Effect of Bottom Bubbling Conditions on Surface Reaction Rate in Oxygen-Water System
スポンサーリンク
概要
- 論文の詳細を見る
In secondary steelmaking, the enhancement of the reaction rate in the low carbon period during the decarburization of steel is considered the most effective method to produce ultralow carbon steel. In a previous study, it was revealed that the surface reaction is dominant during the final stage of the actual refining process. In order to improve the surface reaction rate, it is necessary to enlarge the reaction region, which is usually achieved by increasing the plume eye area. In this study, water model experiments were carried out to estimate the influence of bottom stirring conditions on the gas-liquid reaction rate; for this purpose, the deoxidation rate during the bottom bubbling process was measured. Five types of nozzle configurations were used to study the effect of the plume eye area on the reaction rate at various gas flow rates. The results reveal that the surface reaction rate is influenced by the gas flow rate and the plume eye area. An empirical correlation was developed for the reaction rate and the plume eye area. This correlation was applied to estimate the gas–liquid reaction rate at the bath surface.
- 社団法人 日本鉄鋼協会の論文
- 2010-01-15
著者
-
Maruoka Nobuhiro
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
-
Lazuardi Felicia
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
-
Kitamura Shin-ya
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
-
Nogami Hiroshi
Department of Chemical Engineering, Ichinoseki National College of Technology
-
Nogami Hiroshi
Department Of Chemical Engineering Ichinoseki National College Of Technology
-
Maruoka Nobuhiro
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
-
Kitamura Shin-ya
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
-
Kitamura Shin-ya
Institute Of Multi-disciplinary Research On Advanced Materials Tohoku University
-
GUPTA Govind
Department of Materials Engineering, Indian Institute of Science
-
Lazuardi Felicia
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
-
Kitamura Shin-ya
Inst. Of Multidisciplinary Res. For Advanced Materials Tohoku Univ.
-
Gupta Govind
Department Of Materials Engineering Indian Institute Of Science
関連論文
- Development of PCM Reactor for Methane Steam Reforming
- Evaluation of Bubble Eye Area to Improve Gas/Liquid Reaction Rates at Bath Surfaces
- Simultaneous Three-dimensional Analysis of Gas–Solid Flow in Blast Furnace by Combining Discrete Element Method and Computational Fluid Dynamics
- Dynamic Analysis of Gas and Solid Flows in Blast Furnace with Shaft Gas Injection by Hybrid Model of DEM-CFD
- Cold-model Experiments on Deadman Renewal Rate Due to Sink-Float Motion of Hearth Coke Bed
- Numerical Analysis of Static Holdup of Fine Particles in Blast Furnace
- Numerical Analysis on Blast Furnace Performance under Operation with Top Gas Recycling and Carbon Composite Agglomerates Charging
- Numerical Analysis on Blast Furnace Performance under Operation with Waste Plastics Injection and Top Gas Recycling
- Numerical Analysis on Injection of Hydrogen Bearing Materials into Blast Furnace
- Numerical Analysis on Charging Carbon Composite Agglomerates into Blast Furnace
- Numerical Analysis on Top Gas Recycling in Blast Furnace with Carbon Composite Agglomerates Charging
- Numerical Evaluation on Blast Furnace Performance under Operation with Carbon Composite Agglomerates Charging
- Numerical Analysis on Effects of Charging Carbon Composite Agglomerates on Blast Furnace Operation
- Mathematical Model of Over-micron and Nano-scale Powders Accumulation in a Coke Fixed-Bed Filter
- Numerical Simulation of the Moving Bed Furnace for Iron Scrap Melting
- Numerical Simulation of the Moving Bed Furnace for Iron Scrap Melting
- Three-dimensional Multiphase Mathematical Modeling of the Blast Furnace Based on the Multifluid Model
- Numerical Analysis of Multiple Injection of Pulverized Coal, Prereduced Iron Ore and Flux with Oxygen Enrichment to the Blast Furnace
- Transient Mathematical Model of Blast Furnace Based on Multi-fluid Concept, with Application to High PCI Operation
- Numerical study on natural gas injection to the blast furnace
- Transient Mathematical modeling of Blast Furnace based on multi-fluid concept
- Some Aspects on Grain Refining Additions with Focus on Clogging during Casting
- Analysis of transient blast furnace behavior by using a 3-D mathematical model
- Three-dimensional blast furnace mathematical modeling based on multi-fluid theory
- Analysis on Material and Energy Balances of Ironmaking Systems on Blast Furnace Operations with Metallic Charging, Top Gas Recycling and Natural Gas Injection
- Numerical Investigation on Effects of Deadman Structure and Powder Properties on Gas and Powder Flows in Lower Part of Blast Furnace
- Computational Investigation of Scrap Charging to the Blast Furnace
- Analysis of Actual Blast Furnace Operations and Evaluation of Static Liquid Holdup Effects by the Four Fluid Model
- Prediction of Blast Furnace Performance with Top Gas Recycling
- A Mathematical Model for Blast Furnace Reaction Analysis Based on the Four Fluid Model
- A Mathematical Model of Four Phase Motion and Heat Transfer in the Blast Furnace
- Analysis of Dephosphorization Reaction Using a Simulation Model of Hot Metal Dephosphorization by Multiphase Slag
- Effect of Bottom Bubbling Conditions on Surface Reaction Rate in Oxygen-Water System
- Behavior of Cobalt in Iron- and Steel-making Processes
- Distribution of P_2O_5 between Solid Dicalcium Silicate and Liquid Phases in CaO-SiO_2-Fe_2O_3 System
- Prediction of Raceway Shape and Size
- Mass Transfer of P_2O_5 between Liquid Slag and Solid Solution of 2CaO・SiO_2 and 3CaO・P_2O_5
- Distribution of P_2O_5 between Solid Solution of 2CaO・SiO_2-3CaO・P_2O_5 and Liquid Phase
- Histological Analysis of Triphalangism Associated with Polydactyly of the Thumb
- Influences of Physical Properties of Particle in Discrete Element Method on Descending Phenomena and Stress Distribution in Blast Furnace
- Recent Progress and Future Perspective on Mathematical Modeling of Blast Furnace
- Chemical State of Chromium in CaO-SiO_2 Base Oxides Annealed under Different Conditions
- Chondrodysplasia Punctata with Myopathic Involvement
- Distribution of Cobalt between MgO-Saturated FeO_x-MgO-CaO-SiO_2 Slag and Fe-Cu-Co Molten Alloy
- Development of PCM Reactor for Methane Steam Reforming
- Exergy Analysis of Methane Steam Reformer Utilizing Steelmaking Waste Heat
- Dynamic Analysis of Gas and Solid Flows in Blast Furnace with Shaft Gas Injection by Hybrid Model of DEM-CFD
- Influence of Bottom Bubbling Condition on Metal Emulsion Formation in Lead-Salt System
- Simultaneous Three-dimensional Analysis of Gas-Solid Flow in Blast Furnace by Combining Discrete Element Method and Computational Fluid Dynamics
- Numerical Inverstigation of Simulaneous Injection of Pulverized Coal and Natural Gas with Oxygen Enrichment to the Blast Furnace
- An unsteady state mathematical model of blast furnace based on multi-fluid concept
- Degree of Undercooling and Contact Angle of Pure Iron at 1933K on Single-crystal Al_2O_3, MgO, and MgAl_2O_4 under Argon Atmosphere with Controlled Oxygen Partial Pressure
- Evaluation of Bubble Eye Area to Improve Gas/Liquid Reaction Rates at Bath Surfaces
- Penetration Effect of Injected Gas at Shaft Gas Injection in Blast Furnace Analyzed by Hybrid Model of DEM-CFD
- Behavior of Vanadium and Niobium during Hot Metal Dephosphorization by CaO-SiO_2-Fe_tO Slag
- Influence of Solid CaO and Liquid Slag on Hot Metal Desulfurization
- Mechanism of Change in Chemical Composition of Oxide Inclusions in Fe-Cr Alloys Deoxidized with Mn and Si by Heat Treatment at 1473 K
- Preface to the Special Issue on "Fundamentals and Applications of Non-metallic Inclusions in Solid Steel"
- Influence of Bottom Bubbling Rate on Formation of Metal Emulsion in Al–Cu Alloy and Molten Salt System
- Influence of Bottom Bubbling Rate on Formation of Metal Emulsion in Al-Cu Alloy and Molten Salt System
- Influence of Slag Basicity and Temperature on Fe and Mn Distribution between Liquid Fe–Mn–Ca–O–S Matte and Molten Slag
- Equilibrium Distribution Ratio of Phosphorus between Solid Iron and Magnesiowustite-saturated Al2O3–CaO–FetO–MgO–SiO2 Slag at 1623 K