Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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Study on Crude Oil Productions and its practice with Rice hull As Treated in Various Supercritical Solvents on Application of Liquefaction Technology

Liquefaction technology 적용 시 왕겨를 이용한 Crude oil 생산 및 적용 연구

  • Shin, JoungDu (Department of Climate Change & Agricultural Ecology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Baek, Yi (National Institute of Horticultural Herbal Science, Rural Development Administration) ;
  • Hong, Seung-Gil (Department of Climate Change & Agricultural Ecology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kwon, Soon-Ik (Department of Climate Change & Agricultural Ecology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Park, Woo-Kyun (Department of Climate Change & Agricultural Ecology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Park, SangWon (Department of Research Project Development, Rural Development Administration)
  • 신중두 (국립농업과학원 기후변화생태과) ;
  • 백이 (국립원예특작과학원) ;
  • 홍승길 (국립농업과학원 기후변화생태과) ;
  • 권순익 (국립농업과학원 기후변화생태과) ;
  • 박우균 (국립농업과학원 기후변화생태과) ;
  • 박상원 (농촌진흥청 연구개발과)
  • Received : 2010.03.16
  • Accepted : 2010.03.29
  • Published : 2010.03.31
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Abstract

Supercritical treatment of liquefaction technology for rice hull was investigated the biomass conversion rate and evaluated its crude oil in respect to feasibility of burner in order to heat the green house. The reaction was carried out in a 5,000 mL liquefaction system with dispenser and external electrical furnace. Raw materials (160 g) of rice hull and 3,000 mL of different solvents were fed into the reactor. It was observed that the maximum crude oil yield was about 84.4 % with 1-butanol. The calorific value of crude oil from ethanol solvent were 7,752 kcal/kg. Furthermore, in case study of co-solvent with ethanol and bulk-glycerol, it observed that more than 80 % of rice hull was decomposed and liquefied in its solvent at $315{\sim}326^{\circ}C$ for 30 min. For the development of applicable bio-fuel from rice hull, it was considered that its feasibility is necessary to be carried out for co-solvent soluble portions. Regarding to utilize the crude oil into burner as fuel, it was observed that its calorific value was lower at approximately 24 % than the diesel. Also, flame length from crude oil at lower temperature was decreasing due to incomplete incineration. The temperature of warm wind on the burner was maintained between 63 and $65^{\circ}C$, and the temperature of emission line was appeared at $350{\sim}380^{\circ}C$.

청정녹색 액체 연료를 생산하기 위하여, 에탄올에 Bulk-glycerol을 6:4로 혼합하여 용매로 사용한 경우, 반응시간 30 분 동안에 반응온도 $315{\sim}326^{\circ}C$범위에서 왕겨 80 %이상이 분해되어 액화된 것으로 나타났다. 특히 부탄올을 용매로 사용했을 경우 바이오매스 전환율이 84.4 %로 가장 높게 나타났다. Crude oil을 연료로 이용한 기존 온풍난방기의 난방특성을 분석한 결과 Crude oil의 발열량이 대체적으로 경유보다 약 24 % 낮았으며, 특히 오일온도가 낮을 경우 불안전연소로 인한 매연이 나타났으며 화염의 불꽃길이도 줄어들었음을 알 수 있었다. 온풍온도는 $63{\sim}65^{\circ}C$를 유지하였으며 배기가스온도는 $350{\sim}380^{\circ}C$의 범위를 나타났다.

Keywords

References

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