Intensification of bituminous coal and lignite oxidation by copper-based activating additives; International Journal of Coal Science and Technology; Vol. 8, iss. 1

Intensification of bituminous coal and lignite oxidation by copper-based activating additives; International Journal of Coal Science and Technology; Vol. 8, iss. 1

Dades bibliogràfiques
Parent link:	International Journal of Coal Science and Technology Vol. 8, iss. 1.— 2021.— [P. 141-153]
Autor corporatiu:	Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
Altres autors:	Larionov K. B. Kirill Borisovich, Mishakov I. V. Iljya Vladimirovich, Slusarskiy (Slyusarsky) K. V. Konstantin Vitalievich, Vedyagin A. A. Aleksey Anatolievich
Sumari:	Title screen The oxidation of lignite and bituminous coal samples modified by 5 wt% (in terms of dry salt) addition of copper salts Cu(NO3)2, CuSO4, and Cu(CH3COO)2 was studied. The samples’ reactivity was studied by thermogravimetry within a temperature range of 45–600 °C at a heating rate of 2.5 °C/min in an oxidizing environment. The introduction of activating additives has resulted in a significant decrease in the temperature of intense oxidation onset (?Ti?=?20/94 °C), in a reduction in the sample residence time in the volatile matter release region (?te?=?2/22 min) and the total duration of the coal combustible mass oxidation (?tf?=?8/14 min). The Friedman method was used to calculate the activation energy values for the oxidation process of the modified samples. The maximum change in activation energy values was observed for the bituminous coal sample. The possible mechanism behind the action of the copper-salt additives, which activate the oxidation of lignite and bituminous coal, is discussed. According to the data of mass spectrometric analysis, the concentration of NOx in the reaction products decreases as the temperature of the activated oxidation process is shifted towards the low-temperature region. Режим доступа: по договору с организацией-держателем ресурса
Idioma:	anglès
Publicat:	2021
Matèries:	электронный ресурс труды учёных ТПУ coal activated oxidation copper nitrate copper sulfate copper acetate уголь окисление реактивность нитраты
Accés en línia:	https://doi.org/10.1007/s40789-020-00350-z
Format:	Electrònic Capítol de llibre
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664827

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