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Simulation on Recovery of Methane Greenhouse Gas from Biogas Using 3 Stage Membrane Modules

바이오가스로부터 온실가스 메탄 회수를 위한 3단 분리막 공정 모사

  • Lee, Yongtaek (Dept. of Chem. Eng. and Applied Chemistry., Chungnam National University)
  • 이용택 (충남대학교 응용화학공학과)
  • Received : 2018.08.06
  • Accepted : 2018.08.23
  • Published : 2018.08.31

Abstract

Methane is one of the important greenhouse gases and methane is the major component of the biogas. A multiple stage membrane process was developed and analysed with the numerical analysis so that the mole fraction of methane in the final product could be kept higher than 0.95 and simultaneously the recovery of methane was also maintained higher than 99% from the biogas using 3 polysulfone hollow fiber membrane modules which were properly connected. As the feed pressure of the biogas, the mole fraction of methane in the biogas and the membrane area in the membrane module are increased, the methane mole fraction of the final product are found to be increased. However, a proper membrane area in the module should be carefully selected in order to achieve the satisfactory goal of 0.95 mole fraction of methane and 99% recovery of methane from the biogas. Even if the multiple membrane process is utilized with the properly selected membrane modules, the limited operating ranges have to be applied in the following parameters : the feed pressure, the flow rate, the mole fraction of methane in the biogas to get both the target methane concentration and the recovery rate of methane.

Acknowledgement

Supported by : 충남대학교

References

  1. http://www.nobel.or.kr/science-story/chemistry-sciencestory/326.htm, August 3 (2018).
  2. IPCC, 2014: Climate Change 2014: Synthesis Report, Contribution of Working Groups I, II, and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Core Writing Team, R.K. Pachauri and L.A. Meyer (eds.). Box 3.2, Table 1, Geneva, Switzland, p. 87 (2015).
  3. J. T. Kiehl and K. E. Trenberth, "Earth's annual global mean energy budget", Bull. Am. Meteorol Soc., 78, 197 (1997). https://doi.org/10.1175/1520-0477(1997)078<0197:EAGMEB>2.0.CO;2
  4. http://www.energyjustice.net/lfg, August 3 (2018).
  5. U.S. Environmental Protection Agency, "LFG Energy Project Development Handbook", pp. 3.1-3.17, Landfill Methane Outreach Program (2017).
  6. K. Berean, J. Z. Ou, M. Nour, K. Latham, C. Mcsweeney, D. Paull, A. Halim, S. Kentish, C. M. Doherty, A. J. Hill, and K. Kalantar-zadeh, "The effect of crosslining temperature on the permeability of PDMS membranes: Evidence of extraordinary $CO_2$ and $CH_4$ gas permeation", Sep. Purif. Technol., 122, 96 (2014). https://doi.org/10.1016/j.seppur.2013.11.006
  7. Y. Seo, S. Lee, S. Park, W. Jung, J. Kim, and Y. Lee, "Simulation on concentration of $CH_4$ using hollow fiber membrane permeator with countercurrent flow", Membr. J., 24, 223 (2014). https://doi.org/10.14579/MEMBRANE_JOURNAL.2014.24.3.223
  8. I. Song, H. Ahn, Y. Lee, H. Jeon, Y. Lee, J.-H. Kim, and S.-B. Lee, "Numerical analysis for separation of carbon dioxide by hollow fiber membrane with cocurrent flow", Membr. J., 16, 204 (2006).
  9. S.-H. Choi, J.-H. Kim, and Y. Lee, "Pilot-scale multistage membrane process for the separation of $CO_2$ from LNG-fired flue gas", Sep. Purif. Technol., 110, 170 (2013). https://doi.org/10.1016/j.seppur.2013.03.016
  10. R. W. Baker, J. G. Wijimans, and J. H. Kaschemekat, "The design of membrane vapor-gas separation system", J. Membr. Sci., 151, 55 (1998). https://doi.org/10.1016/S0376-7388(98)00248-8
  11. K. H. Kim, K. J. Baik, I. W. Kim, and H. K. Lee, "Optimization of membrane process for methane recovery from biogas", Sep. Sci. Technol., 47, 963 (2012). https://doi.org/10.1080/01496395.2011.644878
  12. A. K. Datta and P. K. Sen, "Optimization of membrane unit for removing carbon dioxide from natural gas", J. Membr. Sci., 283, 291 (2006). https://doi.org/10.1016/j.memsci.2006.06.043
  13. G. H. Cha, J. H. Kim, and Y. Lee, "Simulation of $CH_4/CO_2$ separation process using 2-stage hollow fiber membrane modules", Membr. J., 26, 365 (2016). https://doi.org/10.14579/MEMBRANE_JOURNAL.2016.26.5.365