测定了对位与间位异丙基甲苯的穿透曲线。开发了一种优化方法，对吸附固定床穿透曲线试验数据进行非线性拟合，从而对吸附平衡常数进行估值。试验结果表明在对异丙基甲苯浓度小于２８％（质量）时，间异丙基甲苯浓度小于３５％（质量）时，吸附平衡存在线性关系，即ｑ＝βＣ＊。对异丙基甲苯在Ｙ型分子筛上吸附总传质系数小于间异丙基甲苯的总传质系数，这与二甲苯系统有显著差异，对过程设计与操作有一定意义 The breakthrough curves of para and meta toluol were determined. An optimization method was developed to non-linearly fit the experimental data of the fixed bed penetration curve to estimate the adsorption equilibrium constant. The experimental results show that there is a linear relationship between adsorption equilibria, ie q = βC *, when the concentration of meta-isopropyltoluene is less than 35% (mass) when the concentration of cumene is less than 28%. The total mass transfer coefficient of para-isopropyltoluene adsorbed on Y-type molecular sieve is less than the total mass transfer coefficient of meta-isopropyltoluene, which is significantly different from the xylene system, which has some significance for the process design and operation