Sökning: id:"swepub:oai:DiVA.org:kth-157298" >
Structure and alkal...
Structure and alkali content of coke in an experimental blast furnace and their gasification reaction
-
- Sahajwalla, V. (författare)
- School of Materials Science and Engineering, University of New South Wales
-
- Hilding, T. (författare)
- Luleå tekniska universitet
-
- Von Oelreich, Anne (författare)
- KTH,Metallurgi,Department of Materials Science and Engineering, Division of Metallurgy, Royal Institute of Technology
-
visa fler...
-
- Gupta, S. K. (författare)
- School of Materials Science and Engineering, University of New South Wales,Department of Materials Science and Engineering, Division of Metallurgy, Royal Institute of Technology
-
- Björkman, Bo (författare)
- Luleå tekniska universitet,Industriell miljö- och processteknik
-
Wikström, Jan-Olov (författare)
-
- Fredriksson, Patrik (författare)
- KTH,Metallurgi,Department of Materials Science and Engineering, Division of Metallurgy, Royal Institute of Technology
-
- Seetharaman, Seshadri (författare)
- KTH,Metallurgi
-
visa färre...
-
(creator_code:org_t)
- Warrendale, Pa : Iron and Steel Society, 2004
- 2004
- Engelska.
-
Serie: AISTech - Iron and Steel Technology Conference Proceedings, 1551-6997
-
Ingår i: Iron & Steel Technology Conference proceedings. - Warrendale, Pa : Iron and Steel Society. - 1886362750 ; , s. 491-500
- Relaterad länk:
-
https://ltu.diva-por... (primary) (Raw object)
-
visa fler...
-
https://urn.kb.se/re...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- Coke samples excavated from LKAB's Experimental Blast Furnace (EBF) at MEFOS in Luleå, Sweden were used to observe the influence of in-furnace reactions on the changes in chemical stracture of cokes and their influence on kinetics of CO 2 reactivity. In addition to growth of carbon crystallite of coke, alkali concentration particularly potassium and sodium were found to increase as coke descended towards lower part of the EBF. The increase in carbon structure could be linearly related to measured temperature profiles of EBF. Isothermal and non-isothermal TGA measurements are shown to indicate that CO 2 reactivity of coke becomes progressively faster as it moves towards lower part of blast furnace. The study suggests that alkali enrichment of cokes in an operating blast furnace could have a strong catalytic effect on the CO 2 reactivity. Further research is expected to clarify the mechanisms of influence of coke minerals on reactivity and their implications in a blast furnace.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- Alkali contents
- Carbon structure
- Coke property
- Experimental blast furnaces (EBF)
- Alkalinity
- Carbon dioxide
- Catalysis
- Coal gasification
- Coke
- Crystalline materials
- Isotherms
- Reaction kinetics
- Structure (composition)
- Thermogravimetric analysis
- Blast furnaces
- Process Metallurgy
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
Hitta via bibliotek
Till lärosätets databas