Numerical examination of the dual‐mode model for permeation, sorption, and desorption rate curves

摘要

AbstractNumerical solutions were applied to the dual‐mode sorption and transport model for gas permeation, sorption, and desorption rate curves allowing for mobility of the Langmuir component. Satisfactory agreement is obtained between integral diffusion coefficient from sorption and desorption rate curves and apparent diffusion coefficient from permeation rate curves (time lag method). These rate curves were also compared to the curves predicted by Fickian‐type diffusion equations. © 1992 John WileySons,