Cs promoted Ni/ZrO2-Al2O3 catalysts for dry reforming of methane: Promotional effects of Cs for enhanced catalytic activity and stability
Carbon Capture and Utilization (CCU) technologies offer a promising avenue for transforming captured CO2 into valuable products, serving as renewable fuels or precursors for high-value synthesis. This study explores the dry reforming of methane (DRM) as a viable pathway to convert captured CO2 and C...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Arabian Journal of Chemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1878535223010262 |
| _version_ | 1797356108215484416 |
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| author | Abdulaziz A.M. Abahussain Ahmed S. Al-Fatesh Sunit K. Singh Ghzzai Almutairi Anis H. Fakeeha Ahmed A. Ibrahim Ahmed E. Abasaeed Leone Frusteri Nitin K. Labhasetwar |
| author_facet | Abdulaziz A.M. Abahussain Ahmed S. Al-Fatesh Sunit K. Singh Ghzzai Almutairi Anis H. Fakeeha Ahmed A. Ibrahim Ahmed E. Abasaeed Leone Frusteri Nitin K. Labhasetwar |
| author_sort | Abdulaziz A.M. Abahussain |
| collection | DOAJ |
| description | Carbon Capture and Utilization (CCU) technologies offer a promising avenue for transforming captured CO2 into valuable products, serving as renewable fuels or precursors for high-value synthesis. This study explores the dry reforming of methane (DRM) as a viable pathway to convert captured CO2 and CH4 into syngas, achieving high equilibrium conversion through the use of suitable catalysts. Conventional nickel-based catalysts are susceptible to carbon deposition, necessitating innovative approaches to enhance their performance. A tubular microreactor was employed to conduct the reforming process at 800 °C, utilizing Cs-promoted Ni catalysts supported on 90 % Al2O3 and 10 % ZrO2-based support composition. Catalyst preparation involved the impregnation technique, and subsequent characterization employed N2-physisorption, XRD, H2-TPR, TGA, TPD, and Raman spectroscopy. The DRM reaction was systematically investigated using the Ni/ ZrO2- Al2O3 catalysts, with a specific focus on the catalytic effects of Cs promotion. Observations revealed that Cs incorporation onto the ZrO2- Al2O3 matrix led to a substantial increase in hydrogen yield and selectivity across all catalyst compositions, accompanied by a significant reduction in carbon deposition on the catalyst surface. The optimal Cs loading, determined to be 3 wt% over Ni/ ZrO2- Al2O3 catalyst, exhibited CO2 and CH4 conversions of 90 % and 87 %, respectively, with an H2/CO yield approaching 1 (0.95). This research underscores the potential of Cs-modified catalysts in enhancing the efficiency of DRM for CCU applications, providing valuable insights into optimizing catalyst formulations for improved performance in carbon transformation processes. |
| first_indexed | 2024-03-08T14:20:52Z |
| format | Article |
| id | doaj.art-29fe196b88974b3e9085b5d3823f5fb2 |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-03-08T14:20:52Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-29fe196b88974b3e9085b5d3823f5fb22024-01-14T05:37:57ZengElsevierArabian Journal of Chemistry1878-53522024-02-01172105564Cs promoted Ni/ZrO2-Al2O3 catalysts for dry reforming of methane: Promotional effects of Cs for enhanced catalytic activity and stabilityAbdulaziz A.M. Abahussain0Ahmed S. Al-Fatesh1Sunit K. Singh2Ghzzai Almutairi3Anis H. Fakeeha4Ahmed A. Ibrahim5Ahmed E. Abasaeed6Leone Frusteri7Nitin K. Labhasetwar8Chemical Engineering Department, College of Engineering, King Saud University P.O. Box 800, Riyadh 11421, Saudi ArabiaChemical Engineering Department, College of Engineering, King Saud University P.O. Box 800, Riyadh 11421, Saudi Arabia; Corresponding authors.Energy and Resource Management Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, IndiaHydrogen Technologies Institute, King Abdulaziz City for Science & Technology (KACST), Saudi Arabia; Corresponding authors.Chemical Engineering Department, College of Engineering, King Saud University P.O. Box 800, Riyadh 11421, Saudi ArabiaChemical Engineering Department, College of Engineering, King Saud University P.O. Box 800, Riyadh 11421, Saudi ArabiaChemical Engineering Department, College of Engineering, King Saud University P.O. Box 800, Riyadh 11421, Saudi ArabiaCNR-ITAE, Istituto di Tecnologie Avanzate per Energia “Nicola Giordano”, Via S. Lucia sopra Contesse 5, 98126, Messina, ItalyEnergy and Resource Management Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, India; Corresponding authors.Carbon Capture and Utilization (CCU) technologies offer a promising avenue for transforming captured CO2 into valuable products, serving as renewable fuels or precursors for high-value synthesis. This study explores the dry reforming of methane (DRM) as a viable pathway to convert captured CO2 and CH4 into syngas, achieving high equilibrium conversion through the use of suitable catalysts. Conventional nickel-based catalysts are susceptible to carbon deposition, necessitating innovative approaches to enhance their performance. A tubular microreactor was employed to conduct the reforming process at 800 °C, utilizing Cs-promoted Ni catalysts supported on 90 % Al2O3 and 10 % ZrO2-based support composition. Catalyst preparation involved the impregnation technique, and subsequent characterization employed N2-physisorption, XRD, H2-TPR, TGA, TPD, and Raman spectroscopy. The DRM reaction was systematically investigated using the Ni/ ZrO2- Al2O3 catalysts, with a specific focus on the catalytic effects of Cs promotion. Observations revealed that Cs incorporation onto the ZrO2- Al2O3 matrix led to a substantial increase in hydrogen yield and selectivity across all catalyst compositions, accompanied by a significant reduction in carbon deposition on the catalyst surface. The optimal Cs loading, determined to be 3 wt% over Ni/ ZrO2- Al2O3 catalyst, exhibited CO2 and CH4 conversions of 90 % and 87 %, respectively, with an H2/CO yield approaching 1 (0.95). This research underscores the potential of Cs-modified catalysts in enhancing the efficiency of DRM for CCU applications, providing valuable insights into optimizing catalyst formulations for improved performance in carbon transformation processes.http://www.sciencedirect.com/science/article/pii/S1878535223010262MethaneReformingSyngasCatalystCaesiumNickel |
| spellingShingle | Abdulaziz A.M. Abahussain Ahmed S. Al-Fatesh Sunit K. Singh Ghzzai Almutairi Anis H. Fakeeha Ahmed A. Ibrahim Ahmed E. Abasaeed Leone Frusteri Nitin K. Labhasetwar Cs promoted Ni/ZrO2-Al2O3 catalysts for dry reforming of methane: Promotional effects of Cs for enhanced catalytic activity and stability Arabian Journal of Chemistry Methane Reforming Syngas Catalyst Caesium Nickel |
| title | Cs promoted Ni/ZrO2-Al2O3 catalysts for dry reforming of methane: Promotional effects of Cs for enhanced catalytic activity and stability |
| title_full | Cs promoted Ni/ZrO2-Al2O3 catalysts for dry reforming of methane: Promotional effects of Cs for enhanced catalytic activity and stability |
| title_fullStr | Cs promoted Ni/ZrO2-Al2O3 catalysts for dry reforming of methane: Promotional effects of Cs for enhanced catalytic activity and stability |
| title_full_unstemmed | Cs promoted Ni/ZrO2-Al2O3 catalysts for dry reforming of methane: Promotional effects of Cs for enhanced catalytic activity and stability |
| title_short | Cs promoted Ni/ZrO2-Al2O3 catalysts for dry reforming of methane: Promotional effects of Cs for enhanced catalytic activity and stability |
| title_sort | cs promoted ni zro2 al2o3 catalysts for dry reforming of methane promotional effects of cs for enhanced catalytic activity and stability |
| topic | Methane Reforming Syngas Catalyst Caesium Nickel |
| url | http://www.sciencedirect.com/science/article/pii/S1878535223010262 |
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