prof. SUT Stanisław Gil, PhD DSc (Eng) Affiliation: Silesian University of Technology Faculty of Materials Engineering Department of Metallurgy and Recycling 40-019 Katowice, ul. Krasińskiego 8, Poland E-mail: stanislaw.gil@polsl.pl Website: https://orcid.org/0000-0003-3397-0620 Interests: pyrolysis, combustion, hydrogasification, microstructure of solid fuels, fuel conversion kinetics, submerged arc furnace, and ferroalloy.