초록 |
The adsorption kinetics of carbon dioxide, carbon monoxide, nitrogen and methane on zeolite LiX pellet and activated carbon were studied at 293, 308, 323 K and pressure up to 100 kPa. The experiments were carried out by a high pressure volumetric system. Non-isothermal and isothermal kinetic model were applied for the experimental uptake curves in order to compare heat effect on the adsorption kinetics of differenct adsorbate/adsorbent systems. The adsorption kinetics were affected by heat generation, heat transfer and also slope of the adsorption isotherm. At a given pressure and temperature, the order of effective diffusion time constants obtained from non-isothermal kinetics model was CO2 |