Characterization of the Different Oils Obtained through the Catalytic In Situ Pyrolysis of Polyethylene Film from Municipal Solid Waste
Metadatos
Mostrar el registro completo del ítemAutor
Quesada, Lucía; Calero De Hoces, Francisca Mónica; Martín Lara, María Ángeles; Pérez Muñoz, Antonio; Paucar Sánchez, Marco Favio; Blázquez García, GabrielEditorial
MDPI
Materia
Polyethylene Plastic pyrolysis Catalysis Zeolites Characterization Waste recycling
Fecha
2022-04-16Referencia bibliográfica
Quesada, L... [et al.]. Characterization of the Different Oils Obtained through the Catalytic In Situ Pyrolysis of Polyethylene Film from Municipal SolidWaste. Appl. Sci. 2022, 12, 4043. [https://doi.org/10.3390/app12084043]
Patrocinador
PID2019-108826RB-I00; MCIN/AEI/10.13039/501100011033Resumen
Nowadays, the thermal and catalytic decomposition of plastic wastes by pyrolysis is one of
the best alternatives to convert these wastes into quality fuel oils, thus replenishing some petroleum
resources. This work studied the catalytic pyrolysis of polyethylene film waste from the remaining
organic fraction on different catalysts under dynamic operating conditions in a batch reactor. These
catalysts have been characterized through isotherms of adsorption-desorption with N2 and X-ray
powder diffraction for structural characterization to see the differences in their use. The results
obtained have been compared with the pyrolysis of the same material without a catalyst. Special
attention has been paid to the similarities and differences with thermal pyrolysis. The characterization
of the liquid fraction, including physical and chemical properties, has been carried out. The liquid
yield varies from 37 to 43%; it has good calorific values of 46–48 MJ/kg, an average density of
0.82 g/cm3, and a fairly low viscosity compared to the product without the catalyst. Other properties
like the American Petroleum Institute (API) gravity or pH were also determined and found to be
similar to conventional fuels. Oils are mainly composed of paraffins, naphthenes, and aromatic
hydrocarbons. The general distribution of carbons is C7 to C31. Finally, a detailed analysis of the
composition of liquid products shows they present heavy naphtha, kerosene, and diesel fractions in
different proportions in the function of the catalyst used.