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Assessment of Hybrid Solvent—Membrane Configurations for Post-Combustion CO 2 Capture for Super-Critical Power Plants

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  • Calin-Cristian Cormos

    (Chemical Engineering Department, Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 11 Arany Janos, RO-400028 Cluj-Napoca, Romania)

  • Letitia Petrescu

    (Chemical Engineering Department, Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 11 Arany Janos, RO-400028 Cluj-Napoca, Romania)

  • Ana-Maria Cormos

    (Chemical Engineering Department, Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 11 Arany Janos, RO-400028 Cluj-Napoca, Romania)

  • Cristian Dinca

    (Faculty of Power Engineering, Politehnica University, 313 Splaiul Independentei, RO-060042 Bucharest, Romania)

Abstract

The reduction of fossil CO 2 emissions from key relevant industrial processes represents an important environmental challenge to be considered. To enable large-scale deployment of low carbon technologies, a significant research and development effort is required to optimize the CO 2 capture systems. This work assesses various hybrid solvent-membrane configurations for post-combustion decarbonization of coal-based super-critical power plants. As an illustrative chemical solvent, Methyl-Di-Ethanol-Amine was assessed. Various membrane unit locations were assessed (e.g., top absorber, before absorber using either compressor or vacuum pump). All investigated designs have a 1000 MW net power output with a 90% decarbonization ratio. Benchmark concepts with and without carbon capture using either reactive gas-liquid absorption or membrane separation technology were also evaluated to have a comparative assessment. Relevant evaluation tools (e.g., modeling, simulation, validation, thermal integration, etc.) were employed to assess the plant performance indicators. The integrated evaluation shows that one hybrid solvent-membrane configuration (membrane unit located at the top of absorption column) performs better in terms of increasing the overall net plant efficiency than the membrane-only case (by about 1.8 net percentage points). In addition, the purity of captured CO 2 stream is higher for hybrid concepts than for membranes (99.9% vs. 96.3%). On the other hand, the chemical scrubbing concept has superior net energy efficiency than investigated hybrid configurations (by about 1.5–3.7 net percentage points).

Suggested Citation

  • Calin-Cristian Cormos & Letitia Petrescu & Ana-Maria Cormos & Cristian Dinca, 2021. "Assessment of Hybrid Solvent—Membrane Configurations for Post-Combustion CO 2 Capture for Super-Critical Power Plants," Energies, MDPI, vol. 14(16), pages 1-12, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:5017-:d:615105
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    References listed on IDEAS

    as
    1. Vega, F. & Baena-Moreno, F.M. & Gallego Fernández, Luz M. & Portillo, E. & Navarrete, B. & Zhang, Zhien, 2020. "Current status of CO2 chemical absorption research applied to CCS: Towards full deployment at industrial scale," Applied Energy, Elsevier, vol. 260(C).
    2. Rissman, Jeffrey & Bataille, Chris & Masanet, Eric & Aden, Nate & Morrow, William R. & Zhou, Nan & Elliott, Neal & Dell, Rebecca & Heeren, Niko & Huckestein, Brigitta & Cresko, Joe & Miller, Sabbie A., 2020. "Technologies and policies to decarbonize global industry: Review and assessment of mitigation drivers through 2070," Applied Energy, Elsevier, vol. 266(C).
    3. Pettinau, Alberto & Ferrara, Francesca & Tola, Vittorio & Cau, Giorgio, 2017. "Techno-economic comparison between different technologies for CO2-free power generation from coal," Applied Energy, Elsevier, vol. 193(C), pages 426-439.
    4. Cristea, Vasile-Mircea & Burca, Madalina Ioana & Ilea, Flavia Maria & Cormos, Ana-Maria, 2020. "Efficient decentralized control of the post combustion CO2 capture plant for flexible operation against influent flue gas disturbances," Energy, Elsevier, vol. 205(C).
    5. Cormos, Calin-Cristian & Dinca, Cristian, 2021. "Techno-economic and environmental implications of decarbonization process applied for Romanian fossil-based power generation sector," Energy, Elsevier, vol. 220(C).
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