A Study on the Computer Simulation for the Complete Combustion Reaction of PCBs in Supercritical Water

초임계수 내에서 PCBs 완전산화반응의 전산모사에 관한 연구

  • Cho, Jungho (Department of Chemical Engineering, Dong Yang University) ;
  • Kim, Kyeongsook (Nuclear Power Laboratory, Korea Electric Power Research Institute(KEPRI)) ;
  • Son, Soon Hwan (Nuclear Power Laboratory, Korea Electric Power Research Institute(KEPRI)) ;
  • Kim, Yeong-Cheol (Supercritical Fluid Engineering Laboratory, Korea Research Institue of Chemical Technology)
  • 조정호 (동양대학교 생명화학공학과) ;
  • 김경숙 (한국전력공사 전력연구원 원자력발전연구소) ;
  • 손순환 (한국전력공사 전력연구원 원자력발전연구소) ;
  • 김영철 (한국화학연구원 초임계유체 연구팀)
  • Received : 2006.11.19
  • Accepted : 2006.12.14
  • Published : 2007.02.28

Abstract

In this study, computer simulations have been performed for the removal of the transformer oil contaminated with polychlorinated biphenyls (PCBs) in supercritical water through complete combustion reaction. We regarded n-decane as a main material of transformer oil, and it is assumed to be 3.0 wt% of transformer oil in supercritical water. We used Peng-Robinson equation of state to estimate the physical properties of components in supercritical water. Throughout the computer simulation done in this work, we could explain the solubilities of 3.0 wt% of transformer oil and excess oxygen in supercritical water.

본 연구에서는 전력 산업에서 발생하는 폐기물 중의 하나인 Poly Chlorinated Biphenyls(PCBs)를 함유한 절연유를 초임계수 내에서 완전산화반응을 통해서 제거하는 전산모사를 수행하였다. 절연유의 주성분을 노말 데칸으로 선정하였으며, 초임계수 내의 절연유의 함량은 3.0 wt%로 가정하였다. 초임계수 내에서의 물성 추산을 위해서 Peng-Robinson 상태방정식을 사용하였으며, 전산모사를 통해서 초임계수 내에서 3.0 wt%의 절연유 및 과잉 산소가 모두 용해되는 현상을 잘 설명할 수 있었다.

Keywords

Acknowledgement

Supported by : 산업자원부

References

  1. Song, I. K., 'PCB Degradation Reaction Technology by Catalyst,' NICE, 23(6), 666-668(2005)
  2. Kim, J. K., 'PCBs Degradation Reaction Technology by Supercritical Water Oxidation Reaction,' NICE, 23(6), 661-665(2005)
  3. Kim, Y. C., Yook, S. H., Park, G. H., Kim, K. S. and Son, S. H., 'Supercritical Water Oxidation of Transformer Oil Contaminated with Polychlorinated Biphenyls (I),' J. Kor. Soc, Waste Manag., 23(6), 139-145(2006)
  4. Aspen Plus User Guide, Vol. 1 & 2, 151-170(2004)
  5. PRO/II with PROVISION Input Manual, 81-88(2003)
  6. Peng, D. Y. and Robinson, D. B., 'A New Two-constants Equation of State for Fluid and Fluid Mixtures,' Ind. Eng. Chem. Fundam. 15(1), 59-64(1976) https://doi.org/10.1021/i160057a011
  7. McHugh, M. A., Supercritical Fluid Extraction, Butterworth, 23-67 (1986)
  8. Fredenslund, Aa., Jones, R. L. and Prausnitz, J. M., 'Group Contribution Estimation of Activity Coefficient in Nonideal Liquid Mixtures,' AIChE J., 21(6), 1086-1099(1975) https://doi.org/10.1002/aic.690210607
  9. Twu, C. H., Bluck, D., Cunningham, J. R. and Coon, J. E., 'A Cubic Equation of State with a New Alpha Function and New Mixing Rule,' Fluid Phase Equil., 69(10), 33-50(1991) https://doi.org/10.1016/0378-3812(91)90024-2