Patent ID: 6416722
Filing Date: 2002-07-09
Classification: B01D,B01J,Y10S

Abstract:
A desulfurizing apparatus in which a high temperature gas containing sulfur oxides is processed to remove sulfur oxides by converting the sulfur oxides into ammonium compounds with injection of ammonia, said apparatus comprising;a gas cooling device for cooling said high temperature gas by contacting said high temperature gas with recirculating cooling water to obtain a cooled gas; means for recirculating cooling water from a recirculation water tank to said gas cooling device; an ammonia injecting device for injecting ammonia into said cooled gas; and a spraying device located upstream of, at the same position as, or downstream of said ammonia injecting device, for spraying water withdrawn partially from said recirculation water tank, or water withdrawn from said recirculation water tank that is diluted with water into said cooled gas.