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Study of intercooling for rotating packed bed absorbers in intensified solvent-based CO2 capture process

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  • Oko, Eni
  • Ramshaw, Colin
  • Wang, Meihong

Abstract

Rotating packed beds (RPBs) are a compact and potentially more cost-effective alternative to packed beds for application in solvent-based carbon capture process. However, with concentrated monoethanolamine (MEA) (up to 70–80 wt%) as the solvent, there is a question as to whether intercooler is needed for the RPB absorbers and how to design and operate them. This study indicates that the liquid phase temperature could rise significantly and this makes it essential for RPB absorber to have intercoolers. This is further assessed using a validated RPB absorber model implemented in gPROMS ModelBuilder® by evaluating the impact of temperature on absorption performance. Different design options for RPB absorber intercoolers (stationary vs rotary) were introduced and their potential sizes and associated pressure drop were evaluated based on a large scale flue gas benchmark of a 250 MWe Natural Gas Combined Cycle Power Plant. This paper addresses a fundamental question about intercooling in RPB absorber and introduces strategies for the intercooler design.

Suggested Citation

  • Oko, Eni & Ramshaw, Colin & Wang, Meihong, 2018. "Study of intercooling for rotating packed bed absorbers in intensified solvent-based CO2 capture process," Applied Energy, Elsevier, vol. 223(C), pages 302-316.
    • Handle: RePEc:eee:appene:v:223:y:2018:i:c:p:302-316
    DOI: 10.1016/j.apenergy.2018.04.057
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    References listed on IDEAS

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    1. Oh, Se-Young & Yun, Seokwon & Kim, Jin-Kuk, 2018. "Process integration and design for maximizing energy efficiency of a coal-fired power plant integrated with amine-based CO2 capture process," Applied Energy, Elsevier, vol. 216(C), pages 311-322.
    2. Diego, Maria Elena & Bellas, Jean-Michel & Pourkashanian, Mohamed, 2018. "Techno-economic analysis of a hybrid CO2 capture system for natural gas combined cycles with selective exhaust gas recirculation," Applied Energy, Elsevier, vol. 215(C), pages 778-791.
    3. Ashleigh Cousins & Aaron Cottrell & Anthony Lawson & Sanger Huang & Paul H.M. Feron, 2012. "Model verification and evaluation of the rich‐split process modification at an Australian‐based post combustion CO 2 capture pilot plant," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 2(5), pages 329-345, October.
    4. Agrawal, Nikhil & Ahiduzzaman, Md & Kumar, Amit, 2018. "The development of an integrated model for the assessment of water and GHG footprints for the power generation sector," Applied Energy, Elsevier, vol. 216(C), pages 558-575.
    5. Joel, Atuman S. & Wang, Meihong & Ramshaw, Colin & Oko, Eni, 2017. "Modelling, simulation and analysis of intensified regenerator for solvent based carbon capture using rotating packed bed technology," Applied Energy, Elsevier, vol. 203(C), pages 11-25.
    6. Wang, Meihong & Joel, Atuman S. & Ramshaw, Colin & Eimer, Dag & Musa, Nuhu M., 2015. "Process intensification for post-combustion CO2 capture with chemical absorption: A critical review," Applied Energy, Elsevier, vol. 158(C), pages 275-291.
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    Cited by:

    1. Otitoju, Olajide & Oko, Eni & Wang, Meihong, 2023. "Modelling, scale-up and techno-economic assessment of rotating packed bed absorber for CO2 capture from a 250 MWe combined cycle gas turbine power plant," Applied Energy, Elsevier, vol. 335(C).
    2. Zhang, Zhien & Borhani, Tohid N. & Olabi, Abdul G., 2020. "Status and perspective of CO2 absorption process," Energy, Elsevier, vol. 205(C).

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