Closed loop incineration process

Co-combustion of waste sludge in municipal waste combustors...

Coal additives

Coal and char burner

Coal balancing damper

Coal burning arrangement

Coal burning method to reduce particulate and sulfur emissions

Coal burning method to reduce particulate and sulfur emissions

Coal burning process

Coal combustion process

Coal combustion process for SO.sub.x and NO.sub.x control

Coal combustion products recovery process

Coal combustion to produce clean low-sulfur exhaust gas

Coal combustion to produce clean low-sulfur exhaust gas

Coal fired furnace light-off and stabilization using microfine p

Coal firing furnace and method of operating a coal-fired furnace

Coal pulverizer associated with a rotary classifier and method f

Coal slagging burner for producing clean low-sulfur fuel gas

Coal-fired combined plant

Combined positive controlled sludge dryer and burner