The Physical Transformation of the Mineral Matter in Pulverized Coal Under Simulated Combustion Conditions
- 1 September 1977
- journal article
- research article
- Published by Taylor & Francis Ltd in Combustion Science and Technology
- Vol. 16 (3-6), 187-204
- https://doi.org/10.1080/00102207708946804
Abstract
The physical transformation of the mineral matter in coal has been studied in a laboratory furnace using size-graded, pulverized samples of a lignite and a bituminous coal. The mineral matter is originally distributed in micron-size inclusions in the coal particles. The paper illustrates how the final particle size distribution of the ash produced at combustion temperatures of 1250 to 1830K is determined by a combination of agglomeration of fused mineral matter, cenosphere formation due to gas evolution and vaporization and recondensation of volatile constituentsKeywords
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