Direct reduced iron (DRI) process In addition to the process route via the blast furnace process, there is another option for extracting crude steel from iron ores using the so-called direct reduced iron (DRI) process (secondary route).
Direct reduction (DR): Direct reduction involves the production of solid iron from iron ores and a reducing agent (e.g., natural gas). The solid product is called DRI and is mainly applied as feedstock in EAF. The direct reduction process has been commercialized since the 1970s and a variety of processes have been developed. (2)
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.
Direct Reduced Iron (DRI) has become an ever increasing, important source of raw material in the production of steel. DRI is produced by the reduction of iron
This technology is aimed at blast furnace-operating integrated steel mills and regions where there is no production of natural gas. ENERGIRON Direct Reduction (DR) technology, jointly developed by Tenova HYL and Danieli, is one of the most viable gas-based DR technologies.
10/09/2020· Since 1969, there have been nearly 100 MIDREX® Shaft Furnace Direct Reduction modules built in 21 countries worldwide. Click here to download the MIDREX Plant list. Virtual Plant Tours. Explore a real-life MIDREX HBI Plant through our 360° virtual reality of voestalpine Texas and LGOK HBI-3. Experience breathtaking views from the shaft furnace tower or glimpse into the
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)
Direct reduction processes may be classified, according to the type of the reducing agent used, to gas-based and coal-based processes. In 2000, DRI produced from the gas-based processes accounted for 93%, while the coal-based processes produced 7%. Gas-based processes have shaft furnaces for
10/09/2020· 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 iron oxide pellets and lump ores without melting. DRI is high in iron content and low in copper and other undesirable metals, tramp elements, and nitrogen content. It is used to make a
Direct Reduced Iron (DRI) has become an ever increasing, important source of raw material in the production of steel. DRI is produced by the reduction of iron oxide to metallic iron. This process occurs without melting. A reducing gas with high CO and H2 concentrations is reacted with the iron oxide feed reducing the iron oxide and consequently oxidising the CO and H2 of the reducing gas. This
ENERGIRON Direct Reduction (DR) technology, jointly developed by Tenova HYL and Danieli, is one of the most viable gas-based DR technologies. NIPPON STEEL ENGINEERING CO., LTD., Tenova HYL and Danieli have combined ENERGION DR technology with blast furnace technology and syngas (by-product gas and coal gasification) technologies to develop breakthrough ironmaking technologies and
05/09/2020· Direct reduced iron (DRI) is a type of alternative iron made by heating iron ore so that the oxygen and carbon burns off while the temperature is kept below iron's melting point. Direct-reduced iron is also known as sponge iron and is sold as briquettes, lumps, or pellets. It is typically used in smaller scale steel mills to enhance the condition of the steel that is manufactured. Direct
The new direct reduction plant ordered by the Russian steelmaker OMK will be installed at Vyksa Steel Works. Part of the new complex for the production of ss, seamless pipe and rail wheels, it will produce 2.5 Mtpy of top-quality Direct Reduced Iron (DRI) -virgin iron units used in EAF to produce the most demanding steel grades. The OMK investment and selected process route -Energiron DRI
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
What is direct-reduced iron (DRI) Most of the iron used by humanity goes through the process of direct reduction. The main and most economical method of recovering iron from its ore known is the carbothermal method of direct reduction from the ore by means of carbon-bearing materials: FeХOY+C=Fe+CO2 The oldest and most common method is to smelt iron (pig iron) in hearths where
iron ore reduction technology operates entirely in the solid state, then the product is called direct reduced iron, or DRI. To produce DRI, the oxygen in the iron oxide is chemically removed by reacting with carbon monoxide (CO) and/or hydrogen (H2) at very high temperatures, about 900
The Midrex ® direct reduction process is the industry’s most productive technology for making high-quality direct reduced iron (DRI) products, accounting for approximately 60% of the world’s total annual production. DRI and its derivatives, including hot briquetted iron (HBI), are a virgin iron feedstock that is often used in steelmaking applications. Increased global demand for DRI