title: Pyrolysis behaviors and kinetics of refining and chemicals wastewater, lignite and their blends through TGA.
abstract: Co-pyrolysis behaviors of refining and chemicals wastewater solid (RS) and Huolinhe lignite (HL) were investigated via thermogravimetric analysis (TGA). The thermal degradation process of RS and the blends proceeded in three stages, while two stages for HL. The increased percentage of RS in the blends reduced the characteristic temperature (Ti, Tp, Tf) and residual mass (Mr), while raised the characteristic reaction rate (Rp, Rv) and comprehensive devolatilization parameter (D). The results indicated that there existed some inhibitive interactions between RS and HL. The activation energies were calculated by using the Friedman and Starink method. The activation energy of RS increased first and then decreased with conversion degree, and the variation wasn't as great as that of the blends and lignite. No matter which conversion degree is, the activation energy decreased with the percentage of RS in the blends increasing. The minimum value was obtained by blending 75wt.% RS.
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering of Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, 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. Electronic address: cjb2111@163.com.
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: 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
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering of Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116023, China.
authors.forename: Aimin
authors.initials: A
authors.lastname: Li
authors.affiliation: Heat/Electric Power Eng. Design Dept. NORINDAR International, (Group) Ltd., Shijiazhuang 050011, China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Chi
mesh_terms: D003031:Coal; D007700:Kinetics; D013818:Thermogravimetry / Q000379:methods; D062065:Wastewater / Q000737:chemistry*
chemical_list: D003031:Coal; D062065:Wastewater
keywords: Co-pyrolysis; Kinetics; Lignite; Thermogravimetric analysis; Wastewater