A dual-use of DBD plasma for simultaneous NO(x) and SO(2) removal from coal-combustion flue gas.
J Hazard Mater
; 185(2-3): 1280-6, 2011 Jan 30.
Article
em En
| MEDLINE
| ID: mdl-21044816
ABSTRACT
Dielectric barrier discharge (DBD) was investigated for the simultaneous removal of NO(x) and SO(2) from flue gas in a coal-combustion power plant. The DBD equipment was used in either a mode where flue gas was directed through the discharge zone (direct oxidation), or a mode where produced ozonized air was injected in the flue gas stream (indirect oxidation). Removal efficiencies of SO(2) and NO for both methods were measured and compared. Oxidation of NO is more efficient in the indirect oxidation, while oxidation of SO(2) is more efficient in the direct oxidation. Addition of NH(3), has lead to efficient removal of SO(2), due to thermal reaction, and has also enhanced NO removal due to heterogeneous reactions on the surface of ammonium salt aerosols. In the direct oxidation, concentration of CO increased significantly, while it maintained its level in the indirect oxidation.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Dióxido de Enxofre
/
Carvão Mineral
/
Gases
/
Óxido Nítrico
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article