Speaker
ALESSANDRO MARTINIS
(Danieli)
Description
The use of DRI can help steelmakers facing the more and more tough environmental
policies and market competition of modern times. Even better results can be obtained by
using high-carbon DRI, a pre-reduced material with minimum 3.5% Carbon content, most of
which in iron carbide form. This upgraded quality is the result of specific direct reduction's
operating conditions, that are peculiar to the Energiron Zero-Reformer process. Adding high
carbon DRI to blast furnaces' feed mix allows to decrease CO2 emissions and at the same
time to increase the productivity, without any modification to the design of blast furnaces.
Further optimizations to the overall process can be achieved by feeding BFG and/or COG to
the direct reduction (DR) plant, so that it will operate in symbiosis with the blast furnace. In
those cases in which the CO2 emissions must be decreased to the minimum level technically
achievable, the integration of an Energiron direct reduction plant with an electric arc furnace
(EAF) will provide the lowest carbon footprint for high-quality steel production. Ezz Rolling
Mill opted for this solution in its new facility in Egypt, where the Energiron III plant recently
started production. This direct reduction module quickly achieved remarkable performances
and reached nominal capacity in less than one month of operation.
Author
DARIO PAULUZZI
(Danieli)
Co-authors
ALESSANDRO MARTINIS
(Danieli)
JORGE MARTINEZ
(Tenova HYL)