METHOD OF REMOVING SULFUR DIOXIDE AND NITROGEN OXIDE

摘要

A method is disclosed for scrubbing SO2 and NOx containing gases with iron sulfide. The reaction proceeds only to the formation of FeS2 and FeSO4 without significant formation of sulfur or iron oxide. The reaction products are subsequently regenerated to FeS by heating and can be recycled for further scrubbing operations; elemental sulfur is recovered as a by-product.