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ORGANIZER;CN='8th ECIC & 9th ICSTI 2022':MAILTO:info@ecic-icsti.com
LOCATION:Room „Borgward“
SUMMARY:On the mission to “green” steel - CO2 reduction steps at HKM
DESCRIPTION:The European steel industry has broadly committed to the European climate targets by developing decarbonisation plans. A common dominator of these plans is a transformation step, which includes a technology shift from carbon-based blast furnaces to green hydrogen-based direct reduction processes. This will happen around 2030, resulting in a significant CO2 reduction.
Hüttenwerke Krupp Mannesmann GmbH (HKM) operates an integrated steel mill in Duisburg and generally agrees with the common decarbonisation plans. Despite these future action plans within the European steel industry, HKM already started to take action aiming for a significant CO2 reduction with the existing facilities before the transition point of 2030. Until this transition point, it is HKMs aim to make processes as CO2-efficient as possible. HKM has gained significant experience injecting natural gas (NG) into its blast furnaces through the tuyeres in the noughties. Regular injections were stopped as PCI became available in 2010. The re-establishment of NG-injection replacing pulverized coal (PC) will reduce the CO2 emissions of the blast furnace.
Furthermore, as HKM operates no rolling mills, there is an excess of low-pressure, high hydrogen-containing (>70%) coke oven gas (COG), which is currently used for power generation. This article discusses how coke oven gas and other hydrogen-containing gases are utilized as additional reducing agents for the blast furnace and how it lowers the carbon footprint of HKM’s crude steel significantly.
CLASS:PUBLIC
DTSTART:20220901T103000
DTEND:20220901T105500
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