Mathematical Modeling of Absorption-adsorption Processes for Waste Free Decontamination of Gases from SO 2 in a Bubble Tray Column

Integrated absorption-adsorption for waste free desulfurization of gases from SO 2 in a bubble tray column is presented. The method includes physical absorption of SO 2 with water and chemical adsorption of HSO 3 -from the water solution by particles anionite. The two steps method is integrated in one apparatus-a bubble tray column. This method is regenerative and the regeneration is made with solution of ammonium hydroxide. The further step for utilization of the obtained (NH 4 ) 2 SO 3 and (NH 4 HSO 3 ) is by using HNO 3 ) for production of concentrated SO2 (gas) and NH 4 NO 3 (solution). Convection-diffusion and average concentration models are presented, which are used to describe absorption and adsorption processes. A comparison of the calculated trough the mathematical model and the experimental data is shown.