Nitric Oxide Removal Using a Manganese Oxide (MnO2) Catalyst and Ozone

Title
Nitric Oxide Removal Using a Manganese Oxide (MnO2) Catalyst and Ozone
Authors
박은석정종수진성민
Keywords
Ozone; MnO2; nitrogen oxides; radical; catalyst; oxidation
Issue Date
2009-07
Publisher
10th Conference on Energy for a Clean Environment
Abstract
This study examined the oxidative removal of nitrogen oxides (NO) using a MnO2 catalyst and ozone. A honeycomb MnO2 catalyst and ozone were used to removal gaseous nitric oxide. There was negligible adsorption of NO on the MnO2 catalyst in this experiment. However, all the NO gas supplied was oxidized to NO2 when 50 ppm ozone and NO were supplied. Ozone decomposed to O* on the MnO2 catalyst bed when added in excess. In addition, NO2, was effectively oxidized to NO3 - by the O* formed from the decomposition of ozone. In particular, there was 83% NO removal efficiency at normal temperatures. It is proposed that the coupling of a MnO2 catalyst with ozone will provide a useful system for removing nitrogen oxides.
URI
http://pubs.kist.re.kr/handle/201004/35840
Appears in Collections:
KIST Publication > Conference Paper
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