MAŠLEJOVÁ Alica U.S.Steel Kosice s.r.o.

Utilization of biomass as a carbon neutral is an attractive for ironmaking, so many different ways of its usage should be tried to mitigate CO2 emissions. Wooden biomass content from 1 to 5% was used in laboratory coking furnaces as a possible renewable source of carbon instead of high volatile coal. Sawdust, crushed cob corn, bark and charcoal were evaluated in laboratory sinter pot device as possible replacement of ordinary fine coke in sinter mixture. Total fuel amount was replaced from 10 to 40% in individual charges. Sintering time was shortened, productivity grew up, amount of returned sinter decreased. Replacement of fine coke by biomass is advantageous, while quality parameters of produced sinter were not significantly deteriorated.