摘要
通过对不同气-固体系的考察,提出了一种以线性升温吸附-非线性降温吸附-线性升温脱附为主要实验步骤的程序控温吸-脱附方法。同时解决了吸、脱附动力学的计算问题。对实际体系的研究结果表明:借助这一动态分析手段,可在一次实验中观察到吸、脱附的全部动态过程,方便地进行活化吸附和非活化吸附的研究,并可计算得到有关的吸、脱附动力学参数,为进行吸、脱附的理论探讨与实际应用提供了一种有效的实验方法。
After studying some different gas-solid systems a dynamic analysis method is proposed which consists of three mainsteps: adsorption controlled by a linearly increasing temperature program; adsorption controlled by a non linearly de creasing temperature program and dcsorption under a linearly increasing temperature. The calculation about the activation energies of adsorption and desorption and the heat of adsorption is put in practice. The results of studies for some gas-solid systems show that the complete dynamic procedure of adsorption and desorption can be observed and active adsorption and inactive adsorption can be conveniently studied by this dynamic analysis method.
关键词
吸附
解吸
程序控温
adsorption, kinetics, dynamic methods
desorption, active adsorption.
