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Water vapor effects on CO2 separation of amine‐containing facilitated transport membranes (AFTMs) module: mathematical modeling using tanks‐in‐series approach

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  • Qiang Yang
  • Qianguo Lin
  • Sergio Sammarchi
  • Jia Li
  • Sa Li
  • Dong Wang

Abstract

Amine‐containing facilitated transport membranes (AFTMs) are emerging membranes and have great potential for CO2 capture. AFTMs are particularly suitable for humid flue gases, as water vapor enhances the facilitated transportation of CO2. However, there is a lack of mathematical models available to evaluate the impact of water vapor on CO2 separation performance for large‐scale membrane modules. Therefore, developing a mathematical model considering the water vapor effects is of great importance to guide the large‐scale applications of AFTMs for CO2 capture. In this study, a mathematical model using tanks‐in‐series approach for CO2 capture through AFTMs is proposed. In this model, the tanks‐in‐series approach can reflect the variable (water vapor‐dependent) gas permeance along the membrane module. Modeling results showed the necessity of considering the effect of water vapor content decline along the module. In addition, both increasing temperature and pressure primarily lead to a faster decline of relative humidity (RH) along the membrane module, resulting in an increase of CO2 recovery but a decrease of CO2 product purity. For a gas stream with relatively low water vapor content (

Suggested Citation

  • Qiang Yang & Qianguo Lin & Sergio Sammarchi & Jia Li & Sa Li & Dong Wang, 2021. "Water vapor effects on CO2 separation of amine‐containing facilitated transport membranes (AFTMs) module: mathematical modeling using tanks‐in‐series approach," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 11(1), pages 52-68, February.
    • Handle: RePEc:wly:greenh:v:11:y:2021:i:1:p:52-68
    DOI: 10.1002/ghg.2031
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    References listed on IDEAS

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    1. Abtin Ebadi Amooghin & Mohammad Mehdi Moftakhari Sharifzadeh & Mona Zamani Pedram, 2018. "Rigorous modeling of gas permeation behavior in facilitated transport membranes (FTMs); evaluation of carrier saturation effects and double‐reaction mechanism," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 8(3), pages 429-443, June.
    2. Colin A. Scholes & Abdul Qader & Geoff W. Stevens & Sandra E. Kentish, 2015. "Membrane pilot plant trials of CO2 separation from flue gas," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 5(3), pages 229-237, June.
    3. Hamidreza Sanaeepur & Bahram Nasernejad & Ali Kargari, 2015. "Cellulose acetate/nano‐porous zeolite mixed matrix membrane for CO2 separation," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 5(3), pages 291-304, June.
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