Catalytic Oxidation of NO on MnO2 in the presence of Ozone

Title
Catalytic Oxidation of NO on MnO2 in the presence of Ozone
Authors
진성민정종수이재헌정주영
Keywords
Manganese Oxide; Ozone; Radical; Oxidation; 망간 촉매
Issue Date
2009-04
Publisher
한국환경과학회지
Citation
VOL 18, NO 4, 445-450
Abstract
In this study, the fundamental experiments were performed for catalytic oxidation of NO (50 ppm) on MnO2 in the presence of ozone. The experiments were carried out at various catalytic temperatures (30-120℃) and ozone concentrations (50-150 ppm) to investigate the behavior of NO oxidation. The honeycomb type MnO2 catalyst was rectangular with a cell density of 300 cells per square inch. Due to O3 injection, NO reacted with O3 to form NO2, which was adsorbed at the MnO2 surface. The excessive ozone was decomposed to O3 onto the MnO2 catalyst bed, and then that O3 was reacted with NO2 to form NO­-3. It was found that the optimal O3/NO ratio for catalytic oxidation of NO on MnO2 was 2.0, and the NO removal efficiency on was MnO2 83% at 30℃. As a result, NO was converted mainly to NO­-3.
URI
http://pubs.kist.re.kr/handle/201004/35230
ISSN
1225-4517
Appears in Collections:
KIST Publication > Article
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