반탄화 처리를 통한 낙엽송과 백합나무의소수성 개선 연구
Upgrading of the Hydrophobicity of Larix kaempferi and Liriodendron tulipifera via Torrefaction
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초록
In this study, the torrefaction process of Larix kaempferi and Liriodendron tulipifera was carried out to upgrade itshydrophobicity and the fuel characteristics of the woody biomass. The torrefaction process was performed at 200~300°C for 30 min ina high temperature tube furnace. The results of elemental analysis, calorific value, weight loss, and energy yield revealed significantincreases in carbon content, calorific value, and weight loss. On the other hand, the mass and energy yield were decreased. FT-IRspectral analysis and hygroscopic tests were performed to confirm the enhanced hydrophobicity from the torrefaction treatment. The peaksat approximately 3,400 cm-1, which represent the O-H stretch, decreased as the torrefaction temperature increased. The hygroscopicityof Larix kaempferi and Liriodendron tulipifera were reduced by 41% and 53% from the hygroscopic test, respectively. Overall, thefuel characteristics and hydrophobicity of Larix kaempferi and Liriodendron tulipifera can be upgraded by the torrefaction process.
Abstract
In this study, the torrefaction process of Larix kaempferi and Liriodendron tulipifera was carried out to upgrade itshydrophobicity and the fuel characteristics of the woody biomass. The torrefaction process was performed at 200~300°C for 30 min ina high temperature tube furnace. The results of elemental analysis, calorific value, weight loss, and energy yield revealed significantincreases in carbon content, calorific value, and weight loss. On the other hand, the mass and energy yield were decreased. FT-IRspectral analysis and hygroscopic tests were performed to confirm the enhanced hydrophobicity from the torrefaction treatment. The peaksat approximately 3,400 cm-1, which represent the O-H stretch, decreased as the torrefaction temperature increased. The hygroscopicityof Larix kaempferi and Liriodendron tulipifera were reduced by 41% and 53% from the hygroscopic test, respectively. Overall, thefuel characteristics and hydrophobicity of Larix kaempferi and Liriodendron tulipifera can be upgraded by the torrefaction process.
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