The effect of fast pyrolysis of sunflower oil cake on product yields and properties under catalyst and non-catalyst conditions

In this thesis, the effects of fast pyrolysis of sunflower oil cake on obtained product yields and product properties were investigated under non-catalytic condition and using clinoptilolite catalyst. Firstly, the effects of heating rate (100, 200, 300℃/min), pyrolysis temperature (400, 500, 600℃) and catalyst percentages (5%, 10%, 15%) on product yields were investigated. In the experiments conducted with the addition of clinoptilolite catalyst during fast pyrolysis of sunflower oil cake, it was determined that the catalyst did not change the solid product yield much, it considerably reduced the liquid product yield and increased the gas product yield. In the biochar samples, the highest heating value was obtained as 22.95 MJ/kg at 300 °C/min heating rate and 500 ℃ pyrolysis temperature conditions without catalyst. When the microscopic structure of the biochar samples was examined, it was understood that the porosity increased compared to the raw material. It was determined that the heating values of the gas samples obtained under the non catalyst-free condition were higher than those of the samples obtained under the non-catalytic condition. The highest lower heating value was obtained as 29.05 MJ/Nm³ at 400°C temperature and 100°C/min heating rate conditionsBiooil samples obtained by pyrolysis of sunflower oil cakeat different temperatures with and without catalyst were examined by GC-MS method, and it was determined that especially phenol compounds (Phenol, Phenol, 2-methoxy-) were found in almost every sample. In addition, aromatic compounds such as Pyrazine-methyl, Pyrazine 2,6-dimethyl-(CAS) 2,6-Dimethylpyrazine have also been detected. Key words: Biomass, Pyrolysis, Fast Pyrolysis, Catalyst, Catalyzed Pyrolysis