Kinetics of coal char gasification in a carbon dioxide medium; Russian Journal of Physical Chemistry B; Vol. 10, iss. 4

Kinetics of coal char gasification in a carbon dioxide medium; Russian Journal of Physical Chemistry B; Vol. 10, iss. 4

Bibliographic Details
Parent link:Russian Journal of Physical Chemistry B.— , 1982-
Vol. 10, iss. 4.— 2016.— [P. 576-581]
Main Author: Korotkikh A. G. Aleksandr Gennadievich
Corporate Authors: Национальный исследовательский Томский политехнический университет (ТПУ) Энергетический институт (ЭНИН) Кафедра атомных и тепловых электростанций (АТЭС), Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра технологии силикатов и наноматериалов (ТСН)
Other Authors: Slusarskiy (Slyusarsky) K. V. Konstantin Vitalievich, Ditts A. A. Aleksander Andreevich
Summary:Title screen
Solid fuel samples with different carbon contents are gasified by successively subjecting to pyrolysis in argon and oxidation in carbon dioxide at various temperatures to determine the rate of the chemical reactions and the activation energy required for simulating and optimizing the operation of gas generators. The samples were prepared from bituminous coal, lignite, and anthracite of the Kuznetsk and Kansk-Achinsk coal basins. The gasification of coal char samples in a carbon dioxide medium at 900–1200°C is analyzed by thermogravimetry. The temperature dependences of the weight change rate and gasification time of coal char samples are measured and used to calculate the preexponential factor and activation energy of the carbon oxidation reaction. It is found that, with increasing oxidizing medium temperature from 900 to 1200°C, the gasification time of the coal char samples obtained from anthracite and bituminous coal decrease 8- and 22-fold, respectively. A physicomathematical model of coal char gasification in a fixed bed, with the oxidizing gas diffusing through the ash layer formed, is proposed.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2016
Subjects:
электронный ресурс
труды учёных ТПУ
твердое топливо
газификация
термический анализ
углекислый газ
Online Access:http://dx.doi.org/10.1134/S1990793116040059
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=653330

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