Kinetic analysis of wheat straw pyrolysis using isoconversional methods

Cai, Junmeng; Bi, Lianshan

doi:10.1007/s10973-009-0325-8

Cited by 88 publications

(40 citation statements)

References 27 publications

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“…It has been found that for thermal decomposition reactions, the kinetic parameters, such as the pre-exponential factor A and the activation energy E, exhibit the following relationship (Cai and Bi 2009;Li et al 2011):…”

Section: Kinetic Compensation Effect In Pyrolysis Of MLmentioning

confidence: 99%

Thermal decomposition characteristics and kinetics of methyl linoleate under nitrogen and oxygen atmospheres

et al. 2015

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The thermal decomposition characteristics of methyl linoleate (ML) under nitrogen and oxygen atmospheres were investigated, using a thermogravimetric analyzer at a heating rate of 10°C/min from room temperature to 600°C. Furthermore, the pyrolytic and kinetic characteristics of ML at different heating rates were studied. The results showed that the thermal decomposition characteristics of ML under nitrogen and oxygen atmospheres were macroscopically similar, although ML exhibited relatively lower thermal stability under an oxygen atmosphere than under a nitrogen atmosphere. The initial decomposition temperature, the maximum weight loss temperature, the peak decomposition temperature, and the rate of maximum weight loss of ML under an oxygen atmosphere were much lower than those under a nitrogen atmosphere and increased with increasing heating rates under either oxygen or nitrogen atmosphere. In addition, the kinetic characteristics of thermal decomposition of ML were elucidated based on the experimental results and by the multiple linear regression method. The activation energy, pre-exponential factor, reaction order, and the kinetic equation for thermal decomposition of ML were obtained. The comparison of experimental and calculated data and the analysis of statistical errors of pyrolysis ratios demonstrated that the kinetic model was reliable for pyrolysis of ML with relative errors of about 1 %. Finally, the kinetic compensation effect between the preexponential factors and the activation energy in the pyrolysis of ML was also confirmed.

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Section: Kinetic Compensation Effect In Pyrolysis Of MLmentioning

confidence: 99%

Thermal decomposition characteristics and kinetics of methyl linoleate under nitrogen and oxygen atmospheres

et al. 2015

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“…Kinetic data from thermogravimetry analysis are not only useful for understanding the thermal degradation processes and mechanisms, but also can be used as input parameters for a thermal degradation reaction system. The extensive literature has been published on the experiments of great range of biomass, such as woods [5], agriculture residues [6], and municipal solid wastes [7]. However, to the author's knowledge, there is little information available about the pyrolysis kinetics of Jerusalem artichoke tubers.…”

Section: Introductionmentioning

confidence: 99%

Thermogravimetric and kinetic analysis of energy crop Jerusalem artichoke using the distributed activation energy model

Wang

et al. 2013

J Therm Anal Calorim

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Jerusalem artichoke has great potential as future feedstock for bioenergy production because of its high tuber yield (up to 90 t ha -1 ), appropriate biomass characteristics, low input demand, and positive environmental impact. The pyrolytic and kinetic characteristics of Jerusalem artichoke tubers were analyzed at heating rates of 5, 10, 20 and 30°C min -1 . TG and DTG curves in an inert (nitrogen) atmosphere suggested that there were three distinct stages of mass loss and the major loss occurs between about 190-380°C. Heating rate brought a lateral shift toward right in the temperature. And, it not only affects the temperature at which the highest mass loss rate reached, but also affect the maximum rate of mass loss. The distributed activation energy model (DAEM) was used to study the pyrolysis kinetics and provided reasonable fits to the experimental data. The activation energy (E) of tubers ranged from 146.40 to 232.45 kJ mol -1 , and the frequency factor (A) changed greatly corresponding to E values at different mass conversion.

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“…Moreover, its energy utilization can create less environmental pollution than fossil fuels do [1][2][3][4]. Macro-algae seem to be a particularly promising biomass because of its higher photosynthetic efficiency, easy harvesting, higher biomass production, and faster growth than micro-algae.…”

Section: Introductionmentioning

confidence: 99%

Thermogravimetry study of the pyrolytic characteristics and kinetics of macro-algae Macrocystis pyrifera residue

Zhao

Huaxiao

Dong

et al. 2011

J Therm Anal Calorim

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Macrocystis pyrifera is one important marine macro-algae, while its residues produced by industrial alginate extraction is a hot potato. To figure out whether its residue is suitable for pyrolysis for biofuel, the pyrolytic characteristics and kinetics of macro-algae M. pyrifera residue was investigated using thermogravimetric method from 50 to 800°C in an inert argon atmosphere at different heating rates of 5, 10, 20, and 30°C min -1 . The activation energy and pre-exponential factor was calculated by FlynnWall-Ozawa, Kissinger-Akahira-Sunose, and Popescu methods, and the kinetic mechanism was deduced by Popescu method. The results showed that the primary devolatilization stage of M. pyrifera residue can be described by. The average activation energy of M. pyrifera residue was 222.4 kJ mol -1 . The results suggested that the experimental results and kinetic parameters provided useful information for the design of pyrolytic processing system using M. pyrifera residue as feedstock.

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Kinetic analysis of wheat straw pyrolysis using isoconversional methods

Cited by 88 publications

References 27 publications

Thermal decomposition characteristics and kinetics of methyl linoleate under nitrogen and oxygen atmospheres

Thermal decomposition characteristics and kinetics of methyl linoleate under nitrogen and oxygen atmospheres

Thermogravimetric and kinetic analysis of energy crop Jerusalem artichoke using the distributed activation energy model

Thermogravimetry study of the pyrolytic characteristics and kinetics of macro-algae Macrocystis pyrifera residue

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