Characterization of Pyrolytic Sugars in Bio-Oil Produced from Biomass Fast Pyrolysis
This study characterizes the pyrolytic sugars in three bio-oils (with a total sugar content range of 55.6–69.2 mg g–1 bio-oil) produced from biomass fast pyrolysis by high performance anion exchange chromatography with pulsed amperometric detection (HPAEC-PAD) and two-dimensional 1H–13C heteronuclea...
| Main Authors: | , , |
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| Format: | Journal Article |
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American Chemical Society
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/12062 |
| _version_ | 1848747973386698752 |
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| author | Yu, Yun Chua, Yee Wen Wu, Hongwei |
| author_facet | Yu, Yun Chua, Yee Wen Wu, Hongwei |
| author_sort | Yu, Yun |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study characterizes the pyrolytic sugars in three bio-oils (with a total sugar content range of 55.6–69.2 mg g–1 bio-oil) produced from biomass fast pyrolysis by high performance anion exchange chromatography with pulsed amperometric detection (HPAEC-PAD) and two-dimensional 1H–13C heteronuclear single-quantum correlation–nuclear magnetic resonance (HSQC-NMR). Depending on bio-oil sample, glucose (mainly derived from cellulose) contributes ~67–79 wt % of total pyrolytic sugars in the bio-oil, and the rest of the sugars are derived from hemicellulose. The majority (>96%) of pyrolytic sugars are present in the water-soluble fraction of bio-oil, mainly in the form of cellulose-derived anhydrosugars such as levoglucosan and cellobiosan. A small portion of hemicellulose-derived sugar structures are also found in the water-soluble fraction of bio-oil. Unlike six-carbon sugars (glucose, galactose, and mannose) which are mainly present as anhydrosugars (i.e., ~ 79–86% on a carbon basis for glucose), a large portion of five-carbon sugars (xylose and arabinose) in the water-soluble fraction of bio-oil are present as monomer sugars (i.e., ~ 24–39% on a carbon basis for arabinose and ~32–42% on a carbon basis for xylose). The results suggest that the formation of anhydrosugars from hemicellulose pyrolysis is difficult for five-carbon sugars and the hydrolysis of hemicellulose can be catalyzed by the organic acids produced during pyrolysis. A minor portion (<4%) of sugar structures also exists in the water-insoluble fraction of bio-oil, possibly formed via thermal ejection mechanism from hemicellulose components connected to lignin structures. |
| first_indexed | 2025-11-14T06:57:39Z |
| format | Journal Article |
| id | curtin-20.500.11937-12062 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:57:39Z |
| publishDate | 2016 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-120622019-12-02T05:37:44Z Characterization of Pyrolytic Sugars in Bio-Oil Produced from Biomass Fast Pyrolysis Yu, Yun Chua, Yee Wen Wu, Hongwei This study characterizes the pyrolytic sugars in three bio-oils (with a total sugar content range of 55.6–69.2 mg g–1 bio-oil) produced from biomass fast pyrolysis by high performance anion exchange chromatography with pulsed amperometric detection (HPAEC-PAD) and two-dimensional 1H–13C heteronuclear single-quantum correlation–nuclear magnetic resonance (HSQC-NMR). Depending on bio-oil sample, glucose (mainly derived from cellulose) contributes ~67–79 wt % of total pyrolytic sugars in the bio-oil, and the rest of the sugars are derived from hemicellulose. The majority (>96%) of pyrolytic sugars are present in the water-soluble fraction of bio-oil, mainly in the form of cellulose-derived anhydrosugars such as levoglucosan and cellobiosan. A small portion of hemicellulose-derived sugar structures are also found in the water-soluble fraction of bio-oil. Unlike six-carbon sugars (glucose, galactose, and mannose) which are mainly present as anhydrosugars (i.e., ~ 79–86% on a carbon basis for glucose), a large portion of five-carbon sugars (xylose and arabinose) in the water-soluble fraction of bio-oil are present as monomer sugars (i.e., ~ 24–39% on a carbon basis for arabinose and ~32–42% on a carbon basis for xylose). The results suggest that the formation of anhydrosugars from hemicellulose pyrolysis is difficult for five-carbon sugars and the hydrolysis of hemicellulose can be catalyzed by the organic acids produced during pyrolysis. A minor portion (<4%) of sugar structures also exists in the water-insoluble fraction of bio-oil, possibly formed via thermal ejection mechanism from hemicellulose components connected to lignin structures. 2016 Journal Article http://hdl.handle.net/20.500.11937/12062 10.1021/acs.energyfuels.6b00464 American Chemical Society restricted |
| spellingShingle | Yu, Yun Chua, Yee Wen Wu, Hongwei Characterization of Pyrolytic Sugars in Bio-Oil Produced from Biomass Fast Pyrolysis |
| title | Characterization of Pyrolytic Sugars in Bio-Oil Produced from Biomass Fast Pyrolysis |
| title_full | Characterization of Pyrolytic Sugars in Bio-Oil Produced from Biomass Fast Pyrolysis |
| title_fullStr | Characterization of Pyrolytic Sugars in Bio-Oil Produced from Biomass Fast Pyrolysis |
| title_full_unstemmed | Characterization of Pyrolytic Sugars in Bio-Oil Produced from Biomass Fast Pyrolysis |
| title_short | Characterization of Pyrolytic Sugars in Bio-Oil Produced from Biomass Fast Pyrolysis |
| title_sort | characterization of pyrolytic sugars in bio-oil produced from biomass fast pyrolysis |
| url | http://hdl.handle.net/20.500.11937/12062 |