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Direct air capture of CO2 via aqueous-phase absorption and crystalline-phase release using concentrated solar power

Author

Listed:
  • Flavien M. Brethomé

    (Oak Ridge National Laboratory)

  • Neil J. Williams

    (Oak Ridge National Laboratory)

  • Charles A. Seipp

    (Oak Ridge National Laboratory)

  • Michelle K. Kidder

    (Oak Ridge National Laboratory)

  • Radu Custelcean

    (Oak Ridge National Laboratory)

Abstract

Using negative emissions technologies for the net removal of greenhouse gases from the atmosphere could provide a pathway to limit global temperature rises. Direct air capture of carbon dioxide offers the prospect of permanently lowering the atmospheric CO2 concentration, providing that economical and energy-efficient technologies can be developed and deployed on a large scale. Here, we report an approach to direct air capture, at the laboratory scale, using mostly off-the-shelf materials and equipment. First, CO2 absorption is achieved with readily available and environmentally friendly aqueous amino acid solutions (glycine and sarcosine) using a household humidifier. The CO2-loaded solutions are then reacted with a simple guanidine compound, which crystallizes as a very insoluble carbonate salt and regenerates the amino acid sorbent. Finally, effective CO2 release and near-quantitative regeneration of the guanidine compound are achieved by relatively mild heating of the carbonate crystals using concentrated solar power.

Suggested Citation

  • Flavien M. Brethomé & Neil J. Williams & Charles A. Seipp & Michelle K. Kidder & Radu Custelcean, 2018. "Direct air capture of CO2 via aqueous-phase absorption and crystalline-phase release using concentrated solar power," Nature Energy, Nature, vol. 3(7), pages 553-559, July.
    • Handle: RePEc:nat:natene:v:3:y:2018:i:7:d:10.1038_s41560-018-0150-z
    DOI: 10.1038/s41560-018-0150-z
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    Citations

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    Cited by:

    1. Vadim Fetisov & Adam M. Gonopolsky & Maria Yu. Zemenkova & Schipachev Andrey & Hadi Davardoost & Amir H. Mohammadi & Masoud Riazi, 2023. "On the Integration of CO 2 Capture Technologies for an Oil Refinery," Energies, MDPI, vol. 16(2), pages 1-19, January.
    2. Zhang, Chen & Zhang, Xinqi & Su, Tingyu & Zhang, Yiheng & Wang, Liwei & Zhu, Xuancan, 2023. "Modification schemes of efficient sorbents for trace CO2 capture," Renewable and Sustainable Energy Reviews, Elsevier, vol. 184(C).
    3. Zhu, Xuancan & Ge, Tianshu & Yang, Fan & Wang, Ruzhu, 2021. "Design of steam-assisted temperature vacuum-swing adsorption processes for efficient CO2 capture from ambient air," Renewable and Sustainable Energy Reviews, Elsevier, vol. 137(C).
    4. Choe, Changgwon & Cheon, Seunghyun & Kim, Heehyang & Lim, Hankwon, 2023. "Mitigating climate change for negative CO2 emission via syngas methanation: Techno-economic and life-cycle assessments of renewable methane production," Renewable and Sustainable Energy Reviews, Elsevier, vol. 185(C).
    5. Steffen Fahr & Julian Powell & Alice Favero & Anthony J. Giarrusso & Ryan P. Lively & Matthew J. Realff, 2022. "Assessing the physical potential capacity of direct air capture with integrated supply of low‐carbon energy sources," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 12(1), pages 170-188, February.
    6. ElSayed, Mai & Aghahosseini, Arman & Caldera, Upeksha & Breyer, Christian, 2023. "Analysing the techno-economic impact of e-fuels and e-chemicals production for exports and carbon dioxide removal on the energy system of sunbelt countries – Case of Egypt," Applied Energy, Elsevier, vol. 343(C).
    7. Shijian Jin & Min Wu & Yan Jing & Roy G. Gordon & Michael J. Aziz, 2022. "Low energy carbon capture via electrochemically induced pH swing with electrochemical rebalancing," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    8. Jorge Federico Gabitto & Costas Tsouris, 2023. "Reaction Temperature Manipulation as a Process Intensification Approach for CO 2 Absorption," Energies, MDPI, vol. 16(18), pages 1-18, September.
    9. Kate Dooley & Ellycia Harrould‐Kolieb & Anita Talberg, 2021. "Carbon‐dioxide Removal and Biodiversity: A Threat Identification Framework," Global Policy, London School of Economics and Political Science, vol. 12(S1), pages 34-44, April.
    10. Drechsler, Carsten & Agar, David W., 2020. "Intensified integrated direct air capture - power-to-gas process based on H2O and CO2 from ambient air," Applied Energy, Elsevier, vol. 273(C).
    11. Abishek Kasturi & Jorge F. Gabitto & Radu Custelcean & Costas Tsouris, 2021. "A Process Intensification Approach for CO 2 Absorption Using Amino Acid Solutions and a Guanidine Compound," Energies, MDPI, vol. 14(18), pages 1-15, September.

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