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Steam reforming of methane in a solar receiver reactor  

Kim, Ki-Man (Dept. of Chemical Eng, Sungkyunkwan University)
Han, Gui-Young (Dept. of Chemical Eng, Sungkyunkwan University)
Seo, Tae-Beom (Dept. of mechanical Eng, Inha University)
Kang, Yong-Heack (Korea Inst. of Energy Research)
Publication Information
Journal of the Korean Solar Energy Society / v.27, no.1, 2007 , pp. 75-81 More about this Journal
Abstract
Steam reforming of methane using Xe-arc solar simulator was studied for the application of concentrated solar energy into chemical reaction. The reactor, a volumetric absorber, consisted of a porous ceramic foam disk coated with commercial reforming catalyst. Operating temperature was in the range of $450\;-\;550^{\circ}C$ and the excess steam ratio to methane was from 3.0 to 5.0. At the steady-state condition, the conversion of methane Increased with temperature in the range of 15 % - 30 % and the experimentally determined conversion was found to be close to theoretical equilibrium conversion. It was also found that the CO selectivity slightly decreased with excess steam ratio. Finally, the conversion of methane decreased significantly with space velocity of reactants.
Keywords
Thermochemical heat storage; Steam reforming of methane; Solar Heat Storage; hydrogen production;
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