KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Dilute Acid Pretreatment of Woody Hemicellulose Using a Percolation Process

Percolation 공정에 의한 목질계 헤미셀룰로오스의 묽은산 전처리

  • 염동문 (경상대학교 화학공학과 및 생산기술연구소) ;
  • 김성배 (경상대학교 화학공학과 및 생산기술연구소) ;
  • 박순철 (한국에너지기술연구소 바이오매스연구실)
  • Published : 1998.06.01
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Abstract

The dilute-acid pretreatment/hydrolysis of hemicellulose in oak wood using a percolation reactor was investigated. The experimental conditions ranged 160∼180$^{\circ}C$ and 0.05∼0.2 wt.% sulfuric acid. XMG(xylan+mannan+galactan) recovery was higher when sulfuric acid was used as leaching solvent than water. Also it was important for high XMG recovery to keep leaching temperature higher after reaction. XMG recovery was decreased as the size of wood chips was increased. At an optimum condition (reaction condition= 170$^{\circ}C$, 0.1% sulfuric acid, 1ml/min, 10min, leaching condition=0.1% sulfuric acid, 2mL/min, 20 min), the product yield and the sugar concentration were about 92% and 2.7%, respectively.

Keywords

References

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