METHOD OF REDUCING SULFUR DIOXIDE EMISSIONS OF A CIRCULATING FLUIDIZED BED BOILER

摘要

The present invention is a sulfur-containing carbonaceous fuel comprising: supplying to the furnace (12) (26); Ca / S molar ratio is at least about 0.6 and 1.2, the speed is less than, or at least about 0.355 in increments of sulfur-supplying calcium carbonate with a low enough speed to provide a reduced speed in the furnace (28); Combusting the fuel so that the sulfur oxidation step, firing the calcium carbonate to form a calcium dioxide, sulfur dioxide, sulfuric acid phase using the crystallized calcium dioxide; Step for discharging the flue gas within the flue gases and entrained particles from the furnace; Separating particles from the flue gas (14); Step back norovirus particles are separated; And downstream of the furnace, including the step of further reducing the sulfur content of the flue gas, to a fluidized bed boiler to reduce the sulfur dioxide emissions of 10 circulating method.