Interactions of coal gangue and pine sawdust during combustion of their blends studied using differential thermogravimetric analysis

Yuan Yuan Zhang, Zhezi Zhang, Mingming Zhu, Fangqin Cheng, Dongke Zhang

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Abstract

© 2016 Elsevier Ltd. The interactions between coal gangue and pine sawdust during the combustion process were studied using thermogravimetric analysis. The effect of the blending ratio, oxygen concentration and heating rate on the weight loss (TG) and differential thermogravimetric (TGA) profiles was examined. The TG and DTG curves of the blends were not additives of those of the individual materials, suggesting that interactions between coal gangue and pine sawdust had occurred during the combustion, especially in the temperature range of 400-600 °C. Kinetic analysis confirmed that the combustion of coal gangue, pine sawdust and their blends was chemical reaction controlled. Further analysis revealed that the interactions between coal gangue and pine sawdust were primarily due to thermal effects rather than structural changes, with the thermal inertia of coal gangue dominating over the behaviour of the blends. The interactions decreased with decreasing the coal gangue ratio in the blend, oxygen concentration and heating rate.
Original languageEnglish
Pages (from-to)396-403
JournalBioresource Technology
Volume214
DOIs
Publication statusPublished - 2016

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Sawdust
Coal
gangue
Thermogravimetric analysis
combustion
coal
Heating rate
Heating
Hot Temperature
Oxygen
heating
oxygen
temperature effect
inertia
structural change
chemical reaction
Thermal effects
sawdust
analysis
Weight Loss

Cite this

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title = "Interactions of coal gangue and pine sawdust during combustion of their blends studied using differential thermogravimetric analysis",
abstract = "{\circledC} 2016 Elsevier Ltd. The interactions between coal gangue and pine sawdust during the combustion process were studied using thermogravimetric analysis. The effect of the blending ratio, oxygen concentration and heating rate on the weight loss (TG) and differential thermogravimetric (TGA) profiles was examined. The TG and DTG curves of the blends were not additives of those of the individual materials, suggesting that interactions between coal gangue and pine sawdust had occurred during the combustion, especially in the temperature range of 400-600 °C. Kinetic analysis confirmed that the combustion of coal gangue, pine sawdust and their blends was chemical reaction controlled. Further analysis revealed that the interactions between coal gangue and pine sawdust were primarily due to thermal effects rather than structural changes, with the thermal inertia of coal gangue dominating over the behaviour of the blends. The interactions decreased with decreasing the coal gangue ratio in the blend, oxygen concentration and heating rate.",
author = "Zhang, {Yuan Yuan} and Zhezi Zhang and Mingming Zhu and Fangqin Cheng and Dongke Zhang",
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TY - JOUR

T1 - Interactions of coal gangue and pine sawdust during combustion of their blends studied using differential thermogravimetric analysis

AU - Zhang, Yuan Yuan

AU - Zhang, Zhezi

AU - Zhu, Mingming

AU - Cheng, Fangqin

AU - Zhang, Dongke

PY - 2016

Y1 - 2016

N2 - © 2016 Elsevier Ltd. The interactions between coal gangue and pine sawdust during the combustion process were studied using thermogravimetric analysis. The effect of the blending ratio, oxygen concentration and heating rate on the weight loss (TG) and differential thermogravimetric (TGA) profiles was examined. The TG and DTG curves of the blends were not additives of those of the individual materials, suggesting that interactions between coal gangue and pine sawdust had occurred during the combustion, especially in the temperature range of 400-600 °C. Kinetic analysis confirmed that the combustion of coal gangue, pine sawdust and their blends was chemical reaction controlled. Further analysis revealed that the interactions between coal gangue and pine sawdust were primarily due to thermal effects rather than structural changes, with the thermal inertia of coal gangue dominating over the behaviour of the blends. The interactions decreased with decreasing the coal gangue ratio in the blend, oxygen concentration and heating rate.

AB - © 2016 Elsevier Ltd. The interactions between coal gangue and pine sawdust during the combustion process were studied using thermogravimetric analysis. The effect of the blending ratio, oxygen concentration and heating rate on the weight loss (TG) and differential thermogravimetric (TGA) profiles was examined. The TG and DTG curves of the blends were not additives of those of the individual materials, suggesting that interactions between coal gangue and pine sawdust had occurred during the combustion, especially in the temperature range of 400-600 °C. Kinetic analysis confirmed that the combustion of coal gangue, pine sawdust and their blends was chemical reaction controlled. Further analysis revealed that the interactions between coal gangue and pine sawdust were primarily due to thermal effects rather than structural changes, with the thermal inertia of coal gangue dominating over the behaviour of the blends. The interactions decreased with decreasing the coal gangue ratio in the blend, oxygen concentration and heating rate.

U2 - 10.1016/j.biortech.2016.04.125

DO - 10.1016/j.biortech.2016.04.125

M3 - Article

VL - 214

SP - 396

EP - 403

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JF - Bioresource Technology

SN - 0960-8524

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