Performance and Stability of Doped Ceria–Zirconia Catalyst for a Multifuel Reforming
In the present work, the catalytic behavior of nickel-based catalysts supported on ceria/zirconia, undoped and doped with lanthanum and neodymium (3.5Ni/Ce<sub>0.8</sub>La<sub>0.5</sub>Nd<sub>0.2</sub>Zr<sub>0.13</sub>O<sub>2−x</sub>), was...
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MDPI AG
2023-01-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/13/1/165 |
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| author | Patrizia Frontera Angela Malara Anastasia Macario Mariachiara Miceli Lucio Bonaccorsi Marta Boaro Alfonsina Pappacena Alessandro Trovarelli Pier Luigi Antonucci |
| author_facet | Patrizia Frontera Angela Malara Anastasia Macario Mariachiara Miceli Lucio Bonaccorsi Marta Boaro Alfonsina Pappacena Alessandro Trovarelli Pier Luigi Antonucci |
| author_sort | Patrizia Frontera |
| collection | DOAJ |
| description | In the present work, the catalytic behavior of nickel-based catalysts supported on ceria/zirconia, undoped and doped with lanthanum and neodymium (3.5Ni/Ce<sub>0.8</sub>La<sub>0.5</sub>Nd<sub>0.2</sub>Zr<sub>0.13</sub>O<sub>2−x</sub>), was investigated under different reactions: steam reforming, partial oxidation and autothermal reforming of different fuels (methane, biogas, and propane). The catalytic properties of these catalysts were evaluated at a temperature of 800 °C, under atmospheric pressure, at GSHV = 120,000 h<sup>−1</sup>, using steam/carbon and oxygen/carbon ratio, respectively, of S/C = 2.5 and O/C = 0.5 and, in the case of autothermal conditions, with the addition of H<sub>2</sub>S (100 ppm) as a contaminant. Depending on the tested fuel, ATR, SR, and POX reactions over doped and undoped catalysts showed different results. In particular, the doped catalyst, due to neodymium and lanthanum doping, better distributed nickel species on the catalyst surface, promoting a higher concentration of defect groups and oxygen vacancies. This resulted in improved catalytic performance and resistance to deactivation. Endurance catalytic test also confirmed the beneficial effect of the doped catalysts. |
| first_indexed | 2024-03-09T13:14:28Z |
| format | Article |
| id | doaj.art-587f58f9a01447ce956bdb47bb3e8cc4 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T13:14:28Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-587f58f9a01447ce956bdb47bb3e8cc42023-11-30T21:38:14ZengMDPI AGCatalysts2073-43442023-01-0113116510.3390/catal13010165Performance and Stability of Doped Ceria–Zirconia Catalyst for a Multifuel ReformingPatrizia Frontera0Angela Malara1Anastasia Macario2Mariachiara Miceli3Lucio Bonaccorsi4Marta Boaro5Alfonsina Pappacena6Alessandro Trovarelli7Pier Luigi Antonucci8Department of Civil, Energy, Environment and Material Engineering, University Mediterranea of Reggio Calabria, 89124 Reggio Calabria, ItalyDepartment of Civil, Energy, Environment and Material Engineering, University Mediterranea of Reggio Calabria, 89124 Reggio Calabria, ItalyDepartment of Environmental Engineering, University of Calabria, 87036 Cosenza, ItalyDepartment of Civil, Energy, Environment and Material Engineering, University Mediterranea of Reggio Calabria, 89124 Reggio Calabria, ItalyDepartment of Civil, Energy, Environment and Material Engineering, University Mediterranea of Reggio Calabria, 89124 Reggio Calabria, ItalyPolytechnic Department of Engineering and Architecture (DPIA), University of Udine, 33100 Udine, ItalyPolytechnic Department of Engineering and Architecture (DPIA), University of Udine, 33100 Udine, ItalyPolytechnic Department of Engineering and Architecture (DPIA), University of Udine, 33100 Udine, ItalyCNR, Institute of Advanced Technologies for Energy “Nicola Giordano”—ITAE, 98122 Messina, ItalyIn the present work, the catalytic behavior of nickel-based catalysts supported on ceria/zirconia, undoped and doped with lanthanum and neodymium (3.5Ni/Ce<sub>0.8</sub>La<sub>0.5</sub>Nd<sub>0.2</sub>Zr<sub>0.13</sub>O<sub>2−x</sub>), was investigated under different reactions: steam reforming, partial oxidation and autothermal reforming of different fuels (methane, biogas, and propane). The catalytic properties of these catalysts were evaluated at a temperature of 800 °C, under atmospheric pressure, at GSHV = 120,000 h<sup>−1</sup>, using steam/carbon and oxygen/carbon ratio, respectively, of S/C = 2.5 and O/C = 0.5 and, in the case of autothermal conditions, with the addition of H<sub>2</sub>S (100 ppm) as a contaminant. Depending on the tested fuel, ATR, SR, and POX reactions over doped and undoped catalysts showed different results. In particular, the doped catalyst, due to neodymium and lanthanum doping, better distributed nickel species on the catalyst surface, promoting a higher concentration of defect groups and oxygen vacancies. This resulted in improved catalytic performance and resistance to deactivation. Endurance catalytic test also confirmed the beneficial effect of the doped catalysts.https://www.mdpi.com/2073-4344/13/1/165reforminghydrogensulfur tolerant catalystsnickelneodymium |
| spellingShingle | Patrizia Frontera Angela Malara Anastasia Macario Mariachiara Miceli Lucio Bonaccorsi Marta Boaro Alfonsina Pappacena Alessandro Trovarelli Pier Luigi Antonucci Performance and Stability of Doped Ceria–Zirconia Catalyst for a Multifuel Reforming Catalysts reforming hydrogen sulfur tolerant catalysts nickel neodymium |
| title | Performance and Stability of Doped Ceria–Zirconia Catalyst for a Multifuel Reforming |
| title_full | Performance and Stability of Doped Ceria–Zirconia Catalyst for a Multifuel Reforming |
| title_fullStr | Performance and Stability of Doped Ceria–Zirconia Catalyst for a Multifuel Reforming |
| title_full_unstemmed | Performance and Stability of Doped Ceria–Zirconia Catalyst for a Multifuel Reforming |
| title_short | Performance and Stability of Doped Ceria–Zirconia Catalyst for a Multifuel Reforming |
| title_sort | performance and stability of doped ceria zirconia catalyst for a multifuel reforming |
| topic | reforming hydrogen sulfur tolerant catalysts nickel neodymium |
| url | https://www.mdpi.com/2073-4344/13/1/165 |
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