Isothermal Adsorption with Complex Equilibrium

Kinetic Modeling of Isothermal or Non-isothermal Adsorption in a Pellet: Application to Adsorption Heat Pumps

Understanding the interaction between a fluid and a solid phase is of fundamental importance to the design of an adsorption process. Because the heat effects associated with adsorption are comparatively large, the assumption of isothermal behavior is a valid approximation only when uptake rates are relatively slow. In this article, we propose to determine when it is needed to choose the isother...

Modeling chromatographic columns non-equilibrium packed-bed adsorption with non-linear adsorption isotherms.

In this work a new mathematical model, based on non-equilibrium conditions, describing the dynamic adsorption of proteins in columns packed with spherical adsorbent particles is used to study the performance of chromatographic systems. Simulations of frontal chromatography, including axial dispersion, for non-equilibrium systems with non-linear adsorption isotherms are made and compared to thos...

Lagrange{galerkin Approximation for Advection{dominated Contaminant Transport with Nonlinear Equilibrium or Non{equilibrium Adsorption

An extension of the Lagrange{Galerkin approach is developed for advection-dominated problems with nonlinear adsorption, either being in equilibrium or in non{equilibrium, possibly with isotherms of the Freundlich type. The scheme should be feasable also for the hyperbolic limit case. The basic problems to deal with are the possibility of non{unique characteristics due to the nonlinear isotherms...

Solute Transport in Porous Media with Equilibrium and Non-equilibrium Multiple-Site Adsorption: Travelling Waves

Mesoscopic non-equilibrium thermodynamics of non-isothermal reaction-diffusion.

We show how the law of mass action can be derived from a thermodynamic basis, in the presence of temperature gradients, chemical potential gradients and hydrodynamic flow. The solution gives the law of mass action for the forward and the reverse contributions to the net chemical reaction. In addition we derive the fluctuation-dissipation theorem for the fluctuating contributions to the reaction...