分子筛晶内扩散系数测定的新公式

用程序升温热脱附方法，通过一次实验即可得到不同温度的分子筛晶内扩散系数，考虑到在脱附初期，吸附分子的浓度较大，可能存在相互作用的影响，本文提出了处理热脱附失重曲线的新公式，并用两组分子筛样品进行了验证，结果表明，新公式明显优于旧公式。

A NEW EQUATION FOR MEASURING INTRACRYSTALLINE DIFFUSION COEFFICIENT OF ZEOLITE

With TPD,the intracrystalline diffusion coefficients at several different temperature can be obtained in our experiment. In view of the higher concentration of adsorbed molecular at the initial thermodesorption, resulting an interaction may be presented, a new equation for treating TPD thermogravimetry curves is presented, two samples of molecular sieve have been used to detect the theory, the experimental results show that the new equation is more suitable.