Simultaneous Sodium Hydroxide Production by Membrane Electrolysis and Carbon Dioxide Capture

Haesung Yun; Young Eun Kim; Wonhee Lee; Min Hye Youn; Soon Kwan Jeong; Ki Tae Park; Ki Bong Lee

doi:10.1002/ceat.201700151

Simultaneous Sodium Hydroxide Production by Membrane Electrolysis and Carbon Dioxide Capture

Haesung Yun, Young Eun Kim, Wonhee Lee, Min Hye Youn, Soon Kwan Jeong, Ki Tae Park, Ki Bong Lee

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The simultaneous process of NaOH production via electrolysis of NaCl and CO₂ capture was investigated due to the expectation of reduction in capital cost. It was found that seawater concentration of NaCl solution was adaptable to be used as both anolyte and catholyte and that 90 °C was the most proper temperature for NaOH production among the test conditions in this work. Under these electrolyte and temperature conditions, the simultaneous NaOH production and CO₂ capture processes were conducted and more than 98.83 % of OH⁻ was reacted with CO₂ to yield aqueous carbonate solutions. Additional electrochemical CO₂ capture tests were carried out depending on the different CO₂ concentration of mixed gases.

Original language	English
Pages (from-to)	2204-2211
Number of pages	8
Journal	Chemical Engineering and Technology
Volume	40
Issue number	12
DOIs	https://doi.org/10.1002/ceat.201700151
Publication status	Published - 2017 Dec

Bibliographical note

Funding Information:
This work was conducted in the framework of the Research and Development Program of the Korea Institute of Energy Research (B7-2431).

Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

Carbon dioxide capture
Membrane electrolysis
Sodium hydroxide production

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Industrial and Manufacturing Engineering

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10.1002/ceat.201700151

Cite this

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abstract = "The simultaneous process of NaOH production via electrolysis of NaCl and CO2 capture was investigated due to the expectation of reduction in capital cost. It was found that seawater concentration of NaCl solution was adaptable to be used as both anolyte and catholyte and that 90 °C was the most proper temperature for NaOH production among the test conditions in this work. Under these electrolyte and temperature conditions, the simultaneous NaOH production and CO2 capture processes were conducted and more than 98.83 % of OH− was reacted with CO2 to yield aqueous carbonate solutions. Additional electrochemical CO2 capture tests were carried out depending on the different CO2 concentration of mixed gases.",

keywords = "Carbon dioxide capture, Membrane electrolysis, Sodium hydroxide production",

author = "Haesung Yun and Kim, {Young Eun} and Wonhee Lee and Youn, {Min Hye} and Jeong, {Soon Kwan} and Park, {Ki Tae} and Lee, {Ki Bong}",

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AU - Yun, Haesung

AU - Kim, Young Eun

AU - Lee, Wonhee

AU - Youn, Min Hye

AU - Jeong, Soon Kwan

AU - Park, Ki Tae

AU - Lee, Ki Bong

N1 - Funding Information: This work was conducted in the framework of the Research and Development Program of the Korea Institute of Energy Research (B7-2431). Publisher Copyright: © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2017/12

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N2 - The simultaneous process of NaOH production via electrolysis of NaCl and CO2 capture was investigated due to the expectation of reduction in capital cost. It was found that seawater concentration of NaCl solution was adaptable to be used as both anolyte and catholyte and that 90 °C was the most proper temperature for NaOH production among the test conditions in this work. Under these electrolyte and temperature conditions, the simultaneous NaOH production and CO2 capture processes were conducted and more than 98.83 % of OH− was reacted with CO2 to yield aqueous carbonate solutions. Additional electrochemical CO2 capture tests were carried out depending on the different CO2 concentration of mixed gases.

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KW - Carbon dioxide capture

KW - Membrane electrolysis

KW - Sodium hydroxide production

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Simultaneous Sodium Hydroxide Production by Membrane Electrolysis and Carbon Dioxide Capture

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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