24 hours for you

direct reduction of iron ore using natural gas

Home - direct reduction of iron ore using natural gas

Greenhouse Gas Emissions From Major Industrial

Iron ore reduction with hydrogen. Direct reduction of iron ore to a low carbon product for use in steel manufacture is already practised. Reduction normally takes place in natural gas or a coal derived reducing gas containing CO, CO2 and H2. Direct reduced iron (DRI) has been developed as a low-cost high-quality alternative to scrap steel. DRI is physically similar to iron ore and contains the minerals

Get Price

BHP issues first tender for gas-powered iron ore carriers

Jul 12, 2019BHP on Friday said it had released the world's first tender for LNG-fuelled transport to carry up to 27 million tonnes, or about 10%, of its iron ore as it seeks to position itself at the

Get Price

Economic aspects of direct reduction of iron ore in Illinois

Somedirect-reductionprocessesusecoke,char,anthracitefines,orcoal as areducingagent.Unliketheblast-furnaceprocess,direct-reduction processes do notrequire a pure and high-strength coke so that coalsconsideredunsuitable

Get Price

What is the difference between direct reduction and

direct reduction FeO C = Fe CO. indirect reduction FeO CO = Fe CO2. I don't think that is what the terminology 'direct reduction' means in this context.

Get Price

Voestalpine AG's Texas HBI Facility a Natural Gas Success

Oct 31, 2016Austria in Texas. Using natural gas rather than coal to reduce the iron ore will cut the emissions from steel created from their HBI by roughly 5%. With a projected consumption rate of 23 million BTUs of compressed natural gas (CNG) per year, the plant will use the equivalent of what the entire nation of Austria consumes in one year.

Get Price
Authors Subhasisa NathAbout Extractive metallurgy

A study on the accretion formation in DRI kilns and

sponge iron. 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). Sponge iron is produced primarily both by using non-coking coal and natural gas as reductant and therefore classified as

Get Price

US3853538A Use of reducing gas by coal gasification for

A method employing reducing gas in an ore reducing furnace, which reducing gas is obtained from the gasification of coal is disclosed in which part of the unused reducing components from the reducing furnace is recirculated, and its CO2 content reduced, and in which the composition of the original gas coming from the coal gasification process is enriched while mixing it with the recycled gas.

Get Price

Detailed Modeling of the Direct Reduction of Iron Ore

36 In a DR shaft furnace, a charge of pelletized or lu mp iron ore is loaded into the top of the furnace 37 and is allowed to descend by gravity through the reducing gas. The reducing gas, comprised of 38 hydrogen and carbon monoxide (syngas) obtained by the catalytic reforming of natural gas, flows 39 upwards through the ore bed. Reduction of

Get Price

Ironmaking 101 From Ore to Iron with Smelting and Direct

Oct 17, 2017Direct iron reduction processes produce a form of sponge iron called direct reduced iron (DRI). Smelting reduction and direct iron reduction can reduce energy input, lower greenhouse gas emissions and minimize slag byproduct generation, resulting in

Get Price

Study of Reduction kinetics of Iron ore Pellets by

direct reduction of iron ore in the form of lump or pellet. In direct reduction (DRI) process,there a good flexibility of using different kind of reductants like lower grade non coking coal, char coal, natural gas etc. The fast depletion of high grade cooking coal, reserves restricts the use of coke in

Get Price

Potential for CO2 emissions reduction in MIDREX direct

As the table shows, natural gas emits only about one-half the CO2 per unit of energy as does coal. 9 As Reductant C O 2 →CO 2 Carbon can remove one mole O2 and produce one mole CO2 CH 4 2O 2 →CO 2 2H 2O Methane can remove two mole O2 and produce one mole CO2 These characteristics make natural gas an ideal energy source for ironmaking.

Get Price

Direct Reduced Iron (DRI) . QITAPANDI-Home

Direct-reduced iron (DRI), also called sponge iron, is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. The reducing gas is a mixture majority of hydrogen (H2) and carbon monoxide (CO) which acts as reducing agent.

Get Price

Method of using a methane-containing gas for reducing iron

Mar 03, 1981A method of using coke oven gas, and more generally gaseous mixtures containing up to about 30% by volume of methane, for the direct gaseous reduction of iron ore in a vertical shaft, moving bed reactor. In addition to the usual reduction zone and cooling zone, the reactor is provided with an intermediate reforming zone.

Get Price

Construction of the world's largest HBI plant in Corpus

hot-briquetted iron (HBI) MIDREX direct-reduction plant in Texas for the Austrian steel producer voestalpine. Known as the "Go West project," the plant's environmentally friendly process will reduce iron ore using competitively priced American natural gas. The ground-breaking ceremony took place in April 2014 and the plant is due to

Get Price
Published in Ironmaking Steelmaking 2011Authors K S Abdelhalim M I Nasr A A ElgeassyAbout Pelletizing

Iron and Steel Industry The Canadian Encyclopedia

Dec 14, 2006Because there is no separation of iron from gangue in the reduction facility, high-grade ores or concentrates (90 per cent iron) must be used. Many of these solid-state processes use natural gas as the fuel and as the reducing agent (carbon monoxide and hydrogen).

Get Price

SINTERING AND PELLETISATION OF INDIAN IRON ORES

The major advantages of using sinter in BFs are Use of iron ore fines, coke breeze, metallurgical wastes, lime, dolomite for hot metal production Better reducibility and other high temperature properties Increased BF productivity due to higher softening temperature and lower softening melting temperature range.

Get Price

Investigation of direct reduction of lumps from natural

(English) Manuscript (preprint) (Other academic) Abstract The effects of the main characteristics of hematite natural ore lumps such as weight and microstructure and the parameters of the direct reduction process (gas flow rate and temperature) on the reduction degree and thermo-mechanical degradation of iron ore lumps were investigated.

Get Price

Reduction Of Iron Ore lineabianca.ch

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.

Get Price

direct reduction of iron ore using natural gas bgcatering

Direct reduced iron (DRI), also called sponge iron, is produced from the direct reduction of iron The direct reduction process uses pelletized iron ore or natural lump ore. In most cases the DRI plant is loed near natural gas source as it is more cost effective to ship the ore rather than the gas.

Get Price

Treatment of Mixed Sulfide Oxide Ores of Copper

The solution, containing copper, together with iron, alumina and the other impurities that dissolve from the ore, is passed through towers in contact with sulfur dioxide, to reduce the iron to the ferrous state. The solution is then sent to the electrolytic cells and refined copper is produced directly.

Get Price

Iron and steel iea

Direct reduction based on hydrogen. The use of hydrogen from renewable electricity in this process technology would enable a 98% reduction in CO2 emissions compared with the reference BF‑CO method. Technology principles An alternative to BF‑CO steel production, the DRI route reduces solid iron ore using carbon monoxide and hydrogen.

Get Price

Emerging Technologies for Iron and Steelmaking

ADVANCES IN IRON AND STEELMAKING. In addition to supplying carbon for heat and the reduction of iron ore, coke must also physically support the burden in the blast furnace shaft and remain permeable to the hot air blast entering from the bottom. Coke-making

Get Price

Detailed Modeling of the Direct Reduction of Iron Ore

hydrogen and carbon monoxide (syngas), and obtained by the catalytic reforming of natural gas, flows upwards, through the ore bed. Reduction of the iron oxides occurs in the upper section of the furnace, at temperatures up to 950 C. A transition section is found below the reduction section; this section is

Get Price

Can You Make a Wind Turbine Without Fossil Fuels? Energy

Feb 25, 2014The blast furnace or direct reduction routes, and these processes are fundamentally dependent on the provision of large amounts of coal or natural gas. A modern blast furnace. The blast furnace route is used for the majority of steel production globally. Here coal is key. Iron ore is unusable, largely because it is mostly iron oxide.

Get Price
Authors Raymond J Longbottom Leiv KolbeinsenAffiliation Norwegian University of Science and TechnologyAbout Kinetic energy

CiteSeerX — Reduction of Iron Ore with Non Coking Coal

The reduction of iron ore with non coking coal or gas below the melting point of the iron produced is classified as Direct Reduction process and product referred to as Direct Reduced Iron (DRI).The iron making reactions in iron oxide plus carbon involve the disappearance of two solid phases (iron oxide and carbon) and formation of two phases

Get Price

Cost Effectiveness Analysis of HYL and Midrex DRI

As the iron ore moves down the furnace. through gravity flow, the gas rises through the material column and removes oxygen from the iron carriers. This forms the direct reduced iron (DRI) which is typically composed of 90 to 94% iron.

Get Price

US miner Cliffs sees global iron ore pellet shortage, HBI

Direct charge pellets help cut coke and sintering emissions, while the industry increasingly looks to use more natural gas and experiment with hydrogen for iron reduction. DRI plants are acutely dependent on pellets, unlike blast furnaces, which may have more optionality with sinter and lump ores.

Get Price

Experimental Research on the Novel Process of Iron Ore

In this paper, the direct reduction of iron ore pellets was carried out by simulating the typical gas composition in coal gasification process, Midrex and Hyl Ⅲ process, the influence of gas composition and temperature on reduction was studied. Results show that the proportion of H2 increasing is helpful to improve the reduction rate, while when H2/CO1.6, changes of H2 content will have

Get Price

Steel Production by Direct Reduction Iron

A Direct Reduction Iron (DRI) process for iron ore has been defined as a process in which iron oxides are reduced to metallic iron without melting. In a broader sense, this term has been applied to include any iron making process other than the conventional blast furnace.

Get Price

vacancy in sponge iron hyl equipment ristorantesatuedda

direct reduction of iron ore using natural gas NTNU. Direct reduction iron (DRI), also called sponge iron, is produced from direct source for HYL is the same as for Midrex, although in HYL the reducing section .

Get Price

Get a Free Quote

If you are interested in our company or products, welcome to visit our company or local offices; you can also get contact with us through online consulting, demand table submission, e-mails and telephones. Our staff shall wholeheartedly provide product information, application knowledge and good service for you.