바이오가스에서 CO₂ /CH₄ 활용에 관한 반응최적화 연구

• Published in: 한국수소및신에너지학회논문집 Vol. 27; no. 5; pp. 554 - 561
• Main Authors: 고동현(Donghyun Kho), 조욱상(Wooksang Cho), 백영순(Youngsoon Baek)
• Format: Journal Article
• Language: Korean
• Published: 한국수소및신에너지학회 01.10.2016
• Subjects: 기계공학; 합성가스; Synthesis Gas; NiO/Al₂O₃ catalyst; 매립지 가스; 메탄 개질반응; Methane Reforming; CO₂ Dry Reforming; 바이오가스; LFG; Bio-gas
• ISSN: 1738-7264; 2288-7407
• DOI: 10.7316/KHNES.2016.27.5.471

Depending on the Bio-gas sources, main component gases of CH4 and CO2 are shown to be variouslypresent in amounts. For the anaerobic digester, The concentration of CH4 and CO2 in the gases are 60~70 and30~35 vol%. For the landfill gas, CH4 and CO2 are 40~60 and 40~60 vol%. For the food wastes, CH4 and CO2are 60~80 and 20~40 vol%, respectively. In this study, maximum conversion rates of CO2 were obtained fromthe variety of concentrations of CH4 and CO2 by the catalysts of reforming reactions. Moreover, in order to getmaximum producing amount of synthetic gas, experimental studies were performed to optimize the reactionvariables. On the basis of CH4, 243 ml, R [CH4/(O2+CO2)] value were varied from 0.8 to 1.35, in the study ofCH4 and CO2 reforming reactions. It was shown that the optimal results were obtained for 1.35 of R value. Andalso, at 850°C and 1 atm, the production rate of synthetic gas was 90% and the conversion rates of CH4 andCO2 were higher than 99% and 90%, respectively. KCI Citation Count: 1