Modelling of a Gas-Absorption Packed Column for Carbon Dioxide-Sodium Hydroxide System

This paper present a research work on the modeling of a gas absorption packed column with the aim formulating a mathematical model and simulation of the model using a computer software to obtain the rate of absorption and the amount of absorbed carbon dioxide CO2 into dilute sodium hydroxide NaOH. Arm field gas absorption column titration techniques were used for the analysis. The total concentration of carbonate and hence the amount of carbon dioxide absorbed was determined using gravimetric methods. The comparison between the obtained experimental and simulated results shows that the formulated model is a good representation of the system. A program was written in Q-Basic for simulation of any gas absorption packed column, the model and computer program could therefore be used to determining the condition in a counter-current continuous column at any given time, for any chemically reacting absorption system.