SO2 emissions from different industrial activities including production of electricity from power plants as well as, metallurgical and cement factories, to name a few, are undesired due to this chemical’s harmful effects. Many processes to reduce sulfur dioxide emissions have been developed. Amongst these processes, direct dry sorbent injection is a relatively simple and low-cost process. In the current study, a two dimensional CFD investigation of the Direct Sulfation Process is presented. This model accounted for the process taking place in a fixed bed reactor. Effects of important operating parameters including the temperature, concentration and pressure were studied in this work. It was shown that these variables significantly affected this process. In other words, direct sulfation was shown to be controlled by both the chemical reaction as well as, diffusion phenomena. The diffusivity in the product layer demonstrated to be highly depended upon temperature while no such dependence on the sulfation degree was determined.

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