Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Extraction of Athabasca Oil Sand with Sub- and Supercritical Water

아임계 및 초임계수를 이용한 Athabasca 오일샌드의 추출

  • Park, Jung Hoon (Korea Institute of Energy Research, Green House Gas Research Center) ;
  • Son, Sou Hwan (Korea Institute of Energy Research, Green House Gas Research Center) ;
  • Baek, Il Hyun (Korea Institute of Energy Research, Green House Gas Research Center) ;
  • Nam, Sung Chan (Korea Institute of Energy Research, Green House Gas Research Center)
  • 박정훈 (한국에너지기술연구원 온실가스연구단) ;
  • 손수환 (한국에너지기술연구원 온실가스연구단) ;
  • 백일현 (한국에너지기술연구원 온실가스연구단) ;
  • 남성찬 (한국에너지기술연구원 온실가스연구단)
  • Received : 2009.02.16
  • Accepted : 2009.03.24
  • Published : 2009.06.30
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Abstract

Bitumen extraction and sulfur removal from Athabasca oil sand were conducted using water in sub- and supercritical condition. Bitumen yield in micro reactor was investigated in the pressure range of 15~30 MPa, the temperature of 360 and $380^{\circ}C$ and water density $0.074{\sim}0.61g/cm^3$ for 0~120 min. Bitumen yield increased with reaction pressure irrespective of temperature and dramatically increased in especially supercritical region due to hydrogen formed from water gas shift reaction. Total amount of gas product decreased with reaction pressure but the portion of sulfur and hydrogen increased a little with increasing pressure to 25 and 30 MPa. It is seen that supercritical condition was favourable to the hydrogen formation and sulfur removal. Bitumen yield and sulfur removal from original oil sand reached a maximum 22% and 40% respectively in supercritical condition(the reaction time of 60 min at $380^{\circ}C$ and 25 or 30 MPa).

아임계 및 초임계 조건의 물을 이용하여 캐나다산 Athabasca 오일샌드로부터 역청 추출 및 황 제거 실험을 수행하였다. 0~120 min의 반응시간, 360, $380^{\circ}C$의 온도, 15~30 MPa의 압력 및 $0.074{\sim}0.61g/cm^3$의 물 밀도를 변화시키면서 micro reactor에서 역청 수율을 조사하였다. 역청 수율은 온도에 상관없이 압력이 증가할수록 증가하였으며, 특히 초임계 영역에서 수증기 개질반응에 의해 생성된 수소에 의해 역청의 수율이 급격히 증가하였다. 전체 기상 생성량은 압력 증가에 따라 감소하였으나 $380^{\circ}C$에서 황과 수소의 생성분율은 25 및 30 MPa로 압력 증가에 따라 소량 증가하였다. 이상의 결과는 초임계 조건이 수소의 생성과 황의 제거에 유리하다는 것을 보여준다. 초임계 조건$380^{\circ}C$, 25와 30 MPa)에서 역청 수율은 최대 약 22%였으며, 오일샌드에 함유된 황 제거율도 최대값 40%에 도달하였다.

Keywords

Acknowledgement

Grant : 비재래형 석유계 연료의 고품위화 기술개발

Supported by : 에너지기술연구원

References

  1. Canada, National, Energy and Board. Canada oil sands: opportunities and challenges to 2015, Publications Office, National Energy Board, Calgary(2004)
  2. Demainson, G. J., Tar sands and supergiant oil fields., CIM Special( 1978)
  3. Berkowitz, N. and Calderon, J., "Extraction of Oil Sand Bitumens with Supercritical Water," Fuel Processing Technology, 25(1), 33- 44(1990) https://doi.org/10.1016/0378-3820(90)90093-8
  4. Ogunsola, O. M. and Berkowitz, N., "Extraction of Oil Shales with sub- and Near-critical Water," Fuel Processing Technology, 45(2), 95-107(1995) https://doi.org/10.1016/0378-3820(95)00036-7
  5. Subramanian, M. and Hanson, F. V., "Supercritical Fluid Extraction of Bitumens from Utah Oil Sands," Fuel Processing Technology, 55(1), 35-53(1998) https://doi.org/10.1016/S0378-3820(97)00076-3
  6. Czarnecki, J., Radoev, B., Schramm, L. L. and Slavchev, R., "On the Nature of Athabasca Oil Sands," Advances in Colloid and Interface Science, 114-115, 53-60(2005) https://doi.org/10.1016/j.cis.2004.09.009
  7. Park, Y.-K., Choi, W. C., Jeong, S. Y. and Lee, C. W., 'High Value- Added Technology of Oil Sand,' Korean J. Chem. Eng., 45(2), 109-116(2007)
  8. Park, J. H., Joung, Y. O. and Park, S. D., "Sulfur Removal from Coal with Supercritical Fluid Treatment," Korean J. Chem. Eng., 24(2), 314-318(2007) https://doi.org/10.1007/s11814-007-5043-y
  9. Park, J. H. and Park, S. D., "Extraction of Low Rank Coal with Sub- and Supercritical Water," Journal of Chemical Engineering of Japan, 41(7), 590-596(2008) https://doi.org/10.1252/jcej.07WE070