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The integrated iron and steel plants produce a large
part of their electrical needs (50-80%) with natural gas as well as
process gases from the coke factory, blast furnace and steel mill
processes. Electricity generation takes place in both steam boilers
and gas turbines. A portion of the 45 bar steam produced in the
steam boilers is reduced to 15 bar and charged to the units at the
rate of the process. There are 5 projects for 15 bar steam
production from waste heat boiler, two investment projects for
reduction of electricity consumption, and one project of
electricity production from top pressure recovery turbine (TRT),
which are realized between the years of 2012 and 2017. In this
study, the effects of these projects on greenhouse gas emissions of
energy production processes were investigated. In 2017, CO2
emissions were reduced by 15.41% due to 15 bar steam
production from 4 waste heat boilers. With the TRT project, the
CO2 emissions from the total electricity consumed decreased by
3.43% in 2017. The emission gains from electricity reduction
projects have been realized as 22.5% for sintering plant and 31%
for the rolling plant.
International Iron & Steel Symposium
UDCS
İrem Gürsoy
Didem İnceoğlu
Okşan Tartanoğlu
Mehmet Beyazçiçek