GAS BURNER

摘要

A method for conditioning flue gas to improve the removal of fly ash by an electrostatic precipitator employs a relatively high concentration (4-71/2 %) of SO3 conditioning agent. The SO3 is formed by combusting sulfur and excess air in a sulfur burner to produce a mixture of air and SO2 and converting the SO2 to SO3 in a catalytic converter. The ratio of air to sulfur is maintained constant over a wide range of SO3 production rates, and the air is unheated during most production rates. The mixture of air and SO2 from the sulfur burner is cooled without increasing the volume of the gaseous mixture.