Pyrolysis of Coal by Nanosecond Laser Pulses Full article
Journal |
Coke and Chemistry
ISSN: 1068-364X , E-ISSN: 1934-8398 |
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Output data | Year: 2023, Volume: 66, Number: 9, Pages: 449–457 Pages count : 9 DOI: 10.3103/S1068364X23701119 | ||||
Tags | coal, pellets, pyrolysis, laser, nanosecond pulses, gaseous products, mass spectrometry | ||||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Science Foundation | 22-13-20041 (122053100142-1) |
Abstract:
The action of nanosecond laser pulses (wavelength 532 nm, pulse length 14 ns, pulse repetition rate 6 Hz, energy density of laser radiation 0.2–0.6 J/cm2) in G and Zh coal pellets is investigated, in an argon atmosphere. The gaseous products of sample pyrolysis include H2, CH4, C2H2, CO, and CO2. The content of the gaseous components is determined as a function of the laser energy density. In the range 0.2–0.4 J/cm2, the volume of flammable gases formed (referred to the mass loss of the sample) increases; at higher energy densities, practically no change in volume is observed. The gross calorific value of the flammable gases increases linearly from ~8–10 to 19 MJ/m3 with increase in energy density of the laser radiation from 0.2 to 0.6 J/cm2.
A nanosecond pulse of energy density more than 0.4 J/cm2 results in intense ablation of the pellets containing 0.005 wt % polyvinyl alcohol. The coal pellets that contain no binder break down under the action of a nanosecond laser pulse of energy density exceeding 0.2 J/cm2.
Cite:
Kraft Y.V.
, Aduev B.P.
, Nelubina N.V.
, Volkov V.D.
, Ismagilov Z.R.
Pyrolysis of Coal by Nanosecond Laser Pulses
Coke and Chemistry. 2023. V.66. N9. P.449–457. DOI: 10.3103/S1068364X23701119 WOS Scopus
Pyrolysis of Coal by Nanosecond Laser Pulses
Coke and Chemistry. 2023. V.66. N9. P.449–457. DOI: 10.3103/S1068364X23701119 WOS Scopus
Original:
Крафт Я.В.
, Адуев Б.П.
, Нелюбина Н.В.
, Волков В.Д.
, Исмагилов З.Р.
Пиролиз каменных углей под воздействием наносекундного лазерного излучения
Кокс и химия. 2023. №9. С.8-17. DOI: 10.52351/00232815_2023_03_8 РИНЦ
Пиролиз каменных углей под воздействием наносекундного лазерного излучения
Кокс и химия. 2023. №9. С.8-17. DOI: 10.52351/00232815_2023_03_8 РИНЦ
Dates:
Submitted: | Aug 23, 2023 |
Accepted: | Sep 15, 2023 |
Published print: | Dec 25, 2023 |
Published online: | Dec 25, 2023 |
Identifiers:
Web of science | WOS:001131568900001 |
Scopus | 2-s2.0-85180406492 |
Chemical Abstracts | 2024:37374 |
OpenAlex | W4390190999 |
Citing:
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