INFLUENCE OF AN ALKALI ADDITIVE ON THE MECHANICAL STRENGTH OF COAL BRIQUETTES

  • S.М. Rodivilov Institute of combustion problems, Bogenbay Batyr Str., 172, Almaty, Kazakhstan
  • Т.А. Ketegenov Institute of combustion problems, Bogenbay Batyr Str., 172, Almaty, Kazakhstan
  • К. Kamunur Institute of combustion problems, Bogenbay Batyr Str., 172, Almaty, Kazakhstan
  • S. Kalugin Al-Farabi Kazakh National University, 71 Al-Farabi ave., Almaty, Kazakhstan
  • А. Karagulanova Al-Farabi Kazakh National University, 71 Al-Farabi ave., Almaty, Kazakhstan
Keywords: coal briquettes, sodium hydroxide, adhesive composition, combustion rate, combustion catalysts.

Abstract

The purpose of this work was to study the effect of sodium hydroxide on the formation of the mechanical strength of coal briquettes based on brown coal subjected to low-temperature pyrolysis. Qualitative and quantitative analysis on the chromatographic complexes «Agilent 7890A/5975C» and «Chromos GC-1000» established the main mass loss of coal in the temperature range of 400-600 оC and determined the composition of volatile components. A scheme for the formation of a binder based on caustic soda and wheat bran starch is proposed, the optimal concentration of the binder is determined, and the mechanism for the formation of the strength of coal briquettes is shown.

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Published
2021-12-25
How to Cite
Rodivilov, S., KetegenovТ., KamunurК., Kalugin, S., & KaragulanovaА. (2021). INFLUENCE OF AN ALKALI ADDITIVE ON THE MECHANICAL STRENGTH OF COAL BRIQUETTES. Combustion and Plasma Chemistry, 19(4), 319-327. https://doi.org/10.18321/cpc470