Influence of the Heating Rate on the Activation of Coal and Lignite Oxidation by Copper Nitrate; Coke and Chemistry; Vol. 63, iss. 8
| Parent link: | Coke and Chemistry Vol. 63, iss. 8.— 2020.— [P. 2-9] |
|---|---|
| Autor Corporativo: | |
| Outros autores: | , , , , |
| Summary: | Title screen Adding copper nitrate Cu(NO3)2 is known to activate the oxidation of coal and lignite. In the present work, the change in its activating properties with increase in the heating rate is studied. The Cu(NO3)2 is first dissolved in a 50/50 (by volume) mixture of ethyl alcohol and water. Then it is applied to the fuel by steeping, to a content of 5 wt %. Activated oxidation is studied by thermal analysis, with different heating rates (2.5, 10, 20, and 40°C/min) in the temperature range 25–1000°C, at atmospheric pressure. With increase in heating rate, the catalytic effect of the additive is intensified: the initial (30–115°C) and final (85–180°C) oxidation temperatures fall, with increase in the maximum reaction rate. Mass-spectrometric analysis of the gaseous oxidation products shows that, in the presence of copper nitrate, increase in the heating rate leads to greater CO2 emission, with shorter oxidation time. The dependence of the activation energy on the degree of fuel conversion is determined by the Friedman method. The decrease in the mean activation energy when using Cu(NO3)2 is ~14 kJ/mol for lignite and ~35 kJ/mol for coal. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | inglés |
| Publicado: |
2020
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| Subjects: | |
| Acceso en liña: | https://doi.org/10.3103/S1068364X20080037 |
| Formato: | Electrónico Capítulo de libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664826 |
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| 200 | 1 | |a Influence of the Heating Rate on the Activation of Coal and Lignite Oxidation by Copper Nitrate |f K. B. Larionov, I. V. Mishakov, A. V. Zenkov [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 16 tit.] | ||
| 330 | |a Adding copper nitrate Cu(NO3)2 is known to activate the oxidation of coal and lignite. In the present work, the change in its activating properties with increase in the heating rate is studied. The Cu(NO3)2 is first dissolved in a 50/50 (by volume) mixture of ethyl alcohol and water. Then it is applied to the fuel by steeping, to a content of 5 wt %. Activated oxidation is studied by thermal analysis, with different heating rates (2.5, 10, 20, and 40°C/min) in the temperature range 25–1000°C, at atmospheric pressure. With increase in heating rate, the catalytic effect of the additive is intensified: the initial (30–115°C) and final (85–180°C) oxidation temperatures fall, with increase in the maximum reaction rate. Mass-spectrometric analysis of the gaseous oxidation products shows that, in the presence of copper nitrate, increase in the heating rate leads to greater CO2 emission, with shorter oxidation time. The dependence of the activation energy on the degree of fuel conversion is determined by the Friedman method. The decrease in the mean activation energy when using Cu(NO3)2 is ~14 kJ/mol for lignite and ~35 kJ/mol for coal. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Coke and Chemistry | ||
| 463 | |t Vol. 63, iss. 8 |v [P. 2-9] |d 2020 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a coal | |
| 610 | 1 | |a lignite | |
| 610 | 1 | |a heating rate | |
| 610 | 1 | |a activated oxidation | |
| 610 | 1 | |a copper nitrate | |
| 610 | 1 | |a thermogravimetric analysis | |
| 610 | 1 | |a mass-spectrometric analysis | |
| 610 | 1 | |a уголь | |
| 610 | 1 | |a окисление | |
| 610 | 1 | |a термогравиметрический анализ | |
| 610 | 1 | |a масс-спектрометрический анализ | |
| 701 | 1 | |a Larionov |b K. B. |c specialist in the field of power engineering |c technician of Tomsk Polytechnic University |f 1990- |g Kirill Borisovich |3 (RuTPU)RU\TPU\pers\35705 | |
| 701 | 1 | |a Mishakov |b I. V. |c chemist |c Associate Professor of Tomsk Polytechnic University, candidate of chemical sciences |f 1977- |g Iljya Vladimirovich |3 (RuTPU)RU\TPU\pers\36375 | |
| 701 | 1 | |a Zenkov |b A. V. |c engineer at Tomsk Polytechnic University, assistant |c specialist in the field of power engineering |f 1992- |g Andrey Viktorovich |3 (RuTPU)RU\TPU\pers\37816 | |
| 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 Gromov |b A. A. |c Chemical Engineer |c Professor of Tomsk Polytechnic University, Doctor of technical sciences |f 1975- |g Aleksandr Aleksandrovich |3 (RuTPU)RU\TPU\pers\33059 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа энергетики |b Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова) |3 (RuTPU)RU\TPU\col\23504 |
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| 856 | 4 | |u https://doi.org/10.3103/S1068364X20080037 | |
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