Insight into master plots method for kinetic analysis of lignocellulosic biomass pyrolysis

Luo, Laipeng; Zhang, Zhiyi; Li, Chong; Nishu,; He, Fang; Zhang, Xingguang; Cai, Junmeng

doi:10.1016/j.energy.2021.121194

Cited by 60 publications

(7 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Figure S2 , the Arrhenius plots were calculated using three isoconversional methods. Given fitting results ( Table S3 ), the KAS method and the FWO method are more suitable than the Friedman method, which could be caused by the experimental data noise and numerical instability [ 41 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of Cd on Pyrolysis Velocity and Deoxygenation Characteristics of Rice Straw: Analogized with Cd-Impregnated Representative Biomass Components

Guo

Xie

et al. 2022

IJERPH

View full text Add to dashboard Cite

The pyrolysis characteristics of cadmium (Cd)-impregnated cellulose, hemicellulose, and lignin were studied to elucidate the pyrolysis velocity and deoxygenation characteristics of Cd-contaminated rice straw. The results show that Cd significantly affects the pyrolysis characteristics of a single biomass component. With a heating rate of 5 °C·min−1 and a Cd loading of 5%, the initial pyrolysis temperature of cellulose and hemicellulose decreases while that of lignin increases. The maximum pyrolysis velocity of cellulose, hemicellulose, and lignin is decreased by 36.6%, 12.4%, and 15.2%, respectively. Cd increases the pyrolysis activation energy of the three components and inhibits their deoxygenation. For the pyrolysis of Cd-contaminated rice straw, both the initial depolymerization temperature and the pyrolysis velocity of hemicellulose is reduced, while the pyrolysis velocity of cellulose is accordingly increased. When Cd loading amplifies to 0.1%, 1%, and 5%, the maximum pyrolysis velocity of hemicellulose is decreased by 7.2%, 10.5%, and 21.3%, while that of cellulose is increased by 8.4%, 62.1%, and 97.3%, respectively. Cd reduces the release of volatiles and gas from rice straw, such as CO2, CO, and oxygen-containing organics, which retains more oxygen and components in the solid fraction. This research suggested that Cd retards the pyrolysis velocity and deoxygenation of rice straw, being therefore beneficial to obtaining more biochar.

show abstract

Section: Resultsmentioning

confidence: 99%

Effect of Cd on Pyrolysis Velocity and Deoxygenation Characteristics of Rice Straw: Analogized with Cd-Impregnated Representative Biomass Components

Guo

Xie

et al. 2022

IJERPH

View full text Add to dashboard Cite

show abstract

“…With prior knowledge of activation energy, the reaction model, f (α), can be identified using the master-plots technique. ,,,,− The master plot is a characteristic curve that depends only on the reaction model. By choosing α = 0.5 as a reference point, g (α)/ g (0.5) in eq can be reduced to g ( α ) g ( 0.5 ) = p ( x ) p ( x 0.5 ) …”

Section: Methodsmentioning

confidence: 99%

“…It is simple to implement and does not require a complicated mathematical formulation. Therefore, it was widely used especially in the kinetic analysis of lignocellulosic biomass pyrolysis. − …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Kinetic Analysis of Devolatilized Diesel-Soot Oxidation Catalyzed by Ag/Al₂O₃ and Ag/CeO₂ Using Isoconversional and Master-Plots Techniques

Sawatmongkhon,

Promhuad,

Thaisruang

et al. 2023

ACS Omega

View full text Add to dashboard Cite

This work presented the kinetic analysis of devolatilized diesel-soot combustion accelerated by Ag/Al 2 O 3 and Ag/CeO 2 catalysts. Isoconversional and master-plots techniques were employed to estimate activation energy and identify the reaction model. The apparent activation energy of uncatalyzed soot oxidation was 101.85 kJ/mol, and it was reduced to 61.85 and 82.78 kJ/mol for the combustion catalyzed by Ag/Al 2 O 3 and Ag/CeO 2 , respectively. The reaction-order model, f(α) = (1− α)n, with n of 1.4, 1, and 1 showed the best fit for the uncatalyzed soot oxidation and soot oxidation catalyzed by Ag/Al 2 O 3 and Ag/CeO 2 , respectively. The proposed single-step reaction models were quite capable of reproducing experiments for the uncatalyzed soot oxidation and soot oxidation catalyzed by Ag/CeO 2 . In the presence of Ag/Al 2 O 3 , the oxidation rate at the first 20% of conversion was faster than the 1st-order reaction reflecting that the soot was rapidly oxidized by highly active species generated by Ag/Al 2 O 3 . The oxidation of the remaining soot closely followed the 1st-order reaction mechanism.

show abstract

“…The physio‐geometric mechanism followed by the solid‐state reaction can be analyzed using the model‐free master plot method. The master plot method is well reported as a suitable method to estimate the kinetic model for pyrolysis of natural materials that undergo complex reactions 18,19 . Vasudev et al 20 .…”

Section: Introductionmentioning

confidence: 99%

Thermochemical behavior and kinetics study of algae pyrolysis using iron oxide catalyst

Anantharaman,

Bangarraju,

Prakash

et al. 2023

Int J of Chemical Kinetics

View full text Add to dashboard Cite

The shift in emphasis from fossil fuel‐derived energy to waste‐to‐energy technologies has widened the possibility for environmentally sustainable methods such as pyrolysis. Algae collected from local sources that grow in wastewater using atmospheric CO2 is a potential feedstock for pyrolysis. Thus, the work focuses on studying the pyrolysis reaction of macroalgae sourced from regional sources in the presence of Fe2O3 catalyst using the thermogravimetric analysis, followed by kinetic analysis using iso‐conversional methods of Flynn–Wall–Ozawa (FWO), Kissinger–Akahira–Sunose (KAS), and Starink methods, and model free Kissinger method. The kinetic model was developed using master plot method. XRD analysis of the Fe2O3 catalyst confirms the presence of the maghemite and hematite phases in the sample. Based on the conversion profile, DTG trend, and kinetic parameter variation, the overall pyrolysis process can be divided into three different stages of dissociation reactions. The apparent activation energy calculated from different models varies in the range: stage I (∼268 kJ/mol), stage II (∼261 kJ/mol), and stage III (∼328 kJ/mol), respectively. Master plot analysis of the kinetic data confirms the best fit of the nucleation model (A2) to experimental data in stage II. Further, the thermodynamic properties of the reaction, such as change in enthalpy (ΔH), change in Gibbs free energy (ΔG), and change in entropy (ΔS) range between 206 and 405 kJ/mol, 189 and 651 kJ/mol, −450 and 27 J/mol/K, respectively, corroborates the complexity of the reaction. Kinetics and thermodynamic property analysis of complex reactions like pyrolysis is essential for pilot plant design.

show abstract

Insight into master plots method for kinetic analysis of lignocellulosic biomass pyrolysis

Cited by 60 publications

References 52 publications

Effect of Cd on Pyrolysis Velocity and Deoxygenation Characteristics of Rice Straw: Analogized with Cd-Impregnated Representative Biomass Components

Effect of Cd on Pyrolysis Velocity and Deoxygenation Characteristics of Rice Straw: Analogized with Cd-Impregnated Representative Biomass Components

Kinetic Analysis of Devolatilized Diesel-Soot Oxidation Catalyzed by Ag/Al₂O₃ and Ag/CeO₂ Using Isoconversional and Master-Plots Techniques

Thermochemical behavior and kinetics study of algae pyrolysis using iron oxide catalyst

Contact Info

Product

Resources

About

Insight into master plots method for kinetic analysis of lignocellulosic biomass pyrolysis

Cited by 60 publications

References 52 publications

Effect of Cd on Pyrolysis Velocity and Deoxygenation Characteristics of Rice Straw: Analogized with Cd-Impregnated Representative Biomass Components

Effect of Cd on Pyrolysis Velocity and Deoxygenation Characteristics of Rice Straw: Analogized with Cd-Impregnated Representative Biomass Components

Kinetic Analysis of Devolatilized Diesel-Soot Oxidation Catalyzed by Ag/Al2O3 and Ag/CeO2 Using Isoconversional and Master-Plots Techniques

Thermochemical behavior and kinetics study of algae pyrolysis using iron oxide catalyst

Contact Info

Product

Resources

About

Kinetic Analysis of Devolatilized Diesel-Soot Oxidation Catalyzed by Ag/Al₂O₃ and Ag/CeO₂ Using Isoconversional and Master-Plots Techniques