Influence of petrochemicals on jet characteristics after coal-water fuel spraying

Application of liquid waste of industrial rubber goods (IRG) and waste car oil (WCO) as an additional component of coal-water fuel (CWF) was experimentally studied. It has been established that efficient introduction of liquid combustible components (LCC) into coal-water fuel prepared on the basis o...

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Bibliographic Details
Published in:Fuel processing technology 2021-07, Vol.218, p.106864, Article 106864
Main Authors: Gvozdyakov, Dmitriy, Zenkov, Andrey
Format: Article
Language:English
Subjects:
Calorific value
Coal
Coal-water slurry
Composition
Droplet
Flammability
Fuels
Liquid waste of IRG processing
Liquid wastes
Slurries
Spraying
Waste car oil
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Summary:Application of liquid waste of industrial rubber goods (IRG) and waste car oil (WCO) as an additional component of coal-water fuel (CWF) was experimentally studied. It has been established that efficient introduction of liquid combustible components (LCC) into coal-water fuel prepared on the basis of long-flame coal is possible, if their concentrations in the studied slurries do not exceed 8% by weight. A further increase in the concentration of the third component causes an increase in the fuels viscosity, which significantly worsens the jet characteristics after spraying. Increase in the jet spraying angle is about 25%, but a significant number of inhomogeneities and large fragments appear in its composition. Introduction of the third component into the composition of coal-water fuel allows increasing its calorific value by 9.9–31.1%. [Display omitted] •The jet spraying angle increases by 25%.•The efficiency of the third component introduction into the CWF composition was established (no more than 8% by weight).•The number of small droplets (less than 200 μm) is reduced by no more than 11%.•Spraying process is efficient at close values of the slurry and air pressure.
ISSN:0378-3820
1873-7188
DOI:10.1016/j.fuproc.2021.106864