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Meeting MS&T21: Materials Science & Technology
Symposium Advances in Ferrous Metallurgy
Presentation Title Effect of CO2 Injection into Blast Furnace Tuyeres on Smelting Parameters
Author(s) Juanjuan Jiang, Rong Zhu, Shengtao Qiu
On-Site Speaker (Planned) Juanjuan Jiang
Abstract Scope CO2 injection into blast furnace tuyeres is a new technology to utilize CO2, aiming at expanding the way of CO2 self-absorption in metallurgical industry. In this paper, a mass and energy balance mathematical model is used to analyze the variation of smelting parameters after CO2 injection. Moreover, an industrial test of injecting CO2 into the blast furnace tuyeres performed in a 1780m3 blast furnace. Theoretical analysis and industrial tests show that this technology is feasible, simultaneously, the hot blast consumption per ton of iron is reduced and the heat value of the gas on the top of the furnace is increased. The endothermic reaction between CO2 and carbon leads to the redistribution of heat in the blast furnace, When the injection rate is more than 1%, marginal gas developed, affecting the smooth operation of the blast furnace. Keywords: blast furnace, CO2, smelting parameters, mathematical model

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Non-destructive Characterization of Texture Evolution in Electrical Steels with Lab-based Diffraction Contrast Tomography
Cost Modeling and Life Cycle Analysis of Low-Emissions Iron Production
Development of Fine Grained Steel for Cold Heading Application
Effect of Alloying Content on Fractional Softening Behavior and Microstructural Evolution During Double-twist Torsion Testing of Microalloyed Steels
Effect of CO2 Injection into Blast Furnace Tuyeres on Smelting Parameters
Evaluation of Different Austenitization Sub-Models for 22MnB5 Steel Using Bayesian Model Selection Technique
High Strength Low Alloy Steels strengthened by Heusler precipitates
Hole Expansion Performance of Three High Strength Steels: Observation of Room Temperature Strain Ageing Phenomena
Impact of Alloy Composition on the Hot Ductility of Steel during Continuous Casting
New Roll Alloys Concepts Using in Finishing Stands of Rebar Rolling
Radiative Properties of Al-Si Coated 22MnB5 Steel
Reducing the Effects of Texture on Phase Fraction Measurement of Retained Austenite Using X-ray Diffraction
Research on the Phosphate Capacity of CaO-FeO-MgO-SiO2-MnO-TiO2-V2O5-P2O5 Slags
Structure Optimizations of Submerged Entry Nozzle in a Steel Slab Continuous Casting Mold
Studying Processing – Microstructure – Mechanical Property Correlation in a Multi-phase Advanced High Strength Steel
The Effect of Energy-power Parameters of Hot Rolling on Structure and Properties of Low Alloyed Steels
The Study and Optimization of Calcium Flux for Self-fluxed Pellets
Thermodynamics and Kinetics of Coke Breeze Combustion Under Different Oxygen Content in Sintering Process

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