We will supply argillite, coal slurry (fine coal beneficiation waste) from the Chervonograd coal processing plant
Ash content 35-45%
humidity - up to 22%
heat of combustion min - 3100-3300 kcal (//tractor-service.com)
there are also products with indicators:
Ash content 11-20%
humidity - up to 20%
heat of combustion min - 6100-6500 kCal