Recovery, separation and production of fuel, plastic and aluminum from the Tetra PAK waste to hydrothermal and pyrolysis processes
Metadatos
Mostrar el registro completo del ítemAutor
Muñoz Batista, Mario Jesús; Blázquez García, Gabriel; Franco, Juan; Calero De Hoces, Francisca Mónica; Martín Lara, María ÁngelesEditorial
Elsevier
Materia
Tetra Pak waste Hydrothermal treatment Spent olive oil Pyrolysis Recycling
Fecha
2021-11-15Referencia bibliográfica
M.J. Muñoz-Batista... [et al.]. Recovery, separation and production of fuel, plastic and aluminum from the Tetra PAK waste to hydrothermal and pyrolysis processes, Waste Management, Volume 137, 2022, Pages 179-189, ISSN 0956-053X, [https://doi.org/10.1016/j.wasman.2021.11.007]
Resumen
The establishment of a method of separation of materials from Tetra Pak waste to obtain products for use as raw
material, fuel or other purposes was investigated in this study. First, the feasibility of hydrothermal treatment for
the production of a solid fuel (hydrochar) and solid fraction formed by polyethylene and aluminum, called
composite was analyzed. The results indicated that hydrothermal treatment performed at 240 ◦C yield the formation
of hydrochar with good properties for its use as fuel and a composite of polyethylene and aluminum. The
best conversion and separation of the cardboard and polyethylene/aluminum were obtained using 120 min as
operating time. Then, the recovery of the aluminum fraction from the composite by using spent olive oil waste
was studied. A partial separation of the composite layers (polyethylene and aluminum) was accomplished with
improved aluminum purity for higher operating temperatures. Finally, the operating conditions of the pyrolysis
process for the production of a solid (char) and high purity composite (aluminum) were optimized. The characterization
results indicated that both char and aluminum resulting from the pyrolysis of the Tetra Pak at 400 ◦C
still have a significant amount of polyethylene while higher purity levels of aluminum can be obtained at
temperatures equal of higher than 500 ◦C.