ppt on dri in eaf

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Iron and Steel Manufacturing - Savoir plus

Steel can also be made in an electric arc furnace EAF from scrap steel and, in some cases, from direct reduced iron BOF is typically used for high-tonnage production of carbon steels, while the EAF is used to produce carbon steels and low-tonnage specialty steels An emerging technol-ogy, direct steel manufacturing, produces steel...

PDF Influence of direct reduced iron on the energy , - Savoir plus

Characteristics of direct reduced iron input to EAF operation A brief comparison between the typical operation parameters of some scrap and DRI-based EAFs are given in T able 4 with mean...

Decarbonising steelmaking technology options and regional , - Savoir plus

Nov 11, 2020 0183 32 EAF / IF share DRI in EAF 2 BF plant age3 years China 996 53 90 10 1 12 India 111 6 44 56 57 18 Developed APAC 199 11 71 29 1 37 Other APAC 481 3 31 69 5 6 European Union 159 8 59 41 6 45 CIS and Other Europe 140 7 61 39 9 50 North America 120 6 32 68 14 53 South America 41 2 67 33 7 34 Middle East and Africa 61 3 10 90 87 42 Global ....

PDF The use of DRI in a consteel® EAF process - Savoir plus

While some conventional electric arc furnaces EAFs in the US are already using cold direct reduced iron DRI as a source of iron units for their charge, the use of DRI for a ,...

THE SMART CHOICE - Savoir plus

EAF, based on the use of DRI 1958 Batch charging of DRI to the EAF at 600 176 C 1965 Use of more than 30 DRI in an EAF charge, eventually increasing in stages up to 100 by 1972 1968 Continuous feeding of DRI to the EAF Computerize process control system put into use 1969 Use of y slag practic 1970 Design of pellets for direct reduction...

Hydrogen in steel production what is happening in Europe , - Savoir plus

May 26, 2021 0183 32 Natural gas-based DRI-EAF 177 095 tCO 2 /tSteel reduces emissions by 177 42 compared to BF-BOF 177 165 tCO 2 /tSteel 11 While that is a reduction in emissions compared to the worst performing process coal-based steal making , driving the emissions down to zero will depend on the use of hydrogen produced only with renewable electricity...

Direct reduced iron - Savoir plus

Direct reduced iron DRI , also called sponge iron, is produced from the direct reduction of iron ore in the form of lumps, pellets, or fines into iron by a reducing gas or elemental carbon produced from natural gas or coalMany ores are suitable for direct reduction Direct reduction refers to solid-state processes which reduce iron oxides to metallic iron at temperatures below the melting ....

Effect of Direct Reduced Iron DRI on Dephosphorization , - Savoir plus

May 29, 2018 0183 32 We investigated the effect of direct reduced iron DRI addition on dephosphorization of molten steel by electric arc furnace EAF slag at 1823 K 1550 C Various phenomena such as CO gas evolution and slagmaking by gangue oxides in DRI ,...

ELECTRIC ARC FURNACE AC PART 1 Layout Components - Savoir plus

May 08, 2019 0183 32 1 FURNACE STRUCTURE 11 LOWER BOTTOM SHELL A typical EAF has a cylindrical shape It s composed by the lowest part, the bottom, that has a spherical shape like a dishIt s connected to a cradle ....

ArcelorMittal signs MoU with the Spanish Government , - Savoir plus

The new DRI - which will be the first of its kind in Spain - and EAF will be in production before the end of 2025 To maximize the emissions reduction potential, ultimately green hydrogen will be used to reduce the iron ore in the DRI, with the EAF powered by renewable electricity...

Feasibility study of low - Savoir plus

furnace BOF or production of direct reduced iron DRI followed by electric arc furnace EAF It is also possible to use only the EAF when recycling scrap Nevertheless, the BF BOF route is the main one All the existing DRI processes have produced 87 Mt of steel in 2017, which corresponds to 5 of the overall steel production 16,17...

Potential for CO2 emissions reduction in MIDREX direct , - Savoir plus

Total DRI Shipment DRI Ratio in EAF 54 World DRI production was 74 million tons in 2012 World DRI shipment increase gradually due to strong demands of DRI in advanced country Total DRI shipment was 148 million tons in 2012 DRI ratio in EAF becomes 16 of total EAF charging materials...

Electric Arc Furnace STEEL MAKING Steelmaking Steel - Savoir plus

1 Direct electric arc furnace 2 Indirect electric arc furnace 12/30/2013 AMMASI A CSIR- NML India DC EAF 12/30/2013 AMMASI A CSIR- NML India Furnace charging Melting Refining De-slagging Tapping Furnace turnaround 12/30/2013 AMMASI A CSIR- NML India 7 To select the grade of steel Steel scrap 60 to 80 Sponge iron DRI and Pig iron ....

AISI Electric Arc Furnace Steelmaking - Savoir plus

Electric Arc Furnace Steelmaking By Jeremy A T Jones, Nupro Corporation continued Furnace charging Melting Refining De-slagging Tapping Furnace turn-around Top Refining Refining operations in the electric arc furnace have traditionally involved the removal of phosphorus, sulfur, aluminum, silicon, manganese and carbon from the steel...

ArcelorMittal plans DRI - Savoir plus

Mar 29, 2021 0183 32 ArcelorMittal plans DRI-EAF plants for Bremen and Eisenhuttenstadt ArcelorMittal is planning to build a large-scale industrial plant for the direct reduction of iron ore DRI and electric arc furnace EAF -based steelmaking at its site in Bremen in Germany The world s biggest steelmaker is also planning a DRI pilot plant and an electric arc ....

Decarbonization challenge for steel - Savoir plus

BF /basic oxygen furnace BOF or an electric arc furnace EAF While integrated players produce steel from iron ore and need coal as a reductant, EAF producers use steel scrap or direct reduced iron DRI as their main raw material As the predominant production method in Europe is the conventional, coal-dependent BF/BOF process, the need to ....

Midrex Process Overview - Savoir plus

Nu-Iron Trinidad 2006 1,600,000 Cold DRI Operating Al-Tuwairqi Saudi Arabia 2007 1,000,000 Cold DRI Operating Essar Module V India 2007 1,500,000 Hot DRI HBI Operating , DRI volume Mtpy 140 168 EAF heat size t 200 200 Feed mix DRI/scrap 90/10 90/10 DRI charge temp ºC 25 600 Tap-to-tap time min 65 54...

Electric Arc Furnace EAF SubsTech - Savoir plus

May 31, 2012 0183 32 Dr Dmitri Kopeliovich Electric Arc Furnace EAF is a steel making furnace, in which steel scrap is heated and melted by heat of electric arcs striking between the furnace electrodes and the metal bath Two kinds of electric current may be used in Electric Arc Furnaces direct DC and alternating AC Three-phase AC Electric Arc Furnaces with graphite electrodes are commonly used ,...

The future of steelmaking - Savoir plus

2 is used to reduce iron ore pellets to direct reduced iron DRI, or sponge iron The reaction takes place in a shaft furnace, a type of furnace that uses gas reductants to make DRI The operating temperature can be fairly low, around 800 176 C The DRI is then fed into an EAF and turned into steel by further processing it and adding carbon...

PDF Electric Arc Furnace - Savoir plus

Figure 158 Cooled parts of the electric arc furnace a Panels making the upper part of the shell, a Panels making the upper part of the shell, b roof, and c off-gas duct...

Decarbonization in steel McKinsey - Savoir plus

Jun 03, 2020 0183 32 Based on the use of green hydrogen as well as renewable electricity from wind, solar, or water, a DRI/EAF setup enables nearly carbon-neutral steel production In more detail, a large-scale, green hydrogen-based DRI/EAF steel production process involves the following core process steps Green hydrogen production...

Models for EAF energy efficiency - Savoir plus

DRI EAF process by a full multiple linear regression analysis of data from over 1,100 single heats The model is tailor-made for the investigated EAF and on the one hand includes new co-efficients for DRI metallisation, carbon content of the DRI and so on, and on the other hand is missing co-efficients for burner gas or post-combustion...

Impact of Hydrogen DRI on EAF Steelmaking - Savoir plus

TABLE III identifies some EAF CO 2 sources 9 , from power generation 50-70 energy input to the EAF see Figure 7 to combustion of C from the bath, dirt on scrap, in-situ C liquid steel, scrap, PI, DRI, HBI, MagCarbon bricks, electrodes, charge C, injection ,...

Steel industry in India Potentials and technologies for , - Savoir plus

ad_Stahlindustrie Indien_Final report_3/12ppt On a global level dominating routes are blast furnace/BOF and electric arc furnace with continuous casting Source Worldsteel , ThyssenKrupp 95 70 66 29 5...

Advances in Steelmaking PDF Steelmaking Steel - Savoir plus

f Since EAF steelmaking is primarily scrap/DRI based and both these materials have relatively low levels of residual impurities, the extent of refining is much less than in BOH steelmaking As a process, EAF is much more versatile than BOH and can make a wide range of steel...

Use of DRI and HBI in steel making plants - Savoir plus

The Direct Reduced Iron DRI is usually used in its briquette form Hot Briquetted Iron HBI for easier transportation and it can be charged in the blast furnace BF , inside the converters BOF and in the Electric Arc Furnace EAF The cycle of EAF is based on the metal scrap melting The HBI manufacturing process involves the usage of a ....

Iron Ore Pellets North America, BF and DR Grade, Supply , - Savoir plus

Lazaro Cardenas 1 3,500 3,500 0 on site DRI/EAF consump Rio Tinto IOC Lab City 12,500 0 12,500 entiire plant served by flot Ternium Las Ecinsas 3,500 3,500 0 no outside sales JV AM/Ternium Pena Colarada 4,000 4,000 0 VALE Tubarao No 1,2 5,200 0 5,200 may be shutdown ³ Hispanobras No 4 3,800 1,900 1,900 AM portion used for DR...

DRI Products Applications - Savoir plus

DRI USE IN THE EAF DRI Products Applications 6 DRI is ideally suited for use as either a replacement or a supplement for scrap in the EAF DRI provides EAF operators the flexibility to tailor their furnace charges to achieve the desired product quality at the lowest cost per ton of liquid steel...

Fact sheet Energy use in the steel industry - Savoir plus

Steel made in an EAF uses electricity to melt steel scrap Depending on the plant configuration and availability of steel scrap, other sources of metallic iron such as direct-reduced iron DRI or hot metal can also be used Alloying materials are used to adjust the steel to the desired chemical composition Electrical energy can be ....