CO2 capture from power plants: Part I. A parametric study of the technical performance based on monoethanolamine

Mohammad R.M. Abu-Zahra, Léon H.J. Schneiders, John Niederer, Paul H.M. Feron, Geert Versteeg

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Capture and storage of CO2 from fossil fuel fired power plants is drawing increasing interest as a potential method for the control of greenhouse gas emissions. An optimization and technical parameter study for a CO2 capture process from flue gas of a 600 MWe bituminous coal fired power plant, based on absorption/desorption process with MEA solutions, using ASPEN Plus with the RADFRAC subroutine, was performed. This optimization aimed to reduce the energy requirement for solvent regeneration, by investigating the effects of CO2 removal percentage, MEA concentration, lean solvent loading, stripper operating pressure and lean solvent temperature. Major energy savings can be realized by optimizing the lean solvent loading, the amine solvent concentration as well as the stripper operating pressure. A minimum thermal energy requirement was found at a lean MEA loading of 0.3, using a 40 wt.% MEA solution and a stripper operating pressure of 210 kPa, resulting in a thermal energy requirement of 3.0 GJ/ton CO2, which is 23% lower than the base case of 3.9 GJ/ton CO2. Although the solvent process conditions might not be realisable for MEA due to constraints imposed by corrosion and solvent degradation, the results show that a parametric study will point towards possibilities for process optimisation.
Original languageEnglish
Pages (from-to)37-46
JournalInternational journal of greenhouse gas control
Issue number1
Publication statusPublished - 2007


  • MEA
  • IR-78867
  • CO2 capture
  • ASPEN Plus
  • Absorption
  • Process optimization


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