Pure and Binary Mixture Gases Adsorption Equilibria of Hydrogen/Methane/Ethylene on Activated Carbon

摘要

Adsorption equilibria of the gases H_2,CH_4,and C_2H_4 and their binary mixtures on activated carbon (Cal-gon co.) have been measured by static volumetric method in the pressure range of 0 to 18 atm at temperatures of 293.15,303.15,and 313.15 K.From the parameters obtained from single component adsorption isotherm,multi-component adsorption equilibria could be predicted and compared with experimental data.The binary experimental data were applied to four models :extended Langmuir,extended Langmuir-Freundlich,Ideal Adsorbed Solution theory (IAST),and Vacancy Solution Model (VSM).The models were found to describe the experimental data with a reasonable accuracy.Extended L-F model predicts equilibria of mixture better than any other model.