scholarly journals Advancement in Steel Production Technologies and Its Future Issues

1994 ◽  
Vol 80 (12) ◽  
pp. N598-N605
Author(s):  
Shinobu TOSAKI
Keyword(s):  
Steel Production ◽  
Production Technologies

scholarly journals The Vector of Equal Costs as a Method of Studying the Process of Industrialization (according to labor productivity data in the iron and steel industry of the Urals of the late XIX – early XX centuries)

2021 ◽  
Vol 17 (2) ◽  
pp. 144-160
Author(s):  
Georgy N. Shumkin
Keyword(s):  
Labor Productivity ◽  
Cast Steel ◽  
Mining Industry ◽  
Steel Production ◽  
Open Hearth ◽  
Iron Production ◽  
The Urals ◽  
Iron And Steel ◽  
Productivity Data ◽  
Production Technologies

Introduction. An attempt is made to analyze the dynamics of labor productivity in the iron-making industry of the Urals using the equal cost vector during the replacement of welding iron production technologies with cast steel production technologies in open-hearth and Bessemer furnaces, as well as to determine the heuristic potential of this method. Materials and Methods. The study uses a vector of equal costs. This vector connects the points on the graph that reflect the number of two products released per unit of resource for a certain period of time. The source of the study was the “Collections of statistical data of the mining industry of Russia”. Results. The vectors of equal costs for the production of iron and steel per worker of the iron- making industries of the Urals in 1893–1911 are constructed. The periods in the development of iron-making production are highlighted. Discussion and Conclusion. The method of equal cost vectors revealed the following: 1) rational use of labor in private factories and irrational in state-owned ones; 2) significant influence of the Nadezhdinsky Plant on the structure of iron-making industries; 3) a more precise chronological framework for the replacement of welding iron production technologies by open-hearth and seedless production, the influence of market conditions on this process; 4) the replacement of old technologies with new ones did not cause an increas

scholarly journals Challenges and Outlines of Steelmaking toward the Year 2030 and Beyond—Indian Perspective

Metals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1654
Author(s):  
Sethu Prasanth Shanmugam ◽  
Viswanathan N. Nurni ◽  
Sambandam Manjini ◽  
Sanjay Chandra ◽  
Lauri E. K. Holappa
Keyword(s):  
Co2 Emissions ◽  
Steel Industry ◽  
Raw Materials ◽  
Steel Production ◽  
Capita Consumption ◽  
Recent Developments ◽  
Production Technologies ◽  
Per Capita ◽  
Top Gas Recycling ◽  
Per Capita Consumption

In FY-20, India’s steel production was 109 MT, and it is the second-largest steel producer on the planet, after China. India’s per capita consumption of steel was around 75 kg, which has risen from 59 kg in FY-14. Despite the increase in consumption, it is much lower than the average global consumption of 230 kg. The per capita consumption of steel is one of the strongest indicators of economic development across the nation. Thus, India has an ambitious plan of increasing steel production to around 250 MT and per capita consumption to around 160 kg by the year 2030. Steel manufacturers in India can be classified based on production routes as (a) oxygen route (BF/BOF route) and (b) electric route (electric arc furnace and induction furnace). One of the major issues for manufacturers of both routes is the availability of raw materials such as iron ore, direct reduced iron (DRI), and scrap. To achieve the level of 250 MT, steel manufacturers have to focus on improving the current process and product scenario as well as on research and development activities. The challenge to stop global warming has forced the global steel industry to strongly cut its CO2 emissions. In the case of India, this target will be extremely difficult by ruling in the production duplication planned by the year 2030. This work focuses on the recent developments of various processes and challenges associated with them. Possibilities and opportunities for improving the current processes such as top gas recycling, increasing pulverized coal injection, and hydrogenation as well as the implementation of new processes such as HIsarna and other CO2-lean iron production technologies are discussed. In addition, the eventual transition to hydrogen ironmaking and “green” electricity in smelting are considered. By fast-acting improvements in current facilities and brave investments in new carbon-lean technologies, the CO2 emissions of the Indian steel industry can peak and turn downward toward carbon-neutral production.

scholarly journals Techno-economic evaluation of innovative steel production technologies

2014 ◽  
Vol 84 ◽  
pp. 563-580 ◽  
Author(s):  
Manfred Fischedick ◽  
Joachim Marzinkowski ◽  
Petra Winzer ◽  
Max Weigel
Keyword(s):  
Economic Evaluation ◽  
Steel Production ◽  
Production Technologies

Well-To-Wheel Analysis of Solar Hydrogen Production and Utilization for Passenger Car Transportation

2007 ◽  
Vol 130 (1) ◽  
Author(s):  
Remo Felder ◽  
Anton Meier
Keyword(s):  
Life Cycle ◽  
Hydrogen Production ◽  
Ghg Emissions ◽  
Steel Production ◽  
Passenger Car ◽  
Solar Hydrogen ◽  
Production Technologies ◽  
Fossil Resource ◽  
Solar Hydrogen Production ◽  
Car Transportation

A well-to-wheel analysis is conducted for solar hydrogen production, transport, and usage in future passenger car transportation. Solar hydrogen production methods and selected conventional production technologies are examined using a life cycle assessment. Utilization of hydrogen in fuel cells is compared with advanced gasoline and diesel powertrains. Solar scenarios show distinctly lower greenhouse gas (GHG) emissions than fossil-based scenarios. For example, using solar hydrogen in fuel cell cars reduces life cycle GHG emissions by 70% compared to advanced fossil fuel powertrains and by more than 90% if car and road infrastructure are not considered. Solar hydrogen production allows a reduction of fossil energy requirements by a factor of up to 10 compared to using conventional technologies. Major environmental impacts are associated with the construction of the steel-intensive infrastructure for solar energy collection due to mineral and fossil resource consumption as well as discharge of pollutants related to today’s steel production technology.

scholarly journals Use of biomass in integrated steelmaking – Status quo, future needs and comparison to other low-CO2 steel production technologies

2018 ◽  
Vol 213 ◽  
pp. 384-407 ◽  
Author(s):  
Hannu Suopajärvi ◽  
Kentaro Umeki ◽  
Elsayed Mousa ◽  
Ali Hedayati ◽  
Henrik Romar ◽  
...  
Keyword(s):  
Steel Production ◽  
Status Quo ◽  
Low Co2 ◽  
Future Needs ◽  
Production Technologies

scholarly journals Production of Sustainable Hydrogen and Carbon for the Metallurgical Industry

2021 ◽  
Vol 5 (1) ◽  
pp. 67
Author(s):  
Roar Jensen ◽  
Casper van der Eijk ◽  
Aud N. Wærnes
Keyword(s):  
Carbon Black ◽  
Steel Production ◽  
Metallurgical Industry ◽  
Plasma Technology ◽  
Free Hydrogen ◽  
Production Technologies ◽  
Metallurgical Processes

Hydrogen will presumably become an important substitute for carbon as a reductant in the metallurgical industry for processes such as steel production. However, the challenge to supply enough CO2-free hydrogen for metallurgical processes has not been resolved yet. This paper reviews different production technologies for hydrogen and their advantages and drawbacks. Additionally, it will highlight the development of plasma technology to produce hydrogen and carbon black which has been taking place at SINTEF during the last 30 years.

Drying and heating of scrap metal at steelmaking: industrial safety, economics, ecology

2020 ◽  
Vol 76 (12) ◽  
pp. 1353-1258
Author(s):  
V. A. Spirin ◽  
V. E. Nikol’skii ◽  
D. V. Vokhmintsev ◽  
A. A. Moiseev ◽  
P. G. Smirnov ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
High Efficiency ◽  
Steel Production ◽  
Scrap Metal ◽  
Industrial Safety ◽  
Technical Solution ◽  
Metal Charge ◽  
Basic Task ◽  
Scrap Heating ◽  
Winter Time

At steel production based on scrap metal utilization, the scrap heating before charging into a melting facility is an important way of energy efficiency increase and ecological parameters improving. In winter time scrap metal charging with ice inclusions into a metal melt can result in a considerable damage of equipment and even accidents. Therefore, scrap preliminary drying is necessary to provide industrial safety. It was shown, that in countries with warm and low-snow climate with no risk of scrap metal icing up during its transportation and storing in the open air, the basic task being solved at the scrap drying is an increase of energy efficiency of steelmaking. InRussiathe scrap metal drying first of all provides the safety of the process and next - energy saving. Existing technologies of scrap metal drying and heating considered, as well as advantages and drawbacks of technical solutions used at Russian steel plants. In winter time during scrap metal heating at conveyers (Consteel process) hot gases penetrate not effectively into its mass, the heat is not enough for evaporation of wetness in the metal charge. At scrap heating by the furnace gases, a problem of dioxines emissions elimination arises. Application of shaft heaters results in high efficiency of scrap heating. However, under conditions of Russian winter the upper scrap layers are not always heated higher 0 °С and after getting into a furnace bath the upper scrap layers cause periodical vapor explosions. The shaft heaters create optimal conditions for dioxines formation, which emit into atmosphere. It was shown, that accounting Russian economic and nature conditions, the metal charge drying and heating in modified charging buckets by the heat of burnt natural gas or other additional fuel is optimal. The proposed technical solution enables to burnt off organic impurities ecologically safely, to melt down ice, to evaporate the wetness in the scrap as well as to heat the charge as enough as the charging logistics enables it. The method was implemented at several Russian steel plants. Technical and economical indices of scrap metal drying in buckets under conditions of EAF-based shop, containing two furnaces ДСП-100, presented.

Sign in / Sign up

Export Citation Format

Share Document