ACTIVATED DESULFURIZATION AND DENITRATION METHOD BY USING NEW FLUE GAS TREATING AGENT

摘要

PURPOSE:To inexpensively produce a new flue gas treating agent high in performance by adding calcium chloride to a flue gas treating agent consisting of alkaline earth metal carbonate in a specified ratio. CONSTITUTION:This new flue gas treating agent is characterized by adding 1-10wt.% of calcium chloride to a conventional treating agent consisting of alkaline earth metal carbonate. Various methods can optionally be adopted to prepare this new treating agent. For example, a powdery calcium chloride is mixed with a powdery alkaline earth metal carbonate. Or, the calcium chloride in solid, slurry or aq. soln is added to the alkaline earth metal carbonate in slurry form. Further, the slurry mixture is dried and solidified. In this way, the alkaline earth metal carbonate which have been conventionally considered to be active only at high temp. or in water can be activated even at a far lower temp.