Combustion characteristics and kinetic analysis for pyrolysis char of torrefied pretreament from camellia shell

Qi, Riying; Xiang, Aihua; Wang, Mingfeng; Jiang, Enchen; Xiao, Heng; Tan, Xiongquan

doi:10.1007/s13399-022-02486-1

Cited by 2 publications

(3 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…21,22 However, few studies focus on the pyrolysis behaviors, reaction mechanisms, and thermodynamic analysis of torrefied biomass. 23 Therefore, in this work, a comprehensive investigation of physicochemical properties and pyrolysis characteristics of raw and torrefied Chinese fir (CF) was performed. Note that CF is a coniferous evergreen timber tree of the cypress family and is also an important commercial timber species in China.…”

Section: Introductionmentioning

confidence: 99%

“…They found that the values of Gibbs free energy change ranged from 216 to 325 kJ/mol. Other works were also dedicated to a better understanding of the biomass pyrolysis process. , However, few studies focus on the pyrolysis behaviors, reaction mechanisms, and thermodynamic analysis of torrefied biomass …”

Section: Introductionmentioning

confidence: 99%

“… 21 , 22 However, few studies focus on the pyrolysis behaviors, reaction mechanisms, and thermodynamic analysis of torrefied biomass. 23 …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pyrolysis Characteristics and Determination of Kinetic and Thermodynamic Parameters of Raw and Torrefied Chinese Fir

Patil,

Ku,

Vasudev

2023

ACS Omega

View full text Add to dashboard Cite

Torrefaction influences the structural and physicochemical properties of biomass, thus further altering its thermal degradation behavior. In this study, the pyrolysis characteristics, reaction kinetics, and thermodynamic parameters of raw and torrefied Chinese fir (CF) were investigated. The torrefaction was conducted at 220 °C (mild) and 280 °C (severe), the pyrolysis was performed from ambient temperature to 600 °C, and four different heating rates (i.e., 5, 15, 25, and 35 °C/min) were adopted. The activation energy for pyrolysis was estimated by adopting three isoconversional methods. The master-plot method was employed to analyze the reaction mechanism. Furthermore, thermodynamic parameters, i.e., the enthalpy change (ΔH), Gibbs free energy change (ΔG), and entropy change (ΔS), were calculated. The average activation energy increased with the torrefaction temperature, whose values estimated by using different methods ranged from 88.57 to 97.70, from 121.04 to 126.35, and from 167.51 to 179.74 kJ/mol for raw, mildly, and severely torrefied CF samples, respectively. A compensation effect between the activation energy and pre-exponential factor was observed for all samples. The degradation process was characterized as endothermic, involving the formation of activated complexes and requiring extra energy for torrefied samples.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pyrolysis Characteristics and Determination of Kinetic and Thermodynamic Parameters of Raw and Torrefied Chinese Fir

Patil,

Ku,

Vasudev

2023

ACS Omega

View full text Add to dashboard Cite

show abstract

An Investigation on the Thermal Degradation Kinetics of Wood-Polymer Composites Used in Interior Automobile Panels via Non-Isothermal Thermogravimetry

Özsin

2024

ijastech

View full text Add to dashboard Cite

Wood plastic composites (WPCs) offer a promising alternative for various automotive components, combining the benefits of wood and polymers such as lightness, strength, and sustainability. However, determining decomposition kinetics is challenging due to the intricate composition of WPCs. Therefore, this research work focused to analyze the relationship between the thermal degradation of WPCs, the degradation atmosphere, and the kinetics. The kinetic parameters were evaluated by Coats and Redfern method based on a set of TGA experiments under variable atmospheres (inert and oxidative) using 10 ℃/min heating rate. Thermograms demonstrated significant differences in the thermal properties of WPC when subjected to oxidative and inert atmospheres, despite two conditions having the same number of thermal degradation zones. It has been suggested that the process of thermal decomposition of WPC contains three weight loss segments under inert and oxidative atmosphere according to the Gaussian multi-peak fitting function. The Coats-Redfern method showed multi-step chemical kinetics and more accurately characterizes the decomposition behavior of WPC, attributing to its multi-compositional properties. Proposed reaction schemes had regression coefficients higher than 0.9809 to obtain reaction order, activation energy and pre-exponential factor.

show abstract

Combustion characteristics and kinetic analysis for pyrolysis char of torrefied pretreament from camellia shell

Cited by 2 publications

References 37 publications

Pyrolysis Characteristics and Determination of Kinetic and Thermodynamic Parameters of Raw and Torrefied Chinese Fir

Pyrolysis Characteristics and Determination of Kinetic and Thermodynamic Parameters of Raw and Torrefied Chinese Fir

An Investigation on the Thermal Degradation Kinetics of Wood-Polymer Composites Used in Interior Automobile Panels via Non-Isothermal Thermogravimetry

Contact Info

Product

Resources

About