Statistical laws of pore distribution in the activation of gas coal

An experiment was run involving the single-stage pyrolysis of grade G (gas) coal in a stream of steam. Variation of the basic factors (duration of pyrolysis, temperature of pyrolysis, and temperature of feeding the steam into the reactor) yielded activated carbons with a developed microporous structure. The statistical laws of macropore distribution were determined, and the features of the formation of micro- and mesopores were established depending on the pyrolysis conditions. The relevant regression equations were obtained for the average sizes of the macropores and their walls. The relation is shown between the x-ray structural parameters and the degree of burning out (the combustion losses) of the initial coal.