Study Of The Biomass Application In Partial Substitution In The Coal Blends Used In The Csn Coke Production

That work has the objective to study the alternatives of mixtures with coal blend and biomass and its influence in the coke quality produced in industrial and lab scales. Seven types of the biomass that were selected being the same identified as BIO1, BIO2, BIO3, BIO4, BIO5, BIO6 and BIO7. The characterization of those materials was made in the central laboratory of the iron making department. In the tests accomplished in pilot scale the results showed that the sulfur content and fluidity decreased with the biomass participation in the blend increased. The ash content increased with the BIO4 utilization in the coal blend and the F.S.I. (Free Swelling Index) not change significant. The participation in percentage up to 4.0 we didn't observe significant effects in the Drum index, the same not happening with the reactivity that went up. In case of the coke medium size there were alteration when utilized 6.0% of the biomass BIO4 in the blend. The results of the coke quality obtained in the industrial tests are compatible with the results obtained in the pilot tests.