*1Yokohama R&D Center, Mitsubishi Heavy Industries, Ltd. 12, Naka-ku, Nishiki-Cho, Yokohama, 231, Japan
*2Yokohama Dockyard & Machinery Works Mitsubishi Heavy Industries, Ltd. 12, Naka-ku, Nishiki-Cho, Yokohama, 231, Japan
Abstract:
In the range 670 to 900°C furnace temperature, dioxin concentrations strongly depended upon the oxygen concentration in the flue gas. In keeping the oxygen concentration at apploximately 12 percent, dioxin was reduced in the flue gas. For further dioxin reduction from the flue gas, it was the most effective process to treat the flue gas with bag filter system with 120 C operation.