SIMULTANEOUS REMOVAL OF NOx AND SOx FROM FLUE GAS BY USE OF MOLTEN HYDROGENSULFATES AS REACTION MEDIA
The simultaneous removal of NOx and SOx by reaction with ammonia from flue gas was found to be attained at temperature ranging from 150 to 200°C in molten salts of hydrogensulfates dissolving V2O5. The addition of transition metal sulfates such as Ti(SO4)2, Zr(SO4)2 or CuSO4 led to a marked increase in the SOx removal.