Pretreatment Characteristics of Waste Oak Wood by Ammonia Percolation |
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| Authors: | Jun-Seok Kim Hyunjoon Kim Jin-Suk Lee Joon-Pyo Lee Soon-Chul Park |
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| Institution: | (1) Department of Chemical Engineering, Kyonggi University, Suwon, 443-760, South Korea;(2) Bioenergy Research Center, KIER 71-2 Jang-dong, Daejeon, 305-343, South Korea |
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| Abstract: | A log of waste oak wood collected from a Korean mushroom farm has been tested for ammonia percolation pretreatment. The waste
log has different physical characteristics from that of virgin oak wood. The density of the waste wood was 30% lower than
that of virgin oak wood. However, there is little difference in the chemical compositions between the woods. Due to the difference
in physical characteristics, the optimal pretreatment conditions were also quite different. While for waste oak the optimum
temperature was determined to be 130°C, for virgin oak wood the optimum pretreatment was only achieved at 170°C. Presoaking
for 12 h with ammonia solution before pretreatment was helpful to increase the delignification efficiency.
Presented at the 29th Symposium on Biotechnology for Fuels and Chemicals |
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| Keywords: | Waste oak wood Pretreatment Ammonia Enzymatic hydrolysis Lignin |
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