Nombre: DIUNAY ZULIANI MANTEGAZINI
Tipo: MSc dissertation
Fecha de publicación: 26/03/2020
Supervisor:
Nombre |
Rol |
|---|---|
| MARCELO SILVEIRA BACELOS | Advisor * |
Junta de examinadores:
| Nombre |
Rol |
|---|---|
| KÁSSIA GRACIELE DOS SANTOS | External Examiner * |
| MARCELO SILVEIRA BACELOS | Advisor * |
| TAISA SHIMOSAKAI DE LIRA | Internal Examiner * |
| THIAGO PADOVANI XAVIER | Co advisor * |
Resumen: Among the carton packages waste recovery processes, pyrolysis is reported as a
sustainable, clean and innovative technology. Its use makes it possible to obtain
products with high added value, such as paraffinic oils and aluminum ingots, in
addition to contributing to the recovery of a solid residue. The spouted bed composed
of binary mixtures (solid + inert) has been investigated as a promising reactor for
pyrolysis of solids, due to its high rate of thermal exchange. However, a greater
understanding of the segregation of binary particles is still necessary, in order to
obtain operational conditions that present low segregation rates. In this context, this
work is divided into two parts. The first aims to investigate the effect of air velocity,
diameter ratio and particle concentration on segregation, as evidenced by the mixture
index (Im), based on design of experiments. The second part aims to carry out an
analysis of the economic and energetic potential of the spouted bed process. Among
the factors analyzed, only the concentration of LDPE/Al composite (Xc) and the
particle diameter ratio (Dps/Dpc) had an effect on the mixing index (Im). For all regions,
it is possible to state that the model satisfactorily predicts factor effects on the mixing
index (Im) with an error of less than 8%. The desirable operational conditions (Im1)
for the process are met for the factors Dps/Dpc = 1.39 and Xc = 10%. Regarding the
energy consumption of the process, it can be seen that the use of pyrolysis can
recover 0.745 MWh/ton of carton when compared to the traditional process.
Keywords: Energy. Particulate systems. Solid waste. Aluminum. LDPE/Al composite.
