산화제 공급 방법에 따른 메탄올-산소 촉매연소기 특성

• Published in: 한국수소 및 신에너지학회 논문집 Vol. 31; no. 1; pp. 82 - 88
• Main Authors: 지현진(HYUNJIN JI), 이정훈(JUNGHUN LEE), 최은영(EUNYEONG CHOI), 양성호(SUNGHO YANG)
• Format: Journal Article
• Language: Korean
• Published: 한국수소및신에너지학회 2020
• Subjects: 기계공학; Methanol(메탄올); Oxygen(산소); Catalytic burner(촉매연소기); Fuel reforming plant(연료 개질 플랜트); Flashback(역화)
• ISSN: 1738-7264; 2288-7407

Recently, a fuel reforming plant for supplying high purity hydrogen has been studied to increase the operation time of underwater weapon systems. Since steam reforming is an endothermic reaction, it is necessary to continuously supply heat to the reactor. A fuel reforming plant needs a methanol-O2 catalytic burner to obtain heat and supply heat to the reformer. In this study, two types of designs of a catalytic burner are presented and the results are analyzed through the experiments. The design of the catalytic burner is divided into that the O2 supply direction is perpendicular to the methanol flow direction (Design 1) and the same as the methanol flow direction (Design 2). In case of Design 1, backfire and flame combustion occurred in the mixing space in front of the catalyst, and in the absence of the mixing space, combustion reaction occurred only in a part of the catalyst. For above reasons, Design 1 could not increase the exhaust gas temperature to 750℃. In Design 2, no flashback and flame combustion were observed, the exhaust gas could be maintained up to 750℃. However, the O2 distributor was exposed to high temperatures, resulting in thermal damage.