Comparison of coal reactivityduring conversion into different oxidizing medium

Abstract

Acoal conversion process of different coal samples into three different types of oxidizing medium (argon, air and steam) were studied by means of thermogravimetry. Two coal types with different metamorphism degree (lignite and bituminous coal) were used. The experimental procedure was carried out in non-isothermal conditions in temperature range from 373 K to 1273 K with 20 K/min heating rate. Purge gas consisted of argon and oxidizer with volumetric ratio 1:24 and had 250 ml/min flow rate.The ignition and burnout indexes were calculated to evaluate sample reactivity at different oxidizing mediums. The highest reactivity coefficient values in same atmosphere were obtained for lignite. It was caused by higher particle special surface area and volatile matter content.

Original language	English
Article number	052005
Journal	Journal of Physics: Conference Series
Volume	754
Issue number	5
DOIs	https://doi.org/10.1088/1742-6596/754/5/052005
Publication status	Published - 27 Oct 2016

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1088/1742-6596/754/5/052005

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Korotkikh, A. G., Slyusarskiy, K. V., Larionov, K. B., & Osipov, V. I. (2016). Comparison of coal reactivityduring conversion into different oxidizing medium. Journal of Physics: Conference Series, 754(5), [052005]. https://doi.org/10.1088/1742-6596/754/5/052005

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abstract = "Acoal conversion process of different coal samples into three different types of oxidizing medium (argon, air and steam) were studied by means of thermogravimetry. Two coal types with different metamorphism degree (lignite and bituminous coal) were used. The experimental procedure was carried out in non-isothermal conditions in temperature range from 373 K to 1273 K with 20 K/min heating rate. Purge gas consisted of argon and oxidizer with volumetric ratio 1:24 and had 250 ml/min flow rate.The ignition and burnout indexes were calculated to evaluate sample reactivity at different oxidizing mediums. The highest reactivity coefficient values in same atmosphere were obtained for lignite. It was caused by higher particle special surface area and volatile matter content.",

author = "Korotkikh, {A. G.} and Slyusarskiy, {Konstantin Vitalievich} and Larionov, {Kirill Borisovich} and Osipov, {Vitaliy Igorevich}",

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AU - Korotkikh, A. G.

AU - Slyusarskiy, Konstantin Vitalievich

AU - Larionov, Kirill Borisovich

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AB - Acoal conversion process of different coal samples into three different types of oxidizing medium (argon, air and steam) were studied by means of thermogravimetry. Two coal types with different metamorphism degree (lignite and bituminous coal) were used. The experimental procedure was carried out in non-isothermal conditions in temperature range from 373 K to 1273 K with 20 K/min heating rate. Purge gas consisted of argon and oxidizer with volumetric ratio 1:24 and had 250 ml/min flow rate.The ignition and burnout indexes were calculated to evaluate sample reactivity at different oxidizing mediums. The highest reactivity coefficient values in same atmosphere were obtained for lignite. It was caused by higher particle special surface area and volatile matter content.

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