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Title: Volatile products of catalytic thermal decomposition of waste poly(ethylene terephthalate)
Other Titles: Productes volàtils de la descomposició tèrmica catalítica de residus de polietilè tereftalat
Author: Solé Solé. Judith
Director: Dzięcioł, Małgorzata
Keywords: Tereftalat de polietilè
Descomposició (Química)
Treballs de fi de grau
Polyethylene terephthalate
Decomposition (Chemistry)
Bachelor's thesis
Issue Date: Jun-2014
Abstract: Poly(ethylene terephthalate), commonly abbreviated as PET, is one of the most widely used thermoplastics in everyday life thanks to its excellent physical and chemical properties. Due to the slow biodegradability of PET wastes and the fact that its consumption is still increasing, there is a growing interest on recycling of post-consumer PET wastes to reduce its volume in land-fill sites. Among the recycling methods, chemical recycling is the most acceptable method in environmental terms as it leads to the formation of the materials from which the polymer is originally made or other raw materials. Moreover, the recycling of polymer waste by thermal processes (pyrolysis) can be an important source of hydrocarbons for the petrochemical industry, contributing to the environmental protection. However, this process requires high quantity of energy due to the poor thermal conductivity and endothermicity of plastics. To decrease thermal decomposition costs of polymeric material wastes, cheap catalysts have become of the most interest from a global recycling point of view. In the present work, two kinds of fly ash (coal and biomass fly ash) were tested as catalysts to examine their influence on the volatile compounds emitted during thermal decomposition process of waste PET in selected conditions: 400ºC in N2 atmosphere. Moreover, two methods of mixing sample with each fly ash were performed to compare their effects. The analysis was performed using gas chromatography method with different detectors and spectrophotometric method.
Note: Treballs Finals de Grau de Química, Facultat de Química, Universitat de Barcelona, Any: 2014, Tutora: Małgorzata Dzięcioł
Appears in Collections:Treballs Finals de Grau (TFG) - Química

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