Thermogravimetric analysis and kinetics modeling of isothermal carbonization of olive wood in inert atmosphere

Grioui, Najla; Halouani, Kamel; Zoulalian, André; Halouani, Foued

doi:10.1016/j.tca.2005.09.018

Cited by 50 publications

(39 citation statements)

References 20 publications

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“…These pseudo components noted A 1 , A 2 and A 3 can not be exactly identified as hemicelluloses, cellulose and lignin material [Grioui et al 2006]. The mass fractions of these three pseudo components are respectively α 1 , α 2 and α 3 = 1 -α 1 -α 2 .…”

Section: Carbonized Olive Woodmentioning

confidence: 97%

“…For this reason, to try to interpret correctly the porosimetry measurements and the high variation observed at 548 K, we use a kinetic model developed in a previous article [Grioui et al 2006].…”

Section: Carbonized Olive Woodmentioning

confidence: 99%

“…It should be underlined that the formation of some macropores during the increase of the temperature is certainly due to the breaking of the cell wall by the mercury penetration. The weakness of the cell wall is observed when the degradation rate of the three pseudo components of wood, the notion of which has been introduced by the authors in a previous article [Grioui et al 2006], becomes high which corresponds to the temperature range between 523 K and 548 K. …”

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confidence: 99%

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Experimental Study of Thermal Effect on Olive Wood Porous Structure During Carbonization

Grioui¹,

Halouani²,

Zoulalian³

et al. 2007

Maderas, Cienc. tecnol.

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The study presented in this paper is an investigation on the porosity changes induced by the carbonization of Tunisian olive wood. The porosity is measured by mercury porosimetry. The experimental results show that the total porosity of carbonized wood increases with the temperature. It should be underlined that the formation of some macropores during the increase of the temperature is certainly due to the breaking of the cell wall by the mercury penetration. The weakness of the cell wall is observed when the degradation rate of the three pseudo components of wood, the notion of which has been introduced by the authors in a previous article [Grioui et al. 2006], becomes high which corresponds to the temperature range between 523 K and 548 K.

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Section: Carbonized Olive Woodmentioning

confidence: 97%

Section: Carbonized Olive Woodmentioning

confidence: 99%

mentioning

confidence: 99%

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Experimental Study of Thermal Effect on Olive Wood Porous Structure During Carbonization

Grioui¹,

Halouani²,

Zoulalian³

et al. 2007

Maderas, Cienc. tecnol.

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“…Several researches [57][58][59][60] carried out non-isothermal kinetic analysis of the pyrolysis of olive mill solid waste in the heating rate range of 2-50 K/min. It was reported that the apparent activation energy in the 0.1-0.8 conversion interval ranged from 162-215 KJ/mol.…”

Section: Variation Of Apparent Activation Energy Of Omsw and Comwwmentioning

confidence: 99%

Utilization of Starink Approach and Avrami Theory to Evaluate the Kinetic Parameters of the Pyrolysis of Olive Mill Solid Waste and Olive Mill Wastewater

My¹,

H²,

L³

et al. 2017

J Adv Chem Eng

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Journal of Advanced Chemical Engineering AbstractIn this study, the thermal behavior of two olive mill wastes samples such as olive mill solid waste (OMSW) and concentrated olive mill wastewater (COMWW) was examined at different heating rates ranging from 5 to 50 K/min in inert atmosphere using the technique of thermo gravimetric analysis. Avrami theory and iso-conversional Starink approach were used in this work to evaluate the kinetic parameters, including apparent activation energy (E a ) and reaction order (n). For the range of conversion degree investigated (20-80%), the values of apparent activation energy for olive mill solid waste (OMSW) were 147.51-158.79 KJ/mol and 200.13-212.51 KJ/mol for hemicellulose and cellulose respectively. Whilst the apparent activation energy of concentrated olive mill wastewater (COMWW) varied from 128.41 to 138.85 KJ/mol and from 201.3 to 226.67 KJ/mol for hemicellulose and cellulose respectively. With varied temperature (515-753 K), the corresponding values of reaction order was increased from 0.1004 and 0.1061 to 0.1787 and 0.2886, along with a decrease to 0.1220 and 0.1889 for OMSW and COMWW respectively.

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“…It has been used to determine the physical and chemical properties of various compounds, polymers, geological materials and coals (1)(2)(3)(4)(5)(6)(7) . Further, various reversible and non-reversible reactions (8,9) , the decomposition of molecules absorbed on a surface, phase transitions etc.…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis of some Imidazolinone Derivatives

Baluja

Kachhadia

2015

ILCPA

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Thermal analysis of some imidazolinone derivatives derived from 1, N-phenyl-3-p-nitrophenyl-4-formyl pyrazole, have been carried out by TGA technique. From these thermograms, various kinetic parameters such as order of degradation (n), energy of activation (E), frequency factor (A) and entropy change (∆S) have been evaluated. Further, thermal stability of imidazolinone derivatives have been determined, which is found to depend on the type of substituent present in the compounds.

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Thermogravimetric analysis and kinetics modeling of isothermal carbonization of olive wood in inert atmosphere

Cited by 50 publications

References 20 publications

Experimental Study of Thermal Effect on Olive Wood Porous Structure During Carbonization

Experimental Study of Thermal Effect on Olive Wood Porous Structure During Carbonization

Utilization of Starink Approach and Avrami Theory to Evaluate the Kinetic Parameters of the Pyrolysis of Olive Mill Solid Waste and Olive Mill Wastewater

Thermal Analysis of some Imidazolinone Derivatives

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