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Steam Gasification Characteristics of Wood Pellet  

Hwang, Hoon (Seoul National University of Science & Technology)
Lee, Moon-Won (Seoul National University of Science & Technology)
Choi, Sun-Yong (Research Institute of Energy and Environment, Seoul National University of Science & Technology)
Kim, Lae-Hyun (Seoul National University of Science & Technology)
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Abstract
Hydrogen is a clean and efficient energy source and is expected to take an important role in future energy demand. A possibly good route to produce hydrogen is by using biomass and organic wastes as a source through thermo-chemical conversion technology. In this study, pyrolysis of wood Pellet(Oregon pine) has been carried out in batch type fixed-bed reactor in $N_2$ atmosphere during 20 minutes to determine the optimum hydrogen generating conditions. At the influence of temperature, hydrogen yield was increased with increasing temperature. For the influence of Steam/Biomass Ratio(SBR), hydrogen yield was increased by steam addition at low temperature condition. However, effect of steam addition was insignificant over at SBR = 1. The hydrogen yield was increased with increasing SBR at high temperature condition. From result of $H_2$/CO and $H_2/CH_4$ ratio, dominant reaction was steam reforming in this experimental condition. The optimum condition for hydrogen production was determined as follows: $H_2$ yield = 38.3 vol.% (56.01 L/min kg) at $900^{\circ}C$, SBR=3.
Keywords
Biomass; Pylorysis; Steam gasification; Wood pellet; Hydrogen;
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