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Value-added performance of processed cardboard and farm breeding compost by pyrolysis.

Ghorbel, Leila; Rouissi, Tarek; Brar, Satinder Kaur; López-González, Diego; Ramirez, Antonio Avalos; Godbout, Stéphane (2015). Value-added performance of processed cardboard and farm breeding compost by pyrolysis. Waste Management , vol. 38 . p. 164-173. DOI: 10.1016/j.wasman.2015.01.009.

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Résumé

This study aims to underline the huge potential in Canada of adding value to cardboard and compost as a renewable fuel with a low ecological footprint. The slow pyrolysis process of lined cardboard and compost blend was investigated. Thermal behavior was investigated by thermogravimetric analysis coupled with mass spectrometry (TGA-MS). The thermal profiles are presented in the form of TGA/DTG curves. With a constant heating rate of 10 °C/min, two parameters, temperature and time were varied. Cardboard decomposition occurred mostly between 203 °C and 436 °C, where 77% of the sample weight was decomposed. Compost blend decomposition occurred mostly between 209 °C and 373 °C, with 23% of weight. The principal gaseous products that evolved during the pyrolysis were H₂O, CO and CO₂. As a result, slow pyrolysis led to the formation of biochar. High yield of biochar from cardboard was found at 250 °C for a duration of 60 min (87.5%) while the biochar yield from the compost blend was maintained constant at about 31%. Finally, kinetic parameters and a statistical analysis for the pyrolysis process of the cardboard and compost samples have been investigated. Both materials showed a favorable thermochemical behavior. However, unlike cardboard, compost pyrolysis does not seem a promising process because of the low superior calorific and biochar values.

Type de document: Article
Mots-clés libres: wastes; biochar; slow pyrolysis; optimization and superior calorific value
Centre: Centre Eau Terre Environnement
Date de dépôt: 20 avr. 2018 20:10
Dernière modification: 20 avr. 2018 20:10
URI: http://espace.inrs.ca/id/eprint/3854

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