Moderate-Temperature Carbon Capture Using Thermally Pre-Treated Dolomite: A Novel Approach
This study investigates a novel approach to moderate-temperature carbon capture by examining the enhanced performance of thermally pre-treated dolomite. To obtain mixed oxides, dolomite samples were prepared via calcination in a quartz cylindrical furnace under an ambient atmosphere at 900 °C, and s...
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2025-06-01
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| author | Iyiade G. Alalade Javier E. Morales-Mendoza Alma B. Jasso-Salcedo Jorge L. Domínguez-Arvizu Blanca C. Hernández-Majalca Hammed A. Salami José L. Bueno-Escobedo Luz I. Ibarra-Rodriguez Alejandro López-Ortiz Virginia H. Collins-Martínez |
| author_facet | Iyiade G. Alalade Javier E. Morales-Mendoza Alma B. Jasso-Salcedo Jorge L. Domínguez-Arvizu Blanca C. Hernández-Majalca Hammed A. Salami José L. Bueno-Escobedo Luz I. Ibarra-Rodriguez Alejandro López-Ortiz Virginia H. Collins-Martínez |
| author_sort | Iyiade G. Alalade |
| collection | DOAJ |
| description | This study investigates a novel approach to moderate-temperature carbon capture by examining the enhanced performance of thermally pre-treated dolomite. To obtain mixed oxides, dolomite samples were prepared via calcination in a quartz cylindrical furnace under an ambient atmosphere at 900 °C, and subsequently thermally pre-treated under an inert (argon) stream at 650 °C. Characterization of the as-prepared samples involved morphological, structural, textural, and optical features examined through XRD, BET, SEM-EDS, FT-IR, and RAMAN, XPS, and UV-vis spectroscopy, whereas TGA and subsequent multicyclic tests were used to study the CO<sub>2</sub> sorption. The dolomite sample calcined at 900 °C for 60 min, and after being activated under an inert atmosphere (argon), labeled PCD60Act, exhibited the highest CO<sub>2</sub> uptake of 0.477 g<sub>CO2</sub>/g<sub>sorbent</sub>; after 15 sorption–regeneration cycles, it still retained a CO<sub>2</sub> uptake of 0.38 g<sub>CO2</sub>/g<sub>sorbent</sub> at 650 °C, and it was also successfully regenerated at this moderate temperature, demonstrating 84% capture capacity retention. These remarkable results are explained by the crystalline defects generated during the thermal pre-treatments of the dolomite. This research offers valuable perspectives on the viability of employing thermally pre-treated dolomite as an inexpensive, thermally stable, and moderate-temperature regenerable CaO-based sorbent for applications in CO<sub>2</sub> removal in the context of integrated carbon capture and conversion (ICCC) for the production of high-purity hydrogen. |
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| language | English |
| publishDate | 2025-06-01 |
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| spelling | doaj-art-19e622bee9b64c4d8f3a0ddaa823540f2025-06-25T13:36:26ZengMDPI AGC2311-56292025-06-011123710.3390/c11020037Moderate-Temperature Carbon Capture Using Thermally Pre-Treated Dolomite: A Novel ApproachIyiade G. Alalade0Javier E. Morales-Mendoza1Alma B. Jasso-Salcedo2Jorge L. Domínguez-Arvizu3Blanca C. Hernández-Majalca4Hammed A. Salami5José L. Bueno-Escobedo6Luz I. Ibarra-Rodriguez7Alejandro López-Ortiz8Virginia H. Collins-Martínez9Departamento de Ingeniería y Química de Materiales, Centro de Investigación en Materiales Avanzados S.C., Miguel de Cervantes 120, Chihuahua 31136, MexicoDepartamento de Ingeniería y Química de Materiales, Centro de Investigación en Materiales Avanzados S.C., Miguel de Cervantes 120, Chihuahua 31136, MexicoDepartamento de Ingeniería y Química de Materiales, Centro de Investigación en Materiales Avanzados S.C., Miguel de Cervantes 120, Chihuahua 31136, MexicoDepartamento de Ingeniería y Química de Materiales, Centro de Investigación en Materiales Avanzados S.C., Miguel de Cervantes 120, Chihuahua 31136, MexicoDepartamento de Ingeniería y Química de Materiales, Centro de Investigación en Materiales Avanzados S.C., Miguel de Cervantes 120, Chihuahua 31136, MexicoDepartamento de Ingeniería y Química de Materiales, Centro de Investigación en Materiales Avanzados S.C., Miguel de Cervantes 120, Chihuahua 31136, MexicoDepartamento de Ingeniería y Química de Materiales, Centro de Investigación en Materiales Avanzados S.C., Miguel de Cervantes 120, Chihuahua 31136, MexicoDepartamento de Ingeniería y Química de Materiales, Centro de Investigación en Materiales Avanzados S.C., Miguel de Cervantes 120, Chihuahua 31136, MexicoDepartamento de Ingeniería y Química de Materiales, Centro de Investigación en Materiales Avanzados S.C., Miguel de Cervantes 120, Chihuahua 31136, MexicoDepartamento de Ingeniería y Química de Materiales, Centro de Investigación en Materiales Avanzados S.C., Miguel de Cervantes 120, Chihuahua 31136, MexicoThis study investigates a novel approach to moderate-temperature carbon capture by examining the enhanced performance of thermally pre-treated dolomite. To obtain mixed oxides, dolomite samples were prepared via calcination in a quartz cylindrical furnace under an ambient atmosphere at 900 °C, and subsequently thermally pre-treated under an inert (argon) stream at 650 °C. Characterization of the as-prepared samples involved morphological, structural, textural, and optical features examined through XRD, BET, SEM-EDS, FT-IR, and RAMAN, XPS, and UV-vis spectroscopy, whereas TGA and subsequent multicyclic tests were used to study the CO<sub>2</sub> sorption. The dolomite sample calcined at 900 °C for 60 min, and after being activated under an inert atmosphere (argon), labeled PCD60Act, exhibited the highest CO<sub>2</sub> uptake of 0.477 g<sub>CO2</sub>/g<sub>sorbent</sub>; after 15 sorption–regeneration cycles, it still retained a CO<sub>2</sub> uptake of 0.38 g<sub>CO2</sub>/g<sub>sorbent</sub> at 650 °C, and it was also successfully regenerated at this moderate temperature, demonstrating 84% capture capacity retention. These remarkable results are explained by the crystalline defects generated during the thermal pre-treatments of the dolomite. This research offers valuable perspectives on the viability of employing thermally pre-treated dolomite as an inexpensive, thermally stable, and moderate-temperature regenerable CaO-based sorbent for applications in CO<sub>2</sub> removal in the context of integrated carbon capture and conversion (ICCC) for the production of high-purity hydrogen.https://www.mdpi.com/2311-5629/11/2/37thermal pre-treatmentdolomiteCaO-based sorbenthydrogenCO<sub>2</sub> captureICCC |
| spellingShingle | Iyiade G. Alalade Javier E. Morales-Mendoza Alma B. Jasso-Salcedo Jorge L. Domínguez-Arvizu Blanca C. Hernández-Majalca Hammed A. Salami José L. Bueno-Escobedo Luz I. Ibarra-Rodriguez Alejandro López-Ortiz Virginia H. Collins-Martínez Moderate-Temperature Carbon Capture Using Thermally Pre-Treated Dolomite: A Novel Approach C thermal pre-treatment dolomite CaO-based sorbent hydrogen CO<sub>2</sub> capture ICCC |
| title | Moderate-Temperature Carbon Capture Using Thermally Pre-Treated Dolomite: A Novel Approach |
| title_full | Moderate-Temperature Carbon Capture Using Thermally Pre-Treated Dolomite: A Novel Approach |
| title_fullStr | Moderate-Temperature Carbon Capture Using Thermally Pre-Treated Dolomite: A Novel Approach |
| title_full_unstemmed | Moderate-Temperature Carbon Capture Using Thermally Pre-Treated Dolomite: A Novel Approach |
| title_short | Moderate-Temperature Carbon Capture Using Thermally Pre-Treated Dolomite: A Novel Approach |
| title_sort | moderate temperature carbon capture using thermally pre treated dolomite a novel approach |
| topic | thermal pre-treatment dolomite CaO-based sorbent hydrogen CO<sub>2</sub> capture ICCC |
| url | https://www.mdpi.com/2311-5629/11/2/37 |
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