title: Pyrolysis of grape bagasse: effect of pyrolysis conditions on the product yields and characterization of the liquid product.
abstract: In this study, pyrolysis of grape bagasse was investigated with the aim to study the product distribution and their chemical compositions and to identify optimum process conditions for maximizing the bio-oil yield. Particular investigated process variables were temperature (350-600°C), heating rate (10-50°C/min) and nitrogen gas flow rate (50-200 cm(3)/min). The maximum oil yield of 27.60% was obtained at the final pyrolysis temperature of 550°C, sweeping gas flow rate of 100 cm(3)/min and heating rate of 50°C/min in a fixed-bed reactor. The elemental analysis and heating value of the bio-oils were determined, and then the chemical composition of the bio-oil was investigated using chromatographic and spectroscopic techniques such as column chromatography, (1)H NMR and FTIR. The fuel properties of the bio-oil such as flash point, viscosity and density were also determined. The bio-oils obtained from grape bagasse were presented as an environmentally friendly feedstock candidate for bio-fuels.
authors.affiliation: Department of Chemical Engineering, Faculty of Engineering and Architecture, Eskişehir Osmangazi University, Meşelik Campus, 26480 Eskişehir, Turkey. idemiral@ogu.edu.tr
authors.forename: Ilknur
authors.initials: I
authors.lastname: Demiral
authors.forename: Emine Asli
authors.initials: EA
authors.lastname: Ayan
mesh_terms: D001709:Biotechnology / Q000379:methods*; D002244:Carbon / Q000737:chemistry; D002482:Cellulose / Q000737:chemistry*; D002845:Chromatography / Q000379:methods; D006358:Hot Temperature; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D009821:Oils / Q000737:chemistry; D013053:Spectrophotometry / Q000379:methods; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods; D013696:Temperature; D027843:Vitis / Q000737:chemistry*
chemical_list: D009821:Oils; D002244:Carbon; D002482:Cellulose; C027433:bagasse