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Production of Hydrogen Gas by Thermochemical Transition of Lauan in Fixed Bed Gasification  

Jung, Hye-Jin (Graduate School of Energy and Environment, Seoul National University of Technology)
Kim, Chul Ho (Graduate School of Energy and Environment, Seoul National University of Technology)
Son, Jae-Ek (Graduate School of Energy and Environment, Seoul National University of Technology)
Kim, Lae-Hyun (Graduate School of Energy and Environment, Seoul National University of Technology)
Shin, Hun Yong (Department of Chemical Engineering, Seoul National University of Technology)
Publication Information
Applied Chemistry for Engineering / v.19, no.2, 2008 , pp. 209-213 More about this Journal
Abstract
The fixed bed gasification reactor with 1 m hight and 10.2 cm diameter was utilized for the hydrogen production from biomass wastes. Lauan sawdust was used for non-catalytic and catalytic gasification reaction as a sample in the fixed bed reactor. The fixed bed temperature and catalyst are the major variables affecting the process operation. Thus, the effect of fixed bed temperature and the catalysts on gas composition were studied at the temperature range from $400^{\circ}C$ to $700^{\circ}C$. The yield of hydrogen was increased at higher temperature in the fixed bed reaction. Fractions of hydrogen, carbon monoxide and methane gas in the product gas increased when sodium carbonate ($Na_2CO_3$) and potassium carbonate ($K_2CO_3$) catalysts were used. Furthermore, sodium carbonate catalyst was more effective to obtain higher hydrogen yield compared to potassium carbonate catalyst.
Keywords
biomass waste; hydrogen; sodium carbonate; potassium carbonate;
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