Kinetics of coal char gasification in a carbon dioxide medium; Russian Journal of Physical Chemistry B; Vol. 10, iss. 4
| Parent link: | Russian Journal of Physical Chemistry B.— , 1982- Vol. 10, iss. 4.— 2016.— [P. 576-581] |
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| Autore principale: | |
| Enti autori: | , |
| Altri autori: | , |
| Riassunto: | 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 |
| Lingua: | inglese |
| Pubblicazione: |
2016
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| Soggetti: | |
| Accesso online: | http://dx.doi.org/10.1134/S1990793116040059 |
| Natura: | Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=653330 |
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| 200 | 1 | |a Kinetics of coal char gasification in a carbon dioxide medium |f A. G. Korotkikh, K. V. Slusarskiy (Slyusarsky), A. A. Ditts | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 21 tit.] | ||
| 330 | |a 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. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Russian Journal of Physical Chemistry B |d 1982- | ||
| 463 | |t Vol. 10, iss. 4 |v [P. 576-581] |d 2016 | ||
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| 700 | 1 | |a Korotkikh |b A. G. |c specialist in the field of power engineering |c Professor of Tomsk Polytechnic University, Doctor of Physical and Mathematical Sciences |f 1976- |g Aleksandr Gennadievich |3 (RuTPU)RU\TPU\pers\34763 |9 18113 | |
| 701 | 1 | |a Slusarskiy (Slyusarsky) |b K. V. |g Konstantin Vitalievich |f 1990- |c specialist in the field of power engineering |c Associate Professor of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |3 (RuTPU)RU\TPU\pers\35634 |9 18803 | |
| 701 | 1 | |a Ditts |b A. A. |c Chemical Engineer |c Associate Professor of Tomsk Polytechnic University, Candidate of technical science |f 1981- |g Aleksander Andreevich |3 (RuTPU)RU\TPU\pers\31270 |9 15448 | |
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