Method of removing sulfur oxides and nitrogen oxides by dry process

摘要

This invention relates to a method of removing sulfur and nitrogen oxides by a dry process comprising passing a waste gas through a bed of a carbonaceous adsorbent to remove sulfur oxides and adding ammonia to remove nitrogen oxides, characterized in that at least two carbonaceous adsorbent beds are used and the carbonaceous adsorbent used mainly for removal of sulfur oxides is further used for treatment of the waste gas leaving the final carbonaceous adsorbent bed to remove the ammonia.