Activation of Anthracite Combustion by Copper Acetate: Mechanism, Effect of Particle Size and Introduction Method Full article
| Journal |
International Journal of Coal Science & Technology
ISSN: 2095-8293 , E-ISSN: 2198-7823 |
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| Output data | Year: 2023, Volume: 10, Article number : 13, Pages count : 18 DOI: 10.1007/s40789-023-00573-w | ||||||
| Tags | Anthracite; Copper acetate; Fractional composition; Activation; Ignition; Combustion; Micro-explosions; Fuel underburning; Gas-phase products; Activation mechanism | ||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 21-79-00091 (121081800047-6) |
Abstract:
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.
Cite:
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 AN OpenAlex
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 AN OpenAlex
Dates:
| Submitted: | Mar 20, 2022 |
| Accepted: | Feb 10, 2023 |
| Published online: | Mar 10, 2023 |
| Published print: | Dec 1, 2023 |
Identifiers:
| Web of science: | WOS:000948458000001 |
| Scopus: | 2-s2.0-85149990800 |
| Elibrary: | 54110345 |
| Chemical Abstracts: | 2023:503440 |
| OpenAlex: | W4360980898 |