Direct reduced iron uses. Apr 29, 2024 · What is Direct R...
Direct reduced iron uses. Apr 29, 2024 · What is Direct Reduced Iron (DRI)? Direct Reduced Iron is formed after the direct reduction of iron ore. Many ores are suitable for direct reduction By using direct reduced iron, steel makers can dilute lower grade ores and lower cost ferrous scrap to attain acceptable levels of contamination in the mix. Iron oxide feedstock exits in same form as entered (pellets in, pellets out; lumps in, lumps out) It is the non-coke ironmaking process in which a gaseous, liquid, or solid reductant is used to reduce the iron ore into metallic iron in a temperature less than the ore softening temperature. Fluidized bed DRI due to direct utilization of fine ore eliminates the firing/induration and cooling steps in the pelletization process used in shaft furnace DRI and blast furnace and thus has the potential to become It is the non-coke ironmaking process in which a gaseous, liquid, or solid reductant is used to reduce the iron ore into metallic iron in a temperature less than the ore softening temperature. DRI is produced by direct reduction of iron ore using carbon monoxide and hydrogen. without melting, as in the blast furnace. Coal-based direct reduced iron (DRI) reduces CO2 emissions by 38 % compared with traditional blast furnace–basic oxygen furnace (BF-BOF) ironmaking. In a direct reduction process, varieties of reductants, namely lower grade coals, natural gas and charcoal, are used. This solid-state method keeps the iron in a spongy form. Consequently, there is a great increase in the demand for direct reduced iron in electric arc steel making. AI generated definition based on: Treatise on Process Metallurgy (Second Edition), 2024 Direct Reduced Iron (DRI) technology uses natural gas to reduce iron ore directly. Two-part article designed to alleviate some of the confusion on Direct Reduced Iron for the novice, and even reframe the understanding for the seasoned vet. Direct Reduced Iron The Versatile Metallic The need for a dependable and clean source of iron will continue to increase as steelmaking grows and expands globally. Abstract Iron Types: Pig Iron, Direct Reduced Iron (DRI), Hot Briquetted Iron (HBI), Cold Briquetted Iron (CBI) and Cold Briquetted Iron and Carbon (CBIC) Specifications. Direct reduced iron (DRI), also known as sponge iron is a product that is produced from iron ore. The DRI process involves a reduction chemical reaction that involves the removal of oxygen. Also called sponge iron, is produced from the 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 agents used in this process are hydrogen and carbon monoxide. The processes used to manufacture the DRI are known as the direct reduction processes. The Direct Reduced Iron (DRI) process is an alternative ironmaking method that reduces iron ore to metallic iron without melting. DRI is produced by the use of a reducing gas (mostly a mixture of hydrogen and carbon monoxide). This process is Carbon combines with the oxygen in the iron ore, producing metallic iron and a carbon-rich process gas, according to the following simplified chemical reaction: 2Fe2O + 3C -> 4Fe + 3CO The global needing for greenhouse emissions and energy consumption reduction led, in the recent past, to the increased scientific and industrial interest in the development of technologies allowing to produce direct reduced iron. The reducing agents are carbon monoxide and hydrogen, coming from reformed natural gas, syngas or coal. The evaluation encompassed a meticulous review of journal articles, industrial reports, and conference papers published between 2002 and 2025, ultimately identifying 65 pertinent studies. 4. Explore Direct Reduction: the essential, low-emission process reshaping steel production by replacing traditional methods and using advanced chemistry. A qualitative thematic analysis of the optimisation Basics Often abbreviated as DRI Direct-reduced iron is a metallic material formed by the reduction (removal of oxygen) of iron oxide (iron ore) at temperatures below the melting point of iron. Introduction Direct Reduced Iron (DRI) is the second most viable source of virgin iron used in steelmaking after pig iron or hot metal produced in blast furnaces. HBI use in the Blast Furnace (BF) Due to its physical properties, HBI is the preferred form of DRI for blast furnace use. The technology has a broad range of benefits that includes the following: The process allows producers to use various hydrocarbon sources and off-gases making it an ideal technology to support the staged transition to hydrogen Using the Product for Optimum Steelmaking INTRODUCTION The use of direct reduced iron (DRI) and DRI products is constantly on the rise and will be for the foreseeable future. Direct reduction of iron is the chemical removal (reduction) of oxygen from iron ore in its solid form. Oct 6, 2025 · Learn how direct reduced iron is made without melting ore, providing a high-purity material that helps lower the carbon emissions of modern steel production. Chapters in this revised book on direct reduced iron (DRI) covers direct reduction's place in the world steel industry, history of direct reduction, thermodynamics, kinetics and mechanisms in direct reduced iron, iron-bearing raw materials for direct reduction, fuels and reductants, direct reduction processes, handling and shipping of DRI/HBI . Direct Reduction is used more than blast furnaces. 2 Direct Reduction of Iron Production Using Coal Gasification 4. This means that when you consume foods that contain reduced iron, your body can more effectively utilize the iron to support various functions, such as oxygen transport, energy production, and immune system function. The study also discusses the environmental sustainability of such processes. India is the second-largest producer of steel on a global scale and DRI sector contributes significantly to the overall production of steel in India. Direct reduction processes are of significance and can form an alternative to a conventional Blast furnace. If direct reduced iron pellets are substituted for pelletized ores in blast furnaces, the amount of coke per ton of pig iron would be cut. Direct reduced iron is also called sponge iron. This presentation reviews the different DR processes used to produce Direct Reduced Iron (DRI), providing an analysis on th e qual ity requiremen ts of The Direct-Reduced Iron (DRI) and Hot-Briquetted Iron (HBI) Market is expected to witness robust growth from USD 30 billion in 2024 to by 2033, with a CAGR of 5. Direct reduced iron (DRI) like pig iron and hot metal is one of the alternative iron charge material which has been used in varying percentage in the EAF steelmaking process. Solid sponge iron ( direct reduced iron or DRI) is produced by removing oxygen from the ore . The global annual production of steel is approximately 2 billion tons, accounting for 8 % of the world's energy demand and 7 % of carbon dioxide (CO2) emissions in the energy sector. 4 Hydrogen Use in Indian Iron and Steel Sector 5. fossil resources – natural gas or coal. Hot-briquetted iron Direct reduced iron (DRI), also called sponge iron, [1] is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) into iron by a reducing gas which contains elemental carbon (produced from natural gas or coal) or hydrogen. DRI is produced through the removal Direct-reduced iron (DRI) plays a crucial role in various end-use applications of steel. It reviews the present status of the direct reduction (hereinafter referred to as "DR") technology at Kobe Steel and examines the role played by DRI in achieving a paradigm shift in the iron and steel industry. In the automotive industry, the use of advanced high-strength steel (AHSS) made possible by DRI enables auto manufacturers to reduce vehicle weight while maintaining safety standards. 2 days ago · Direct Reduced Iron (DRI) is high in iron content and low in copper and other undesirable metals – tramp elements – and nitrogen content. Among hydrogen metallurgical approaches, the hydrogen-based direct reduction iron (H-DRI) process stands out for its substantial Synopsis Direct reduced iron (DRI), produced by the reaction between iron ore and reducing gasses, is used as a source of low-residual iron, in addition to ferrous scrap and pig iron, in the production of steel mainly through the electric arc furnace (EAF) route of steelmaking. Top uses of DRI for efficient steelmaking. Arijco – your trusted DRI supplier for high-quality direct reduced iron. 5 million tons in 2003. 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. Iron ore is often found in the form of granules or lumps and undergoes a reduction process that is created through the use of a reducing gas emitting coal or natural gas source. This process makes sponge iron, which is an important material for making steel with a high internal surface area. Direct Reduced Iron or sponge iron is considered useful in the steel industry because of the compact benefits that it brings with it like: DRI offers the steel industry an alternative source of iron, reducing dependence on traditional iron ore. Its physical and chemical characteristics make it desirable for use in the electric arc furnace (EAF), blast furnace (BF), and basic oxygen furnace (BOF). We will also discuss the quality of iron ore and how it affects the direct reduction process. 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 is a steelmaking process that converts iron ore into sponge iron without melting, playing a vital role in efficient, low-emission steel production. In addition, direct reduced iron has a well-defined chemical composition when compared with steel scrap and has efficient melting properties in the electric arc furnace. Direct Reduced Iron and its Production Processes 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. Hydrogen metallurgy presents the opportunity to mitigate carbon emissions in ISI from the origin. Direct reduction is removing the oxygen from the ore. The temperatures for this process are significantly lower than those in a blast furnace, and capital Exploring how solutions such as direct reduced iron (DRI) are helping the steelmaking industry to confront environmental challenges head-on. This systematic review examines optimisation strategies and technological advancements to foster sustainable direct reduction iron (DRI) production. DRI production is expected to continue this rapid increase for years to come. Published in Mineral Processing and Extractive Metallurgy, 2018 Deepak Dwivedi Direct reduced iron provides scraps for steel industries. The product is direct reduction iron which is an ideal raw material for producing high-quality steel and clean steel. When hydrogen is used as the reducing gas, no carbon dioxide is produced. The direct reduction process is defined as a method for producing solid iron from iron ores using a reducing agent, such as natural gas, resulting in direct reduced iron (DRI), which is primarily used as feedstock in electric arc furnace steelmaking. Sponge iron, or direct reduced iron (DRI), is made when oxygen is removed from iron ore without melting it. Direct reduction is defined as the process of producing solid iron from iron ores using a reducing agent, such as natural gas, resulting in direct reduced iron (DRI), which is primarily used as feedstock in electric arc furnace steelmaking. Reduced iron is a form of iron that has been chemically altered to make it easier for the body to absorb. This presentation reviews the different DR processes used to produce Direct Reduced Iron (DRI), providing an analysis on the quality requirements of iron-bearing ores for use in these processes. To focus on the emerging market and technological trends for the production, handling, and use of direct reduced iron (DRI) and hot briquetted iron (HBI) products as well as present and future alternative iron production technology. DRI production in 2013 hit 75. Using a combination gas of methane (CH 4) and hydrogen (H 2 The conventional iron and steel industry (ISI), driven by coal utilization as its predominant feedstock, constitutes a substantial source of greenhouse gas emissions. Ironmaking through direct reduction of iron ore (DRI) using CO and/or H2 significantly reduces CO2 emissions in comparison to the traditional blast furnace route which uses coke. Typical gas-based direct reduction processes are Midrex and HYL processes, both of which are shaft furnace processes that use natural gas (CH 4) or coal gas as DRI is produced through a process that uses natural gas or coal to reduce iron ore to its metallic form. Use of Direct Reduced Iron (DRI) in the Electric Arc Furnace (EAF) for Steelmaking Steel production in the EAF continues to grow both in North America and worldwide. The resulting product is pre-reduced iron ore. The direct reduction process results This paper focuses on steelmaking processes that utilize direct reduced iron (hereinafter referred to as "DRI"), taking up the aspects of environmental protection and resource depletion. It is used to make a broad range of steel products. AI generated definition based on: Treatise on Process Metallurgy (Second Edition), 2024 The direct reduced iron process (DRI) is becoming more and more important in the climate change debate about producing steel with as little CO2 as possible. The past 5 years have seen increases in the supply and use of Pig Iron, Direct Reduced Iron (DRI), and Hot Briquetted Iron (HBI) in the EAF. 0 Conclusion The production process begins with direct reduced iron feedstock in the form of grain-sized iron ore fines called ‘pellet feed’, which are agglomerated and processed into DR-grade pellets for DRI production. e. 65 million tons twenty years prior in 1993 and only 49. Direct reduced iron (DRI), also called sponge iron, [1] is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) into iron by a reducing gas which contains elemental carbon (produced from natural gas or coal) or hydrogen. The reducing agents used normally are : Gas DRI production Direct Reduced Iron (DRI) is the product of the direct reduction of iron – the removal of oxygen from iron ore or other iron bearing materials in the solid state, i. USES OF DRI : Sponge iron is not useful by itself, but can be processed to create wrought iron or steel. Direct Reduced Iron (DRI) is created by reducing iron ore using a reducing gas, producing a porous, high-purity iron suitable for steel making. In this blog post, we will provide you with an overview of the direct reduction process and its significance in iron production. It can increase hot metal production and lower coke consumption and can be used as up to 30 percent of the BF charge with no significant equipment or process changes. 22 million tons compared to only 23. Gas and Coal are both used to burn iron. 5%. Regardless of the steelmaking route, there is a form of direct reduced iron (DRI) for every application. Consequently, direct reduced iron has gained attractiveness for steel production in electric arc furnaces, utilizing hydrogen obtained from electrolyzed water instead of coke, which is used as a Direct Reduced Iron (DRI) | ALTech Group. Quick Primer Hydrogen-based Direct Reduced Iron (H2-DRI) is a process that uses hydrogen gas to convert iron ore into sponge iron, bypassing traditional carbon-intensive methods. Worldwide production of Direct Reduced Iron has increased from less than one million tonnes per year in 1971 to over 70 million tonnes forty years later. The reducing gas is a mixture majority of Hydrogen (H 2) and Carbon Monoxide (CO) which acts as reducing agent. 1 Direct Reduction of Iron Production Using Solid Coal 4. Direct Reduced Iron (DRI) is a vital intermediate in steelmaking, produced by reducing iron ore and serving as a primary feedstock for electric arc furnaces. This is achieved by exposing iron ore pellets or lumps to a reducing gas—typically composed of hydrogen (H₂) and carbon monoxide (CO)—at temperatures between 800°C and 1,050°C. Unreduced ore compounds remain as undesirable oxides DRI: Direct Reduced Iron. This study reviews the different DR processes used to produce Direct Reduced Iron, providing an analysis on the quality requirements of iron-bearing ores for use in these processes. Using Direct Reduction to costs less than using blast furnaces. This type of iron can be produced in several different types of furnaces, including bloomery furnaces coke or coal-fired Direct reduced iron Direct reduced iron is created when iron ore is burned in a bloomery. The fast depletion of high-grade coking coal reserves restricts the use of coal in a A Direct Reduced Iron (DRI) plant The DRI process is both effective and flexible. Discover its benefits and industrial importance. The result is a clean and reliable input for steelmaking. In the iron and steel industry, direct reduction is a set of processes for obtaining iron from iron ore, by reducing iron oxides without melting the metal. Optimize your production. This process allows for the use of lower-grade iron ore and natural gas, leading to cost savings and lower emissions compared to traditional blast furnace methods. The technique of Direct reduction varies according to the type of reducing agents employed and the metallurgical vessel in which they are reduced. Production Process Direct reduction iron production processes are gas-based direct reduction and coal-based direct reduction, but gas-based direct reduction is the dominant process. 3 Direct Reduction of Iron Production Using Gas Route 4. DRI is produced in the form of lumps or pellets. 0 Potential Low-carbon Technology Options for Indian Direct Reduction of Iron Sector 4. Learn about the process and applications of direct reduced iron in steel manufacturing. DRI usage can have distinct effects on the melting process. Direct reduced iron Direct reduced iron (DRI) is produced from direct reduction of iron ore (in form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. Its unique texture improves melting and mixing during steel production. ojpi, zlfu, 3bob, psrv, oy8m, lzvq, 9zxeq, oecje, wsnrw, kqdpp,