| Titre : | Microwave pyrolysis of wood pellets (2010) |
| Auteurs : | Robinson, J. P., Auteur ; Kingman, S. W., Auteur ; Barranco, R., Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 49 N° 2, Janvier 2010) |
| Article en page(s) : | pp 459–463 |
| Note générale : | Chimie industrielle |
| Langues : | Anglais |
| Tags : | Pyrolysis Wood Microwave pyrolysis. |
| Résumé : | The pyrolysis of wood pellets was investigated using a single-mode microwave cavity, and the dielectric properties of the wood were measured at temperatures up to 750 °C. Below 600 °C, the only microwave-absorbing phase within wood is water. This study has shown categorically that microwave pyrolysis can be achieved without the use of carbon-rich dopants and that the heating of water alone can be used to induce pyrolysis of wood. A number of potential mechanisms are discussed that relate to the power density within the heated material. The yield of bio-oil and biogas is a function of the heating rate and power density, and for the samples used in this study, a threshold power density of 5.0 × 108 W/m3 was found, below which microwave pyrolysis did not occur. The results and hypotheses presented in this article represent the first steps in understanding the fundamental mechanisms of microwave pyrolysis. |
| DEWEY : | 660 |
| ISSN : | 0888-5858 |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie901336k |
