Simulation Analysis of Heat and Mass Transfer during Adsorption Process of Activated Carbon and High Pressure Refrigerant Pair

Abstract

Adsorption kinetics of activated carbon and high pressure gas pair was analyzed by experiment and simulation. The rise of temperature during the adsorption process affects adsorption uptake. Therefore, the simulation model took into consideration of detailed heat and mass transfer in a cylindrical adsorption bed. The results showed that the detailed heat and mass transfer model agreed with the experimental results more accurately compared with the model where the linear driving force model was solely used without the consideration of the changes in temperature and pressure. The effect of the radial direction distribution in cylindrical adsorption bed is also discussed. Although the number of the grids in radial direction decreased in simulation,the error of approximation between the model and experimental result was not changed significantly.