September 10, 2025EnergiesOpen Access

Study on the Influence of Different Particle Sizes of Kaolin Blending with Zhundong Coal Combustion on the Adsorption of Alkali Metal Sodium and Ash Fusion Characteristics

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Discussion

Study reveals kaolin blending enhances sodium adsorption and ash fusion characteristics, indicating particle size effects.

Sodium retention increases with smaller kaolin particle sizes, reaching 38.54% with 20–63 µm kaolin.
Combustion tests showed a significant increase in ash fusion temperatures with blended kaolin, highlighting its importance.
The study involved sodium capture experiments and ash fusion temperature tests on Zhundong coal.
Findings suggest optimized kaolin particle size can improve coal combustion efficiency and reduce slagging.

Liu et al. (2025) studied this question.

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