A Thermal Study on Peat Oxidation Behavior in the Presence of an Iron-Based Catalyst
Peat is a resource used for heat and energy, particularly in countries where peat is abundant and conventional fuels are not available. Some countries have made extensive use of peat resources to produce electricity and heat in addition to light hydrocarbons. By doing so, they were able to reduce th...
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MDPI AG
2021-11-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/11/11/1344 |
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| author | Mohammed A. Khelkhal Semen E. Lapuk Nikita E. Ignashev Alexey A. Eskin Mikhail Yu. Glyavin Nikolay Yu. Peskov Tatiana O. Krapivnitskaia Alexey V. Vakhin |
| author_facet | Mohammed A. Khelkhal Semen E. Lapuk Nikita E. Ignashev Alexey A. Eskin Mikhail Yu. Glyavin Nikolay Yu. Peskov Tatiana O. Krapivnitskaia Alexey V. Vakhin |
| author_sort | Mohammed A. Khelkhal |
| collection | DOAJ |
| description | Peat is a resource used for heat and energy, particularly in countries where peat is abundant and conventional fuels are not available. Some countries have made extensive use of peat resources to produce electricity and heat in addition to light hydrocarbons. By doing so, they were able to reduce the cost of importing fossil fuels. To the best of our knowledge, there is a lack of a detailed description of the peat oxidation process in the presence of other substances. Herein, the process of peat oxidation was studied in-depth by means of thermal analysis in the presence of iron tallate acting as a catalytic agent. Differential scanning calorimetry and thermogravimetric analysis demonstrated an oil-like oxidation behavior during the combustion of the used peat. The process of peat oxidation includes two main regions: low-temperature oxidation (LTO), which occurs during the oxidation of light hydrocarbons, followed by the so-called high-temperature oxidation (HTO), which includes the oxidation of the obtained coke-like product. Moreover, the application of non-isothermal kinetics experiments based on the isoconversional and model approach principle have confirmed the role of 2% iron tallate in peat mass by improving the oxidation rate at low- and high-temperature oxidation (HTO) regions. The results obtained from this study have proven that the added catalyst improves efficiency with regards to the energy activation in the process by leading to its significant decrease from 110.8 ± 7.8 kJ/mol to 81.8 ± 7.5 kJ/mol for LTO and from 157.8 ± 19.1 kJ/mol to 137.6 ± 9.3 kJ/mol for HTO. These findings clearly confirm the improvement in the rate of the process by shifting the LTO and HTO peaks to lower regions in the presence of the catalyst. These results further emphasize the possible impact which could be generated by the application of thermally enhanced oil recovery methods on peat development and exploitation. |
| first_indexed | 2024-03-10T05:38:54Z |
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| id | doaj.art-ff9e436ff16940bcb8e9db2dd854976e |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T05:38:54Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
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| series | Catalysts |
| spelling | doaj.art-ff9e436ff16940bcb8e9db2dd854976e2023-11-22T22:45:48ZengMDPI AGCatalysts2073-43442021-11-011111134410.3390/catal11111344A Thermal Study on Peat Oxidation Behavior in the Presence of an Iron-Based CatalystMohammed A. Khelkhal0Semen E. Lapuk1Nikita E. Ignashev2Alexey A. Eskin3Mikhail Yu. Glyavin4Nikolay Yu. Peskov5Tatiana O. Krapivnitskaia6Alexey V. Vakhin7Department of Petroleum Engineering, Kazan Federal University, Kremlevskaya str. 18, 420008 Kazan, RussiaDepartment of Petroleum Engineering, Kazan Federal University, Kremlevskaya str. 18, 420008 Kazan, RussiaDepartment of Petroleum Engineering, Kazan Federal University, Kremlevskaya str. 18, 420008 Kazan, RussiaDepartment of Petroleum Engineering, Kazan Federal University, Kremlevskaya str. 18, 420008 Kazan, RussiaInstitute of Applied Physics, Russian Academy of Sciences, 46 Ulyanova st., 603950 Nizhniy Novgorod, RussiaInstitute of Applied Physics, Russian Academy of Sciences, 46 Ulyanova st., 603950 Nizhniy Novgorod, RussiaInstitute of Applied Physics, Russian Academy of Sciences, 46 Ulyanova st., 603950 Nizhniy Novgorod, RussiaDepartment of Petroleum Engineering, Kazan Federal University, Kremlevskaya str. 18, 420008 Kazan, RussiaPeat is a resource used for heat and energy, particularly in countries where peat is abundant and conventional fuels are not available. Some countries have made extensive use of peat resources to produce electricity and heat in addition to light hydrocarbons. By doing so, they were able to reduce the cost of importing fossil fuels. To the best of our knowledge, there is a lack of a detailed description of the peat oxidation process in the presence of other substances. Herein, the process of peat oxidation was studied in-depth by means of thermal analysis in the presence of iron tallate acting as a catalytic agent. Differential scanning calorimetry and thermogravimetric analysis demonstrated an oil-like oxidation behavior during the combustion of the used peat. The process of peat oxidation includes two main regions: low-temperature oxidation (LTO), which occurs during the oxidation of light hydrocarbons, followed by the so-called high-temperature oxidation (HTO), which includes the oxidation of the obtained coke-like product. Moreover, the application of non-isothermal kinetics experiments based on the isoconversional and model approach principle have confirmed the role of 2% iron tallate in peat mass by improving the oxidation rate at low- and high-temperature oxidation (HTO) regions. The results obtained from this study have proven that the added catalyst improves efficiency with regards to the energy activation in the process by leading to its significant decrease from 110.8 ± 7.8 kJ/mol to 81.8 ± 7.5 kJ/mol for LTO and from 157.8 ± 19.1 kJ/mol to 137.6 ± 9.3 kJ/mol for HTO. These findings clearly confirm the improvement in the rate of the process by shifting the LTO and HTO peaks to lower regions in the presence of the catalyst. These results further emphasize the possible impact which could be generated by the application of thermally enhanced oil recovery methods on peat development and exploitation.https://www.mdpi.com/2073-4344/11/11/1344unconventional resourcespeatoxidationthermal analysiscatalystsiron oxide nanoparticles |
| spellingShingle | Mohammed A. Khelkhal Semen E. Lapuk Nikita E. Ignashev Alexey A. Eskin Mikhail Yu. Glyavin Nikolay Yu. Peskov Tatiana O. Krapivnitskaia Alexey V. Vakhin A Thermal Study on Peat Oxidation Behavior in the Presence of an Iron-Based Catalyst Catalysts unconventional resources peat oxidation thermal analysis catalysts iron oxide nanoparticles |
| title | A Thermal Study on Peat Oxidation Behavior in the Presence of an Iron-Based Catalyst |
| title_full | A Thermal Study on Peat Oxidation Behavior in the Presence of an Iron-Based Catalyst |
| title_fullStr | A Thermal Study on Peat Oxidation Behavior in the Presence of an Iron-Based Catalyst |
| title_full_unstemmed | A Thermal Study on Peat Oxidation Behavior in the Presence of an Iron-Based Catalyst |
| title_short | A Thermal Study on Peat Oxidation Behavior in the Presence of an Iron-Based Catalyst |
| title_sort | thermal study on peat oxidation behavior in the presence of an iron based catalyst |
| topic | unconventional resources peat oxidation thermal analysis catalysts iron oxide nanoparticles |
| url | https://www.mdpi.com/2073-4344/11/11/1344 |
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