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https://repositorio.ufrn.br/handle/123456789/33912| Título: | Use of perovskite-type lanthanum nickelate synthesized by the polymeric precursor method in the steam reforming Reaction of Methane |
| Autor(es): | Martinelli, Antonio Eduardo Martinelli, Daniele de Macedo Henrique Melo, Dulce Maria de Araújo Pedrosa, Anne Michelle Garrido Melo, Marcus Antônio de Freitas Batista, Mary Kalina Sarmento Bitencourt, Roberto C. |
| Palavras-chave: | Lanthanum Nickelate;Perovskite;Polymeric Precursor Method;Steam Reforming Reaction |
| Data do documento: | Jun-2012 |
| Editor: | Scientific Research Publishing |
| Referência: | MARTINELLI, Daniele M. H.; MELO, Dulce M. A.; PEDROSA, Anne M. Garrido; MARTINELLI, Antonio E.; MELO, Marcus A. de F.; BATISTA, Mary K. S.; BITENCOURT, Roberto C.. Use of Perovskite-Type Lanthanum Nickelate Synthesized by the Polymeric Precursor Method in the Steam Reforming Reaction of Methane. Materials Sciences And Applications, [S.L.], v. 03, n. 06, p. 363-368, 2012. Disponível em: https://www.scirp.org/journal/paperinformation.aspx?paperid=19824. Acesso em: 05 fev. 2021. http://dx.doi.org/10.4236/msa.2012.36052. |
| Resumo: | In the current work, LaNiO3 perovskite was synthesized using the polymeric precursor method. The materials were thermally treated at 300˚C for 2 hours, subsequently supported on alumina or zirconia and finally calcined at 800˚C for 4 hours. The resulting samples were characterized by X-ray diffraction, thermogravimetry, BET surface area and thermo-programmed reduction. Steam reforming reactions were carried out at 750˚C and 6 bar during 4 hours using a pilot reactor under a H2O:CH4 ratio of 2.5. The mass of catalysts was about 5.7 g. X-ray diffraction patterns confirmed the formation of the perovskite structure in all samples prepared. The results also showed that lanthanum nickelate was more efficient when supported on alumina than zirconia. Finally, it was observed that the methane conversion was approximately 94% and the selectivity to hydrogen was about 70%. In all cases low selectivity to CO and CO2 was verified |
| URI: | https://repositorio.ufrn.br/handle/123456789/33912 |
| ISSN: | 2153-1188 |
| Aparece nas coleções: | CT - DEMAT - Artigos publicados em periódicos IQ - Artigos publicados em periódicos |
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| UsePerovskite-TypeLanthanum_MARTINELLI_2012.pdf | 552,16 kB | Adobe PDF | Visualizar/Abrir |
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