METHOD OF TREATING TAIL GAS AND METHOD OF Manufacturing SODIUM bICARBONATE THEREFROM

摘要

A method for treating an exhaust gas including hydrogen sulfide and carbon dioxide, the method comprising: supplying ammonia gas to the exhaust gas to generate ammonium hydrogen carbonate in a solid form; Thermally decomposing the solid ammonium hydrogen carbonate to separate and remove the liquid ammonium hydrogen carbonate; Reacting the liquid ammonium hydrogen carbonate with sodium chloride to produce sodium hydrogen carbonate and ammonium chloride in solid form; Separating the solid form of sodium hydrogen carbonate and the ammonium chloride; Reacting the separated ammonium chloride with calcium hydroxide to generate ammonia gas; Supplying the generated ammonia gas as ammonia gas in the step of generating ammonium hydrogen carbonate by supplying ammonia gas to the exhaust gas. Such a treatment method provides an economical and efficient exhaust gas treatment method.