(191k) Finite-Difference Diffusion Equation Consistent with Density Profiles near Surfaces
AIChE Annual Meeting
2011
2011 Annual Meeting
Engineering Sciences and Fundamentals
Poster Session: Interfacial Phenomena
Monday, October 17, 2011 - 6:00pm to 8:00pm
The inconsistency between density profiles of fluids near surfaces and predictions of classical diffusion model is analyzed. A new diffusion equation and its solutions are proposed to reconcile adsorption behavior with predictions of the diffusion equation at the equilibrium limit. This solution allows boundary conditions consistent with density profiles in fluids near surfaces.