still, at the same time, for avlegsnande of sulphur oxides and kveveoxider from exhaust gas

摘要

Nitrogen oxides, or both sulfur oxides and nitrogen oxides are efficiently and economically removed from exhaust gas containing the same with an aqueous scrubbing suspension of alkaline earth metal compounds. The aqueous scrubbing suspension of alkaline earth metal compounds further contains (a) thiourea or thiosulfates or mixtures thereof and (b) copper ion or iron ion or a mixture thereof.