Experimental Investigation of the Formation of Polyaromatic Hydrocarbons and Soot during the Pyrolysis of Ethylene with the Addition of Dimethyl and Diethyl Ethers and Dimethoxymethane

This paper presents the results of studies of the formation of polyaromatic hydrocarbons (PAHs) and carbon nanoparticles during the pyrolysis of ethylene mixtures with the addition of linear ethers: dimethyl ether CH 3 OCH 3  (DME), diethyl ether C 2 H 5 OC 2 H 5  (DEE), and dimethoxymethane CH 3 OC...

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Bibliographic Details
Published in:Combustion, explosion, and shock waves explosion, and shock waves, 2023-04, Vol.59 (2), p.185-198
Main Authors: Drakon, A. V., Eremin, A. V., Zolotarenko, V. N., Korshunova, M. R., Mikheeva, E. Yu
Format: Article
Language:English
Subjects:
Additives
Carbon
Classical and Continuum Physics
Classical Mechanics
Control
Diethyl ether
Dimethyl ether
Dynamical Systems
Engineering
Ethers
Ethylene
Laser induced fluorescence
Nanoparticles
Physical Chemistry
Physics
Physics and Astronomy
Polycyclic aromatic hydrocarbons
Pyrolysis
Shock wave reflection
Soot
Vibration
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Summary:This paper presents the results of studies of the formation of polyaromatic hydrocarbons (PAHs) and carbon nanoparticles during the pyrolysis of ethylene mixtures with the addition of linear ethers: dimethyl ether CH 3 OCH 3  (DME), diethyl ether C 2 H 5 OC 2 H 5  (DEE), and dimethoxymethane CH 3 OCH 2 OCH 3  (DMM). The studies were carried out behind reflected shock waves at temperatures of 1650–2550 K and pressures of 2.7–4.1 atm using optical diagnostic methods: laser-induced fluorescence (LIF) and laser extinction. These additives were found to accelerate the formation of PAHs and carbon nanoparticles. Kinetic modeling results show that this effect is due to the presence of methyl and ethyl groups in the molecules, which promote the formation of PAHs and soot.
ISSN:0010-5082
1573-8345
DOI:10.1134/S0010508223020090