A method for source apportionment in biomass/coal blends using thermogravimetric analysis

Lester, Edward; Gong, Mei; Thompson, A.

doi:10.1016/j.jaap.2007.01.010

Cited by 55 publications

(24 citation statements)

References 21 publications

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“…Key benefits of the TGA technique are its simplicity in utilisation and good repeatability. Thus, several studies have applied the TGA technique to investigate thermal decomposition profiles and kinetics during pyrolysis of various types of samples including biomass fuels, coals and their blends [20,[38][39][40][41][42][43][44][45][46]. Vuthaluru [39] observed thermal behaviours during copyrolysis of biomass fuels (wood waste and wheat straw) and coal using TGA.…”

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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“…Several TGA studies on combustion characteristics and kinetics of biomass and/or coal have been reported [35,36,38,[40][41][42][43][44][45][46]. Gil et al [38] studied thermal characteristics of biomass (pine sawdust), coal and their blends under combustion conditions using non-isothermal TGA.…”

Section: Introductionmentioning

confidence: 99%

An investigation of thermal behaviour of biomass and coal during co-combustion using thermogravimetric analysis (TGA)

Vhathvarothai

Ness

Qian

2013

Int. J. Energy Res.

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SUMMARY The thermal behaviour and kinetic analysis of biomass (cypress wood chips and macadamia nut shells) and Australian bituminous coal during combustion were studies using the thermogravimetric technique with four different heating rates under an air atmosphere. Each type of biomass was blended with coal at mass ratios (biomass:coal) of 95:5, 90:10, 85:15 and 80:20 to investigate the effect of coal as a supplementary fuel on thermal behaviour during the combustion process. Combustion of the individual samples and the blends took place in three steps comprising dehydration, devolatilisation and char oxidation. During co‐combustion, the thermal decomposition behaviour of the blends followed that of the weighted average of the individual samples in the blends. In kinetic analysis, 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. No evidence for any significant synergetic effects or thermal interaction was found between either type of biomass and the coal during co‐combustion based on the lack of deviation from expected behaviour of the blends. Copyright © 2013 John Wiley & Sons, Ltd.

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“…Several authors have reported non-additive behaviour [6][7][8][9][10][11] and previously [12] we have observed that the volatile products from coal and from biomass can interact with one another to produce a very different product profile compared to those of either fuel pyrolysed individually, which indicates the presence of labile species. In contrast, often only additive behaviour has been reported [11,[13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Small-scale co-utilisation of coal and biomass

Kubacki

Ross

Jones

et al. 2012

Fuel

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A method for source apportionment in biomass/coal blends using thermogravimetric analysis

Cited by 55 publications

References 21 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

An investigation of thermal behaviour of biomass and coal during co-combustion using thermogravimetric analysis (TGA)

Small-scale co-utilisation of coal and biomass

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