Combustion Characteristics, Kinetics, and Thermodynamics of Pine Wood Through Thermogravimetric Analysis

Xu, Xiaokang; Pan, Renming; Chen, Ruiyu

doi:10.1007/s12010-020-03480-x

Cited by 30 publications

(14 citation statements)

References 57 publications

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“…Co-pyrolysis resulted in a gradual decrease in average activation energy. This may be due to activation and decomposition of biomass components such as cellulose, hemicellulose, lignin, extractives and other components [ 40 ]. Reduction in activation energy depicts easier thermal conversion [ 41 ].…”

Section: Resultsmentioning

confidence: 99%

Synergetic Effects during Co-Pyrolysis of Sheep Manure and Recycled Polyethylene Terephthalate

Akyürek

2021

Polymers

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Continuous growth in energy demand and plastic waste production are two global emerging issues that require development of clean technologies for energy recovery and solid waste disposal. Co-pyrolysis is an effective thermochemical route for upgrading waste materials to produce energy and value added products. In this study, co-pyrolysis of sheep manure (SM) and recycled polyethylene terephthalate (PET) was studied for the first time in a thermogravimetric analyzer (TGA) in the temperature range of 25–1000 °C with heating rates of 10–30–50 °C min−1 under a nitrogen atmosphere. The synergetic effects of co-pyrolysis of two different waste feedstock were investigated. The kinetic parameters are determined using the Flynn–Wall–Ozawa (FWO) model. The results revealed that the mean values of apparent activation energy for the decomposition of sheep manure into a recycled polyethylene terephthalate blend are determined to be 86.27, 241.53, and 234.51 kJ/mol, respectively. The results of the kinetic study on co-pyrolysis of sheep manure with plastics suggested that co-pyrolysis is a viable technique to produce green energy.

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Section: Resultsmentioning

confidence: 99%

Synergetic Effects during Co-Pyrolysis of Sheep Manure and Recycled Polyethylene Terephthalate

Akyürek

2021

Polymers

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“…The Starink method is an integral isoconversional method, which is refined from the FWO and KAS methods. 12,31 The model-fitting method (CR method is selected in this study) can calculate the kinetic parameters under the condition that the reaction model is known. The equations for these four methods are shown in Equations ( 3)- (6).…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…Thermogravimetric analysis (TGA) is a well-recognized classical method that can effectively and accurately investigate the thermal degradation behaviors of substances, and it can provide guidance for the recycling of solid waste. [12][13][14] In this article, nitrogen is selected as the filling gas for providing the inert atmosphere and thermogravimetric tests are carried out at different heating rates. By combining the experimental data with the kinetic methods (typical model-free method: Kissinger-Akahira-Sunose method, Flynn-Wall-Ozawa method, and Starink method; typical model-fitting method: Coats-Redfern method), 15 the activation energy corresponding to different conversion rates, the most suitable reaction model for the thermal degradation, and the pre-exponential factor are obtained.…”

Section: Introductionmentioning

confidence: 99%

“…Thermogravimetric analysis (TGA) is a well‐recognized classical method that can effectively and accurately investigate the thermal degradation behaviors of substances, and it can provide guidance for the recycling of solid waste 12–14 . In this article, nitrogen is selected as the filling gas for providing the inert atmosphere and thermogravimetric tests are carried out at different heating rates.…”

Section: Introductionmentioning

confidence: 99%

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Kinetic and thermodynamic study of micron waste polypropylene thermal degradation

Liu

Zhao

Chen

et al. 2023

Journal of Polymer Science

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How to properly dispose of waste polymers is a recognized challenge all over the world. Thermal degradation is currently recognized as a promising method for recycling polymer waste into fuels or products with high energy density without polluting the environment. In the present study, the thermal degradation characteristics, kinetics, thermodynamic parameters, and volatiles of a representative and extremely widely-used polymer (micron waste polypropylene [PP]) pyrolysis in nitrogen were investigated. The results indicate that the thermal degradation of micron waste polypropylene can be considered as a one-step reaction with merely one distinct peak on the reaction rate curves.The peak and average reaction rates decrease with the heating rate. The most appropriate reaction model to characterize the thermal degradation is g(α) = 1À(1Àα) 1/4 . The average values of activation energy and pre-exponential factor are 128.76 kJ/mol and 6.79 Â 10 9 min À1 , respectively. The kinetic parameters obtained in this study are all larger than those of PP with the particle size of millimeters or larger. The predicted thermogravimetric curves of thermal degradation are in good agreement with the experimental results.The changes of enthalpy, Gibbs free energy, and entropy show that the thermal degradation of micron waste polypropylene is a non-spontaneous and endothermic reaction. In addition, the concentrations of all volatiles in descending order are: H 2 O > Esters ( COO ) > CO 2 > Alkanes ( CH 3 ) > R 2 C CH 2 > Olefins (C C) > Alcohols (R OH) > Methylene group > CO.

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“…The g(a) function varies according to different reaction mechanisms. The g(a) for different mechanism models is listed in Table1 31,32.…”

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confidence: 99%

Degradation of tetrabromobisphenol A (TBBA) with calcium hydroxide: a thermo-kinetic analysis

et al. 2023

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Combustion Characteristics, Kinetics, and Thermodynamics of Pine Wood Through Thermogravimetric Analysis

Cited by 30 publications

References 57 publications

Synergetic Effects during Co-Pyrolysis of Sheep Manure and Recycled Polyethylene Terephthalate

Synergetic Effects during Co-Pyrolysis of Sheep Manure and Recycled Polyethylene Terephthalate

Kinetic and thermodynamic study of micron waste polypropylene thermal degradation

Degradation of tetrabromobisphenol A (TBBA) with calcium hydroxide: a thermo-kinetic analysis

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