| Campo DC | Valor | Idioma |
|---|
| dc.contributor.author | Silveira, Edgar Amaral | - |
| dc.contributor.author | Galvão, Luiz Gustavo Oliveira | - |
| dc.contributor.author | Macedo, Lucélia Alves de | - |
| dc.contributor.author | Sá, Isabella A. | - |
| dc.contributor.author | Chaves, Bruno Sant'Anna | - |
| dc.contributor.author | Morais, Marcus Vinícius Girão de | - |
| dc.contributor.author | Rousset, Patrick | - |
| dc.contributor.author | Caldeira-Pires, Armando de Azevedo | - |
| dc.date.accessioned | 2021-01-12T18:23:36Z | - |
| dc.date.available | 2021-01-12T18:23:36Z | - |
| dc.date.issued | 2020-10-28 | - |
| dc.identifier.citation | SILVEIRA, Edgar A. et al. Thermo-acoustic catalytic effect on oxidizing woody torrefaction. Processes, v. 8, n. 11, 1361, 2020. DOI: https://doi.org/10.3390/pr8111361. Disponível em: https://www.mdpi.com/2227-9717/8/11/1361/htm. Acesso em: 12 jan. 2021. | pt_BR |
| dc.identifier.uri | https://repositorio.unb.br/handle/10482/39887 | - |
| dc.language.iso | Inglês | pt_BR |
| dc.publisher | MDPI | pt_BR |
| dc.rights | Acesso Aberto | pt_BR |
| dc.title | Thermo-acoustic catalytic effect on oxidizing woody torrefaction | pt_BR |
| dc.type | Artigo | pt_BR |
| dc.subject.keyword | Torrefação | pt_BR |
| dc.subject.keyword | Biomassa | pt_BR |
| dc.subject.keyword | Termoacústica | pt_BR |
| dc.subject.keyword | Catálise | pt_BR |
| dc.subject.keyword | Modelagem numérica | pt_BR |
| dc.rights.license | © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | pt_BR |
| dc.identifier.doi | https://doi.org/10.3390/pr8111361 | pt_BR |
| dc.description.abstract1 | The torrefaction (mild pyrolysis) process modifies biomass chemical and physical properties and is applied as a thermochemical route to upgrade solid fuel. In this work, the catalytic effect of thermo-acoustic on oxidizing woody torrefaction is assessed. The combined effect of two acoustic frequencies (1411, 2696 Hz) and three temperatures (230, 250, and 290 °C) was evaluated through weight loss and its deviation curves, calculated torrefaction severity index (TSI), as well as proximate, calorific, and compression strength analysis of Eucalyptus grandis. A new index to account for the catalytic effects on torrefaction (TCEI) was introduced, providing the quantitative analysis of acoustic frequencies influence. A two-step consecutive reaction numerical model allowed the thermo-acoustic experiment evaluation. For instance, the thermogravimetric profiles revealed that the acoustic field has a catalytic effect on wood torrefaction and enhances the biomass oxidation process for severe treatments. The kinetic simulation of the acoustic coupling resulted in faster conversion rates for the solid pseudo-components showing the boosting effect of acoustic frequencies in anticipating hemicellulose decomposition and enhancing second step oxidizing reaction. | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0003-4800-4513 | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0003-4809-5291 | pt_BR |
| Aparece nas coleções: | Artigos publicados em periódicos e afins
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