Use and reusability of Na/Nb<u>2</u>O<u>5</u> catalyst in the ethanolysis of different feedstocks for biofuel production: Confirmation of heterogeneity of the catalyst (2020)
- Authors:
- USP affiliated authors: CASTRO, HEIZIR FERREIRA DE - EEL ; CARVALHO, ANA KARINE FURTADO DE - EEL ; BENTO, HEITOR BUZETTI SIMÕES - EEL ; LIMA, ROSEMAR DE - EEL
- Unidade: EEL
- DOI: 10.1021/acs.energyfuels.0c00246
- Subjects: LIPÍDEOS; CATALISADORES; MATERIAIS COMPÓSITOS; BIODIESEL; COMPOSTOS ORGÂNICOS; SÓDIO
- Agências de fomento:
- Language: Inglês
- Abstract: Niobium oxide impregnated with sodium (Na/Nb2O5) was used as a heterogeneous catalyst to produce biofuel from conventional raw materials, such as soybean oil and beef tallow, and non-conventional feedstocks, including andiroba, babassu, coconut, crambe, macaw palm, palm, palm kernel, and jatropha oils. The trials were performed at fixed conditions using 10% catalyst at 78.5 °C under stirring (600 rpm) for 5 h. On the basis of the results generated by gas and liquid chromatographies, high catalytic activity was found for all tested feedstocks, revealing yields higher than 95%. The purity of the ethyl esters was validated by thermogravimetric analysis and nuclear magnetic resonance. The Na/Nb2O5 catalyst performed efficiently, converting the fatty acids present in the lipid raw materials to the ethyl esters, and showed high stability in consecutive batches, generating products that meet the specificity of international standards. The heterogeneity of the catalyst was also confirmed by determining the sodium concentration in both biodiesel and the catalyst after consecutive batch runs.
- Source:
- Título: Energy & fuels
- ISSN: 08870624
- Volume/Número/Paginação/Ano: v. 34, p. 7105-7111, 2020
- Este periódico é de assinatura
- Este artigo NÃO é de acesso aberto
- Cor do Acesso Aberto: closed
-
ABNT
CARVALHO, Ana Karine Furtado de et al. Use and reusability of Na/Nb<u>2</u>O<u>5</u> catalyst in the ethanolysis of different feedstocks for biofuel production: Confirmation of heterogeneity of the catalyst. Energy & fuels, v. 34, p. 7105-7111, 2020Tradução . . Disponível em: https://doi.org/10.1021/acs.energyfuels.0c00246. Acesso em: 04 out. 2024. -
APA
Carvalho, A. K. F. de, Bento, H. B. S., LIMA, R. O. S. E. M. A. R., & Castro, H. F. de. (2020). Use and reusability of Na/Nb<u>2</u>O<u>5</u> catalyst in the ethanolysis of different feedstocks for biofuel production: Confirmation of heterogeneity of the catalyst. Energy & fuels, 34, 7105-7111. doi:10.1021/acs.energyfuels.0c00246 -
NLM
Carvalho AKF de, Bento HBS, LIMA ROSEMAR, Castro HF de. Use and reusability of Na/Nb<u>2</u>O<u>5</u> catalyst in the ethanolysis of different feedstocks for biofuel production: Confirmation of heterogeneity of the catalyst [Internet]. Energy & fuels. 2020 ; 34 7105-7111.[citado 2024 out. 04 ] Available from: https://doi.org/10.1021/acs.energyfuels.0c00246 -
Vancouver
Carvalho AKF de, Bento HBS, LIMA ROSEMAR, Castro HF de. Use and reusability of Na/Nb<u>2</u>O<u>5</u> catalyst in the ethanolysis of different feedstocks for biofuel production: Confirmation of heterogeneity of the catalyst [Internet]. Energy & fuels. 2020 ; 34 7105-7111.[citado 2024 out. 04 ] Available from: https://doi.org/10.1021/acs.energyfuels.0c00246 - Use and reusability of Na/Nb<u>2</u>O<u>5</u> catalyst in the ethanolysis of different feedstocks for biofuel production: Confirmation of heterogeneity of the catalyst
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Informações sobre o DOI: 10.1021/acs.energyfuels.0c00246 (Fonte: oaDOI API)
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