Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
권호 표지

Influence of Reaction Temperature on Bio-oil Production from Rice Straw by the Pyrolysis

볏짚으로부터 바이오오일 생산에 대한 열분해 반응온도의 영향

  • Kang Bo-Sung (Faculty of Environmental Engineering, University of Seoul) ;
  • Park Young-Kwon (Faculty of Environmental Engineering, University of Seoul) ;
  • Kim Joo-Sik (Faculty of Environmental Engineering, University of Seoul)
  • 강보성 (서울시립대학교 환경공학부) ;
  • 박영권 (서울시립대학교 환경공학부) ;
  • 김주식 (서울시립대학교 환경공학부)
  • Published : 2006.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

Rice straw is one or the main renewable energy sources in Korea. Bio-oil is produced from rice straw with a lab-scale equipment mainly with a fluidized bed and a char removal system. It was investigated how the reaction temperature affected the production of bio-oil and the efficiency of a char removal system. To elucidate how the temperature depended on the production of bio-oil, experiments were conducted at $466^{\circ}C,\;504^{\circ}C\;and\;579^{\circ}C$, respectively. The mass balance was established in each experiment, and the produced gas and oil were analyzed with the aid of GCs and a GC-MS system. The char removal system is composed of a cyclone and a hot filter. Tn the experiments, we observed that the production of bio-oil was decreased with temperature, and the bio-oil contained very useful chemicals.

볏짚은 국내에서 유용한 재생 가능한 바이오매스이다. 유동층과 char 분리 장치가 구비된 급속 열분해 장치를 이용하여 볏짚으로부터 바이오오일의 생산에 대한 실험을 수행하였다. 본 연구는 온도변화에 따른 볏짚의 열분해 생성물의 분포와 생성물의 화학적 구성을 알아보고 바이오오일의 활용 가능성을 고찰하고자 했다. 급속 열분해 반응은 $466^{\circ}C,\;504^{\circ}C,\;579^{\circ}C$에서 각각 수행되었다. 유동화 매체로는 생성가스를 사용하였으며 유량은 약 30NL/min 였다. 볏짚의 열분해 결과 기체, 액체, 고체 물질을 얻을 수 있었으며, 기체물질은 GC(TCD, FID)를 이용하여 정성적, 정량적 분석을 하였다. 액체물질은 상등액과 tar가 풍부한 하등액으로 분리하여 발열량, 원소분석, 수분, GC/MS를 통해 화학구성성분을 분석하였다. 고체물질인 char는 원소분석을 하고 그 발열량을 측정하였다. 액체물질인 바이오오일은 화학특성 분석결과 대체 연료유뿐만 아니라 화학 원료물질로서의 사용가능성을 볼 수 있었다.

Keywords

References

  1. American Chemical Society, 1981: Biomass as non fossil fuel source, ACS Symposium series 144, ISB 0-84120599-x, American Chemical Society, pp564
  2. Peter M., 2002: Energy production from biomass (part1) overview of biomass, Bioresource Technology, 87, pp. 37-46
  3. Whittaker R. H. and Likens G. E., 1975: Primary productivity of the biosphere, H, Leith and R. H. Whittaker, (Eds.), Springer, Verlag, New York
  4. Hohenstein W. G. and Wfight L. L., 1994 : Biomass energy production in the United states an overview, Biomass and Bioenergy, 6(3) pp.161-173 https://doi.org/10.1016/0961-9534(94)90073-6
  5. Dti/ETSU, 2000: Establishing biomass heating in the UK. Phase 2
  6. Klass, D. L., 1993: Fossil fuel consumption and atmospheric $ CO_2$ , Energy Policy 21(11), pp.1076-1078 https://doi.org/10.1016/0301-4215(93)90257-G
  7. American Chemistry Society, American Institute of Chemical Engineers, Chemical Manufactures Association, Council for Chemical Research, and Synthetic Organic Chemical Manufactures Association, 1996: Technology vision 2000, American Chemical Society, Washington, D.C
  8. Bradbury A. G. W., Sakai, Y. and Shafizadeh, F., 1979: J. Appl. Polym. Sci. 23, pp. 3271 https://doi.org/10.1002/app.1979.070231112