用间苯二腈气相氯化反应制取四氯间苯二腈的以活性炭为载体的催化剂,在280—340℃下测定其失活特性曲线。结果表明,在实验条件下,该催化剂具有一级失活特性。失活机理为产物阻塞催化剂微孔,失活速率随温度的升高反而降低。其失活动力学方程式为 The activated carbon tetrachloroisophthalonitrile catalyst was prepared by the gas phase chlorination of isophthalonitrile and its deactivation characteristic curve was measured at 280-340 ℃. The results show that under the experimental conditions, the catalyst has a first-order deactivation characteristics. The deactivation mechanism is that the product blocks the micropores of the catalyst, and the deactivation rate decreases as the temperature increases. The kinetic equation of inactivation is