ppt on direct reduction of iron ore
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ppt on direct reduction of iron ore

Direct reduced iron final.ppt - SlideShare

Jul 15, 2015  Direct reduced iron final.ppt 1. Daewoo International Corporation 2. History Established as Daewoo Corporation (1967) Became member company of POSCO Group (2010) Major Business International Trading Project Organizing Natural Resource Development Manufacturing : Textile, Cement, Steel Processing etc Global Network Total : 95 - Asia 46, Middle East 7, Africa 12, Europe 9 CIS 8,

Seminar on HYL Process - SlideShare

Dec 23, 2013  Generally all process are used the coal for reduction of iron ore. In substitution of coal we can use the natural gas and some fuel gas for reduction of iron ore and production of DRI commercially in HYL. 4. DRI is the Direct reduction of Iron Ore by some reductant. The Reductant may be the Solid or Gas.

Direct Reduced Iron (DRI) Production Plant

Direct Reduced Iron (DRI) Production Plant NIPPON STEEL ENGINEERING CO., LTD. Basic Concept or Summary S-16 u A direct reduced iron (DRI) production plant is a shaft reduction furnace to produce DRI with large metal iron content by directly reducing iron ore (or iron ore pellets) with reducing gases.

Direct reduced iron - Wikipedia

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) to iron by a reducing gas or elemental carbon produced from natural gas or coal. Many 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 point of iron. Reduced iron derives its name from these processes, one example bein

(PDF) i) Direct Reduced Iron: Production

This product is known as direct reduced iron (DRI) or sponge iron. Processes that produce iron by reduction of iron ore (in solid state) below the melting point are generally classified as DR ...

3A3. Direct Iron Ore Smelting Reduction Process (DIOS)

The Direct Iron Ore Smelting Reduction Process (DIOS) directly uses noncaking coal in a powder or granular form, and iron ore without the use of coke or a sintering process, which are normally required in blast furnace processes. The noncaking coal is directly fed to a smelting reduction furnace, while the iron ore is

Direct Reduction of Iron Ore with Green Hydrogen

Direct reduction of iron ore refers to the conversion of solid iron ore to metallic iron without conversion to the liquid phase [37]. Majority of the direct reduced iron (DRI) [38] is produced by reacting iron oxide with hydrocarbon-based reducing gases produced from reforming natural gas

Direct Reduced Iron - Midrex Technologies, Inc.

Apr 14, 2021  Direct Reduced Iron. The need for a dependable and clean source of iron will continue to increase as steelmaking grows and expands globally. Regardless of the steelmaking route, there is a form of direct reduced iron (DRI) for every application. DRI is a premium ore-based metallic (OBM) raw material made by removing chemically-bound oxygen from ...

Direct reduced iron process - tec-science

The reduction gases only dissolve oxygen from the iron ores. This causes the iron ores to crack on the surface. The appearance resembles a porous sponge, which is why the deoxidized and thus strongly ferrous iron ore is also called sponge iron. Sponge iron is a highly ferrous ore from the direct reduced iron

Seminar on HYL Process - SlideShare

Dec 23, 2013  Generally all process are used the coal for reduction of iron ore. In substitution of coal we can use the natural gas and some fuel gas for reduction of iron ore and production of DRI commercially in HYL. 4. DRI is the Direct reduction of Iron Ore

Detailed Modeling of the Direct Reduction of Iron Ore in a ...

The direct reduction (DR) of iron ore, usually followed by electric arc steelmaking, is an alternative route to the standard, blast furnace, basic oxygen route for making steel. Annual DR iron production (86 Mt in 2017) remains small, compared to the production of 1180 Mt of blast furnace pig iron [1].

3A3. Direct Iron Ore Smelting Reduction Process (DIOS)

The Direct Iron Ore Smelting Reduction Process (DIOS) directly uses noncaking coal in a powder or granular form, and iron ore without the use of coke or a sintering process, which are normally required in blast furnace processes. The noncaking coal is directly fed to a smelting reduction furnace, while the iron ore is

Direct Reduction of Iron Ore with Green Hydrogen

Direct reduction of iron ore refers to the conversion of solid iron ore to metallic iron without conversion to the liquid phase [37]. Majority of the direct reduced iron (DRI) [38] is produced by reacting iron oxide with hydrocarbon-based reducing gases produced from reforming natural gas

(PDF) Direct Reduction of Iron-Ore in Fluidized Beds

Nov 01, 2020  With Posco of South Korea, Siemens VAI Metals Technologies has successfully developed the FINEX (R) process, a smelting reduction based on the direct use of iron ore fines to produce hot metal.

Direct Reduced Iron - Midrex Technologies, Inc.

Apr 14, 2021  Direct Reduced Iron. The need for a dependable and clean source of iron will continue to increase as steelmaking grows and expands globally. Regardless of the steelmaking route, there is a form of direct reduced iron (DRI) for every application. DRI is a premium ore-based metallic (OBM) raw material made by removing chemically-bound oxygen from ...

DRI production International Iron Metallics Association

DRI production. Direct reduction of iron is the removal of oxygen from iron ore or other iron bearing materials in the solid state, i.e. without melting, as in the blast furnace. The reducing agents are carbon monoxide and hydrogen, coming from reformed natural gas, syngas or coal. Iron ore is used mostly in pellet and/or lumpy form.

Direct Reduction Process - an overview ScienceDirect Topics

The basis of the direct reduction process is that solid sponge iron is produced by removing oxygen from the ore in a shaft furnace, rotary kiln furnace or fluidised bed. Sponge iron can be produced in the form of Direct Reduced Iron (DRI), Hot Briquetted Iron (HBI) and Cold Briquetted Iron (CBI); also Low Reduced Iron (LRI), which is pre ...

Direct Reduction Iron Production Technology Servomex

Direct reduction iron production Expert gas analysis solutions for your DRI process and emission monitoring . Accurate gas measurements play an integral role in ensuring direct reduction iron (DRI) plants operate at the highest levels of efficiency while achieving low emissions targets.

Iron ore - Wikipedia

The two main methods of recycling iron from iron ore tailings are magnetizing roasting and direct reduction. Magnetizing roasting uses temperatures between 700 and 900 °C for a time of under 1 hour to produce an iron concentrate (Fe 3 O 4 ) to be used for iron smelting.

MIDREX Processes - KOBELCO

Either lump ore, or pellets prepared for direct reduction ironmaking, are charged as raw material from the top of a shaft furnace. The ore is reduced inside the furnace and the reduced iron is discharged from the bottom of the furnace. Reductant gas blown in from about the middle of the shaft furnace reduces

Direct Reduced Iron and its Production Processes – IspatGuru

Direct reduced iron (DRI) is the product which is produced by the direct reduction of iron ore or other iron bearing materials in the solid state by using non-coking coal or natural gas. Processes which produce DRI by reduction of iron ore below the melting point of the iron are normally known as the direct reduction (DR) processes.

Direct reduction of Iron Ore - K1-MET

Iron ore is usually reduced to directly reduction iron (DRI) by using coal (C,CO) or hydrogen. During the previous K1-Met period at detailed single particle model for this reduction process has been developed and validated against single particle measurements. In this project, we developed a comprehensive model for the simulation of direct ...

ON THE DIRECT REDUCTION OF IRON ORE IN ROTARY KILN

Since in the rotary kiln the reduction of iron ore takes place topochemically5, the rate of oxygen removal from t single iron ore particle can be expressed as: of total oxygen removed froc the charge 1,ed, Hence, PCO PCO2/K, +1.-1/3-1.4 f-3 . ° * o Rate of Carbon Gasifications For temperature upto

Detailed Modeling of the Direct Reduction of Iron Ore in a ...

The direct reduction (DR) of iron ore, usually followed by electric arc steelmaking, is an alternative route to the standard, blast furnace, basic oxygen route for making steel. Annual DR iron production (86 Mt in 2017) remains small, compared to the production of 1180 Mt of blast furnace pig iron [1].

Detailed Modeling of the Direct Reduction of Iron Ore in a ...

1 Article 2 Detailed Modeling of the Direct Reduction of Iron 3 Ore in a Shaft Furnace 4 Hamzeh Hamadeh 1,2, Olivier Mirgaux 1,2 and Fabrice Patisson 1,2,* 5 1 Institut Jean Lamour, CNRS, Université de Lorraine, 54011 Nancy, France; [email protected] 6 lorraine (H.H.); [email protected] (O.M.) 7 2 Laboratory of Excellence on Design of Alloy Metals for Low-Mass Structures ...

ON THE DIRECT REDUCTION OF IRON ORE IN ROTARY KILN

Since in the rotary kiln the reduction of iron ore takes place topochemically5, the rate of oxygen removal from t single iron ore particle can be expressed as: of total oxygen removed froc the charge 1,ed, Hence, PCO PCO2/K, +1.-1/3-1.4 f-3 . ° * o Rate of Carbon Gasifications For temperature upto

DRI production International Iron Metallics Association

DRI production. Direct reduction of iron is the removal of oxygen from iron ore or other iron bearing materials in the solid state, i.e. without melting, as in the blast furnace. The reducing agents are carbon monoxide and hydrogen, coming from reformed natural gas, syngas or coal. Iron ore is used mostly in pellet and/or lumpy form.

Direct reduction of Iron Ore - K1-MET

Iron ore is usually reduced to directly reduction iron (DRI) by using coal (C,CO) or hydrogen. During the previous K1-Met period at detailed single particle model for this reduction process has been developed and validated against single particle measurements. In this project, we developed a comprehensive model for the simulation of direct ...

Direct Reduction of Iron Ore SpringerLink

Nov 27, 2014  In the search for a pure, available iron source, steelmakers are focusing their attention on Directly Reduced Iron (DRI). This material is produced by the reaction of a low gangue iron ore with a hydrocarbonaceous substance. Commercially, DRI is generated in four different reactors: shaft (moving-bed), rotary kiln, fluidized bed, and retort (fixed-bed).

Cost Effectiveness Analysis of HYL and Midrex DRI ...

Apr 27, 2016  agglomerate fine iron ore dust in conjunction with other material (typically limestone) to form a product that can be added to the blast furnace. Another alternative to hot molten iron making is the direct reduction method. In this method, iron is reduced in

MIDREX Processes - KOBELCO

Either lump ore, or pellets prepared for direct reduction ironmaking, are charged as raw material from the top of a shaft furnace. The ore is reduced inside the furnace and the reduced iron is discharged from the bottom of the furnace. Reductant gas blown in from about the middle of the shaft furnace reduces

Direct reduction of iron from ore SpringerLink

Direct reduction of iron from ore. ... Iron; Direct Reduction; Access options Buy single article. Instant access to the full article PDF. US$ 39.95. Price includes VAT for USA. Subscribe to journal. Immediate online access to all issues from 2019. Subscription will auto renew annually.

Direct reduced iron and production of DRI part 2 - YouTube

Mar 11, 2016  The presentation describes different processes for the production of direct reduced iron.

Coal based Direct Reduction Rotary Kiln Process – IspatGuru

The metallic iron in this process is produced by the reduction of iron oxide below the fusion temperature of iron ore (1535 deg C) by utilizing carbonaceous material present in the non-coking coal. As the iron ore is in direct contact with the reducing agent throughout the reduction process, it is often termed as direct reduced iron (DRI).

The increasing role of direct reduced iron in global ...

The Direct Reduction process Direct reduction processes can be divided roughly into two categories, gas-based, and coal-based. In both cases, the objective of the process is to drive off the oxygen contained in various forms of iron ore (sized ore, concentrates, pellets, mill scale, furnace dust etc.), in order to convert the ore,

Reduction of Iron Oxides with Hydrogen—A Review ...

Reduction with hydrogen, in the best case produced via renewable energies, is a future‐minded alternative to commonly used fossil fuels. Direct reduction processes, which reduce iron ore to metallic iron without any liquid phase, especially have the possibility to use a high percentage of hydrogen in the reducing gas mixture.

Direct Reduction of Iron Ore Article about Direct ...

The Hybrit process is based on direct reduction of iron ore using fossil free energy and hydrogen gas (H2). Included is a project that aims to, for the first time, use almost pure hydrogen on an industrial scale for a major step in the steel-making process, the direct reduction of iron ore, which usually requires the use of a reducing gas ...

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