Dynamics of trace elements release in a coal pyrolysis process☆

Samples of coal and solid carbonization product obtained at four temperatures: 400, 600, 850 and 1000 °C were tested on account of the contents of trace elements. The following hazardous trace elements were considered: arsenic, beryl, cadmium, manganese, nickel, lead, mercury and selenium. The release curves for the elements tested were determined.