Microwave assisted pyrolysis (MAP) of waste tires is an alternative or a complementary way to other physical and thermal recycling processes. MAP transforms tires in three useful classes of products: a solid, a liquid and a gas. Among them, liquid is the most attractive due to its hydrocarbon composition useful as fuel or source of chemicals. Pyrolysis experiments were carried out in a batch laboratory scale using a microwave (MW) oven operating at 2.45 GHz, an energy output up to 6 KW and a fractionating system directly connected to the pyrolysis oven. The presence of the fractionating system let us to obtain a liquid with low density (from 0.92 to 0.88 g/cm3), and viscosity (from 3.92 to 1.25 cP). Chemical composition was also affected by the presence of a fractionating system leading to high yields of aromatic and olefinic compounds. Finally different tires affected the MAP results: Tires containing a large amount of aromatics (styrene copolymers) were pyrolyzed faster than tire rich in natural rubber.
Upgraded Fuel from Microwave Assisted Pyrolysis of Waste Tire / A. Undri; L. Rosi; M. Frediani; P. Frediani. - In: FUEL. - ISSN 0016-2361. - STAMPA. - 115:(2014), pp. 600-608. [10.1016/j.fuel.2013.07.058]
Upgraded Fuel from Microwave Assisted Pyrolysis of Waste Tire
UNDRI, ANDREA;ROSI, LUCA;FREDIANI, MARCO;FREDIANI, PIERO
2014
Abstract
Microwave assisted pyrolysis (MAP) of waste tires is an alternative or a complementary way to other physical and thermal recycling processes. MAP transforms tires in three useful classes of products: a solid, a liquid and a gas. Among them, liquid is the most attractive due to its hydrocarbon composition useful as fuel or source of chemicals. Pyrolysis experiments were carried out in a batch laboratory scale using a microwave (MW) oven operating at 2.45 GHz, an energy output up to 6 KW and a fractionating system directly connected to the pyrolysis oven. The presence of the fractionating system let us to obtain a liquid with low density (from 0.92 to 0.88 g/cm3), and viscosity (from 3.92 to 1.25 cP). Chemical composition was also affected by the presence of a fractionating system leading to high yields of aromatic and olefinic compounds. Finally different tires affected the MAP results: Tires containing a large amount of aromatics (styrene copolymers) were pyrolyzed faster than tire rich in natural rubber.File | Dimensione | Formato | |
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