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Abstract <p>The article presents the results of an experimental study of thermal oxidation characteristics and composition of the products of combustion of coal slurry and composite fuels based on coal slurry with addition of water and dispersed wood. The positive effect of the additives on the critical ignition temperature, burnout efficiency, and anthropogenic gas emissions is substantiated. The main mechanisms and schemes of formation and suppression of nitrogen oxides at different stages of thermal conversion are presented. The most effective conditions for reducing nitrogen oxide emissions are identified. Through a multicriteria analysis technique, the environmental, economic, and energy advantages of composite fuels over the primary coal slurry are demonstrated. It is established that the greatest potential belongs to dry fuel mixtures based on coal slurry and biomass with a mass fraction of 30 and 50%. Such fuels surpass coal slurry in the efficiency by 30–45%. With maximum emphasis on environmental indicators, composite liquid fuels have the greatest potential.</p>

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Processes of Formation and Suppression of Nitrogen Oxides during Combustion of Coal Slurry and Coal Slurry-Based Composite Fuels

  • 期刊论文

  • 发表日期：

    2026年2月1日

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  • G. V. Kuznetsov,
  • V. V. Dorokhov,
  • K. Yu. Vershinina,
  • P. A. Strizhak

摘要

Abstract

The article presents the results of an experimental study of thermal oxidation characteristics and composition of the products of combustion of coal slurry and composite fuels based on coal slurry with addition of water and dispersed wood. The positive effect of the additives on the critical ignition temperature, burnout efficiency, and anthropogenic gas emissions is substantiated. The main mechanisms and schemes of formation and suppression of nitrogen oxides at different stages of thermal conversion are presented. The most effective conditions for reducing nitrogen oxide emissions are identified. Through a multicriteria analysis technique, the environmental, economic, and energy advantages of composite fuels over the primary coal slurry are demonstrated. It is established that the greatest potential belongs to dry fuel mixtures based on coal slurry and biomass with a mass fraction of 30 and 50%. Such fuels surpass coal slurry in the efficiency by 30–45%. With maximum emphasis on environmental indicators, composite liquid fuels have the greatest potential.