Cited by 257Membrane-based Ion Separation TechniquesCO2 Reduction Techniques and CatalystsCarbon Dioxide Capture Technologies

CO2 extraction from seawater using bipolar membrane electrodialysis

Eisaman, Matthew D., Parajuly, Keshav, Tuganov, Alexander, Eldershaw, Craig, Chang, Norine, Littau, Karl A.·2012·Energy & Environmental Science

Abstract

An efficient method for extracting the dissolved CO2 in the oceans would effectively enable the separation of CO2 from the atmosphere without the need to process large volumes of air, and could provide a key step in the synthesis of renewable, carbon-neutral liquid fuels. While the extraction of CO2 from seawater has been previously demonstrated, many challenges remain, including slow extraction rates and poor CO2 selectivity, among others. Here we describe a novel solution to these challenges – efficient CO2 extraction from seawater using bipolar membrane electrodialysis (BPMED). We characterize the performance of a custom designed and built CO2-from-seawater prototype, demonstrating the ability to extract 59% of the total dissolved inorganic carbon from seawater as CO2 gas with an electrochemical energy consumption of 242 kJ mol−1(CO2).

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Crossref · 10.1039/c2ee03393c

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  • A total of 59% of dissolved inorganic CO2 in seawater has been extracted using bipolar membrane electrodialysis with an energy input of about 1527 kWh per tCO2.

    “A total of 59% of dissolved inorganic CO 2 in seawater has been extracted using bipolar membrane electrodialysis with an energy input of B1527 kW h per tCO 2 .14”

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Authors
Eisaman, M. D., Parajuly, K., Tuganov, A., Eldershaw, C., Chang, N., & Littau, K. A.
Affiliations
Palo Alto Research Center (US)
Corresponding author
Eisaman, Matthew D.
Venue
Energy & Environmental Science
Published
2012
Volume
5
Issue
6
Pages
7346
ISSN
  • 1754-5692 (ISSN-L)
  • 1754-5706
OpenAlex
W2111768800
Cited by
257
References
15
Citations by year
2026: 45 · 2025: 37 · 2024: 35 · 2023: 30 · 2022: 27 · 2021: 15 · 2020: 12 · 2019: 11 · 2018: 11 · 2017: 17 · 2016: 5 · 2015: 3 · 2014: 6 · 2013: 3
FWCI
2.19
Type
journal article
Language
en
Open access
closed
Locations
Energy & Environmental Science (publishedVersion)
Funders
Defense Advanced Research Projects Agency
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Membrane-based Ion Separation Techniques
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
  • Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
Keywords
CO2 extraction, seawater, bipolar membrane electrodialysis, dissolved inorganic carbon, CO2 selectivity, CO2 capture

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