Intensification of the Oxidation of Lignite and Coal by an Activating Additive of Fe(NO3)2 Научная публикация
| Журнал |
Solid Fuel Chemistry
ISSN: 0361-5219 , E-ISSN: 1934-8029 |
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| Вых. Данные | Год: 2019, Том: 53, Номер: 5, Страницы: 262-269 Страниц : 8 DOI: 10.3103/S0361521919050070 | ||||
| Ключевые слова | lignite bituminous coal initial oxidation temperature activated oxidation iron nitrate thermogravimetric analysis mass-spectrometric analysis | ||||
| Авторы |
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| Организации |
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Информация о финансировании (2)
| 1 | Федеральное агентство научных организаций России | 0303-2016-0014 |
| 2 | Министерство образования и науки Российской Федерации | 13.7644.2017/БЧ |
Реферат:
The oxidation of lignite and bituminous coal modified with an activating additive of Fe(NO3)2 (5 wt %) was investigated. Iron nitrate was applied by incipient wetness impregnation with the preliminary dissolution of Fe(NO3)2 in a water–alcohol solution with the volume ratio C2H5OH : H2O = 50 : 50. The reactivity of the samples was studied by thermogravimetric analysis in the oxidation mode at a heating rate of 2.5 K/min in a temperature range of 25–600°C at atmospheric pressure. It was established that the use of the activating additive decreased the initial temperature of intense oxidation (Δti = 77°C) and shifted the overall process to the low-temperature region. The qualitative analysis of the gas-phase products of bituminous coal oxidation was performed by mass spectrometry, and it was found that a decrease in the initial temperature of the release of volatile compounds was associated with the decomposition of iron nitrate. The activation energies of oxidation processes in the presence of iron nitrate were calculated using the Coats–Redfern method. A maximum decrease in Ea (from 74.0 to 64.4 kJ/mol) was observed in a modified sample of bituminous coal. A possible mechanism of the action of iron nitrate, which leads to the activation of the oxidation processes of the test coals, is discussed.
Библиографическая ссылка:
Larionov K.B.
, Mishakov I.V.
, Slyusarskii K.V.
, Gubin V.E.
, Vedyagin A.A.
Intensification of the Oxidation of Lignite and Coal by an Activating Additive of Fe(NO3)2
Solid Fuel Chemistry. 2019. V.53. N5. P.262-269. DOI: 10.3103/S0361521919050070 WOS Scopus РИНЦ CAPlus OpenAlex
Intensification of the Oxidation of Lignite and Coal by an Activating Additive of Fe(NO3)2
Solid Fuel Chemistry. 2019. V.53. N5. P.262-269. DOI: 10.3103/S0361521919050070 WOS Scopus РИНЦ CAPlus OpenAlex
Оригинальная:
Ларионов К.Б.
, Мишаков И.В.
, Слюсарский К.В.
, Губин В.Е.
, Ведягин А.А.
Интенсификация процесса окисления бурого и каменного углей активирующей добавкой Fe(NO3)2
Химия твердого топлива. 2019. №5. С.12-19. DOI: 10.1134/S0023117719050074 РИНЦ OpenAlex
Интенсификация процесса окисления бурого и каменного углей активирующей добавкой Fe(NO3)2
Химия твердого топлива. 2019. №5. С.12-19. DOI: 10.1134/S0023117719050074 РИНЦ OpenAlex
Даты:
| Поступила в редакцию: | 14 мар. 2019 г. |
| Принята к публикации: | 3 июн. 2019 г. |
| Опубликована в печати: | 1 сент. 2019 г. |
| Опубликована online: | 4 окт. 2019 г. |
Идентификаторы БД:
| Web of science: | WOS:000488928500002 |
| Scopus: | 2-s2.0-85073694465 |
| РИНЦ: | 41711591 |
| Chemical Abstracts: | 2019:1911428 |
| OpenAlex: | W2979071131 |