Pilot-Scale Evaluation of H 2 O 2 Injection to Control NO x Emissions
| Autor: | Christian A. Clausen, John D. Dietz, C. David Cooper, Michelle M. Collins, Loubna M. Tazi |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
inorganic chemicals
Flue gas Wet scrubber Environmental Engineering Waste management food and beverages Combustion Pulp and paper industry chemistry.chemical_compound Pilot plant chemistry Oxidizing agent Environmental Chemistry Hydrogen peroxide Flue NOx General Environmental Science Civil and Structural Engineering |
| Zdroj: | Journal of Environmental Engineering. 127:329-336 |
| ISSN: | 1943-7870 0733-9372 |
| DOI: | 10.1061/(asce)0733-9372(2001)127:4(329) |
| Popis: | Nitric oxide (NO) in combustion flue gasses can be converted to higher oxidation states by the injection of aqueous solutions of hydrogen peroxide (H2O2) into the hot flue gases. The NO is oxidized to NO2, HNO2, and HNO3, which can then be removed in a wet scrubber. A pilot plant system that was designed, constructed, and operated at Kennedy Space Center confirmed previous results that H2O2 is very effective at oxidizing NO; conversions of NO above 90% were obtained at temperatures of about 500°C (930°F) using mole ratios of H2O2:NOx slightly above 1.0. The mole ratios of H2O2/NOx needed to obtain high conversions of NO were significantly lower in the pilot plant that they had been in previous laboratory studies, demonstrating that this process can be an economically feasible method for NOx control. The position of the injector and the type of atomization were very important to the efficient utilization of peroxide. When SO2 was present in the flue gas, both NO and SO2 were oxidized without increasing the... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|