Effects of Wastes on the Characteristic of Sulfur Release During Coal Combustion

Effects of wastes and limestone on the characteristic of sulfur release were studied by means of flue gas analyzer and the high temperature tube reactor. Pore structure was investigated respectively by mercury porosimeter. The result shows that white clay and carbide slag could capture the release of sulfur at 800-1100degC. Salt slurry and red mud could capture the release of sulfur at first stage at 800~900degC. But when the experimental temperature rise to 1000degC, the sulfur capture abilities of them depress. Wastes represent good pore structure characteristics. This makes the sulfation reaction goes further. Wastes have good sulfur capture ability.