Study of the Pyrolysis Kinetics of a Mixture of Polyethylene, Polypropylene, and Polystyrene

Autor:	I. Gulyurtlu, Filomena Pinto, Isabel Cabrita, Ana M. Ramos, Maria Bernardo, Paula Costa
Rok vydání:	2010
Předmět:	Polypropylene Reaction mechanism Materials science General Chemical Engineering Kinetics Energy Engineering and Power Technology Activation energy Polyethylene Kinetic energy chemistry.chemical_compound Fuel Technology chemistry Chemical engineering Organic chemistry Polystyrene Pyrolysis
Zdroj:	Energy & Fuels. 24:6239-6247
ISSN:	1520-5029 0887-0624
DOI:	10.1021/ef101010n
Popis:	The principal aim of this study was the identification of possible routes for the reaction mechanism of a plastic waste mixture pyrolysis. Kinetic studies of a mixture of equal percentages of polyethylene (PE), polypropylene (PP), and polystyrene (PS) were performed in order to analyze if the direct conversion of plastic wastes into gaseous, liquid, and solid products was favored, or if parallel reactions and/or reversible elementary steps should be considered. The experiments were carried out in a six microautoclave system. On the basis of the experimental results obtained at different temperatures and reaction times, a reaction pathway was proposed. The fitting of a kinetic model to the experimental data was performed. The models reasonably fit the results and gave a satisfactory explanation of several experimental data of thermal degradation of the plastic waste mixture tested. The kinetic parameters were estimated, and a dependence of the activation energy and of the pre-exponential factor on temperat...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5624133278ce397daf39217f9bb18e86 https://doi.org/10.1021/ef101010n Zobrazit plný text záznamu