MODELS AND ANALYSES OF MEMBRANE GAS PERMEATORS

Transport models and parametric studies of membrane gas permeators for idealized flow patterns, e.g. plug and mixed, are reviewed here. Modeling aspects embracing binary and multicomponent mixtures with and without pressure drop effects are elucidated. Existing analytical and approximate solutions for different models along with their ranges of applicability are presented. The conditions under which nonidealities in flow patterns like longitudinal mixing, boundary layer and radial mixing effects exist are identified and their effects on the validity of the models are discussed. Possible future research needs are also presented.