Process for preventing the formation of harmful organic...

Details Process for preventing the formation of harmful organic... Process for preventing the formation of harmful organic...

B - Operations, Transporting

01

D

B01D 53/34 (2006.01) B01D 53/64 (2006.01) B01D 53/70 (2006.01)

Patent

CA 2101429

11 ABSTRACT For the reduction of the formation of dioxin and/or furan it is suggested to increase the SO3/SO2 ratio in the combustion gas so that a minimum SO3 content of 10 mg/m3 is obtained. The maximum content therein is not to exceed 500 mg/m3. The ratio SO3/SO2 can be modified by adding SO3 or also catalysts or oxidizing agents which convert SO2 to SO3 while maintaining the same total quantity of sulfur. Constructionally is suggested a steam generator whose steel structures coming into contact with the combustion gases are either alloyed with tungsten and/or vanadium or are coated at the combustion-gas side.

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