Optimizing MgO Content for Boosting γ-Al<sub>2</sub>O<sub>3</sub>-Supported Ni Catalyst in Dry Reforming of Methane
The dry reforming of methane (DRM) process has attracted research interest because of its ability to mitigate the detrimental impacts of greenhouse gases such as methane (CH<sub>4</sub>) and carbon dioxide (CO<sub>2</sub>) and produce alcohols and clean fuel. In view of this...
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MDPI AG
2021-10-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/11/10/1233 |
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| author | Abdulaziz Bagabas Ahmed Sadeq Al-Fatesh Samsudeen Olajide Kasim Rasheed Arasheed Ahmed Aidid Ibrahim Rawan Ashamari Khalid Anojaidi Anis Hamza Fakeeha Jehad K. Abu-Dahrieh Ahmed Elhag Abasaeed |
| author_facet | Abdulaziz Bagabas Ahmed Sadeq Al-Fatesh Samsudeen Olajide Kasim Rasheed Arasheed Ahmed Aidid Ibrahim Rawan Ashamari Khalid Anojaidi Anis Hamza Fakeeha Jehad K. Abu-Dahrieh Ahmed Elhag Abasaeed |
| author_sort | Abdulaziz Bagabas |
| collection | DOAJ |
| description | The dry reforming of methane (DRM) process has attracted research interest because of its ability to mitigate the detrimental impacts of greenhouse gases such as methane (CH<sub>4</sub>) and carbon dioxide (CO<sub>2</sub>) and produce alcohols and clean fuel. In view of this importance of DRM, we disclosed the efficiency of a new nickel-based catalyst, which was promoted with magnesia (MgO) and supported over gamma-alumina (γ-Al<sub>2</sub>O<sub>3</sub>) doped with silica (SiO<sub>2</sub>), toward DRM. The synthesized catalysts were characterized by H<sub>2</sub> temperature-programmed reduction (H<sub>2</sub>-TPR), X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Thermogravimetric analysis (TGA), and Transmission electron microscopy (TEM) techniques. The effect of MgO weight percent loading (0.0, 1.0, 2.0, and 3.0 wt. %) was examined because the catalytic performance was found to be a function of this parameter. An optimum loading of 2.0 wt. % of MgO was obtained, where the conversion of CH<sub>4</sub> and CO<sub>2</sub> at 800 °C were 86% and 91%, respectively, while the syngas (H<sub>2</sub>/CO) ratios relied on temperature and were in the range of 0.85 to 0.95. The TGA measurement of the best catalyst, which was operated over a 15-h reaction time, displayed negligible weight loss (<9.0 wt. %) due to carbon deposition, indicating the good resistance of our catalyst system to the deposition of carbon owing to the dopant and the modifier. TEM images showed the presence of multiwalled carbon nanotubes, confirming the TGA. |
| first_indexed | 2024-03-10T06:40:43Z |
| format | Article |
| id | doaj.art-ad1a94a5d3024a59ad80f5271e5a5ab9 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T06:40:43Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-ad1a94a5d3024a59ad80f5271e5a5ab92023-11-22T17:44:17ZengMDPI AGCatalysts2073-43442021-10-011110123310.3390/catal11101233Optimizing MgO Content for Boosting γ-Al<sub>2</sub>O<sub>3</sub>-Supported Ni Catalyst in Dry Reforming of MethaneAbdulaziz Bagabas0Ahmed Sadeq Al-Fatesh1Samsudeen Olajide Kasim2Rasheed Arasheed3Ahmed Aidid Ibrahim4Rawan Ashamari5Khalid Anojaidi6Anis Hamza Fakeeha7Jehad K. Abu-Dahrieh8Ahmed Elhag Abasaeed9National Petrochemical Technology Center (NPTC), Materials Science Research Institute (MSRI), King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, 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 ArabiaNational Petrochemical Technology Center (NPTC), Materials Science Research Institute (MSRI), King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi ArabiaChemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi ArabiaNational Petrochemical Technology Center (NPTC), Materials Science Research Institute (MSRI), King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi ArabiaNational Petrochemical Technology Center (NPTC), Materials Science Research Institute (MSRI), King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi ArabiaChemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi ArabiaSchool of Chemistry and Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, UKChemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi ArabiaThe dry reforming of methane (DRM) process has attracted research interest because of its ability to mitigate the detrimental impacts of greenhouse gases such as methane (CH<sub>4</sub>) and carbon dioxide (CO<sub>2</sub>) and produce alcohols and clean fuel. In view of this importance of DRM, we disclosed the efficiency of a new nickel-based catalyst, which was promoted with magnesia (MgO) and supported over gamma-alumina (γ-Al<sub>2</sub>O<sub>3</sub>) doped with silica (SiO<sub>2</sub>), toward DRM. The synthesized catalysts were characterized by H<sub>2</sub> temperature-programmed reduction (H<sub>2</sub>-TPR), X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Thermogravimetric analysis (TGA), and Transmission electron microscopy (TEM) techniques. The effect of MgO weight percent loading (0.0, 1.0, 2.0, and 3.0 wt. %) was examined because the catalytic performance was found to be a function of this parameter. An optimum loading of 2.0 wt. % of MgO was obtained, where the conversion of CH<sub>4</sub> and CO<sub>2</sub> at 800 °C were 86% and 91%, respectively, while the syngas (H<sub>2</sub>/CO) ratios relied on temperature and were in the range of 0.85 to 0.95. The TGA measurement of the best catalyst, which was operated over a 15-h reaction time, displayed negligible weight loss (<9.0 wt. %) due to carbon deposition, indicating the good resistance of our catalyst system to the deposition of carbon owing to the dopant and the modifier. TEM images showed the presence of multiwalled carbon nanotubes, confirming the TGA.https://www.mdpi.com/2073-4344/11/10/1233methanecarbon dioxide reformingmagnesium oxideγ-alumina doped with silica |
| spellingShingle | Abdulaziz Bagabas Ahmed Sadeq Al-Fatesh Samsudeen Olajide Kasim Rasheed Arasheed Ahmed Aidid Ibrahim Rawan Ashamari Khalid Anojaidi Anis Hamza Fakeeha Jehad K. Abu-Dahrieh Ahmed Elhag Abasaeed Optimizing MgO Content for Boosting γ-Al<sub>2</sub>O<sub>3</sub>-Supported Ni Catalyst in Dry Reforming of Methane Catalysts methane carbon dioxide reforming magnesium oxide γ-alumina doped with silica |
| title | Optimizing MgO Content for Boosting γ-Al<sub>2</sub>O<sub>3</sub>-Supported Ni Catalyst in Dry Reforming of Methane |
| title_full | Optimizing MgO Content for Boosting γ-Al<sub>2</sub>O<sub>3</sub>-Supported Ni Catalyst in Dry Reforming of Methane |
| title_fullStr | Optimizing MgO Content for Boosting γ-Al<sub>2</sub>O<sub>3</sub>-Supported Ni Catalyst in Dry Reforming of Methane |
| title_full_unstemmed | Optimizing MgO Content for Boosting γ-Al<sub>2</sub>O<sub>3</sub>-Supported Ni Catalyst in Dry Reforming of Methane |
| title_short | Optimizing MgO Content for Boosting γ-Al<sub>2</sub>O<sub>3</sub>-Supported Ni Catalyst in Dry Reforming of Methane |
| title_sort | optimizing mgo content for boosting γ al sub 2 sub o sub 3 sub supported ni catalyst in dry reforming of methane |
| topic | methane carbon dioxide reforming magnesium oxide γ-alumina doped with silica |
| url | https://www.mdpi.com/2073-4344/11/10/1233 |
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