Catalytic performance of Cu/ZnO/Al2O3/ZrO2 for slurry methanol synthesis from CO hydrogenation: Effect of Cu/Zn molar ratio
Catalytic hydrogenation of carbon dioxide (CO2) to methanol is an attractive way to recycle and utilize CO2. A series of Cu/ZnO/Al2O3/ZrO2 catalysts (CZAZ) containing different molar ratios of Cu/Zn were prepared by the co-precipitation method. The catalysts were characterized by temperature-program...
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Penerbit Universiti Kebangsaan Malaysia
2018
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my.utp.eprints.219062018-08-01T01:13:31Z Catalytic performance of Cu/ZnO/Al2O3/ZrO2 for slurry methanol synthesis from CO hydrogenation: Effect of Cu/Zn molar ratio Shaharun, S. Shaharun, M.S. Shah, M.F.M. Amer, N.A. Catalytic hydrogenation of carbon dioxide (CO2) to methanol is an attractive way to recycle and utilize CO2. A series of Cu/ZnO/Al2O3/ZrO2 catalysts (CZAZ) containing different molar ratios of Cu/Zn were prepared by the co-precipitation method. The catalysts were characterized by temperature-programmed reduction (TPR), field emission scanning electron microscopy-energy dispersive x-ray analysis (FESEM-EDX) and X-ray diffraction (XRD). Higher surface area, SABET values (42.6-59.9 m2/g) were recorded at low (1) and high (5) Cu/Zn ratios with the minimum value of 35.71 m2/g was found for a Cu/Zn of 3. The reducibility of the metal oxides formed after calcination of catalyst samples was also affected due to change in metal-support interaction. At a reaction temperature of 443 K, total gas pressure of 3.0 MPa and 0.1 g/ mL of the CZAZ catalyst, the selectivity to methanol decreased as the Cu/Zn molar ratio increased, and the maximum selectivity of 93.9 was achieved at Cu/Zn molar ratio of 0.33. With a reaction time of 3h, the best performing catalyst was CZAZ75 with Cu/Zn molar ratio of 5 giving methanol yield of 6.4. Penerbit Universiti Kebangsaan Malaysia 2018 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041930035&doi=10.17576%2fjsm-2018-4701-24&partnerID=40&md5=62163667cfe50e70c41b2267cf68cc5d Shaharun, S. and Shaharun, M.S. and Shah, M.F.M. and Amer, N.A. (2018) Catalytic performance of Cu/ZnO/Al2O3/ZrO2 for slurry methanol synthesis from CO hydrogenation: Effect of Cu/Zn molar ratio. Sains Malaysiana, 47 (1). pp. 207-214. http://eprints.utp.edu.my/21906/ |
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Catalytic hydrogenation of carbon dioxide (CO2) to methanol is an attractive way to recycle and utilize CO2. A series of Cu/ZnO/Al2O3/ZrO2 catalysts (CZAZ) containing different molar ratios of Cu/Zn were prepared by the co-precipitation method. The catalysts were characterized by temperature-programmed reduction (TPR), field emission scanning electron microscopy-energy dispersive x-ray analysis (FESEM-EDX) and X-ray diffraction (XRD). Higher surface area, SABET values (42.6-59.9 m2/g) were recorded at low (1) and high (5) Cu/Zn ratios with the minimum value of 35.71 m2/g was found for a Cu/Zn of 3. The reducibility of the metal oxides formed after calcination of catalyst samples was also affected due to change in metal-support interaction. At a reaction temperature of 443 K, total gas pressure of 3.0 MPa and 0.1 g/ mL of the CZAZ catalyst, the selectivity to methanol decreased as the Cu/Zn molar ratio increased, and the maximum selectivity of 93.9 was achieved at Cu/Zn molar ratio of 0.33. With a reaction time of 3h, the best performing catalyst was CZAZ75 with Cu/Zn molar ratio of 5 giving methanol yield of 6.4. |
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Shaharun, S. Shaharun, M.S. Shah, M.F.M. Amer, N.A. |
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Shaharun, S. Shaharun, M.S. Shah, M.F.M. Amer, N.A. Catalytic performance of Cu/ZnO/Al2O3/ZrO2 for slurry methanol synthesis from CO hydrogenation: Effect of Cu/Zn molar ratio |
author_facet |
Shaharun, S. Shaharun, M.S. Shah, M.F.M. Amer, N.A. |
author_sort |
Shaharun, S. |
title |
Catalytic performance of Cu/ZnO/Al2O3/ZrO2 for slurry methanol synthesis from CO hydrogenation: Effect of Cu/Zn molar ratio |
title_short |
Catalytic performance of Cu/ZnO/Al2O3/ZrO2 for slurry methanol synthesis from CO hydrogenation: Effect of Cu/Zn molar ratio |
title_full |
Catalytic performance of Cu/ZnO/Al2O3/ZrO2 for slurry methanol synthesis from CO hydrogenation: Effect of Cu/Zn molar ratio |
title_fullStr |
Catalytic performance of Cu/ZnO/Al2O3/ZrO2 for slurry methanol synthesis from CO hydrogenation: Effect of Cu/Zn molar ratio |
title_full_unstemmed |
Catalytic performance of Cu/ZnO/Al2O3/ZrO2 for slurry methanol synthesis from CO hydrogenation: Effect of Cu/Zn molar ratio |
title_sort |
catalytic performance of cu/zno/al2o3/zro2 for slurry methanol synthesis from co hydrogenation: effect of cu/zn molar ratio |
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Penerbit Universiti Kebangsaan Malaysia |
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2018 |
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https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041930035&doi=10.17576%2fjsm-2018-4701-24&partnerID=40&md5=62163667cfe50e70c41b2267cf68cc5d http://eprints.utp.edu.my/21906/ |
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