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The main chemical reactions during the initial stage of low-temperature coal oxidation in air are discussed. The contribution of these reactions to the overall oxidative process is determined by the coal structure. Water molecules may accelerate coal oxidation by the formation of aldehyde...
Four macropetrographic types of long-flame coal are studied. Their thermal decomposition and the porous structure of the resulting semicoke are discussed.
Improving the mixing of batch components in the charge significantly improves their wear resistance but does not affect the crushability, on account of the different disintegration processes of the coke pieces.
The use of organic waste from the coke and petrochemical industry as binder in coal batch is reviewed. A classification of these additives in terms of the source is proposed.
Boron Trioxide (B2O3) was adsorbed on coke through boric acid (H3BO3) solution, of which the concentration was 0.1%, 0.5%, 1.0%, 2.0% respectively. The existence form and distribution of boron (B) adsorbed on coke were characterized by X-Ray powder diffraction (XRD), X-ray photoelectron...
A new gas-distributor design is proposed for dry-slaking chambers. Study of the flow structure on a physical model shows that the new design ensures more uniform inert-gas distribution over the chamber volume.
The sorption capacity of multilayer carbon nanotubes that have been synthesized by the mechanical activation of amorphous carbon produced from cotton is investigated. The sorptional efficiency of the carbon nanotubes depends on the storage time. The use of carbon materials derived from cotton as...
The use of sulfolane and dimethyl sulfoxide in liquid extraction and extractive rectification is considered.
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