Coal analysis using thermogravimetry

Serageldin, M.A.; Pan, Wei

doi:10.1016/0040-6031(84)87013-6

Cited by 48 publications

(13 citation statements)

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“…Thermogravimetric analysis measures the amount of mass change in a substance as a function of temperature or time under a controlled atmosphere [1,2,[35][36][37]. It is a useful technique for studying thermal behaviour of solid samples during pyrolysis and determining kinetics of the thermal events [38][39][40].…”

Section: Introductionmentioning

confidence: 99%

An investigation of thermal behaviour of biomass and coal during copyrolysis using thermogravimetric analysis

Vhathvarothai

Ness

Qian

2013

Int. J. Energy Res.

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SUMMARYThe biomass, coal and their blends at blending ratios (biomass : coal) of 95:5, 90:10, 85:15 and 80:20 were pyrolysed under a nitrogen environment at four different heating rates comprising 5°C, 10°C, 15°C and 20°C per minute to investigate their pyrolytic behaviour and to determine kinetic parameters of thermal decomposition through Kissinger's corrected kinetic equation using the thermogravimetric analysis results. In the kinetic analysis, the activation energy of both types of biomass was less than that of coal, being 168.7 kJ/mol (cypress wood chips), 164.6 kJ/mol (macadamia nut shells) and 199.6 kJ/mol (Australian bituminous coal). The activation energy of the blends of biomass and coal followed that of the weighted average of the individual samples in the blends. Char production of the samples and the blends was also analysed to observe any synergetic effects and thermal interaction between biomass and coal. The char production of the blends corresponded to the sum of the results for the individual samples with the coefficient of determination of 0.999. Thermal decomposition of biomass and coal appeared to take place independently, and thus, the activation energy of the blends can be calculated from that of the two components. There was no evidence for any significant synergetic effects and thermal interaction between either type of biomass and coal during copyrolysis. Copyright © 2013 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

An investigation of thermal behaviour of biomass and coal during copyrolysis using thermogravimetric analysis

Vhathvarothai

Ness

Qian

2013

Int. J. Energy Res.

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“…An endothermic reaction (dehydration, degassing) is the main reaction below 440°C. The exothermic processes existed in the devolatilization stage [24][25][26][27][28]. The pyrolysis heat corresponding to short heat transfer distance makes λ 1 ,coal/coke increase to be a sharp peak in the temperature range 440-520°C.…”

Section: Calculated Resultsmentioning

confidence: 99%

Lignite temperature distribution during low temperature carbonization process in an industrial width carbonization furnace

Wang

Zhang

et al. 2016

Fuel Processing Technology

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“…The rst region around 100°C is expected to be due to elimination of water molecules. The second region appearing in the temperature range 200 to 450°C is related to primary devolatization (Seragaldin and Pan, 1984), during which compounds containing carbon, hydrogen, and oxygen are released. The third region in the temperature range of 450 to 600°C is caused by the secondary devolatilization, during which mainly hydrogen is removed.…”

Section: Resultsmentioning

confidence: 99%

An Investigation into the Thermal Behavior of Coals

Kök¹

2002

Energy Sources

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Coal analysis using thermogravimetry

Cited by 48 publications

References 5 publications

An investigation of thermal behaviour of biomass and coal during copyrolysis using thermogravimetric analysis

An investigation of thermal behaviour of biomass and coal during copyrolysis using thermogravimetric analysis

Lignite temperature distribution during low temperature carbonization process in an industrial width carbonization furnace

An Investigation into the Thermal Behavior of Coals

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