Renewable Energy, Vol.124, 34-39, 2018
Preparation of biofuels with waste cooking oil by fluid catalytic cracking: The effect of catalyst performance on the products
Biofuels were produced with waste cooking oil by Fluid Catalytic Cracking (FCC). The catalytic reactions involved two catalysts of Endurance and CGP-1HN, which were characterized by Scanning Electron Microscopy (SEM), N2 Adsorption-Desorption, X-ray Diffraction (XRD) and Pyridine Fourier Transform Infrared Spectroscopy (Py-FTIR). The results indicated that the structure and properties of Endurance and CGP-1HN were similar, and the most obvious difference between them was a different content of acid sites. The Lewis and Bronsted acid contents of Endurance were 189.39 and 341.69 mu mol/g, respectively, and the Lewis and Bronsted acid contents of CGP-1HN were 21.53 and 258.23 mu mol/g, respectively. The different acid sites resulted in different distributions of products under the same reaction conditions. A higher diesel yield (32.04 wt%) was achieved using Endurance, and a higher Liquefied Petroleum Gas(LPG) yield (42.71 wt%) was produced using CGP-1HN. The result shows that different type acid and acid contents effect on the product distribution. The Lewis acid sites decreases the catalytic cracking depth of waste cooking oil. (C) 2017 Elsevier Ltd. All rights reserved.