title: Thermogravimetric investigation on the degradation properties and combustion performance of bio-oils.
abstract: The degradation properties and combustion performance of raw bio-oil, aged bio-oil, and bio-oil from torrefied wood were investigated through thermogravimetric analysis. A three-stage process was observed for the degradation of bio-oils, including devolatilization of the aqueous fraction and light compounds, transition of the heavy faction to solid, and combustion of carbonaceous residues. Pyrolysis kinetics parameters were calculated via the reaction order model and 3D-diffusion model, and combustion indexes were used to qualitatively evaluate the thermal profiles of tested bio-oils for comparison with commercial oils such as fuel oils. It was found that aged bio-oil was more thermally instable and produced more combustion-detrimental carbonaceous solid. Raw bio-oil and bio-oil from torrefied wood had comparable combustion performance to fuel oils. It was considered that bio-oil has a potential to be mixed with or totally replace the fuel oils in boilers.
authors.affiliation: Department of Forest Biomaterials, North Carolina State University, Raleigh, NC 27695, USA; College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, PR China.
authors.forename: Xueyong
authors.initials: X
authors.lastname: Ren
authors.affiliation: Department of Forest Biomaterials, North Carolina State University, Raleigh, NC 27695, USA.
authors.forename: Jiajia
authors.initials: J
authors.lastname: Meng
authors.affiliation: Department of Forest Biomaterials, North Carolina State University, Raleigh, NC 27695, USA.
authors.forename: Andrew M
authors.initials: AM
authors.lastname: Moore
authors.affiliation: College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, PR China.
authors.forename: Jianmin
authors.initials: J
authors.lastname: Chang
authors.affiliation: College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, PR China.
authors.forename: Jinsheng
authors.initials: J
authors.lastname: Gou
authors.affiliation: Department of Forest Biomaterials, North Carolina State University, Raleigh, NC 27695, USA. Electronic address: sunkyu_park@ncsu.edu.
authors.forename: Sunkyu
authors.initials: S
authors.lastname: Park
mesh_terms: D056804:Biofuels / Q000032:analysis*; D002244:Carbon / Q000032:analysis; D055598:Chemical Phenomena; D004055:Differential Thermal Analysis; D007700:Kinetics; D009821:Oils / Q000737:chemistry*; D010084:Oxidation-Reduction; D013696:Temperature; D013818:Thermogravimetry / Q000379:methods*; D014835:Volatilization; D014934:Wood / Q000737:chemistry
chemical_list: D056804:Biofuels; D009821:Oils; D002244:Carbon
keywords: Bio-oil; Combustion performance; Degradation; Fuel oils; Thermogravimetric analysis