Chun Young N, Kim Seong C
BK 21 Team for Hydrogen Production, Department of Environmental Engineering, Chosun University, Gwangju, South Korea.
J Air Waste Manag Assoc. 2007 Dec;57(12):1447-51. doi: 10.3155/1047-3289.57.12.1447.
This study investigated the reforming characteristics and optimum operating condition of the high-temperature plasma torch (so called plasmatron) for hydrogen-rich gas (syngas) production. At the optimum condition, the composition of produced syngas was 45.4% hydrogen (H2), 6.9% carbon monoxide (CO), 1.5% carbon dioxide (CO2), and 1.1% acetylene (C2H2). The H2/CO ratio was 6.6, hydrogen yield was 78.8%, and the energy conversion rate was 63.6%. To obtain the optimum operating condition, parametric studies were carried out examining the effects of O2/CH4 ratio, steam/CH4 ratio, and Ni catalyst addition in reactor. When the steam/CH4 ratio was 1.23, the production of hydrogen was maximized and the methane conversion rate was 99.7%. The syngas composition was determined to be 50.4% H2, 5.7% CO, 13.8% CO2, and 1.1% C2H2. The H2/CO ratio was 9.7, hydrogen yield was 93.7%, and the energy conversion rate was 78.8%. Hydrogen production with catalyst was effective, compared with no catalyst.
本研究调查了用于生产富氢气体（合成气）的高温等离子体炬（即等离子管）的重整特性和最佳运行条件。在最佳条件下，所生产合成气的组成为：氢气（H₂）45.4%、一氧化碳（CO）6.9%、二氧化碳（CO₂）1.5%、乙炔（C₂H₂）1.1%。H₂/CO比为6.6，氢气产率为78.8%，能量转换率为63.6%。为了获得最佳运行条件，进行了参数研究，考察了O₂/CH₄比、蒸汽/CH₄比以及在反应器中添加镍催化剂的影响。当蒸汽/CH₄比为1.23时，氢气产量最大化，甲烷转化率为99.7%。合成气组成确定为：H₂ 50.4%、CO 5.7%、CO₂ 13.8%、C₂H₂ 1.1%。H₂/CO比为9.7，氢气产率为93.7%，能量转换率为78.8%。与不使用催化剂相比，使用催化剂制氢效果显著。
