Methane conversion over nanostructured Pt/γAl2O3 catalysts in dielectric-barrier discharge |
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| Authors: | Seung-Soo Kim Jinsoo Kim Hwaung Lee Byung-Ki Na Hyung Keun Song |
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| Affiliation: | (1) Department of Environmental Engineering, Donghae University, 119, Jiheung-dong, Donghae, 240-713 Gangwon-do, Korea;(2) College of Environment & Applied Chemistry, Kyung Hee University, Yongin-si, 449-701 Kyunggi-do, Korea;(3) Clean Technology Center, Korea Institute of Science and Technology, Cheongryang, P.O. BOX 131, 136-650 Seoul, Korea;(4) School of Chemical Engineering, ChungBuk National University, San 48, Gaeshin-dong, Heungduk-gu, Cheongju, 371-763 Chungbuk, Korea |
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| Abstract: | Spherical nanostructured γ-Al2O3 granules were prepared by combining the modified Yoldas process and oil-drop method, followed by the Pt impregnation inside
mesopores of the granules by incipient wetness method. Prepared Pt/γ-Al2O3 catalysts were reduced by novel method using plasma, which was named plasma assisted reduction (PAR), and then used for methane
conversion in dielectric-barrier discharge (DBD). The effect of Pt loading, calcination temperature on methane conversion,
and selectivities and yields of products were investigated. Prepared Pt/γ-Al2O3 catalysts were successfully reduced by PAR. The main products of methane conversion were the light alkanes such as C2H6, C3H8 and C4H10 when the catalytic plasma reaction was carried out with Pt/γ-Al2O3 catalyst. Methane conversion was in the range of 38–40% depending on Pt loading and calcination temperature. The highest
yield of C2H6 was 12.7% with 1 wt% Pt/γ-Al2O3 catalysts after calcinations at 500 ‡C. |
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| Keywords: | Plasma-assisted Reduction Dielectric-barrier Discharge Pt Catalyst Methane Conversion Non-thermal Plasma Boehmite Sols |
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