Patent ID: 6045770
Filing Date: 2000-04-04
Classification: B01J,C01B

Abstract:
A flue gas conditioning system for conditioning the flue gas flowing in a flue from a boiler to an electrostatic precipitator by injecting sulfur trioxide into the flue gas upstream of the electrostatic precipitator, comprising:a. a source of granulated sulfur;b. a sulfur furnace for combusting the granulated sulfur to generate gaseous sulfur dioxide;c. transport means coupled to the source of granulated sulfur and the sulfur furnace for transporting the granulated sulfur to the sulfur furnace;d. a catalytic converter coupled to the sulfur furnace for generating sulfur trioxide from the sulfur dioxide generated by the sulfur furnace, the catalytic converter receiving sulfur dioxide from the sulfur furnace at sufficient pressure to force the sulfur dioxide through the catalytic converter to generate sulfur trioxide; ande. a plurality of injection probes mounted in the flue duct upstream of the electrostatic precipitator and coupled to the catalytic converter for injecting the sulfur trioxide generated by the catalytic converter into the flue gas flowing through the flue duct.