Efficiency of hydrogen utilization in reduction processes in ferrous metallurgy

Above all, existing blast furnace production comes about through innovations in the area ofinjection of alternative fuels as a partial substitute for metallurgical coke. these fuels have one commonaspect; when they are used in metallurgical based industries, the hydrogen content in reducing gas issignificantly increased. for variant calculations of the course of blast furnace smelting and the optimisingof alternative fuels, a system of models of blast furnace smelting was developed at the vsb; technicaluniversity of ostrava. this system enables respect for basic limits and establishes the needed technologicaldata for calculation of the injection efficiency of these fuels into blast furnaces. some non-traditionalalternative fuels have not been used in the process yet, here or abroad, and the use of the prognosticmodel system enables, in this way, a preliminary efficiency estimation of their application without thenecessity of carrying out expensive and risky operating experiments. following the first testing results,the influence of the share of hydrogen on the reduction process acceleration, and in the efficiency increaseof iron production, is not negligible in any case.