst pellet to measureable properties of pulse-response experiments were derived by means of statistical moment theory. Under atmospheric pressure and at a temperature upto 340℃ the effective diffusivities and the adsorption equilibrium constants oi carbon monoxide and the rate constants for shift reaction CO + H2O = CO2 + H2 on a B110 catalyst pellet were measured by using ordinary thermal conductivity cell(TCC). It has been proved to be a new and valuable technique for determining the kinetic parameters of gas-solid heterogeneous catalytic reaction.

摘要: 运用统计矩理论推导出催化剂颗粒内气体吸附常数、有效扩散系数和反应速率常数与实验矩之间的关联式.在常压及高至340℃的温度下,用常规的热导池鉴定器测定了Co在B110催化剂中的有效扩散系数、吸附平衡常数以及变换反应CO十H_2O=H_2十CO_2的反应速度常数.它为化学反应工程基础研究提供了一种新型的、有效实用的实验技术.