A Modified Model for Kinetic Analysis of Petroleum Coke
In this study, a nonisothermal kinetics analysis of petcoke was performed at heating rates of 10, 15, and 20°C/min using thermal gravimetric analysis (TGA). The behaviour of petcoke at different gasification stages (dewatering, volatilization, char burning, and burnout) was studied. The effect of he...
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| Format: | Article |
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Wiley
2019-01-01
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| Series: | International Journal of Chemical Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/2034983 |
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| author | Iman Eslami Afrooz Dennis Ling Chuan Ching |
| author_facet | Iman Eslami Afrooz Dennis Ling Chuan Ching |
| author_sort | Iman Eslami Afrooz |
| collection | DOAJ |
| description | In this study, a nonisothermal kinetics analysis of petcoke was performed at heating rates of 10, 15, and 20°C/min using thermal gravimetric analysis (TGA). The behaviour of petcoke at different gasification stages (dewatering, volatilization, char burning, and burnout) was studied. The effect of heating rate on the activation energy of petcoke gasification was also investigated. The activation energy of petcoke was estimated using different kinetic models that include volume reaction model (VRM), shrinking core model (SCM), random pore model (RPM), Coats and Redfern model (CRM), and normal distribution function (NDF). The NDF model was modified in this study. It was found that the experimental data were best fitted with the modified normal distribution function (MNDF) and SCM. The results also showed that activation energy decreases as heating rate increases, leading to reduction in gasification completion time. |
| format | Article |
| id | doaj-art-bbd940c3bef34ba98a1da5dc736876fe |
| institution | Kabale University |
| issn | 1687-806X 1687-8078 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Chemical Engineering |
| spelling | doaj-art-bbd940c3bef34ba98a1da5dc736876fe2025-02-03T01:00:31ZengWileyInternational Journal of Chemical Engineering1687-806X1687-80782019-01-01201910.1155/2019/20349832034983A Modified Model for Kinetic Analysis of Petroleum CokeIman Eslami Afrooz0Dennis Ling Chuan Ching1Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar 32610, MalaysiaDepartment of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar 32610, MalaysiaIn this study, a nonisothermal kinetics analysis of petcoke was performed at heating rates of 10, 15, and 20°C/min using thermal gravimetric analysis (TGA). The behaviour of petcoke at different gasification stages (dewatering, volatilization, char burning, and burnout) was studied. The effect of heating rate on the activation energy of petcoke gasification was also investigated. The activation energy of petcoke was estimated using different kinetic models that include volume reaction model (VRM), shrinking core model (SCM), random pore model (RPM), Coats and Redfern model (CRM), and normal distribution function (NDF). The NDF model was modified in this study. It was found that the experimental data were best fitted with the modified normal distribution function (MNDF) and SCM. The results also showed that activation energy decreases as heating rate increases, leading to reduction in gasification completion time.http://dx.doi.org/10.1155/2019/2034983 |
| spellingShingle | Iman Eslami Afrooz Dennis Ling Chuan Ching A Modified Model for Kinetic Analysis of Petroleum Coke International Journal of Chemical Engineering |
| title | A Modified Model for Kinetic Analysis of Petroleum Coke |
| title_full | A Modified Model for Kinetic Analysis of Petroleum Coke |
| title_fullStr | A Modified Model for Kinetic Analysis of Petroleum Coke |
| title_full_unstemmed | A Modified Model for Kinetic Analysis of Petroleum Coke |
| title_short | A Modified Model for Kinetic Analysis of Petroleum Coke |
| title_sort | modified model for kinetic analysis of petroleum coke |
| url | http://dx.doi.org/10.1155/2019/2034983 |
| work_keys_str_mv | AT imaneslamiafrooz amodifiedmodelforkineticanalysisofpetroleumcoke AT dennislingchuanching amodifiedmodelforkineticanalysisofpetroleumcoke AT imaneslamiafrooz modifiedmodelforkineticanalysisofpetroleumcoke AT dennislingchuanching modifiedmodelforkineticanalysisofpetroleumcoke |