title: Pyrolysis of oil-plant wastes in a TGA and a fixed-bed reactor: Thermochemical behaviors, kinetics, and products characterization.
abstract: Pyrolysis characteristics of four distinct oil-plant wastes were investigated using TGA and fixed-bed reactor coupled with GC. TGA experiments showed that the pyrolysis behaviors were related to biomass species and heating rates. As the heating rate increased, TG and DTG curves shifted to the higher temperatures, and the comprehensive devolatilization index obviously increased. The remaining chars from TGA experiments were higher than those obtained from the fixed-bed experiments. The crack of tars at high temperatures enhanced the formation of non-condensable gases. During the pyrolysis, C-O and CO2 were the major gases. Chars FTIR showed that the functional groups of O-H, C-H(n), C=O, C-O, and C-C gradually disappeared from 400 °C on. The kinetic parameters were calculated by Coats-Redfern approach. The results manifested that the most appropriate pyrolysis mechanisms were the order reaction models. The existence of kinetic compensation effect was evident.
authors.affiliation: School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, China.
authors.forename: Jianbiao
authors.initials: J
authors.lastname: Chen
authors.affiliation: School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, China.
authors.forename: Xiaotian
authors.initials: X
authors.lastname: Fan
authors.affiliation: School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Jiang
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116023, China; School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Mu
authors.affiliation: School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, China.
authors.forename: Pikai
authors.initials: P
authors.lastname: Yao
authors.affiliation: School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, China. Electronic address: hcyin@dlut.edu.cn.
authors.forename: Hongchao
authors.initials: H
authors.lastname: Yin
authors.affiliation: School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, China.
authors.forename: Xigeng
authors.initials: X
authors.lastname: Song
mesh_terms: D056804:Biofuels; D003198:Computer Simulation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006361:Heating / Q000295:instrumentation*; D006859:Hydrogen / Q000032:analysis / Q000737:chemistry*; D007700:Kinetics; D008956:Models, Chemical; D010936:Plant Extracts; D010938:Plant Oils; D012037:Refuse Disposal / Q000295:instrumentation*; D013696:Temperature
chemical_list: D056804:Biofuels; D010936:Plant Extracts; D010938:Plant Oils; D006859:Hydrogen
keywords: Coats–Redfern approach; Fixed-bed reactor; Oil-plant wastes; Pyrolysis; TGA