Abstract:
The greenhouse gases emissions reduction needs are essential for the steel industry long-term sustainability and proper human life conditions in a short period ahead us. For achieving fast results in a new subject for all of us as Green Steel, some concepts and the available technologies now and under developments for the near future should be aligned in all regions around the world. The terminologies and definitions around the subject will be shown at this paper in a general and basic level: scope 1, 2 and 3, equivalent CO2 gases footprint and the GWP100, energy intensity for the main production routes, primary and secondary conception, regulations implemented and under discussion like ETS, CBAM, IMF, carbon pricing and other countries indexes. Some technologies already available and in development will also be described with specific capabilities and available resources by using reference projects under execution such as DRI plant production using DC EAF or OBF. The results planned and achieved changing the route of BF-BOF to the ones described will be the focus. With that, the readers will prepare themselves for deep developments and researching with the possibility to spread the actions in the South America region in different directions and change the actual scenario by starting a significant contribution to our planet and consequently to ourselves. Despite of punctual explanations about agriculture, land-use change and forestry effects to the subject will be described, we should not expect to come out from this paper with a clear picture of such sectors that are probably the main ones to be focused specially in Brazil. In general, Green Steel first understanding is the target.
