Fuel, Vol.144, 50-59, 2015
A kinetic model for thermal cracking of waste cooking oil based on chemical lumps
Thermal cracking or fast pyrolysis of waste cooking oil (WCO) was performed in a continuous pilot plant operating under isothermal conditions. The experiments were carried out varying the temperature (475, 500 and 525 degrees C) and the residence time (5-70 s) to obtain experimental data in order to construct a kinetic model based on chemical lumps. The kinetic model of the waste cooking oil is based on four lumps, defined according to the number of carbon atoms in the carbon chain, determined by gas chromatography, distributed as: waste cooking oil (WCO) (>C18); heavy bio-oil (HBO) (C12-C18); light bio-oil (LBO) (C4-C11); and bio-gas (BG) (