Title: Pyrolysed Residual Biomass as a Substitutional Fuel for Iron Ores Sintering Process

Abstract:

The paper presents results of the research on the use of chars produced during pyrolysis of residual biomass as a substitutional fuel in the iron ore sintering process. Such the approach allows to implement circular economy and industrial symbiosis to iron and steel branch. The effect of the substitution of conventional coke breeze fuel used in sintering on final sinter quality and emission was examined. In regard to productivity, fuel consumption and properties of the sinter it was shown, that the share of tested biochars in fuel may be kept at 10 up to 30wt.%, depending on the biochar type. It was observed, that with the use of the biochars, the content of iron oxide in the sinter decreased, what was advantageous. Moreover, the sinter obtained at the presence of biochars characterized with better strength and abrasion than the sinter obtained with coke breeze based fuel improving the final product quality. The presence of biochar influenced on raw exhaust gas composition and resulted in slight increase of organic and inorganic carbon compounds content, while the amount of sulphur oxides was noticeably decreased. It was concluded the biochars may be applied in sintering process at established share in the fuel stream.

Biography:

Marian Niesler is research worker, associate professor, Head of the Department of Primary Processes. Specialist in the field of blast furnace process, iron ore sintering, environmental protection and implementation of new fuels and reducing agents in metallurgical processes. An expert in the field of best available BAT techniques for steel iron production. Four industry guides on the application of BAT techniques for the metallurgical industry and administration were created under the order of the Ministry of the Environment.