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and ROUND TABLE
The exhaustion of natural resources (quantity and quality) and CO2 emission controls are becoming increasingly important worldwide especially in materials production industries. In this Symposium, the focus of debate is narrowed in steel industries and related area. In the blast furnace root, countermeasures against low quality iron ores and coals are urgent subjects to study in agglomeration processes, such as sintering, pelletizing and cokemaking. After taking these subjects into consideration, we have to control the total blast furnace root or even the integrated steel making plant to make more efficient and to be more eco-friendly and less CO2 emission. In the other virgin metal, or iron production root, such as direct reduction and smelting reduction using iron ore, countermeasures against low quality iron ores and fuels or coals are also urgent subjects to study and at the same time to control CO2 emission. Used steel recycling root is also important to produce crude steel in electric furnaces as well as the partly use of scrap in the oxygen-convertor or even in the blast furnace; in these cases how to overcome the tramp element problems is also urgent subjects to study and at the same time to control CO2 emission.
Carbonization of liquid iron from coke as solid / liquid reaction (1) as well as that of solid steel from hydrocarbon as solid / gas reaction (2) are also important subjects to control the lower part of blast furnace reactions efficiently (1) as well as to reduce both resource gas volume and CO2 emission in carbonization furnaces (2).
In addition, utilization of dusts from iron and steel production plants and disposal of municipal wastes are also important subjects to reduce environmental loads and ironmaking or steelmaking technologies can be applied to these processing. Charcoal and biomass uses in ironmaking processes are also attractive for minimizing CO2 emission and fossil fuel use.
In summary, "Dust Processing-Energy-Environment in Iron and Steel Industries" are the main topics included in USUI International Symposium for celebrating his 50 years of research carrier.
- Experimental techniques: existing and new developments
- Reaction kinetics, thermodynamics, minor element behavior
- Chemical and transport properties of slags, metals, fluxes, gases, etc.
- Process modeling and simulation (computational fluid dynamic modeling, etc.)
- Refractory materials, degradation, control and optimization
- Recycling, waste treatment, soil remediation and biotechnologies
- New, Improved and Existing Technologies
- Raw Materials Processing: Coke, Fero-coke, Coal, Comminution, Magnetic Separation, Froth Flotation
- Iron ore agglomeration: Pelletizing, Sintering, Carbon-composite agglomerates, New agglomerates such as partly-reduced pellet and sinter
- Ironmaking: Blast Furnace, Charcoal Blast Fuirnace, Direct Reduction, Direct Smelting
- Pre-treatment of crude iron
- Steelmaking: Basic Oxygen Furnaces, Electric Arc Furnaces, Contaminant Removal
- Solidification: Continuous casting, New casting
- Environmental: Carbon Dioxide, Sulfur Oxides, Nitrogen Oxides, Mercury, Volatile Organics
- Chemical and metallurgical process reactors
- Control operations and new designs
- Products quality and cleanness (metals, steels, etc.)
- Industrial Practice:
- Plant and furnace operations
- Process parameters in iron and steel making reactors
- Feed preparation processes, equipment
- Gas handling processes and equipment
- Dusts and fugitive emissions; Dioxin emission control
- New minimills and expansion/capital projects
- Predicted future of iron and steel operations
- Process control, optimization and automation
- Integrated production vs. minimill production
- Carbonization of solid steel from hydrocarbon; to reduce both resource gas volume and CO2 emission in carbonization furnaces
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