BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 17a
SUMMARY:Reduction of CO2 emissions by lowering hot metal ratio in converter steelmaking process
DESCRIPTION:One of the most effective ways to reduce carbon emissions in the oxygen steelmaking process is to lower the hot metal ratio (HMR) in basic oxygen furnace (BOF). However, if the HMR is lowered, the amount of oxygen blowing during decarburization in the BOF converter increases due to a lack of heat source. As a result, the amount of the deoxidizer increases because the end point oxygen content in the molten steel increases, which results in a deterioration of the cleanliness of molten steel. Therefore, this study was conducted to ensure the molten steel quality even at a decreased HMR about 10%p compared to the current level to reduce carbon emission in a BOF steelmaking. An appropriate amount of silicon in hot metal was presented to maintain the lowered HMR, and a method of refining phosphorus when the silicon content in hot metal is varied for the lowered HMR was presented. Finally, even if the amount of scrap usage increases due to the application of lowered HMR operation, a process was improved to resolve the tramp elements issue.
CLASS:PUBLIC
DTSTART:20230615T092000
DTEND:20230615T094000
END:VEVENT
END:VCALENDAR