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VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 02
SUMMARY:Reduction degradation of sinter and lump under CO and H2 gas mixtures
DESCRIPTION:The utilization of hydrogen (H2) in blast furnaces is one of the alternatives to reduce greenhouse gas emissions. It was widely known that the addition of H2 can increase the reduction of ferrous burden materials and improve the permeability inside the blast furnace. However, the addition of H2 in a conventional blast furnace, with carbon monoxide (CO) as major reducing gas, might change the reduction degradation behaviour and affect the permeability in the upper part of blast furnace.

Previous studies on reduction degradation show that there is still disagreement about the effect of H2 on degradation, especially when the H2 has partially replaced the portion of CO in the reducing gas. Moreover, the extent of degradation also seems to be dependent on H2 content and type of iron ore. Therefore, a study for reduction degradation for a different type of iron ore at different CO and H2 gas mixtures is still required.

This study compares the reduction degradation of sinter and lump using a modified reduction degradation test. Various gas mixtures containing CO and H2 are used for the reduction test, including the simulated gas composition for blast furnace with maximum H2 injection. The extent of degradation is compared by the reduction degradation index (RDI) value and microstructure analysis are applied to observe the degradation mechanism.

CLASS:PUBLIC
DTSTART:20230614T143000
DTEND:20230614T145000
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