Coal permeability in the flow of water and alcohols

Authors: J. Żółcińska, L. Dyrga

Hard coal is a system of both hydrophilic and hydrophobic character, which is of vital importance in the research concerning its interaction with water as well as various organic liquids.

Their contact with the coal substances is followed by sorption and swelling of the coal, which is manifested by a distinct decrease of its permeability in the liquid flow.

The aim of the present study has been a comparison of the interaction of water as well as methyl and ethyl alcohols with coal, by measuring the coal permeability in the flow of those liquids.