A Combined Raman Spectroscopic and Thermogravimetric Analysis Study on Oxidation of Coal with Different Ranks
Raman spectroscopy and nonisothermal thermogravimetric analysis (TGA) measurements have been reported for different rank coals (lignite, bituminous coal, and anthracite) and the relationship between the measurements was examined. It was found that the Raman spectra parameters can be used to characte...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Analytical Methods in Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2015/306874 |
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| author | Weiqing Zhang Shuguang Jiang Christopher Hardacre Peter Goodrich Kai Wang Hao Shao Zhengyan Wu |
| author_facet | Weiqing Zhang Shuguang Jiang Christopher Hardacre Peter Goodrich Kai Wang Hao Shao Zhengyan Wu |
| author_sort | Weiqing Zhang |
| collection | DOAJ |
| description | Raman spectroscopy and nonisothermal thermogravimetric analysis (TGA) measurements have been reported for different rank coals (lignite, bituminous coal, and anthracite) and the relationship between the measurements was examined. It was found that the Raman spectra parameters can be used to characterize structure changes in the different rank coals, such as the band area ratios based on the curve-fitted results. Higher ranked coal was found to have higher values of IGR/IAll and IG+GR/IAll but lower values of ID/I(G+GR), IDL/I(G+GR), IS+SL/I(G+GR), and I(GL+GL')/I(G+GR). The oxidation properties of the coal samples were characterized by the reactivity indexes Tig, T20%, and Tmax from TGA data which were found to correlate well with the band area ratios of IGR/IAll, IG+GR/IAll, and IS+SL/I(G+GR). Based on these correlations, the Raman band area ratios were found to correlate with the oxidation activity of coal providing additional structural information which can be used to understand the changes in the TGA measurements. |
| format | Article |
| id | doaj-art-547ef9f1653e4b27848d466f1fd5222b |
| institution | Kabale University |
| issn | 2090-8865 2090-8873 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Analytical Methods in Chemistry |
| spelling | doaj-art-547ef9f1653e4b27848d466f1fd5222b2025-02-03T06:08:11ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732015-01-01201510.1155/2015/306874306874A Combined Raman Spectroscopic and Thermogravimetric Analysis Study on Oxidation of Coal with Different RanksWeiqing Zhang0Shuguang Jiang1Christopher Hardacre2Peter Goodrich3Kai Wang4Hao Shao5Zhengyan Wu6State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, ChinaState Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Chemistry and Chemical Engineering/QUILL, Queen’s University Belfast, Belfast BT9 5AG, UKSchool of Chemistry and Chemical Engineering/QUILL, Queen’s University Belfast, Belfast BT9 5AG, UKSchool of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaRaman spectroscopy and nonisothermal thermogravimetric analysis (TGA) measurements have been reported for different rank coals (lignite, bituminous coal, and anthracite) and the relationship between the measurements was examined. It was found that the Raman spectra parameters can be used to characterize structure changes in the different rank coals, such as the band area ratios based on the curve-fitted results. Higher ranked coal was found to have higher values of IGR/IAll and IG+GR/IAll but lower values of ID/I(G+GR), IDL/I(G+GR), IS+SL/I(G+GR), and I(GL+GL')/I(G+GR). The oxidation properties of the coal samples were characterized by the reactivity indexes Tig, T20%, and Tmax from TGA data which were found to correlate well with the band area ratios of IGR/IAll, IG+GR/IAll, and IS+SL/I(G+GR). Based on these correlations, the Raman band area ratios were found to correlate with the oxidation activity of coal providing additional structural information which can be used to understand the changes in the TGA measurements.http://dx.doi.org/10.1155/2015/306874 |
| spellingShingle | Weiqing Zhang Shuguang Jiang Christopher Hardacre Peter Goodrich Kai Wang Hao Shao Zhengyan Wu A Combined Raman Spectroscopic and Thermogravimetric Analysis Study on Oxidation of Coal with Different Ranks Journal of Analytical Methods in Chemistry |
| title | A Combined Raman Spectroscopic and Thermogravimetric Analysis Study on Oxidation of Coal with Different Ranks |
| title_full | A Combined Raman Spectroscopic and Thermogravimetric Analysis Study on Oxidation of Coal with Different Ranks |
| title_fullStr | A Combined Raman Spectroscopic and Thermogravimetric Analysis Study on Oxidation of Coal with Different Ranks |
| title_full_unstemmed | A Combined Raman Spectroscopic and Thermogravimetric Analysis Study on Oxidation of Coal with Different Ranks |
| title_short | A Combined Raman Spectroscopic and Thermogravimetric Analysis Study on Oxidation of Coal with Different Ranks |
| title_sort | combined raman spectroscopic and thermogravimetric analysis study on oxidation of coal with different ranks |
| url | http://dx.doi.org/10.1155/2015/306874 |
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