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http://dx.doi.org/10.7464/ksct.2015.21.2.130

Production of Dry Oxidant through Catalytic H2O2 Decomposition over Mn-based Catalysts for NO Oxidation  

Jang, Jung Hee (Plant Engineering Center, Institute for Advanced Engineering)
Choi, Hee Young (Plant Engineering Center, Institute for Advanced Engineering)
Han, Gi Bo (Plant Engineering Center, Institute for Advanced Engineering)
Publication Information
Clean Technology / v.21, no.2, 2015 , pp. 130-139 More about this Journal
Abstract
The NO oxidation process has been applied to improve a removal efficiency of NO included in exhaust gas. In this study, to produce a dry oxidant for the NO oxidation process, the catalytic H2O2 decomposition method was proposed. A variety of the heterogeneous solid-acidic Mn-based catalysts were prepared for the catalytic H2O2 decomposition and the effect of their physico-chemical properties on the catalytic H2O2 decomposition were investigated. The results of this study showed that the acidic sites of the Mn-based catalysts has an influence on the catalytic H2O2 decomposition. The Mn-based catalyst having the abundant acidic sites within the wide temperature range in NH3-TPD shows the best performance for the catalytic H2O2 decomposition. Therefore, the NO oxidation efficiency, using the dry oxidant produced by the H2O2 decomposition over the Mn-based catalyst having the abundant acidic properties under the wide temperature range, was higher than the others. As a remarkable result, the best performances in the catalytic H2O2 decomposition and NO oxidation was shown when the Mn-based Fe2O3 support catalyst containing K component was used for the catalytic H2O2 decomposition.
Keywords
Mn-based catalyst; Catalytic $H_2O_2$ Decomposition; Dry oxidant; NO oxidation;
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