Influence of the Heating Rate on the Activation of Coal and Lignite Oxidation by Copper Nitrate Научная публикация
Журнал |
Coke and Chemistry
ISSN: 1068-364X , E-ISSN: 1934-8398 |
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Вых. Данные | Год: 2020, Том: 63, Номер: 8, Страницы: 357-362 Страниц : 6 DOI: 10.3103/S1068364X20080037 | ||||||
Ключевые слова | activated oxidation; coal; copper nitrate; heating rate; lignite; mass-spectrometric analysis; thermogravimetric analysis | ||||||
Авторы |
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Организации |
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Информация о финансировании (2)
1 | Совет по грантам Президента Российской Федерации | НШ-2513.2020.8 |
2 | Министерство науки и высшего образования Российской Федерации | 075-00268-20-02 (0718-2020-0040)(АААА-А20-120070890064-3) |
Реферат:
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. © 2020, Allerton Press, Inc.
Библиографическая ссылка:
Larionov K.B.
, Mishakov I.V.
, Zenkov A.V.
, Slyusarskiy K.V.
, Gromov A.A.
Influence of the Heating Rate on the Activation of Coal and Lignite Oxidation by Copper Nitrate
Coke and Chemistry. 2020. V.63. N8. P.357-362. DOI: 10.3103/S1068364X20080037 WOS Scopus РИНЦ
Influence of the Heating Rate on the Activation of Coal and Lignite Oxidation by Copper Nitrate
Coke and Chemistry. 2020. V.63. N8. P.357-362. DOI: 10.3103/S1068364X20080037 WOS Scopus РИНЦ
Оригинальная:
Ларионов К.Б.
, Мишаков И.В.
, Зенков А.В.
, Слюсарский К.В.
, Громов А.А.
Интенсификация процесса окисления бурого и каменного углей активирующей добавкой нитрата меди при изменении скорости нагрева
Кокс и химия. 2020. №8. С.2-9. RSCI РИНЦ
Интенсификация процесса окисления бурого и каменного углей активирующей добавкой нитрата меди при изменении скорости нагрева
Кокс и химия. 2020. №8. С.2-9. RSCI РИНЦ
Даты:
Поступила в редакцию: | 8 апр. 2020 г. |
Принята к публикации: | 13 июн. 2020 г. |
Опубликована в печати: | 1 авг. 2020 г. |
Опубликована online: | 27 нояб. 2020 г. |
Идентификаторы БД:
Web of science | WOS:000593458300001 |
Scopus | 2-s2.0-85096926291 |
РИНЦ | 45117781 |
OpenAlex | W3107207434 |