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Solar CO₂-Reforming of Methane Using a Catalytically-Activated Metallic Foam Absorber
신일융(Shin Il-yoong),이진규(Lee Jin-Gyu),Nobuyuki Gokon,Tatsuya Kodama,서태범(Seo Tae-Beom) 한국태양에너지학회 2010 한국태양에너지학회 학술대회논문집 Vol.2010 No.11
Solar reforming of methane with CO₂ was successfully tested with a direct irradiated absorber on a parabolic dish capable of 5㎾<SUB>th</SUB> solar power. The new type of catalytically activated metallic foam absorber was prepared, and its activity was tested. Ni was applied as the active metal on the gamma-alumina coated Ni metal foam for the preparation of the catalytically-activated metal foam layer. Compared to conventional direct irradiation of the catalytically-activated ceramic foam absorber, this new metallic foam absorber is found to exhibit a superior reaction performance at the relatively low insolation or at low temperatures. In addition, unlike direct irradiation of the catalytically-activated ceramic foam absorber, metallic foam absorber has better thermal resistance, which prevents the emergence of cracks caused by mechanical or thermal shock. The total solar power absorbed reached up to 2.1㎾ and the maximum CH₄ conversion was almost 40%.