渗透蒸发传质理论与模型 (Ⅲ)扩散模型

Mass transfer theories and models for pervaporation (Ⅲ) Models for membrane diffusion

系统介绍了描述组分在渗透蒸发膜中的扩散行为的模型,如浓度依赖型扩散系数的经验模型、自由体积理论、双吸附模型、分子模拟等,包括模型形式、适用范围、应用实例等.

Models to describe the diffusion of components across the pervaporation membrane are briefly overviewed including the fundamental equations,applicability range,as well as the application examples,with emphasis on empirical models for concentration-dependent diffusion coefficients,free volume theory,dual sortion model,and molecular simulation.