Journal
BIORESOURCE TECHNOLOGY
Volume 102, Issue 3, Pages 3466-3470Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2010.10.129
Keywords
Pyrolysis; Pyrolytic-oil; Bio-oil; Char; Miscanthus
Funding
- Science Foundation Ireland [06/CP/E007]
- Geof 833 and Enterprise Ireland under Competence Centre for Biorefining and Bioenergy [CC/2009/1305C]
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Miscanthus x giganteus was pyrolysed, in a fixed bed reactor in a constant flow of dinitrogen gas, at a rate of 13 degrees C/min from ambient to 550 degrees C, then held for 25 min at this temperature. The pressures employed ranged from atmospheric to 26 bar. The major compounds identified in the bio-oil were water, phenol, and phenol derivatives. The water contents impact on the usefulness of the bio-oil as a fuel. However, the phenols could provide useful platform chemicals and products. The properties of the char were determined using elemental analyses, surface area measurements using the Brunauer-Emmett-Teller equation, a calorimetric bomb, Scanning Electron Microscopy, and solid state C-13 NMR spectroscopy. The chars were highly carbonised, especially at the higher pressures, and provided thermally stable materials. Pressure impacted greatly on the surface area. Char formed at atmospheric pressure had a surface area of 162 m(2)/g, whereas that from the highest pressure applied was only 0.137 m(2)/g. (C) 2010 Elsevier Ltd. All rights reserved.
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