Abstract: The periodical operation behavior of a patented TPCIX column was investigated. The continuous ion exchange process was analysed through the concept of probability density and conversion distribution function. The numerical solution of a group of partial differential equations describing the operation characteristics of the pseudo steady state process was found with the leading moments method. The relation between moments of different orders was established by means of the Laguerre polynomial. The simulated results agreed with the experimental data.

摘要： 本文对TPCIX塔的周期性操作行为进行了模拟研究.引用概率密度的概念,即转化率分布密度函数对连续离子交换过程进行分析.采用主导矩法对描述拟稳态操作的偏微分方程组进行数值解.计算结果与实验规律基本一致.