Catalytic reforming of tar during gasification. Part IV. Changes in the structure of char in the char-supported iron catalyst during reforming
Our previous parts of this series have shown the char-supported iron catalysts to possess high activity for the reforming of tar during biomass gasification. This study aims to investigate the changes to the structure of char in the char-supported iron catalyst during the reforming of tar derived fr...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier Ltd
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/47139 |
| _version_ | 1848757751994384384 |
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| author | Min, Zhenhua Zhang, Shu Yimsiri, P. Wang, Yi Asadullah, Mohammad Li, Chun-Zhu |
| author_facet | Min, Zhenhua Zhang, Shu Yimsiri, P. Wang, Yi Asadullah, Mohammad Li, Chun-Zhu |
| author_sort | Min, Zhenhua |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Our previous parts of this series have shown the char-supported iron catalysts to possess high activity for the reforming of tar during biomass gasification. This study aims to investigate the changes to the structure of char in the char-supported iron catalyst during the reforming of tar derived from the pyrolysis of mallee wood biomass. The char structure was characterised with Raman spectroscopy and its intrinsic reactivity at 400 °C in a thermogravimetric analyser. The results showed that the Raman peak area in the range of 800–1800 cm-1 of the catalysts changed slightly after being used for the steam reforming of biomass tar. The changes in the Raman band area ratio of ID/I(Gr+Vl+Vr) indicated that the relative ratio of larger and smaller aromatic ring systems increased after reforming at temperatures at 800 °C or higher. The changes in the char-air reactivity before and after reforming provided further insights to the changes in char structure as well as the importance of alkali and alkaline earth metallic species deposited on the char-supported catalysts during reforming. |
| first_indexed | 2025-11-14T09:33:05Z |
| format | Journal Article |
| id | curtin-20.500.11937-47139 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:33:05Z |
| publishDate | 2013 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-471392017-09-13T14:27:26Z Catalytic reforming of tar during gasification. Part IV. Changes in the structure of char in the char-supported iron catalyst during reforming Min, Zhenhua Zhang, Shu Yimsiri, P. Wang, Yi Asadullah, Mohammad Li, Chun-Zhu Raman spectroscopy Char-supported iron catalyst Specific reactivity Steam reforming Our previous parts of this series have shown the char-supported iron catalysts to possess high activity for the reforming of tar during biomass gasification. This study aims to investigate the changes to the structure of char in the char-supported iron catalyst during the reforming of tar derived from the pyrolysis of mallee wood biomass. The char structure was characterised with Raman spectroscopy and its intrinsic reactivity at 400 °C in a thermogravimetric analyser. The results showed that the Raman peak area in the range of 800–1800 cm-1 of the catalysts changed slightly after being used for the steam reforming of biomass tar. The changes in the Raman band area ratio of ID/I(Gr+Vl+Vr) indicated that the relative ratio of larger and smaller aromatic ring systems increased after reforming at temperatures at 800 °C or higher. The changes in the char-air reactivity before and after reforming provided further insights to the changes in char structure as well as the importance of alkali and alkaline earth metallic species deposited on the char-supported catalysts during reforming. 2013 Journal Article http://hdl.handle.net/20.500.11937/47139 10.1016/j.fuel.2012.11.063 Elsevier Ltd restricted |
| spellingShingle | Raman spectroscopy Char-supported iron catalyst Specific reactivity Steam reforming Min, Zhenhua Zhang, Shu Yimsiri, P. Wang, Yi Asadullah, Mohammad Li, Chun-Zhu Catalytic reforming of tar during gasification. Part IV. Changes in the structure of char in the char-supported iron catalyst during reforming |
| title | Catalytic reforming of tar during gasification. Part IV. Changes in the structure of char in the char-supported iron catalyst during reforming |
| title_full | Catalytic reforming of tar during gasification. Part IV. Changes in the structure of char in the char-supported iron catalyst during reforming |
| title_fullStr | Catalytic reforming of tar during gasification. Part IV. Changes in the structure of char in the char-supported iron catalyst during reforming |
| title_full_unstemmed | Catalytic reforming of tar during gasification. Part IV. Changes in the structure of char in the char-supported iron catalyst during reforming |
| title_short | Catalytic reforming of tar during gasification. Part IV. Changes in the structure of char in the char-supported iron catalyst during reforming |
| title_sort | catalytic reforming of tar during gasification. part iv. changes in the structure of char in the char-supported iron catalyst during reforming |
| topic | Raman spectroscopy Char-supported iron catalyst Specific reactivity Steam reforming |
| url | http://hdl.handle.net/20.500.11937/47139 |