Data/hora: 07/06/2024 08:35:21

Biblioteca(s): | Embrapa Solos.
Data corrente: | 27/11/2018
Data da última atualização: | 11/11/2021
Autoria: | TINTNER, J.; PREIMESBERGER, C.; PFEIFER, C.; SOLDO, D.; OTTNER, F.; WRIESSNIG, K.; RENNHOFER, H.; LICHTENEGGER, H.; NOVOTNY, E. H.; SMIDT, E.
Afiliação: | JOHANNES TINTNER, UNIVERSITY OF NATURAL RESOURCES AND LIFE SCIENCES, VIENNA, AUSTRIA; CHRISTOPH PREIMESBERGER, UNIVERSITY OF NATURAL RESOURCES AND LIFE SCIENCES, VIENNA, AUSTRIA; CHRISTOPH PFEIFER, UNIVERSITY OF NATURAL RESOURCES AND LIFE SCIENCES, VIENNA, AUSTRIA; DENIS SOLDO, UNIVERSITY OF NATURAL RESOURCES AND LIFE SCIENCES, VIENNA, AUSTRIA; FRANZ OTTNER, UNIVERSITY OF NATURAL RESOURCES AND LIFE SCIENCES, VIENNA, AUSTRIA; KARIN WRIESSNIG, UNIVERSITY OF NATURAL RESOURCES AND LIFE SCIENCES, VIENNA, AUSTRIA; HARALD RENNHOFER, UNIVERSITY OF NATURAL RESOURCES AND LIFE SCIENCES, VIENNA, AUSTRIA; HELGA LICHTENEGGER, UNIVERSITY OF NATURAL RESOURCES AND LIFE SCIENCES, VIENNA, AUSTRIA; ETELVINO HENRIQUE NOVOTNY, CNPS; ENA SMIDT, UNIVERSITY OF NATURAL RESOURCES AND LIFE SCIENCES, VIENNA, AUSTRIA.
Título: | Impact of pyrolysis temperature on charcoal characteristics.
Ano de publicação: | 2018
Fonte/Imprenta: | Industrial & Engineering Chemistry Research, v. 57, n. 46, p. 15613-15619, 2018.
DOI: | https://doi.org/10.1021/acs.iecr.8b04094
Idioma: | Inglês
Conteúdo: | Charcoals were produced from spruce and beech wood under laboratory conditions at different pyrolysis temperatures (300-1300 °C). Characterization of these charcoals was conducted using eight analytical methods. Each method describes specific changes in the temperature range until 1300 °C. Therefore, the combination of these methods provides comprehensive information on different pyrolysis stages. Fourier transform infrared (FTIR) spectroscopy, NMR spectroscopy, and thermogravimetry display changes until 700 °C. A prediction model for pyrolysis temperature until 800 °C is presented based on FTIR spectra with an R2 of 0.98. He-pycnometry resolves the temperature range between 500 and 890 °C. Small angle X-ray scattering (SAXS) describes precisely the evolution of the porous structure and completes the set of techniques by a description of the physical properties of the charcoal. X-ray diffraction (XRD) reveals the crystallographic change of the lignocellulosic structure toward precursors of graphite. The formation of calcite out of CaO and CO2 becomes evident.
Thesagro: | Carvão; Método de Análise.
Thesaurus Nal: | Charcoal; Pyrolysis.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Solos (CNPS)
Exemplares: | CNPS - (20019-1) - UPC - AP - DD -  -  - 2018.00306 - DIS