PM Reduction from Combustion of Coal Oil Emulsion - Effect of 2^nd Stage Combustion

Abstract

 The steady combustion of coal fuel was successfully conducted in a laboratory scale combustion furnace, and the formation of particulate matter was investigated. Combustion resulted in a high concentration of particulate matter. To reduce the formation of particulates, secondary combustion was proposed. An afterburner made from stainless steel pipe with a diameter of 300 mm was placed between the second and third stages from the burner. Holes at the pipe were 1.5 mm in diameter. Secondary combustion influenced both combustion and particulate formation. As a result, the concentration of particulate matter in the exhaust gas was reduced.