Kinetics and thermodynamics of microalgae residue oxidative pyrolysis based on double distributed activation energy model with simulated annealing method
Kinetics and thermodynamics of microalgae residue oxidative pyrolysis based on double distributed activation energy model with simulated annealing method
Non-isothermal thermogravimetric analysis (TGA) at four heating rates of 10, 20, 30 and 40 K min−1 under oxidative atmosphere was employed to investigate the characteristics of microalgae residue oxidative pyrolysis. The double distributed activation energy model (DAEM) was used to analyze the oxidative pyrolysis kinetics of microalgae residue and the simulated annealing method was employed for the estimation of the model parameters. The results showed that the double DAEM could describe the kinetic experimental data of microalgae residue oxidative pyrolysis very well whilst the simulated annealing method was effective for determining the kinetic parameters of the double DAEM. The kinetic process of microalgae residue oxidative pyrolysis could be considered as two partially overlapped pseudo-sub-processes. The mean values of activation energy distributions were 179 and 259 kJ mol−1 for the first and second pseudo-sub-processes. The thermodynamic parameters of microalgae residue oxidative pyrolysis processes at the different heating rate were studied based on the obtained kinetic parameters.
Distributed activation energy model (DAEM), Kinetics, Microalgae residue, Simulated annealing method, Thermochemical conversion, Thermodynamics
Guo, Xiaojuan
1c550b1c-5221-4ebd-9a8b-49585ba22012
Cai, Junmeng
9e5ac5c2-f617-4571-a0f5-687670340568
Yu, Xi
7e4f553f-cc11-4c6e-ad6d-9fb5c3c07a60
2 January 2021
Guo, Xiaojuan
1c550b1c-5221-4ebd-9a8b-49585ba22012
Cai, Junmeng
9e5ac5c2-f617-4571-a0f5-687670340568
Yu, Xi
7e4f553f-cc11-4c6e-ad6d-9fb5c3c07a60
Guo, Xiaojuan, Cai, Junmeng and Yu, Xi
(2021)
Kinetics and thermodynamics of microalgae residue oxidative pyrolysis based on double distributed activation energy model with simulated annealing method.
Journal of Analytical and Applied Pyrolysis, 154, [104997].
(doi:10.1016/j.jaap.2020.104997).
Abstract
Non-isothermal thermogravimetric analysis (TGA) at four heating rates of 10, 20, 30 and 40 K min−1 under oxidative atmosphere was employed to investigate the characteristics of microalgae residue oxidative pyrolysis. The double distributed activation energy model (DAEM) was used to analyze the oxidative pyrolysis kinetics of microalgae residue and the simulated annealing method was employed for the estimation of the model parameters. The results showed that the double DAEM could describe the kinetic experimental data of microalgae residue oxidative pyrolysis very well whilst the simulated annealing method was effective for determining the kinetic parameters of the double DAEM. The kinetic process of microalgae residue oxidative pyrolysis could be considered as two partially overlapped pseudo-sub-processes. The mean values of activation energy distributions were 179 and 259 kJ mol−1 for the first and second pseudo-sub-processes. The thermodynamic parameters of microalgae residue oxidative pyrolysis processes at the different heating rate were studied based on the obtained kinetic parameters.
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Published date: 2 January 2021
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Funding Information:
Financial support from Guangdong Basic and Applied Basic Research Foundation (Project No.: 2019B1515120002), Engineering Research Center of Non-Food Biomass Efficient Pyrolysis and Utilization Technology of Guangdong Higher Education Institutes (Project No.: 2016GCZX009), Scientific Research Youth Team Project of Dongguan University of Technology (Project No.: TDQN2019006), Guangdong Provincial Key Laboratory of Distributed Energy Systems (Project No.: 2020B1212060075) and Key Project of Dongguan Social Science and Technology Development (No. 2019507140180) is greatly acknowledged. Md. Maksudur Rahman, a Ph.D. candidate from Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University is acknowledged for his suggestions.
Keywords:
Distributed activation energy model (DAEM), Kinetics, Microalgae residue, Simulated annealing method, Thermochemical conversion, Thermodynamics
Identifiers
Local EPrints ID: 481881
URI: http://eprints.soton.ac.uk/id/eprint/481881
ISSN: 0165-2370
PURE UUID: 4096db92-4b7c-4330-809a-79b0365837f8
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Date deposited: 12 Sep 2023 16:41
Last modified: 18 Mar 2024 04:14
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Author:
Xiaojuan Guo
Author:
Junmeng Cai
Author:
Xi Yu
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