LAPSE:2023.19450
Published Article
LAPSE:2023.19450
A Combined Chemical-Electrochemical Process to Capture CO2 and Produce Hydrogen and Electricity
Nabila Shamim, Shuza Binzaid, Jorge Federico Gabitto, John Okyere Attia
March 9, 2023
Several carbon sequestration technologies have been proposed to utilize carbon dioxide (CO2) to produce energy and chemical compounds. However, feasible technologies have not been adopted due to the low efficiency conversion rate and high-energy requirements. Process intensification increases the process productivity and efficiency by combining chemical reactions and separation operations. In this work, we present a model of a chemical-electrochemical cyclical process that can capture carbon dioxide as a bicarbonate salt. The proposed process also produces hydrogen and electrical energy. Carbon capture is enhanced by the reaction at the cathode that displaces the equilibrium into bicarbonate production. Literature data show that the cyclic process can produce stable operation for long times by preserving ionic balance using a suitable ionic membrane that regulates ionic flows between the two half-cells. Numerical simulations have validated the proof of concept. The proposed process could serve as a novel CO2 sequestration technology while producing electrical energy and hydrogen.
Keywords
CO2 absorption, electrochemical cell, Hydrogen, Process Intensification
Suggested Citation
Shamim N, Binzaid S, Gabitto JF, Attia JO. A Combined Chemical-Electrochemical Process to Capture CO2 and Produce Hydrogen and Electricity. (2023). LAPSE:2023.19450
Author Affiliations
Shamim N: Department of Chemical Engineering, Prairie View A&M University, Prairie View, TX 77446, USA
Binzaid S: Department of Electrical & Computer Engineering, Prairie View A&M University, Prairie View, TX 77446, USA
Gabitto JF: Department of Chemical Engineering, Prairie View A&M University, Prairie View, TX 77446, USA [ORCID]
Attia JO: Department of Electrical & Computer Engineering, Prairie View A&M University, Prairie View, TX 77446, USA
Journal Name
Energies
Volume
14
Issue
18
First Page
5807
Year
2021
Publication Date
2021-09-14
Published Version
ISSN
1996-1073
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Original Submission
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PII: en14185807, Publication Type: Journal Article
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LAPSE:2023.19450
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doi:10.3390/en14185807
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