Catalytic cracking of waste cooking oil for biofuel production using zirconium oxide catalyst
2018
Wako, Fekadu Mosisa | Reshad, Ali Shemsedin | Bhalerao, Machhindra S. | Goud, Vaibhav V.
In the present work, catalytic cracking of waste cooking oil (WCO) for the production of liquid fuels has been studied in a semi batch reactor under N2 atmosphere. Catalytic cracking was performed at a temperature range of 400–500 °C using zirconium oxide (ZrO2) as a catalyst. The influence of temperature, heating rate, residence time and catalyst loading on the product yield has been studied. The physicochemical properties such as calorific value, density, flash point and kinematic viscosity of organic liquid product (OLP) was analysed for its suitability for fuel application. The chemical compositions and functional groups present in OLP were identified by gas chromatography-mass spectrometry (GC-MS) and Fourier transformed infrared spectroscopy (FTIR). From the overall study, the optimal ZrO2 load, reaction temperature, residence time and heating rate were found to be 4 wt%, 475 °C, 120 min and 10 °C/min, respectively at which 83 wt% of OLP was obtained. From the results of catalyst characterization, it was confirmed that the catalyst can be regenerated after use.
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