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International Journal of Energy for a Clean Environment
SJR: 0.195 SNIP: 0.435 CiteScore™: 0.74

ISSN 印刷: 2150-3621
ISSN オンライン: 2150-363X

International Journal of Energy for a Clean Environment

Formerly Known as Clean Air: International Journal on Energy for a Clean Environment

DOI: 10.1615/InterJEnerCleanEnv.v10.i1-4.70
pages 121-133

NO REDUCTION BY SELECTIVE NONCATALYTIC REDUCTION USING AMMONIA-EFFECTS OF ADDITIVES

D. Quang Dao
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A), UMR CNRS 8522, Université Lille 1 — Sciences et Technologies, 59655, Villeneuve d'Ascq Cedex, France
Laurent Gasnot
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A), UMR CNRS 8522, France
A. El Bakali
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A), UMR CNRS 8522, Université Lille 1 — Sciences et Technologies, 59655, Villeneuve d'Ascq Cedex, France
J. F. Pauwels
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A), UMR CNRS 8522, Université Lille 1 — Sciences et Technologies, 59655, Villeneuve d'Ascq Cedex, France

要約

An experimental study of nitric oxide removal by selective noncatalytic reduction (SNCR) using ammonia as reducing agent has been performed in a semi-industrial reactor over the temperature range 973−1200 K. Several chemical compounds, such as CH4, C2H4, C2H6, CH3OH, C2H5OH, and CO, which are usually used in the literature as additives for the SNCR process, have been evaluated. As a result, very high efficiencies (up to 82%) have been achieved in our optimal experimental conditions with the classical SNCR process. The additives seem to make the NO reduction process more effective at lower temperatures. These additives induce a downward shift (up to more than 100 K) of the optimal temperature window for the reduction process, and a slight decrease of the maximum NO reduction level depending on the species and on the additive concentration. The additive utilization effectively decreases residual NH3 emissions.