A5046876557- Iron and Steelmaking Processes
- Metal Extraction and Bioleaching
- Thermochemical Biomass Conversion Processes
- Metallurgical Processes and Thermodynamics
- Bone health and treatments
- Environmental Impact and Sustainability
- Mining and Gasification Technologies
- TGF-β signaling in diseases
- Mineral Processing and Grinding
- Minerals Flotation and Separation Techniques
- Lignin and Wood Chemistry
- Biofuel production and bioconversion
- Bone Metabolism and Diseases
- Chemical Looping and Thermochemical Processes
University of Oulu
2012-2019
A ferrous burden loses its permeability in the cohesive zone of a Blast Furnace (BF) which has an effect on flow reducing gases. Iron ore pellets with various chemical compositions have different softening properties. Due to occurrence numerous simultaneous phenomena clarification variables is difficult. In this study Reduction Degree (RD) behavior individual acid and olivine fluxed iron was experimentally tested under inert conditions. The pellet softened rapidly at 1150°C reached about 40%...
The aim of this research was to investigate the effects charcoal and Kraft-lignin additions on structure, cold compression strength, reactivity bio-cokes produced at laboratory scale. Bio-cokes were prepared by adding (2.5, 5.0, 7.5, 10.0 wt %) medium-volatile coal coking mixture with controlled heating rate (3.5 °C/min) up 1200 °C. In addition, four particle sizes added a 5 % addition effect size strength reactivity. Thermogravimetric analysis used evaluate pyrolysis behavior biomasses....
A ferrous burden loses its permeability in the cohesive zone of a Blast Furnace (BF), where iron materials soften and melt. tailor-made, high-temperature furnace named ARUL (Advanced Reduction under Load) was used here to study reduction-softening behaviour acid olivine pellets basic sinter simulated BF gas, temperature pressure conditions.
Large amounts of injectants are used in the blast furnace (BF) process to reduce coke consumption, but this changes gas composition BF shaft where iron ore reduction takes place. H2 and H2O gases change markedly atmosphere at high injection levels, which makes it important investigate their effects on oxides a CO–CO2 atmosphere. The gaseous content is approximately 8%. In present work olivine pellets were reduced H2–H2O–CO–CO2 atmospheres with equal reducing potentials CO by fixing H2/H2O...
Recycling of fine sized iron-rich by-products back to blast furnace (BF) process in the form cement-bonded briquettes has become a common procedure steel plants. Replacing part cement by Ground Granulated Blast Furnace Slag (GGBFS) is also method reduce consumption. When are subjected high temperature and reducing atmosphere BF, phases decompose iron oxides undergo series phase transformations. To avoid early disintegration improve performance briquettes, it necessary study these reactions...
In order to reduce CO2 emissions in the iron and steel industry, utilization of H2 gas as a reducing agent is feasible option. The use hydrogen bearing injectants lower blast furnace (BF) area increases H2O concentration upper part BF shaft charging moist burden has similar effect well. For efficient operation, it important investigate high therefore concentrations gas. This study focuses on where hematite magnetite reduction takes place temperature range forward water-gas shift reaction...
A ferrous burden loses its permeability in the cohesive zone of a Blast Furnace (BF) which has an effect on flow reducing gases. Iron ore pellets with various chemical compositions have different softening properties. Due to occurrence numerous simultaneous phenomena clarification variables is difficult. In this study Reduction Degree (RD) behavior individual acid and olivine fluxed iron was experimentally tested under inert conditions. The pellet softened rapidly at 1150°C reached about 40%...
Searchable abstracts of presentations at key conferences on calcified tissues ISSN 2052-1219 (online)