Formation of Aromatic Structures during the Pyrolysis of Bio-oil
The pyrolysis of biomass to produce bio-oil is a very effective way of biomass use. Bio-oil undergoes drastic structural changes as it is upgraded into biofuels or used as a fuel for gasification/combustion. The evolution of aromatic ring systems in bio-oil is a key consideration in bio-oil use. A b...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
American Chemical Society
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/14020 |
| _version_ | 1848748507974860800 |
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| author | Wang, Yi Li, X. Mourant, Daniel Gunawan, Richard Zhang, Shu Li, Chun-Zhu |
| author_facet | Wang, Yi Li, X. Mourant, Daniel Gunawan, Richard Zhang, Shu Li, Chun-Zhu |
| author_sort | Wang, Yi |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The pyrolysis of biomass to produce bio-oil is a very effective way of biomass use. Bio-oil undergoes drastic structural changes as it is upgraded into biofuels or used as a fuel for gasification/combustion. The evolution of aromatic ring systems in bio-oil is a key consideration in bio-oil use. A bio-oil sample produced from the fast pyrolysis of mallee wood at 500 °C, its lignin-derived oligomers, and pure cellulose have been pyrolyzed in a novel two-stage fluidized-bed/fixed-bed reactor at temperatures between 350 and 850 °C. The product tars were characterized with ultraviolet (UV) fluorescence spectroscopy. Our results indicate that significant portions of aromatic ring systems in the bio-oil could turn/polymerize into solids not soluble in CHCl3 + CH3OH during the pyrolysis at relatively low temperatures, e.g., 350–400 °C. This process can be enhanced by the presence of cellulose-/hemicellulose-derived species in the bio-oil, which are reactive and produce radicals to enhance the polymerization reactions. The pyrolysis of cellulose-derived species in the bio-oil tended to form additional very large aromatic ring systems at temperatures higher than 700 °C. |
| first_indexed | 2025-11-14T07:06:09Z |
| format | Journal Article |
| id | curtin-20.500.11937-14020 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:06:09Z |
| publishDate | 2012 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-140202017-09-13T14:04:52Z Formation of Aromatic Structures during the Pyrolysis of Bio-oil Wang, Yi Li, X. Mourant, Daniel Gunawan, Richard Zhang, Shu Li, Chun-Zhu The pyrolysis of biomass to produce bio-oil is a very effective way of biomass use. Bio-oil undergoes drastic structural changes as it is upgraded into biofuels or used as a fuel for gasification/combustion. The evolution of aromatic ring systems in bio-oil is a key consideration in bio-oil use. A bio-oil sample produced from the fast pyrolysis of mallee wood at 500 °C, its lignin-derived oligomers, and pure cellulose have been pyrolyzed in a novel two-stage fluidized-bed/fixed-bed reactor at temperatures between 350 and 850 °C. The product tars were characterized with ultraviolet (UV) fluorescence spectroscopy. Our results indicate that significant portions of aromatic ring systems in the bio-oil could turn/polymerize into solids not soluble in CHCl3 + CH3OH during the pyrolysis at relatively low temperatures, e.g., 350–400 °C. This process can be enhanced by the presence of cellulose-/hemicellulose-derived species in the bio-oil, which are reactive and produce radicals to enhance the polymerization reactions. The pyrolysis of cellulose-derived species in the bio-oil tended to form additional very large aromatic ring systems at temperatures higher than 700 °C. 2012 Journal Article http://hdl.handle.net/20.500.11937/14020 10.1021/ef201155e American Chemical Society restricted |
| spellingShingle | Wang, Yi Li, X. Mourant, Daniel Gunawan, Richard Zhang, Shu Li, Chun-Zhu Formation of Aromatic Structures during the Pyrolysis of Bio-oil |
| title | Formation of Aromatic Structures during the Pyrolysis of Bio-oil |
| title_full | Formation of Aromatic Structures during the Pyrolysis of Bio-oil |
| title_fullStr | Formation of Aromatic Structures during the Pyrolysis of Bio-oil |
| title_full_unstemmed | Formation of Aromatic Structures during the Pyrolysis of Bio-oil |
| title_short | Formation of Aromatic Structures during the Pyrolysis of Bio-oil |
| title_sort | formation of aromatic structures during the pyrolysis of bio-oil |
| url | http://hdl.handle.net/20.500.11937/14020 |