Coal is primarily used to produce electricity and heat through combustion; however, it can also be converted into coke for use as a smokeless fuel or as a reducing agent for smelting iron ore. Another by-product of coal combustion is coal fly ash, which finds use in Portland cement and other construction materials. Coal can also be liquidified and gasified to produce liquids and gaseous fuels as well as feedstock for the chemical industry.

Malvern Instruments analytical solutions can be used to;

  • Improve coal preparation procedures and handling.
  • Optimize crushing, milling and separation processes.
  • Ensure compliance with regulatory guidelines.
  • Improve combustion efficiency.
  • Monitor quality.
  • Stabilize and characterize coal slurries and suspensions.
  • Study carbonization and liquefaction processes.

Coal water slurries are becoming increasingly important as liquid fuel alternatives and for efficient transport of coal materials. For such applications particle size must be adequately controlled and rheological properties optimized to prevent sedimentation and to facilitate transport and processing. Particle size analysis is also important for optimizing combustion efficiency for both dry and wet feeds, while characterization of fly ashes is necessary for industrial grading and regulatory assessment. Coal carbonization is another important process where coal particle size and the rheological properties can have a significant impact on the quality of the carbonized product.

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