Desulfurization jẹ imọ-ẹrọ lati ṣakoso itujade imi-ọjọ imi-ọjọ.Imukuro eruku ko le yọ imi-ọjọ imi-ọjọ kuro ni gaasi flue, ṣugbọn tun gbe awọn ọja ajile amonia sulfate ti o ga julọ ti a ṣafikun.