Activation of Anthracite Combustion by Copper Acetate: Mechanism, Effect of Particle Size and Introduction Method | Sciact - CRIS-система Института катализа

Activation of Anthracite Combustion by Copper Acetate: Mechanism, Effect of Particle Size and Introduction Method Научная публикация

Журнал

International Journal of Coal Science & Technology
ISSN: 2095-8293 , E-ISSN: 2198-7823

Вых. Данные

Год: 2023, Том: 10, Номер статьи : 13, Страниц : 18 DOI: 10.1007/s40789-023-00573-w

Ключевые слова

Anthracite; Copper acetate; Fractional composition; Activation; Ignition; Combustion; Micro-explosions; Fuel underburning; Gas-phase products; Activation mechanism

Авторы

Larionov K.B. ^1,2 , Mishakov I.V. ³ , Berezikov N.I. ^1,2 , Gorshkov A.S. ^1,2 , Kaltaev A.Zh. ¹ , Slyusarskiy K.V. ^1,2 , Ruban A.S. ¹ , Vedyagin A.A. ³

Организации

1	Energy Engineering School, National Research Tomsk Polytechnic University, Lenin Ave., 30, Tomsk 634050, Russia
2	Gorbachev Kuzbass State Technical University, Kemerovo 650000, Russia
3	Boreskov Institute of Catalysis SB RAS, Novosibirsk 630090, Russia

Информация о финансировании (1)

Российский научный фонд

21-79-00091 (121081800047-6)

This paper addressed the effect of copper acetate on the combustion characteristics of anthracite depending on the fractional composition of fuel and additive introduction method. Anthracite was impregnated with 5 wt% of Cu(CH3COO)2 by mechanical mixing and incipient wetness impregnation. Four anthracite samples of different fraction with d < 0.1 mm, d = 0.1–0.5 mm, d = 0.5–1.0 mm, and d = 1.0–2.0 mm were compared. According to EDX mapping, incipient wetness impregnation provides a higher dispersion of the additive and its uniform distribution in the sample. The ignition and combustion characteristics of the modified anthracite samples were studied by thermal analysis and high-speed video recording of the processes in a combustion chamber (at heating medium temperature of 800 °C). It was found that copper acetate increases anthracite reactivity, which was evidenced by decreased onset temperature of combustion (ΔTi) by 35–190 °C and reduced ignition delay time (Δτi) by 2.1–5.4 s. Copper acetate reduces fuel underburning (on average by 70%) in the ash residue of anthracite and decreases the amount of CO and NOx in gas-phase products (on average by 18.5% and 20.8%, respectively). The mechanism for activation of anthracite combustion by copper acetate is proposed.

Larionov K.B. , Mishakov I.V. , Berezikov N.I. , Gorshkov A.S. , Kaltaev A.Z. , Slyusarskiy K.V. , Ruban A.S. , Vedyagin A.A.
Activation of Anthracite Combustion by Copper Acetate: Mechanism, Effect of Particle Size and Introduction Method
International Journal of Coal Science & Technology. 2023. V.10. 13 :1-18. DOI: 10.1007/s40789-023-00573-w WOS Scopus РИНЦ CAPlus OpenAlex

Поступила в редакцию:	20 мар. 2022 г.
Принята к публикации:	10 февр. 2023 г.
Опубликована online:	10 мар. 2023 г.
Опубликована в печати:	1 дек. 2023 г.

Web of science:	WOS:000948458000001
Scopus:	2-s2.0-85149990800
РИНЦ:	54110345
Chemical Abstracts:	2023:503440
OpenAlex:	W4360980898

БД	Цитирований
Scopus	5
Web of science	4
РИНЦ	4
OpenAlex	5