Abstract
Absorption is the 2nd largest unit operation after the Distillation in the chemical process industries. Due to its importance in the various chemical processes several theoretical and experimental studies have been carried out on it. In this scientific research the absorption of carbon dioxide in water in the presence of inert ammonia has been carried out in the falling-film column and then packed column. The purpose of this scientific research is to investigate the effect of flow rate on the overall absorption coefficient. For this purpose the reactive absorption is carried out in the falling-film column and packed column and sample is drawn after equal intervals of time. To analyze our experimental data titration method is used and the results are plotted on the graph which shows that the overall absorption coefficient in case of Packed Column is initially decrease and then sudden increase while in case of Falling-Film Column the absorption coefficient value initially increase than sudden decrease. So we recommend the Packed Column for industrial operations.