Effects of CH{sub 4} and CO on the reduction of nitric oxide to nitrogen in a discharge reactor
- National Kaohsiung University of Applied Sciences, Kaohsiung (Taiwan). Department of Chemical and Material Engineering
Additives are often added to enhance the efficiency of NO removal. This study uses a radio frequency (rf) discharge to consider the effect of added CH{sub 4} and CO to simulated NO/N{sub 2}/O{sub 2}/H{sub 2}O mixtures on the elevation of NO conversion and the reduction of NO into N{sub 2}. The enhancement levels of NO conversion when using various additives were found to be in this order: +CH{sub 4}>+CO>no additive. NO conversion reached 99.3%, 86.2%, and 77.6% when adding CH{sub 4}, CO, and without additive, respectively, at inlet additive/NO molar ratio (R) = 5 and at 120 W. Moreover, the fraction of total N atoms converted from NO into N{sub 2} (F{sub N2}) was very high, reaching 99.4% and 99.5% when adding CH{sub 2}4 and CO, respectively, at R = 1 and at 120 W. The better operating conditions are using CH{sub 4} as the additive at R = 1 and a power of >60 W to reach a higher NO conversion with a higher F{sub N2}. However, it should be noted that this rf plasma approach is not practical at this stage because of its relative low pressure. 25 refs., 2 figs., 3 tabs.
- OSTI ID:
- 20847483
- Journal Information:
- Journal of the Air and Waste Management Association, Vol. 57, Issue 1; Other Information: chtsai@cc.kuas.edu.tw; ISSN 1047-3289
- Country of Publication:
- United States
- Language:
- English
Similar Records
Solid hydrocarbon aerosols produced in simulated Uranian and Neptunian stratospheres
PILLARED CLAYS AS SUPERIOR CATALYSTS FOR SELECTIVE CATALYTIC REDUCTION OF NITRIC OXIDE