Microwave pyrolysis of polymeric materials: Waste tires treatment and characterization of the value-added products
By Andrea Undri, Stefano Meini, Luca Rosi, Marco Frediani, P. Frediani. 2013
136 citations recorded by the source corpus.
Waste tires are well known to have relevant disposal or reprocessing problems under environmental and economic sustainable conditions. These processes may be a challenge for industrial and academic research. In this contest pyrolysis represent a modern valid alternative to undergo treatment of waste tires as long as it will be possible to generate value-added products. Anyway improvements in the heat transfer technology are crucial to optimize the efficiency of the process itself. Here we describe the use of microwave (MW) irradiation as one of the most promising heating technologies for pyrolysis, due to its ability to heat quickly and directly any MW absorbing material. Experiments were run in a batch laboratory scale with an oven operating at a frequency of 2.45 GHz with a variable energy output up to 6 kW. A special attention was dedicated to the influence of operating variables on liquid product properties. The reaction was performed in a short time comparing with traditional heating techniques and the most performing conditions were achieved using a MW power of 3 kW per 0.2 kg of tires. Typical products were a solid residue (char) containing up to 92.03% of carbon and appreciable quantities of mineral matter, a low viscosity oil (<2.9 cP, with a large amount of single ring aromatic hydrocarbons) and a gas containing light hydrocarbons, hydrogen and only traces of N2. The three products collected had a high calorific value, respectively 34 MJ/kg for solid, 45 MJ/kg for liquid, and 46 MJ/kg for the gas fraction.
Subfields: Biomedical Engineering, Industrial and Manufacturing Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/c47ff7c13c21cb21584487be3bdb40e8d85942b7
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Biomedical Engineering
In Industrial and Manufacturing Engineering
In Materials Chemistry
Citations in the corpus
- Valorization of packaging plastic waste by slow pyrolysis (2018, methodology): “Various other reactor configurations like conical spouted bed reactor (Aguado et al., 2002c; Elordi et al., 2009), rotary kiln reactor (Aguado et al., 2002a; Serrano et al., 2003), microwave pyrolysis (Ludlow-Palafox and Chase, 2001b; Undri et al., 2013) etc. have also been utilized.”