화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.11, No.4, 533-539, July, 2005
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Plasma Catalytic Reaction of Methane over Nanostructured Ru/γ-Al2O3 Catalysts in Dielectric-barrier Discharge
Seung-Soo Kim, Junseo Choi1, Jinsoo Kim1, †, Hwaung Lee2, and Hyung Keun Song2
  • Department of Environmental Engineering, Donghae University, Gangwon-do 240-713, Korea
  • 1College of Environment & Applied Chemistry, Kyung hee University, Gyeonggi-do 449-701, Korea
  • 2Clean Technology Center, Korea Institute of Science and Technology, Seoul 136-605, Korea
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Ru/γ-Al2O3 catalysts were prepared by Ru impregnation inside the mesopores of spherical nano-structured γ-Al2O3 granules, which were synthesized by combining the modified Yoldas process and the oil-drop method. The prepared Ru/γ-Al2O3 atalysts were reduced through a novel method using plasma, which we name plasma-assisted reduction (PAR), and then they were used for methane conversion in a dielectric-barrier discharge (DBD). The effects of the Ru loading and cacination temperature on the methane conversion, selectivities, and yields of the products were investigated. The prepared Ru/γ-Al2O3 catalysts were successfully reduced by PAR. The main products of methane conversion were light alkanes (such as C2H6, C3H8, and C4H10) when the catalytic plasma reaction was performed using the Ru/γ-Al2O3 catalyst. Methane conversion was in the range 32~37% depending on the Ru loading and calcination temperature. The highest yield of C2H6 was 8.7% when using 3 wt% Ru/γ-Al2O3 catalysts obtained after calcination at 400 ℃.
Keywords:plasma-assisted reduction;plasma catalytic reaction;dielectric-barrier discharge;Ru catalyst;methane conversion;boehmite sols
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