Kinetic model of the thermal pyrolysis of chrome tanned leather treated with NaOH under different conditions using thermogravimetric analysis
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Title: | Kinetic model of the thermal pyrolysis of chrome tanned leather treated with NaOH under different conditions using thermogravimetric analysis |
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Authors: | Bañón, Elena | Marcilla, Antonio | García, Angela N. | Martínez, Pascual | León, Milagros |
Research Group/s: | Procesado y Pirólisis de Polímeros |
Center, Department or Service: | Universidad de Alicante. Departamento de Ingeniería Química | Universidad de Alicante. Instituto Universitario de Ingeniería de los Procesos Químicos |
Keywords: | Leather | Kinetics | Modelling | Pyrolysis | Thermal decomposition | Alkali treatment |
Knowledge Area: | Ingeniería Química |
Issue Date: | Feb-2016 |
Publisher: | Elsevier |
Citation: | Waste Management. 2016, 48: 285-299. doi:10.1016/j.wasman.2015.10.012 |
Abstract: | The thermal decomposition of chrome tanned leather before and after a soaking treatment with NaOH was studied using thermogravimetric analysis (TGA). The effect of the solution concentration (0.2 M and 0.5 M) and the soaking time (5 min and 15 min) was evaluated. TGA experiments at four heating rates (5, 10, 15 and 20 °C min−1) were run in a nitrogen atmosphere for every treatment condition. A kinetic model was developed considering the effect of the three variables studied, i.e.: the NaOH solution concentration, the soaking time and the heating rate. The proposed model for chrome tanned leather pyrolysis involves a set of four reactions, i.e.: three independent nth order reactions, yielding the corresponding products and one of them undergoing a successive cero order reaction. The model was successfully applied simultaneously to all the experimental data obtained. The evaluation of the kinetic parameters obtained (activation energy, pre-exponential factor and reaction order) allowed a better understanding of the effect of the alkali treatment on these wastes. |
Sponsor: | Co-financial support for this investigation has been provided by IVACE, Generalitat Valenciana (Spain), and FEDER (EU) for research within the field of pyrolysis flash of leather waste. |
URI: | http://hdl.handle.net/10045/62955 |
ISSN: | 0956-053X (Print) | 1879-2456 (Online) |
DOI: | 10.1016/j.wasman.2015.10.012 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2015 Elsevier Ltd. |
Peer Review: | si |
Publisher version: | http://dx.doi.org/10.1016/j.wasman.2015.10.012 |
Appears in Collections: | INV - GTP3 - Artículos de Investigación sobre Pirólisis Catalítica de Polímeros |
Files in This Item:
File | Description | Size | Format | |
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2016_Banon_etal_WasMan_final.pdf | Versión final (acceso restringido) | 2,77 MB | Adobe PDF | Open Request a copy |
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