Pyrolysis Characteristics of Waste Ship Lubricating Oil using Waste Catalyst in Isothermal Tubular Type Pyrolysis Reactor

등온 열분해 반응기에서 폐촉매를 이용한 선박용 폐윤활유의 열분해반응 특성 연구

  • Kim, Seung-Soo (Research Center, Korea Institute of Petroleum Quality)
  • 김승수 (한국석유품질관리원 연구센터)
  • Received : 2007.08.05
  • Accepted : 2007.08.17
  • Published : 2007.10.10

Abstract

The yield of oil was rapidly increased at $440^{\circ}C$ compared to $400^{\circ}C$ and $420^{\circ}C$ when the isothermal pyrolysis of waste ship lubricating oil was carried out in tubular type reactor, and pyrolysis was almost finished within 30 min. The yield of gas was decreased depending on the reaction temperature in which that of solid was not much changed. Pyrolysis experiments of waste ship lubricating oil were carried out with used ZSM-5 produced from a petrochemical process. The yield of gas was highly increased in the case of used ZSM-5 and fresh ZSM-5 compared to the case without catalyst. The produced oil and gas were almost constant for fresh ZSM-5 and used ZSM-5 at the same reaction temperature. In the reaction temperature $400{\sim}440^{\circ}C$, the selectivity of $C_5-C_{11}$ was two times higher with fresh ZSM-5 and used ZSM-5 than the case without catalyst.

Tubular 형의 반응기를 이용한 선박용 폐윤활유의 등온실험에서 열분해 온도가 $440^{\circ}C$에서는 $400^{\circ}C$$420^{\circ}C$일 때보다 오일의 전환율이 급격하게 증가하였고 분해반응은 30 min 이내에 대부분 완료되었다. 반응온도 증가에 따라서 기체의 수율은 감소하는 경향을 나타냈으며, 고체 수율은 거의 변화가 없는 것을 확인할 수 있다. 석유화학공정으로부터 배출되는 ZSM-5 폐촉매를 사용하여 선박용 폐윤활유의 열분해반응 특성 연구를 수행하였다. Used ZSM-5와 fresh ZSM-5 촉매를 사용했을 경우에촉매가 없는 조건에서보다 기체의 수율이 현저하게 높은 것을 확인할 수 있다. 동일한 온도에서 fresh ZSM-5 촉매와 used ZSM-5 촉매의 액체 및 기체 생성량에는 거의 변화가 없었다. 반응온도 $400{\sim}440^{\circ}C$에서 fresh ZSM-5와 used ZSM-5 촉매를 사용하여 반응실험을 한 경우 촉매를 사용하지 않았을 때보다 $C_5-C_{11}$에 해당하는 탄화수소화합물의 선택성이 2배 정도 증가하였다.

Keywords

References

  1. D.-H. Choi, A study on the practical effect for the acting of protection policy of marine environmental, Korea Maritime Institute, 5-56 (2001)
  2. Ministry of Maritime Affairs & Fisheries, Comprehensive countermeasures of ocean dumping of land waste (2006)
  3. S. Kim and S.-Y. Park, Pyrolysis reaction characteristics of spent fishing ropes and nets, J. Korean Solid Wastes Engineering, 18, 397 (2001)
  4. S. Kim, J.-G. Jun, and K.-S. Yoo, Pyrolysis Reaction Mechanism of PE, PP, NY of major components of spent fishing ropes and nets, J. Korean Solid Wastes Engineering, 18, 410 (2001)
  5. S.-S. Kim and Y.-J. Chung, Pyrolysis Characteristics of nylon-6 from fishing nets, J. Korean Ind. Eng. Chem., 14, 793 (2003)
  6. S.-S. Kim and J.-K. Jeon, Pyrolysis characteristics of waste ship lubricating oil, J. Korean Ind. Eng. Chem., 15, 564 (2004)
  7. S.-S. Kim, J.-K. Jeon, Y.-K. Park, and S. Kim, Thermal pyrolysis of fresh and waste fishing nets, Waste Management, 25, 811 (2005)
  8. J. Brandrup, M. Bittner, W. Michaeli, and G. Menges, Recycling and recovery of plastics, Hanser Publishers, 434 (1996)
  9. The Bulletin of Korea Lubricating Oil Industries Association, 106, 46 (2003)
  10. The Bulletin of Korea Lubricating Oil Industries Association, 110, 45 (2004)
  11. The Bulletin of Korea Lubricating Oil Industries Association, 114, 44 (2005)
  12. The Bulletin of Korea Lubricating Oil Industries Association, 118, 37 (2006)
  13. S.-S. Kim and S. H. Kim, Pyrolysis kinetics of waste automobile lubricating oil, Fuel, 79, 1943 (2000)
  14. S.-S. Kim, B. H. Chun, and S. H. Kim, Non-isothermal pyrolysis of waste automobile lubricating oil in a stirred batch reactor, Chem. Eng. J., 93, 225 (2003)
  15. M. F. Gomez-Rico, I. Martín-Gullón, A. Fullana, J.A. Conésa, and R. Font, Pyrolysis and combustion kinetics and emissions of waste lube oils, J. of Analytical and Applied Pyrolysis, 68, 527, (2003)
  16. J.-K. Jeon. H. Kim, M. J. Kim, T.-W. Kang, and Y.-K. Park, Effect of gallium addition to HZSM-5 on catalytic pyrolysis of an LDPE-LLDPE-EVA copolymer mixture, J. Korean Ind. Eng. Chem., 18, 58 (2007)
  17. C.-G. Lee, J.-S. Kim, P.-S. Song, Y.-J. Cho, Y. Kang, and M.-J. Choi, Effect of catalyst on the pyrolysis of polystyrene wastes in a fluidized bed catalytic reactor, HWAHAK KONGHAK, 40, 445 (2002)