The good agreement between the model predicted rates and enhancement factors and the experimental results indicate that the combined mass transfer reaction kinetics–equilibrium model with the appropriate use of model parameters can effectively represent CO2 mass transfer for the aqueous amine blends AMP/DEA.
The good agreement between the model predicted rates and enhancement factors and the experimental results indicate that the combined mass transfer reaction kinetics–equilibrium model with the appropriate use of model parameters can effectively represent CO2 mass transfer for the aqueous amine blends MDEA/MEA and AMP/MEA.
The CO2 absorption into the amine blends is described by a combined mass transfer reaction kinetics–equilibrium model, developed according to Higbie's penetration theory.
Furthermore, under the local mechanical equilibrium assumption, only one macroscopic equation arises for momentum transport, which resembles an extension of Darcy׳s law; whereas for mass transport, the equilibrium model reduces to the continuity equation.
The combined mass transfer reaction kinetics–equilibrium model to describe CO2 absorption into the amine blends has been developed according to Higbie's penetration theory following the work of Hagewiesche et al. (Chem. Eng. Sci. 50 (1995 10711995 1071
In this paper, a methodology relying on several models is developed to address this issue: a Mass Equilibrium Summation enthalpy non-linear model (MESH) dedicated to the enhanced data collection, a Mixed Integer Linear Programming (MILP) model used for the HEN synthesis and finally a linear model developed for the modeling of the HEN response to disturbances.
Kinetically-controlled volatilization and dissolution of nonaqueous-phase liquids (NAPL's) in the unsaturated (vadose) zone are a more general model as compared to the usually used local equilibrium model of mass transfer.
Specifically, it may become impossible to construct consitent concentration profiles in the framework of the so-called "equilibrium model", in which mass-transfer resistances are neglected.
An equilibrium model that employs the mass action law was also developed to evaluate the optimum apparent equilibrium constants (KE), stoichiometric ratio (m) and physical constant (S).
An equilibrium model based on differential mass balances written for the fluid and the solid phase was proposed.
