Destruction of tar during volatile-char interactions at low temperature
This study aims to investigate the mechanisms of tar destruction during volatile-char interactions at low temperature (400–700 °C). A bio-char was subjected to interactions with biomass volatiles at different temperatures (400–700 °C). The results indicate that tar is converted into gaseous and soli...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/59453 |
| _version_ | 1848760484438736896 |
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| author | Song, Yao Zhao, Y. Hu, X. Zhang, Lei Sun, S. Li, C. |
| author_facet | Song, Yao Zhao, Y. Hu, X. Zhang, Lei Sun, S. Li, C. |
| author_sort | Song, Yao |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study aims to investigate the mechanisms of tar destruction during volatile-char interactions at low temperature (400–700 °C). A bio-char was subjected to interactions with biomass volatiles at different temperatures (400–700 °C). The results indicate that tar is converted into gaseous and solid products (coke) during volatile-char interactions and the proportion of coke formed on the bio-char from the total converted tar steadily increases with increasing temperature. The non-aromatic structures (e.g. aliphatic and/or O-containing structures) in tar are mainly converted into gases by catalytic cracking and/or reforming reactions on char, while the aromatic structures in tar primarily go through condensation/polymerisation reactions to form coke on char surface. The UV-fluorescence spectroscopic results imply that the non-aromatic structures in tar are easier converted on char than aromatic structures at low temperature (e.g. 400–500 °C) and the conversion of aromatic stru ctures through coke formation on char will be enhanced at higher temperature (e.g. 600–700 °C). The Raman spectroscopic results show that some O-containing species in tar molecules are transferred to the char and form additional O-containing structures into the entire char matrix during the volatile-char interactions. |
| first_indexed | 2025-11-14T10:16:31Z |
| format | Journal Article |
| id | curtin-20.500.11937-59453 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:16:31Z |
| publishDate | 2018 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-594532018-03-05T04:57:38Z Destruction of tar during volatile-char interactions at low temperature Song, Yao Zhao, Y. Hu, X. Zhang, Lei Sun, S. Li, C. This study aims to investigate the mechanisms of tar destruction during volatile-char interactions at low temperature (400–700 °C). A bio-char was subjected to interactions with biomass volatiles at different temperatures (400–700 °C). The results indicate that tar is converted into gaseous and solid products (coke) during volatile-char interactions and the proportion of coke formed on the bio-char from the total converted tar steadily increases with increasing temperature. The non-aromatic structures (e.g. aliphatic and/or O-containing structures) in tar are mainly converted into gases by catalytic cracking and/or reforming reactions on char, while the aromatic structures in tar primarily go through condensation/polymerisation reactions to form coke on char surface. The UV-fluorescence spectroscopic results imply that the non-aromatic structures in tar are easier converted on char than aromatic structures at low temperature (e.g. 400–500 °C) and the conversion of aromatic stru ctures through coke formation on char will be enhanced at higher temperature (e.g. 600–700 °C). The Raman spectroscopic results show that some O-containing species in tar molecules are transferred to the char and form additional O-containing structures into the entire char matrix during the volatile-char interactions. 2018 Journal Article http://hdl.handle.net/20.500.11937/59453 10.1016/j.fuproc.2017.11.023 Elsevier restricted |
| spellingShingle | Song, Yao Zhao, Y. Hu, X. Zhang, Lei Sun, S. Li, C. Destruction of tar during volatile-char interactions at low temperature |
| title | Destruction of tar during volatile-char interactions at low temperature |
| title_full | Destruction of tar during volatile-char interactions at low temperature |
| title_fullStr | Destruction of tar during volatile-char interactions at low temperature |
| title_full_unstemmed | Destruction of tar during volatile-char interactions at low temperature |
| title_short | Destruction of tar during volatile-char interactions at low temperature |
| title_sort | destruction of tar during volatile-char interactions at low temperature |
| url | http://hdl.handle.net/20.500.11937/59453 |