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Kinetic modelling for thermal decomposition of agricultural residues at different heating rates
- Source :
- Biomass Conversion and Biorefinery. 13:3281-3295
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- The purpose of this work was to establish the pyrolysis kinetics of agricultural biomass residues (mustard husk (MH), cotton stalk (CS), and groundnut shell (GNS)) using thermogravimetric analysis (TGA). TGA is carried out at different heating rates (5, 10, 30, and 50 K/min) under inert conditions in the temperature range of 303–1173 K. The iso-conversional methods of Friedman, Kissinger-Akahira-Sunose, and Flynn-Wall-Ozawa were used to estimate the activation energy of the decomposition process. The Criado method, Coats-Redfern Method, and Direct Differential methods were used to model the kinetics, with the latter two methods providing a closer fit with the experimental data. The kinetics of thermal degradation were separately studied for three temperature zones represented as drying, active, and passive zones. The results of Coats-Redfern and Direct Differential methods showed that (i) the nth-order reaction model is applicable for all the samples with order of reaction in the active zone being around ~ 2.0–3.0, ~ 2.5–3.0, and ~ 3.0 for MH, CS, and GNS, respectively, and (ii) the D-3 model is applicable for all the samples in the passive zone.
- Subjects :
- Thermogravimetric analysis
Order of reaction
Materials science
Renewable Energy, Sustainability and the Environment
020209 energy
Chemical process of decomposition
Thermal decomposition
Kinetics
Analytical chemistry
02 engineering and technology
Activation energy
010501 environmental sciences
Atmospheric temperature range
01 natural sciences
0202 electrical engineering, electronic engineering, information engineering
Pyrolysis
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 21906823 and 21906815
- Volume :
- 13
- Database :
- OpenAIRE
- Journal :
- Biomass Conversion and Biorefinery
- Accession number :
- edsair.doi...........8c1206e5f44ddb2845c86de826c60829