A Combined Chemical-Electrochemical Process to Capture CO<sub>2</sub> and Produce Hydrogen and Electricity
Several carbon sequestration technologies have been proposed to utilize carbon dioxide (CO<sub>2</sub>) 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 intensifi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/18/5807 |
| _version_ | 1797519479001841664 |
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| author | Nabila Shamim Shuza Binzaid Jorge Federico Gabitto John Okyere Attia |
| author_facet | Nabila Shamim Shuza Binzaid Jorge Federico Gabitto John Okyere Attia |
| author_sort | Nabila Shamim |
| collection | DOAJ |
| description | Several carbon sequestration technologies have been proposed to utilize carbon dioxide (CO<sub>2</sub>) 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 CO<sub>2</sub> sequestration technology while producing electrical energy and hydrogen. |
| first_indexed | 2024-03-10T07:42:26Z |
| format | Article |
| id | doaj.art-4919a617e9574e1998e648bbedd50d04 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T07:42:26Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-4919a617e9574e1998e648bbedd50d042023-11-22T12:53:21ZengMDPI AGEnergies1996-10732021-09-011418580710.3390/en14185807A Combined Chemical-Electrochemical Process to Capture CO<sub>2</sub> and Produce Hydrogen and ElectricityNabila Shamim0Shuza Binzaid1Jorge Federico Gabitto2John Okyere Attia3Department of Chemical Engineering, Prairie View A&M University, Prairie View, TX 77446, USADepartment of Electrical & Computer Engineering, Prairie View A&M University, Prairie View, TX 77446, USADepartment of Chemical Engineering, Prairie View A&M University, Prairie View, TX 77446, USADepartment of Electrical & Computer Engineering, Prairie View A&M University, Prairie View, TX 77446, USASeveral carbon sequestration technologies have been proposed to utilize carbon dioxide (CO<sub>2</sub>) 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 CO<sub>2</sub> sequestration technology while producing electrical energy and hydrogen.https://www.mdpi.com/1996-1073/14/18/5807CO<sub>2</sub> absorptionprocess intensificationhydrogenelectrochemical cell |
| spellingShingle | Nabila Shamim Shuza Binzaid Jorge Federico Gabitto John Okyere Attia A Combined Chemical-Electrochemical Process to Capture CO<sub>2</sub> and Produce Hydrogen and Electricity Energies CO<sub>2</sub> absorption process intensification hydrogen electrochemical cell |
| title | A Combined Chemical-Electrochemical Process to Capture CO<sub>2</sub> and Produce Hydrogen and Electricity |
| title_full | A Combined Chemical-Electrochemical Process to Capture CO<sub>2</sub> and Produce Hydrogen and Electricity |
| title_fullStr | A Combined Chemical-Electrochemical Process to Capture CO<sub>2</sub> and Produce Hydrogen and Electricity |
| title_full_unstemmed | A Combined Chemical-Electrochemical Process to Capture CO<sub>2</sub> and Produce Hydrogen and Electricity |
| title_short | A Combined Chemical-Electrochemical Process to Capture CO<sub>2</sub> and Produce Hydrogen and Electricity |
| title_sort | combined chemical electrochemical process to capture co sub 2 sub and produce hydrogen and electricity |
| topic | CO<sub>2</sub> absorption process intensification hydrogen electrochemical cell |
| url | https://www.mdpi.com/1996-1073/14/18/5807 |
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