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CO 2 Capture Using Deep Eutectic Solvents Integrated with Microalgal Fixation

Author

Listed:
  • Eliza Gabriela Brettfeld

    (Bioresources Department, National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, Splaiul Independentei nr. 202, Sector 6, 060021 Bucharest, Romania
    Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, Splaiul Independenței nr. 313, 060042 Bucharest, Romania)

  • Daria Gabriela Popa

    (Bioresources Department, National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, Splaiul Independentei nr. 202, Sector 6, 060021 Bucharest, Romania
    Faculty of Biotechnologies, University of Agronomic Sciences and Veterinary Medicine of Bucharest, Bd. Mărăști nr. 59, 011464 Bucharest, Romania)

  • Tănase Dobre

    (Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, Splaiul Independenței nr. 313, 060042 Bucharest, Romania)

  • Corina Ioana Moga

    (Research and Development Department, DFR Systems, Drumul Taberei 46, 061392 Bucharest, Romania)

  • Diana Constantinescu-Aruxandei

    (Bioresources Department, National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, Splaiul Independentei nr. 202, Sector 6, 060021 Bucharest, Romania)

  • Florin Oancea

    (Bioresources Department, National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, Splaiul Independentei nr. 202, Sector 6, 060021 Bucharest, Romania
    Faculty of Biotechnologies, University of Agronomic Sciences and Veterinary Medicine of Bucharest, Bd. Mărăști nr. 59, 011464 Bucharest, Romania)

Abstract

In this study, we investigated the use of functionalized deep eutectic solvents (DESs) as a medium for CO 2 capture integrated with CO 2 desorption and biofixation in microalgal culture, as an approach for carbon capture, utilization, and storage (CCUS). The newly devised DES formulation—comprising choline chloride, ethylene glycol, and monoethanolamine—demonstrated a significant advancement in CO 2 absorption capacity compared with conventional solvents. Effective CO 2 desorption from the solvent was also achieved, recovering nearly 90% of the captured CO 2 . We then examined the application of the functionalized DESs to promote microalgal cultivation using a Chlorella sp. strain. The experimental results indicated that microalgae exposed to DES-desorbed CO 2 exhibited heightened growth rates and enhanced biomass production, signifying the potential of DES-driven CO 2 capture for sustainable microalgal biomass cultivation. This research contributes to the growing field of CCUS strategies, offering an avenue for efficient CO 2 capture and conversion into valuable biomasses, thereby contributing to both environmental sustainability and bioresource use.

Suggested Citation

  • Eliza Gabriela Brettfeld & Daria Gabriela Popa & Tănase Dobre & Corina Ioana Moga & Diana Constantinescu-Aruxandei & Florin Oancea, 2023. "CO 2 Capture Using Deep Eutectic Solvents Integrated with Microalgal Fixation," Clean Technol., MDPI, vol. 6(1), pages 1-17, December.
    • Handle: RePEc:gam:jcltec:v:6:y:2023:i:1:p:3-48:d:1310664
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    References listed on IDEAS

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    1. Cameron Hepburn & Ella Adlen & John Beddington & Emily A. Carter & Sabine Fuss & Niall Mac Dowell & Jan C. Minx & Pete Smith & Charlotte K. Williams, 2019. "The technological and economic prospects for CO2 utilization and removal," Nature, Nature, vol. 575(7781), pages 87-97, November.
    2. Tobiesen, Finn Andrew & Haugen, Geir & Hartono, Ardi, 2018. "A systematic procedure for process energy evaluation for post combustion CO2 capture: Case study of two novel strong bicarbonate-forming solvents," Applied Energy, Elsevier, vol. 211(C), pages 161-173.
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