direct reduction of iron ore using natural gas

Home/direct reduction of iron ore using natural gas

direct reduction of iron ore using natural gas

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

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.

Ironmaking 101 – From Ore to Iron with Smelting and Direct ...

As a response to this, steelmaking processes based on the direct reduction of iron ore by hydrogen produced via water electrolysis powered by renewable electricity have been suggested.

WORLD DIRECT REDUCTION STATISTICS

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 CO 2 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.

USA - Use of reducing gas by coal gasification for ...

Nov 03, 2016· The direct reduction process. HBI is the product of reducing iron ore with natural gas. This is called the direct reduction process and is an environmentally-friendly production process; a DRI plant uses natural gas which is more environmentally sound than coke. The reduction process takes place in the reduction tower.

Ironmaking 101 – From Ore to Iron with Smelting and Direct ...

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.

USE OF REDUCING GAS BY COAL GASIFICATION FOR DIRECT IRON ...

Nov 03, 2016· The direct reduction process. HBI is the product of reducing iron ore with natural gas. This is called the direct reduction process and is an environmentally-friendly production process; a DRI plant uses natural gas which is more environmentally sound than coke. The reduction process takes place in the reduction tower.

Direct Reduced Iron and its Production Processes – IspatGuru

Oct 17, 2017· Direct Iron Reduction. Figure 3: Direct iron reduction shaft furnace Source: MIDREX® Direct iron reduction processes reduce iron ore to sponge iron without a molten metal step. Direct iron reduction or sponge iron production was practiced in ancient times. The sponge iron was then hammered to remove impurities and produce iron weapons and tools.

The Process - Plant - Texas LLC

Aug 17, 2015· Using smaller pellets. Conclusions. Iron ore reduction by the gaseous products of partial combustion of methane in a porous media was experimentally and numerically studied. To achieve this purpose, a porous media burner capable of generating an upstream propagation wave for the rich combustion of natural gas-air mixture was designed and built.

Direct Reduction of Iron Ore | Article about Direct ...

In addition, the Corex process can use iron oxides containing up to 80% lump ore and uses non coking coal directly as a reducing agent. In the Reduction shaft the iron ore, along with limestone and dolomite additives, is added and then reduced by reduction gas into 95% direct reduced iron, DRI.

Extraction of Iron from its ores, Iron dressing, Reduction ...

A method for direct reduction of iron in a shaft reduction furnace. Spent gas from the furnace is upgraded in reductant by removal of CO 2 and water to form an upgraded gas. A fossil fuel is gasified to produce a hot gas which is tempered with a first stream of upgraded gas. The mixture is desulfurized by reaction with lime to produce hot desulfurized gas.

USA - Method for the direct reduction of iron using ...

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.

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

A method for direct reduction of iron in a shaft reduction furnace. Spent gas from the furnace is upgraded in reductant by removal of CO 2 and water to form an upgraded gas. A fossil fuel is gasified to produce a hot gas which is tempered with a first stream of upgraded gas. The mixture is desulfurized by reaction with lime to produce hot desulfurized gas.

The HBI direct reduction process - voestalpine

The direct reduction process removes this bonded oxygen in the iron ore pellets at elevated temperatures by a reducing gas, which is produced from natural gas. The reduction occurs in a sealed low-pressure reduction reactor, which is not vented to the atmosphere.

USA - Method for the direct reduction of iron using ...

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 its solid state using either coal or natural gas …

Corex Process - Wikipedia

Apr 09, 2017· Midrex Process for Direct Reduction of Iron Ore. Midrex is an ironmaking process, developed for the production of direct reduced iron (DRI). It is a gas-based shaft furnace process is a solid state reduction process which reduces iron ore pellets or lump ore into DRI without their melting using reducing gas generally formed from natural gas.