| Title | Optical and chemical characterization of solid residues obtained from vacuum pyrolysis of wood (aspen poplar) |
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| Author | Kalkreuth, W; Brouillard, D; Roy, C |
| Source | Biomass vol. 10, 1986 p. 27-45, https://doi.org/10.1016/0144-4565(86)90034-x |
| Year | 1986 |
| Alt Series | Geological Survey of Canada, Contribution Series 35286 |
| Publisher | Elsevier BV |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Subjects | fossil fuels; geochemistry; pyrolysis; organic materials; petrographic analyses; reflectance; vitrinite reflectance |
| Illustrations | photographs |
| Released | 1986 01 01 |
| Abstract | Laboratory scale vacuum pyrolysis experiments on the thermal conversion of wood (aspen poplar) are reported. The conversion of wood into gaseous and liquid products was found to be almost complete at
400°C where the pyrolytic oil yield was 62% by weight, with 83% of wood being converted. The major pyrolytic reaction zone was between 225 and 300°C. Solid residues obtained from these experiments were characterized by methods of incident light
microscopy and elemental analysis. The wood was transformed into vitrinite-like substances which resemble morphologically cell-tissues commonly encountered in the petrographic analysis of peats and coals. Fluorescence and reflectance measurements
obtained from the residual materials indicate severe alterations within the organic material leading at elevated temperatures to reflectance values which correspond to the semi-anthracite rank level of coals. The increase of reflectance as reaction
temperature increases correlates well with increasing carbon content and a decrease in the H/C-O/C-atomic ratios of the residual materials. There was a good correlation between calorific values determined on the residues and optimal parameters such
as lamda max, Q and random reflectance. Results suggest that vacuum pyrolysis has potential as a method for production of liquid products from biomass. |
| GEOSCAN ID | 120080 |
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