Kinetic Analysis of Low-Rank Coal Pyrolysis by Model-Free and Model-Fitting Methods
Coal SJC, coal WJG, coal ZJM, and coal HCG were selected to investigate the pyrolysis kinetics of northern Shaanxi coals. TG and DSC experiments of four coals were carried out with a synchronous thermal analyzer at heating rates 5, 10, 15, and 20 C/min, respectively. The pyrolysis characteristics we...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2019/9075862 |
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| author | Qiuli Zhang Min Luo Long Yan Aiwu Yang Xiangrong Hui |
| author_facet | Qiuli Zhang Min Luo Long Yan Aiwu Yang Xiangrong Hui |
| author_sort | Qiuli Zhang |
| collection | DOAJ |
| description | Coal SJC, coal WJG, coal ZJM, and coal HCG were selected to investigate the pyrolysis kinetics of northern Shaanxi coals. TG and DSC experiments of four coals were carried out with a synchronous thermal analyzer at heating rates 5, 10, 15, and 20 C/min, respectively. The pyrolysis characteristics were described by thermogravimetric data, and the kinetic parameters were calculated by Flynn–Wall–Ozawa (FWO), Kissinger, general integration, and MacCallum–Tanner methods. The results show that coal SJC, coal ZJM, and coal HCG all conform to the reaction series equation, the thermal decomposition reaction rate is controlled by chemical reaction, and coal WJG conforms to Avrami–Erofeev equation. The activation energies of the four coals are 177.53 kJ/mol, 200.34 kJ/mol, 158.59 kJ/mol, and 240.47 kJ/mol, respectively. |
| format | Article |
| id | doaj-art-5ea64759b5dd46c887d90cdb0e2814fb |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-5ea64759b5dd46c887d90cdb0e2814fb2025-02-03T01:33:29ZengWileyJournal of Chemistry2090-90632090-90712019-01-01201910.1155/2019/90758629075862Kinetic Analysis of Low-Rank Coal Pyrolysis by Model-Free and Model-Fitting MethodsQiuli Zhang0Min Luo1Long Yan2Aiwu Yang3Xiangrong Hui4School of Chemistry and Chemical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Chemistry and Chemical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, ChinaXi’an Boyan Instrument Analysis and Application Technology Co.Ltd., Xi’an 710016, ChinaSchool of Chemistry and Chemical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaCoal SJC, coal WJG, coal ZJM, and coal HCG were selected to investigate the pyrolysis kinetics of northern Shaanxi coals. TG and DSC experiments of four coals were carried out with a synchronous thermal analyzer at heating rates 5, 10, 15, and 20 C/min, respectively. The pyrolysis characteristics were described by thermogravimetric data, and the kinetic parameters were calculated by Flynn–Wall–Ozawa (FWO), Kissinger, general integration, and MacCallum–Tanner methods. The results show that coal SJC, coal ZJM, and coal HCG all conform to the reaction series equation, the thermal decomposition reaction rate is controlled by chemical reaction, and coal WJG conforms to Avrami–Erofeev equation. The activation energies of the four coals are 177.53 kJ/mol, 200.34 kJ/mol, 158.59 kJ/mol, and 240.47 kJ/mol, respectively.http://dx.doi.org/10.1155/2019/9075862 |
| spellingShingle | Qiuli Zhang Min Luo Long Yan Aiwu Yang Xiangrong Hui Kinetic Analysis of Low-Rank Coal Pyrolysis by Model-Free and Model-Fitting Methods Journal of Chemistry |
| title | Kinetic Analysis of Low-Rank Coal Pyrolysis by Model-Free and Model-Fitting Methods |
| title_full | Kinetic Analysis of Low-Rank Coal Pyrolysis by Model-Free and Model-Fitting Methods |
| title_fullStr | Kinetic Analysis of Low-Rank Coal Pyrolysis by Model-Free and Model-Fitting Methods |
| title_full_unstemmed | Kinetic Analysis of Low-Rank Coal Pyrolysis by Model-Free and Model-Fitting Methods |
| title_short | Kinetic Analysis of Low-Rank Coal Pyrolysis by Model-Free and Model-Fitting Methods |
| title_sort | kinetic analysis of low rank coal pyrolysis by model free and model fitting methods |
| url | http://dx.doi.org/10.1155/2019/9075862 |
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