The experimental results Of CO2 adsorption and desorption in a packed column indicated that the concentration wave front at the center of the packed column differs from those close to the wall of column filled with adsorbent material even though the ratio of column diameter to the particle size is greater than 20([1]) The comparison of the experimental results with one-dimensional model of packed column shows that to simulate the average breakthrough in a packed column, a two-dimensional (radial and axial) model of packed column is needed.([2]) In this article, the mathematical model of a nonslip flow through a packed column 2 inches in diameter and 18 inches in length filled with 5A zeolite pellets is presented. The comparison of experimental results of CO2 adsorption and desorption for the mixed and central breakthrough of the packed column with numerical results is also presented.