Non-isothermal kinetic analysis of the thermal decomposition of spruce wood in air atmosphere

Ondro, Tomáš; Vitázek, I.; Húlan, Tomáš; Lawson, Michael; Csáki, Štefan

doi:10.17221/115/2016-rae

Cited by 18 publications

(3 citation statements)

References 16 publications

(16 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Figure 10, the DTG curve showed the superposition of different reactions, however, the main decomposition region of the lignin was below 500 • C. According to a study by Dinesh Mohan et al [66], the reason for this phenomenon seems to be due to the decomposition of lignin in the temperature range of 280-500 • C. Besides, the similar DTG curve of woody biomass decomposition can be found in previous study. In particularly, according to the previous report by Ondro et al [67], the mass loss in the temperature range of 250-500 • C is ascribed to the combination of a total hemicellulose and cellulose decomposition with partial lignin decomposition, and the decomposition of remaining lignin and the combustion of char residues [68]. Aromatic compounds produced by char oxidation require higher temperatures to become all oxidation ashes [19,34].…”

Section: Thermal Characterization Of Interaction Between Cvp and Atsmentioning

confidence: 90%

“…Besides, the similar DTG curve of woody biomass decomposition can be found in previous study. In particularly, according to the previous report by Ondro et al [67], the mass loss in the temperature range of 250-500 °C is ascribed to the combination of a total hemicellulose and cellulose decomposition with partial lignin decomposition, and the decomposition of remaining lignin and the combustion of char residues [68]. Aromatic compounds produced by char oxidation require higher temperatures to become all oxidation ashes [19,34].…”

Section: Kinetic Analysis Of Csbsmentioning

confidence: 90%

See 1 more Smart Citation

Experimental Investigation on the Energy Consumption, Physical, and Thermal Properties of a Novel Pellet Fuel Made from Wood Residues with Microalgae as a Binder

et al. 2019

View full text Add to dashboard Cite

Co-pelletization of waste biomass and microalgae is an attractive option for using bioenergy efficiently. This work investigates the potential of microalgae as a binder to improve the energy consumption and physical and thermal properties of a novel pellet. Wood waste biomass was blended with microalgae in proportions of 15%, 30%, and 50% to investigate its properties using a single pelleting device and thermodynamic analysis. The results showed that, under the conditions of temperature (80–160 °C), pressure (120–200 MPa), and moisture content (6%–14%), blending microalgae can effectively increase the bulk density and mechanical durability of the pellets by 9%–36% and 0.7%–1.6%, respectively, and can significantly reduce the energy consumption of pelleting by 23.5%–40.4%. Blending microalgae can significantly reduce the energy consumption of pelleting by 23.5%–40.4%. Moreover, when the amount of Chlorella vulgaris powder (CVP) is 50%, a maximum bulk density (BD) of 1580.2 kg/m3, a durability (DU) of 98%, and a minimum energy consumption of 25.2 kJ/kg were obtained under the optimum conditions of temperature (120 °C), pressure (120 MPa), and moisture content (10%), respectively. Besides, the interaction between the microalgae and sawdust does exist, and their effect on the co-combustion process is inhibitive (0–300 °C) and accelerative (300–780 °C). When the amount of microalgae was 15%, the average activation energy of the pellet was a minimum value, which was 133.21 kJ/mol and 134.60 kJ/mol calculated by the Kissinger–Akahira–Sunose method and Ozawa–Flynn–Wall method, respectively. Therefore, the energy consumption, physical, and thermal properties of the novel pellet could be improved and meet the ISO standard (International Organization for Standardization of 17225, Geneva, Switzerland, 2016) by blending 15% of microalgae. Overall, the use of microalgae as a binder can indeed improve pellet quality, and it can be considered a significant way to utilize microalgae in the future.

show abstract

Section: Thermal Characterization Of Interaction Between Cvp and Atsmentioning

confidence: 90%

Section: Kinetic Analysis Of Csbsmentioning

confidence: 90%

Experimental Investigation on the Energy Consumption, Physical, and Thermal Properties of a Novel Pellet Fuel Made from Wood Residues with Microalgae as a Binder

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Furthermore, Ondro et al [36] also employed the Friedman, FWO, and KAS models to test the kinetic data obtained from air pyrolysis of spruce wood in a temperature range of 260-360 • C. Kinetic analysis resulted in apparent activation energies in the range of 168.6-196.5 kJ/mol, 179.8-188.1 kJ/mol, and 170.1-178.7 kJ/mol for Friedman, FWO, and KSA, respectively. In a similar study, Gao et al [37] applied Friedman and KSA. The activation energies of 244.25 and 238.07 kJ/mol of the date palm pyrolysis reaction were obtained using Friedman and KAS models, respectively.…”

Section: Kinetic Analysismentioning

confidence: 99%

Hydrogen-Rich Syngas and Biochar Production by Non-Catalytic Valorization of Date Palm Seeds

et al. 2022

View full text Add to dashboard Cite

Pyrolysis has been demonstrated to be a highly effective thermochemical process for converting complex biomaterials into biochar and syngas rich in hydrogen. The pyrolysis of mixed date palm seeds from Saudi Arabia was conducted using a fixed-bed pyrolyzer that was custom made for the purpose. The influence of the pyrolysis temperature (200–1000 °C) on the various physicochemical parameters of the date seed biochar generated through the pyrolysis process and the hydrogen-rich syngas was investigated. Proximate and ultimate analyses indicated a high carbon content in the lignocellulosic constituents such as cellulose, hemicellulose, and lignin. Using energy-dispersive X-ray (EDX) analysis, it was discovered that the elemental composition of biochar changes with the pyrolysis temperature. The date seeds pyrolyzed at 800 °C were found to have the maximum carbon concentration, with 97.99% of the total carbon content. The analysis of the biochar indicated a high concentration of carbon, as well as magnesium and potassium. There was a potential for the production of hydrogen-rich syngas, which increased with the pyrolysis temperature. At 1000 °C, the highest hydrogen and carbon monoxide compositions of 40 mol% and 32 mol%, respectively, were obtained. The kinetic data of the date seed pyrolysis were fitted using linearized model-free methods, such as Friedman, Flynn–Wall–Ozawa (FWO) and Kissinger–Akahira–Sunose (KAS), as well as non-linear methods such as Vyazovkin and advanced Vyazovkin. The activation energies obtained from Friedman, FWO, and KAS varied in the range of 30–75 kJ/mol, 30–65 kJ/mol, and 30–40 kJ/mol, respectively, while those of Vyazovkin and advanced Vyazovkin were found in the range of 25–30 kJ/mol, and 30–70 kJ/mol, respectively. The analysis showed that the FWO and KAS models show smaller variation compared to Friedman.

show abstract

Green synthesis of silane-assisted fluorescent carbon dots based on sanding dusts and its application in flame-retardant and anti-leaching wood materials

Zhang,

Peng,

Liang

et al. 2024

Journal of Cleaner Production

View full text Add to dashboard Cite

Non-isothermal kinetic analysis of the thermal decomposition of spruce wood in air atmosphere

Cited by 18 publications

References 16 publications

Experimental Investigation on the Energy Consumption, Physical, and Thermal Properties of a Novel Pellet Fuel Made from Wood Residues with Microalgae as a Binder

Experimental Investigation on the Energy Consumption, Physical, and Thermal Properties of a Novel Pellet Fuel Made from Wood Residues with Microalgae as a Binder

Hydrogen-Rich Syngas and Biochar Production by Non-Catalytic Valorization of Date Palm Seeds

Green synthesis of silane-assisted fluorescent carbon dots based on sanding dusts and its application in flame-retardant and anti-leaching wood materials

Contact Info

Product

Resources

About