Recently, many studies have been conducted to reduce the emission of fine particle matter. The fine particle matter exists in the atmosphere in two pathways. One is direct emissions from pollutants such as industrial facilities. The other is secondary in the atmosphere by causative agents such as sulfur oxides, nitrogen oxides and ammonia. In particular, sulfur oxides are synthesized as ammonium sulphate in the atmosphere and account for 37% of the total amount of fine dust. Therefore, emissions of sulfur oxides should be suppressed from industrial facilities. The efficiency of the desulfurization process can be improved by improving the reactants supplied. Ca(OH)2 is used as a general reactant for desulfurization and may be substituted for sodium-containing reactants. We evaluated the performance of Ca(OH)2 to replace NaHCO3. The performance of Ca(OH)2 is proportional to the surface area estimated as BET. Further research is needed on how to improve Ca(OH)2 to increase BET.
Recently, many studies have been conducted to reduce the emission of fine particle matter. The fine particle matter exists in the atmosphere in two pathways. One is direct emissions from pollutants such as industrial facilities. The other is secondary in the atmosphere by causative agents such as sulfur oxides, nitrogen oxides and ammonia. In particular, sulfur oxides are synthesized as ammonium sulphate in the atmosphere and account for 37% of the total amount of fine dust. Therefore, emissions of sulfur oxides should be suppressed from industrial facilities. The efficiency of the desulfurization process can be improved by improving the reactants supplied. Ca(OH)2 is used as a general reactant for desulfurization and may be substituted for sodium-containing reactants. We evaluated the performance of Ca(OH)2 to replace NaHCO3. The performance of Ca(OH)2 is proportional to the surface area estimated as BET. Further research is needed on how to improve Ca(OH)2 to increase BET.