Sökning: "Lena Sundqvist Öqvist"

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1. 1. Bio-coal as an alternative reducing agent in the blast furnace

   Författare :Asmaa El-Tawil; Lena Sundqvist Öqvist; Bo Björkman; Henrik Saxen; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Devolatilization; torrefied biomass; bio-coal; volatile matter; reduction; blast furnace; Process Metallurgy; Processmetallurgi;

   Sammanfattning : The steel industry is aiming to reduce CO2 emissions by different means; in the short-term, by replacing fossil coal with highly reactive carbonaceous material like bio-coal (pretreated biomass) and, in the longer term, by using hydrogen. The use of bio-coal as part of top charged briquettes also containing iron oxide has the potential to lower the thermal reserve zone temperature of the Blast furnace (BF) and, due to improved gas efficiency, thereby give a high replacement ratio to coke. LÄS MER