Hydrogen peroxide for flue gas desulfurization

Details Hydrogen peroxide for flue gas desulfurization Hydrogen peroxide for flue gas desulfurization

B - Operations, Transporting

01

D

B01D 53/77 (2006.01) B01D 53/60 (2006.01) B01J 10/00 (2006.01) C01B 17/74 (2006.01) C01B 21/40 (2006.01) C01F 11/46 (2006.01)

Patent

CA 2157644

A system for removing SO2, NO2, and other contaminants from flue gases uses hydrogen peroxide (H2O2) as the reagent to convert the oxides of sulfur and some of the oxides of nitrogen (NO, NO2, etc.) to more stable oxidation states. Acids formed as a result of this conversion, namely sulfuric acid (H2SO4) and nitric acid (HNO3) can then be neutralized with limestone or, alternatively, the sulfuric and nitric acids can be collected and processed for sale as an industrial product.

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