Kinectrics is testing its proprietary mercury control method at CanMet's (Energy, Mines and Resources - Canada) facilities in a gas-fired kiln using oxidants as the oxidizing agent. The effects of different parameters such as the oxidants,sulfur dioxide, ash, their concentration levels, as well as temperature and injection location on mercury speciation are being investigated.

The coal flue gas was simulated using natural gas to reduce the complexity of the process so that the basic reaction mechanisms involved could be directly investigated. Mercury speciation in the flue gas, flue gas composition and process operating conditions are important factors in determining mercury removal.

The results from this experiment show that oxidation as well absorption behavior is dependent on mercury species, gas components such as sulfur dioxide and oxidant compounds. Moreover, the results confirm that the oxidants can effectively oxidize elemental mercury, while sulfur dioxide adversely affects this oxidation process in the simulated coal flue gas.

For more information:

Rene Mangal, 416.207.6000 x6162,   rene.mangal@kinectrics.com