Abstract: A new technique for measuring simultaneously adsorption rate and temperature variation in zeolites has been developed. The transient temperature process during the adsorption of a gas on zeolite was analyzed by means of a simple model. It was found that the diffusion of gases in zeolite crystals could be made almost isothermal if the experimental conditions were appro-priately designed. Thus the thermal effect on the determination of diffusion coefficient of gases in zeolite could be neglected.

摘要： 本文提出一种同时测量沸石吸入气体的速率曲线和沸石温度变化曲线的新方法.用简单的数学模型分析了沸石吸入气体的温度瞬变过程.数学分析和实验结果表明,只要实验条件选择得当,气体在沸石晶体中的扩散接近等温过程,热效应对扩散系数测定的影响可以忽略.