Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference (한국펄프종이공학회:학술대회논문집)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Investigation of the Effects of Environment Friendly Digestion Process on the Rice Hull

왕겨의 고도활용을 위한 친환경 고온고압 증해처리 효과

  • Lee, Young-Ju (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam National University) ;
  • Jung, Woong-Ki (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam National University) ;
  • Sung, Yong-Joo (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam National University)
  • 이영주 (충남대학교 환경소재공학과) ;
  • 정웅기 (충남대학교 환경소재공학과) ;
  • 성용주 (충남대학교 환경소재공학과)
  • Published : 2011.04.14
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Abstract

The effects of the high pressure and the high temperature digesting process with water on the properties of rice hull were investigated in this work. Two temperature condition such as $160^{\circ}C$ and $180^{\circ}C$ and thee treatment time such as 15 min, 30 min and 45 min were applied for this treatment. The pH of extract after the digestion process decreased as the temperature and the treatment time of the digestion were increased. The ash content and lignin content were not decreased by the the digestion. The structure of rice hull after digestion treatment became more weak, the better efficiency of the fiberization with PFI-Mill was shown for the digestion treated rice hull with the higher temperature and the longer treatment time.

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