COMBUSTION PROCESSING FOR REDUCING AIR POLLUTED MATTER IN FLUE GAS

摘要

PURPOSE: To reduce the emission of contaminants by burning a solid carbonaceous material in the presence of an alkali metallic salt and in the absence of circulating flue gas and converting NOx emitted during the burning into N2 . CONSTITUTION: A solid carbonaceous material such as coal or oil shale is carried to a burner 16 by primary air and burned with combustion air supplied by a fan 18 or a blower 20. This burning is carried out in the presence of a group IA alkali metallic salt selected from NaCl, KCl, LiCl, KBr, LiBr and NaBr and in the absence of circulating flue gas, NOx emitted during the burning is converted into N2 and SOx is also converted into a sulfate-contg. compd.