Study of the Pyrolysis of Ayous and Kambala Co-Products: Kinetic Modeling of the Two Species
A kinetic model based on the two-stage semi-global multi-reaction model of Grioui was developed using the TG and DTG curves for the by-products of Kambala and Ayous. These two tropical species are widely used in the Republic of Congo. The TG and DTG curves were obtained through thermogravimetry at f...
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2024-11-01
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| author | Mamoun Clévie Aboni Akodzi Pierre Girods Timoléon Andzi-Barhé Yann Rogaume |
| author_facet | Mamoun Clévie Aboni Akodzi Pierre Girods Timoléon Andzi-Barhé Yann Rogaume |
| author_sort | Mamoun Clévie Aboni Akodzi |
| collection | DOAJ |
| description | A kinetic model based on the two-stage semi-global multi-reaction model of Grioui was developed using the TG and DTG curves for the by-products of Kambala and Ayous. These two tropical species are widely used in the Republic of Congo. The TG and DTG curves were obtained through thermogravimetry at five different heating rates (3, 7, 10, and 20 K/min) up to a final temperature of 800 °C under a nitrogen atmosphere. The thermal decomposition of both species started at similar temperatures, but the profiles exhibited notable differences. Kambala showed a distinct profile with two peaks at approximately 500 °C and 700 °C, which upon further investigation were found to correspond to ash decomposition. Additionally, the shoulder present in Ayous between 250 °C and 300 °C, attributed to hemicelluloses degradation, was absent in the DTG curves for Kambala. The kinetic model for Ayous was formulated in three steps, while the model for Kambala consisted of four steps. Both models accurately predicted the thermal degradation of the wood species, and the resulting kinetic parameters aligned with those reported in the literature. |
| format | Article |
| id | doaj-art-ecff8da22bec429ca527d7568cb4445c |
| institution | DOAJ |
| issn | 2673-7264 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Thermo |
| spelling | doaj-art-ecff8da22bec429ca527d7568cb4445c2025-08-20T02:43:41ZengMDPI AGThermo2673-72642024-11-014449050710.3390/thermo4040027Study of the Pyrolysis of Ayous and Kambala Co-Products: Kinetic Modeling of the Two SpeciesMamoun Clévie Aboni Akodzi0Pierre Girods1Timoléon Andzi-Barhé2Yann Rogaume3Université de Lorraine, INRAE, LERMAB, ERBE, F-88000 Epinal, FranceUniversité de Lorraine, INRAE, LERMAB, ERBE, F-88000 Epinal, FranceLe Laboratoire de Recherche en Chimie Appliquée, Université Marien NGOUABI, Brazzaville 99324, CongoUniversité de Lorraine, INRAE, LERMAB, ERBE, F-88000 Epinal, FranceA kinetic model based on the two-stage semi-global multi-reaction model of Grioui was developed using the TG and DTG curves for the by-products of Kambala and Ayous. These two tropical species are widely used in the Republic of Congo. The TG and DTG curves were obtained through thermogravimetry at five different heating rates (3, 7, 10, and 20 K/min) up to a final temperature of 800 °C under a nitrogen atmosphere. The thermal decomposition of both species started at similar temperatures, but the profiles exhibited notable differences. Kambala showed a distinct profile with two peaks at approximately 500 °C and 700 °C, which upon further investigation were found to correspond to ash decomposition. Additionally, the shoulder present in Ayous between 250 °C and 300 °C, attributed to hemicelluloses degradation, was absent in the DTG curves for Kambala. The kinetic model for Ayous was formulated in three steps, while the model for Kambala consisted of four steps. Both models accurately predicted the thermal degradation of the wood species, and the resulting kinetic parameters aligned with those reported in the literature.https://www.mdpi.com/2673-7264/4/4/27co-productsCongolese woodashmodelingkinetic parameters |
| spellingShingle | Mamoun Clévie Aboni Akodzi Pierre Girods Timoléon Andzi-Barhé Yann Rogaume Study of the Pyrolysis of Ayous and Kambala Co-Products: Kinetic Modeling of the Two Species Thermo co-products Congolese wood ash modeling kinetic parameters |
| title | Study of the Pyrolysis of Ayous and Kambala Co-Products: Kinetic Modeling of the Two Species |
| title_full | Study of the Pyrolysis of Ayous and Kambala Co-Products: Kinetic Modeling of the Two Species |
| title_fullStr | Study of the Pyrolysis of Ayous and Kambala Co-Products: Kinetic Modeling of the Two Species |
| title_full_unstemmed | Study of the Pyrolysis of Ayous and Kambala Co-Products: Kinetic Modeling of the Two Species |
| title_short | Study of the Pyrolysis of Ayous and Kambala Co-Products: Kinetic Modeling of the Two Species |
| title_sort | study of the pyrolysis of ayous and kambala co products kinetic modeling of the two species |
| topic | co-products Congolese wood ash modeling kinetic parameters |
| url | https://www.mdpi.com/2673-7264/4/4/27 |
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