Kinetics of Thermal Degradation of Cellulose: Analysis Based on Isothermal and Linear Heating Data
In spite of the many studies performed, there is not yet a kinetic model to predict the thermal degradation of cellulose in isothermal and non-isothermal conditions for the full extent of conversion. A model proposed by the authors was tested on non-oxidising thermogravimetric data. The method consi...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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North Carolina State University
2016-05-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_3_5870_Lopez_Beceiro_Kinetics_Thermal_Degradation_Cellulose |
| _version_ | 1818995055762866176 |
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| author | Jorge López-Beceiro Ana Álvarez-García Teresa Sebio-Puñal Sonia Zaragoza-Fernández Begoña Álvarez-García Ana Díaz-Díaz Julia Janeiro Ramón Artiaga |
| author_facet | Jorge López-Beceiro Ana Álvarez-García Teresa Sebio-Puñal Sonia Zaragoza-Fernández Begoña Álvarez-García Ana Díaz-Díaz Julia Janeiro Ramón Artiaga |
| author_sort | Jorge López-Beceiro |
| collection | DOAJ |
| description | In spite of the many studies performed, there is not yet a kinetic model to predict the thermal degradation of cellulose in isothermal and non-isothermal conditions for the full extent of conversion. A model proposed by the authors was tested on non-oxidising thermogravimetric data. The method consisted of initially fitting several isothermal and non-isothermal curves, then obtaining a critical temperature and an energy barrier from the set of fittings that resulted from different experimental conditions. While the critical temperature, approximately 226 °C, represented the minimum temperature for the degradation process, the degradation rate at a given temperature was related to both the critical temperature and the energy barrier. These results were compared with those observed in other materials. The quality of fittings obtained was superior to any other reported to date, and the results obtained from each single curve were in line with each other. |
| first_indexed | 2024-12-20T21:07:46Z |
| format | Article |
| id | doaj.art-3e6e284dc1fe4185a35940c4fefad72a |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-12-20T21:07:46Z |
| publishDate | 2016-05-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-3e6e284dc1fe4185a35940c4fefad72a2022-12-21T19:26:34ZengNorth Carolina State UniversityBioResources1930-21261930-21262016-05-011135870588810.15376/biores.11.3.5870-5888Kinetics of Thermal Degradation of Cellulose: Analysis Based on Isothermal and Linear Heating DataJorge López-Beceiro0Ana Álvarez-García1Teresa Sebio-Puñal2Sonia Zaragoza-Fernández3Begoña Álvarez-García4Ana Díaz-Díaz5Julia Janeiro6Ramón Artiaga7Escola Politécnica Superior, Avda. Mendizábal s/n. 15403-Ferrol, Spain; SpainEscola Politécnica Superior, Avda. Mendizábal s/n. 15403-Ferrol, Spain; SpainEscola Politécnica Superior, Avda. Mendizábal s/n. 15403-Ferrol, Spain; SpainEscola Politécnica Superior, Avda. Mendizábal s/n. 15403-Ferrol, Spain; SpainEscola Politécnica Superior, Avda. Mendizábal s/n. 15403-Ferrol, Spain; SpainEscola Politécnica Superior, Avda. Mendizábal s/n. 15403-Ferrol, Spain; SpainEscola Politécnica Superior, Avda. Mendizábal s/n. 15403-Ferrol, Spain; SpainEscola Politécnica Superior, Avda. Mendizábal s/n. 15403-Ferrol, Spain; SpainIn spite of the many studies performed, there is not yet a kinetic model to predict the thermal degradation of cellulose in isothermal and non-isothermal conditions for the full extent of conversion. A model proposed by the authors was tested on non-oxidising thermogravimetric data. The method consisted of initially fitting several isothermal and non-isothermal curves, then obtaining a critical temperature and an energy barrier from the set of fittings that resulted from different experimental conditions. While the critical temperature, approximately 226 °C, represented the minimum temperature for the degradation process, the degradation rate at a given temperature was related to both the critical temperature and the energy barrier. These results were compared with those observed in other materials. The quality of fittings obtained was superior to any other reported to date, and the results obtained from each single curve were in line with each other.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_3_5870_Lopez_Beceiro_Kinetics_Thermal_Degradation_CelluloseCelluloseKineticPyrolysisThermogravimetry |
| spellingShingle | Jorge López-Beceiro Ana Álvarez-García Teresa Sebio-Puñal Sonia Zaragoza-Fernández Begoña Álvarez-García Ana Díaz-Díaz Julia Janeiro Ramón Artiaga Kinetics of Thermal Degradation of Cellulose: Analysis Based on Isothermal and Linear Heating Data BioResources Cellulose Kinetic Pyrolysis Thermogravimetry |
| title | Kinetics of Thermal Degradation of Cellulose: Analysis Based on Isothermal and Linear Heating Data |
| title_full | Kinetics of Thermal Degradation of Cellulose: Analysis Based on Isothermal and Linear Heating Data |
| title_fullStr | Kinetics of Thermal Degradation of Cellulose: Analysis Based on Isothermal and Linear Heating Data |
| title_full_unstemmed | Kinetics of Thermal Degradation of Cellulose: Analysis Based on Isothermal and Linear Heating Data |
| title_short | Kinetics of Thermal Degradation of Cellulose: Analysis Based on Isothermal and Linear Heating Data |
| title_sort | kinetics of thermal degradation of cellulose analysis based on isothermal and linear heating data |
| topic | Cellulose Kinetic Pyrolysis Thermogravimetry |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_3_5870_Lopez_Beceiro_Kinetics_Thermal_Degradation_Cellulose |
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