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수소 생산을 위한 Cu/ZnO/Al₂O₃ 촉매상에서 DME의 수증기 개질 반응 연구
변현승(HYUNSEUNG BYUN),구윤지(YUNJI KU),오주희(JUHEE OH),반재성(JAESUNG BAN),나영진(YOUNGJIN RAH),이제설(JESEOL LEE),조원준(WONJUN CHO) 한국수소및신에너지학회 2023 한국수소 및 신에너지학회논문집 Vol.34 No.6
As the development of alternative energy is required due to the depletion of fossil fuels, interest in the use of hydrogen energy is increasing. Hydrogen is a promising clean energy source with high energy density and can lead to the application of environmentally friendly technologies. However, due to difficulties in production, storage, and transportation that prevent the application of hydrogen-based eco-friendly technology, research on reforming reactions using dimethyl ether (DME) is being conducted. Unlike other hydrocarbons, DME is attracting attention as a hydrogen carrier because it has excellent storage stability and transportability, and there is no C-C bond in the molecule. The reaction between DME and steam is one of the reforming processes with the highest hydrogen yield in theory at a temperature lower than that of other hydrocarbons. In this study, a hydrogen reforming device using DME was developed and a catalyst prepared by supporting Cu in alumina was put into a reactor to find optimal hydrogen production conditions for supplying hydrogen to fuel cells while changing reaction temperature (300-500℃), pressure (5-10 bar), and steam/carbon ratio (3:1 to 5:1).