Ru–Ni/MgAl2O4 structured catalyst for CO2 methanation
Novel catalytic systems should be tested for the valorization of CO through the Sabatier reaction, since this process is gaining great importance within strategic sectors of the chemical industry. Therefore, this work explores the feasibility of structuring a catalyst (0.5%Ru–15%Ni/MgAlO) for CO met...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/222012 |
| Acceso en línea: | http://hdl.handle.net/10261/222012 |
| Access Level: | acceso abierto |
| Palabra clave: | Structured reactors Ru-Ni catalyst CO2 hydrogenation Carbon Capture and Utilization (CCU) Methane production pressurised CO2 methanation. |
| Sumario: | Novel catalytic systems should be tested for the valorization of CO through the Sabatier reaction, since this process is gaining great importance within strategic sectors of the chemical industry. Therefore, this work explores the feasibility of structuring a catalyst (0.5%Ru–15%Ni/MgAlO) for CO methanation using metal micromonoliths. The coating of the catalyst over the surface of the micromonoliths is carried out by means of the washcoating procedure and different characterization techniques are applied to establish possible changes in the catalyst during structuring. Regarding the performance in the Sabatier reaction, the structured systems are tested as well as the powder catalyst in order to establish the possible effects of the structuring processes. For this, variables such as catalyst loading, space velocity, inclusion of water in the feed-stream and the pressurization of the process were studied. In general, the structuring of the proposed catalyst by the reported procedure is absolutely feasible. There are no substantial changes in the main features of the catalyst and this means that its catalytic performance is not altered after the structuring process either. Furthermore, the structured system exhibits high stability in a long-term test and is comparable with other CO methanation catalysts reported in research to date. |
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