Adsorption equilibrium isotherms of CH4

N2 and CO2 on zeolite ZSM-5 were measured by Rubotherm magnetic suspension balance in the pressure range of 0-500 kPa and the temperature range of 273-353 K. Sips model

Toth model and MSL model were used to fit the experimental data with acceptable accuracy

and the model parameters were obtained by the non-linear regression method. Binary adsorption isotherms of CO2/N2

CO2/CH4 and CH4/N2 were measured by the magnetic suspension balance with different compositions in the pressure range of 0-500 kPa at 293 K. The Sips model-based ideal adsorbed solution theory and two-component MSL model were used to simulate the competitive adsorption equilibrium isotherms of CO2/N2

CO2/CH4 and CH4/N2. Furthermore

the selectivity of CO2/N2

CO2/CH4 and CH4/N2 gas mixtures were calculated

and the feasibility of adsorption separation

using zeolite ZSM-5 as adsorbent to separate CO2 from flue gases (CO2/N2)

CH4 from landfill gases (CO2/CH4) and coal mine gases (CH4/N2) was evaluated.