title: Characteristics and kinetic studies of Hydrilla verticillata pyrolysis via thermogravimetric analysis.
abstract: The pyrolysis characteristics and kinetic of Hydrilla verticillata (HV) have been investigated using non-isothermal thermogravimetric analysis. The results showed that the pyrolysis behavior of HV can be divided into two independent stages. The kinetics of Stage I was investigated using a distributed activation energy model (DAEM) with discrete 99 first-order reactions. Stage II was an independent stage which corresponds to the decomposition of calcium oxalate, whose kinetics was studied using iso-conversional method together with compensation effect and master-plots method. The activation energies ranged from 92.39 to 506.17 and 190.42 to 222.48 kJ/mol for the first and second stages respectively. Calculated data gave very good fit to the experimental data.
authors.affiliation: School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
authors.forename: Zhiquan
authors.initials: Z
authors.lastname: Hu
authors.affiliation: School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
authors.forename: Zhihua
authors.initials: Z
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, PR China. Electronic address: ligb@ihb.ac.cn.
authors.forename: Genbao
authors.initials: G
authors.lastname: Li
authors.affiliation: School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Chen
authors.affiliation: School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
authors.forename: Mian
authors.initials: M
authors.lastname: Hu
authors.affiliation: School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
authors.forename: Mahmood
authors.initials: M
authors.lastname: Laghari
authors.affiliation: School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
authors.forename: Xun
authors.initials: X
authors.lastname: Wang
authors.affiliation: School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
authors.forename: Dabin
authors.initials: D
authors.lastname: Guo
mesh_terms: D002119:Calcium Carbonate / Q000737:chemistry; D002129:Calcium Oxalate / Q000737:chemistry; D002627:Chemistry, Physical; D006358:Hot Temperature; D031321:Hydrocharitaceae / Q000378:metabolism*; D007700:Kinetics; D015233:Models, Statistical; D008962:Models, Theoretical; D013818:Thermogravimetry
chemical_list: D002129:Calcium Oxalate; D002119:Calcium Carbonate
keywords: Hydrilla verticillata; Kinetics; Pyrolysis; Thermogravimetric analysis