Changes in char structure due to inorganic matters during anthracite pyrolysis
© 2017 Elsevier B.V. To understand effects of inherent mineral matters on the evolution of char structure, the microcrystalline structures of chars from the pyrolysis of raw, HCl-washed (CW) and HCl & HF-washed anthracites (CFW) were investigated by X-ray diffraction (XRD) respectively. Stacking...
| Main Authors: | , |
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| Format: | Journal Article |
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Elsevier
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/58494 |
| _version_ | 1848760274145771520 |
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| author | Gong, X. Zhang, Shu |
| author_facet | Gong, X. Zhang, Shu |
| author_sort | Gong, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2017 Elsevier B.V. To understand effects of inherent mineral matters on the evolution of char structure, the microcrystalline structures of chars from the pyrolysis of raw, HCl-washed (CW) and HCl & HF-washed anthracites (CFW) were investigated by X-ray diffraction (XRD) respectively. Stacking height (Lc), interlayer spacing (d 002 ) and crystallite width (La) were used as parameters for char structure estimation. The results showed that with increasing contents of inherent mineral matters, Lc of char decreased, whereas d 002 and La increased. To study effects of a single inorganic matter, CFW was impregnated with Al 2 O 3 , SiO 2 , and CaO respectively. It was found that all of them (oxides) have resulted in the decrease in Lc and increase in La and d 002 . Differing from Al 2 O 3 , SiO 2 , and CaO, the introduction of Fe 2 O 3 has caused the reduction for both La and Lc values simultaneously, especially when the Fe 2 O 3 contents in the coal were high. |
| first_indexed | 2025-11-14T10:13:10Z |
| format | Journal Article |
| id | curtin-20.500.11937-58494 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:13:10Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-584942017-11-24T05:45:54Z Changes in char structure due to inorganic matters during anthracite pyrolysis Gong, X. Zhang, Shu © 2017 Elsevier B.V. To understand effects of inherent mineral matters on the evolution of char structure, the microcrystalline structures of chars from the pyrolysis of raw, HCl-washed (CW) and HCl & HF-washed anthracites (CFW) were investigated by X-ray diffraction (XRD) respectively. Stacking height (Lc), interlayer spacing (d 002 ) and crystallite width (La) were used as parameters for char structure estimation. The results showed that with increasing contents of inherent mineral matters, Lc of char decreased, whereas d 002 and La increased. To study effects of a single inorganic matter, CFW was impregnated with Al 2 O 3 , SiO 2 , and CaO respectively. It was found that all of them (oxides) have resulted in the decrease in Lc and increase in La and d 002 . Differing from Al 2 O 3 , SiO 2 , and CaO, the introduction of Fe 2 O 3 has caused the reduction for both La and Lc values simultaneously, especially when the Fe 2 O 3 contents in the coal were high. 2017 Journal Article http://hdl.handle.net/20.500.11937/58494 10.1016/j.jaap.2017.08.011 Elsevier restricted |
| spellingShingle | Gong, X. Zhang, Shu Changes in char structure due to inorganic matters during anthracite pyrolysis |
| title | Changes in char structure due to inorganic matters during anthracite pyrolysis |
| title_full | Changes in char structure due to inorganic matters during anthracite pyrolysis |
| title_fullStr | Changes in char structure due to inorganic matters during anthracite pyrolysis |
| title_full_unstemmed | Changes in char structure due to inorganic matters during anthracite pyrolysis |
| title_short | Changes in char structure due to inorganic matters during anthracite pyrolysis |
| title_sort | changes in char structure due to inorganic matters during anthracite pyrolysis |
| url | http://hdl.handle.net/20.500.11937/58494 |