The paper presents adsorption equilibrium of CO2 and N2 on different size of Zeolite13X at temperatures ranging from 25℃ to 60℃ and pressures up to 1 bar. Adsorption amount is measured using a static adsorption experiment apparatus. Adsorption equilibrium was reached faster at high temperatures and high pressure. The size of adsorbent particle has no effect about adsorption rate and adsorption amount. However, adsorption rate is faster in smaller adsorbent particles.