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Estimation of the Amount of Electric Power Saved in the Carbon Dioxide Liquefaction Process using LNG Cold Heat

LNG 냉열을 활용한 이산화탄소 액화공정에서 절감되는 전력량의 산출

  • LEE, JIHWAN (Department of Human & Environment, Kyung-In Women's University) ;
  • CHO, JUNGHO (Department of Chemical Engineering, Kongju National University)
  • 이지환 (경인여자대학교 보건환경과) ;
  • 조정호 (공주대학교 공과대학 화학공학부)
  • Received : 2020.04.06
  • Accepted : 2020.04.30
  • Published : 2020.04.30

Abstract

In this study, comparison study has been performed between two-stage compression and a vapor-recompression refrigeration cycle and a liquefaction using LNG cold heat. When using a first method using two-stage compression and a refrigeration cycle, at least three compressors are required, however when using LNG cold heat, no compressor is required since carbon dioxide can be pumped after condensing with the heat exchange with -160℃ of LNG. Through this study, we can save more than one hundred million KRW annually by using LNG cold heat instead of using gas compression and refrigeration cycle.

Keywords

References

  1. L. M. Bernardo and J. Pous, "Green house gases", ExLi4EvA, 2016, pp. 1-3, doi: http://dx.doi.org/10.5772/62227.
  2. C. R. Goldman, M. Kumagai, and R. D. Robarts, "Climate change and global warming of inland waters", John Wiley & Sons, Ltd, USA, 2013, pp. 1-26.
  3. F. T. Princiotta, "Global climate change-the technology change", Springer, Netherlands, 2011, pp. 1-50.
  4. W. Y. Chen, J. Seiner, T. Suzuki, and M. Lackner, "Handbook of climate change mitigation", Springer, USA, 2012, pp. 3-36, doi: https://doi.org/10.1007/978-1-4419-7991-9.
  5. A. Tarule, "Climate variability- regional and thematic patters", InTech, UK, 2013, pp. 204-209. doi: https://doi.org/10.5772/46220.
  6. A. Kohl and R. Nielsen, "Gas purification", 5th ed, Guld Publishing Company, 1996, pp. 42-47
  7. Marice Stewart and K. E. Arnold, "Gas sweetening and processing field manual", Guld Publishing Company, USA, 2011, pp. 14-17
  8. D. M. Kim and J. H. Cho, "A comparative study of carbon dioxide capture capabilities between methanol solvent and aqueous monoethanol amine solution", Korean J. Chem. Eng., Vol. 28, No. 1, 2011, pp. 22-26. doi: https://doi.org/10.1007/s11814-010-0419-9.
  9. D. J. Morgan and J. M. Kramer, "Engineering data book", Gas Processors Suppliers Association, 2004, Section 14, pp. 1-28. Retrieved from https://www.academia.edu/11912717/GPSA_Engineering_Data_Book_Gas_Processing_12th_ed_2004.