coal based sponge iron process

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    Sponge Iron Composition & Manufacturing Process - Lloyd's ...

    DRI is successfully manufactured through either gas or coal-based technology. Iron ore is reduced in solid state at 800-1050 c either by reducing gas (H2+CO) or coal. The direct reduction process uses palletized iron or natural 'lump' ore. Process. Sponge iron making is a process in which iron ore lumps (typically 5mm-18mm size) are tumbled ...

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    Coal based Direct Reduction Rotary Kiln Process ...

    The coal based direct reduction rotary kiln process was developed for converting iron ore directly into metallic iron without the melting of the materials. The process has the advantage of low capital expenditure and no requirement of coking coal.

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    ORISSA SPONGE IRON AND STEEL LTD.

    OSIL Process subsequently became popular and was widely accepted and recognized as one of the leading coal based sponge iron technology in the world.. OSIL set up its Project & Engineering Division at Bhubaneswar in 1992 to enable setting up of Sponge Iron plants in the country based on its patented process.

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    Study on Accretion Formation on DRI kiln during spong …

    Study on Accretion Formation on DRI kiln during spong iron production Chandrashekhar shrivas, Himanshu shrivas ... when the coal based DRI plant of Sponge Iron India Limited (SIIL) was commissioned at ... The oxidation reaction of carbon during process is given as .

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    AN INVESTIGATION FOR GENERATION OF ENERGY …

    The process flow diagram of conventional coal based sponge iron plant is shown in figure 1. The operating data, shown in figure 1, is taken from a typical Indian coal based sponge iron plant where iron ore, feed coal and dolomite

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    coal based sponge iron plants in us

    Recovery and utilization of waste heat in a coal based sponge iron process of coal of 264,535million tonnes the coal based sponge iron plants share the major amount of its production [2]. At present, there are 118 large and small sponge iron plants operating in India, among.

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    Sponge Iron – BFCL

    The product of such solid state processes are called direct reduced iron. The reducing gas is a mixture of gases, primarily hydrogen (H2) and carbon monoxide (CO). The process temperature is typically 800 to 1200 °C. Direct reduction processes can be divided roughly into two categories, gas-based, and coal-based.

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    Development of energy conservations scenarios for sponge ...

    The process flow diagram of conventional coal-based sponge iron plant is shown in Fig. 1.The operating data shown in Fig. 1 is taken from a typical Indian sponge iron plant. In the conventional process kiln feed, which consists of iron ore, feed coal, and dolomite, is fed to the rotary kiln.

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    sponge iron process

    Based on sized analysis, mean particle size can be calculated for every zone. 6. Performance evaluation of coal injection trials ... COAL INJECTION IN ROTARY KILN K.Ramu, C.Ramesh, A.Rajasekaran During the process of manufacture of sponge iron, coal injection plays a v... IRON ORE & MGM IRON …

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    Direct Reduced Iron (DRI) | International Iron Metallics ...

    Direct Reduced Iron (DRI) is the product of the direct reduction of iron ore in the solid state by carbon monoxide and hydrogen derived from natural gas or coal. ... In India there are many small rotary kiln furnaces producing DRI, known locally as sponge iron, using coal as energy and reductant source. ... Ore-based metallics - merchant pig ...

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    Recovery and utilization of waste heat in a coal based ...

    Recovery and utilization of waste heat in a coal based sponge iron process ... of coal of 264,535million tonnes the coal based sponge iron plants share the major amount of its production [2]. At present, there are 118 large and small sponge iron plants operating in India, among

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    2.5 MTPY DR PLANT (COG + Syngas) based Comparison …

    reduced Iron in Solid State reduction process produced from iron ore which is consequently Gas Based used as a feedstock in EAF and Induction Furnace for Steel Making. Hot Briquetted Iron (HBI) is a compacted form of DRI designed for ease of handling, storage & shipping. In India the coal based …

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    Sponge Iron

    Sponge Iron India is the world's largest producer of sponge iron, most of which is produced primarily through the coal based method of production. Growth in the sponge iron production can be attributed largely to the popularity of secondary steelmaking route, which has shown a phenomenal growth in India.

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    SL/RN Process | Industrial Efficiency Technology & Measures

    The so-called Stelco-Lurgi/Republic Steel-National Lead (SL/RN) process is a widely used coal-based DRI-making process which uses a rotary kiln. The process uses lump ore, pellets, beach sand or ilmenite ore and solid carbon to produce hot or cold DRI.

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    WELSPUN STEEL LIMITED

    Sponge iron is a metallic product produced through direct reduction of iron ore in the solid state. It is a substitute for scrap and is mainly used in making steel through the secondary route. The process of sponge iron making aims to remove the oxygen from iron ore.

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    What is sponge iron? - Quora

    India is the world's largest producer of sponge iron, most of which is produced primarily through the coal based method of production. Growth in the sponge iron production can be attributed largely to the popularity of secondary steelmaking route, which has shown a phenomenal growth in India.

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    Setting up of modalities for normative coal requirement in ...

    The contribution of coal based sponge iron to the total production in India has remained above 60 per cent since 2004-05. The contribution of coal based sponge iron has been on the rise.

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    Super Refractories - Sponge Iron Production

    For Sponge Iron production by Direct Reduction Process CUMI offers the following solutions. COAL BASED SPONGE IRON ROTARY KILN

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    Energy survey of the coal based sponge iron industry ...

    The actual process of the coal based sponge iron production is based on SL/RN process (jointly developed by the Steel Company of Canada, Lurgi Chemie, Republic Steel Company and National Lead Corporation in 1964), which works on direct reduction of ore.This process is adopted by worldwide conventional sponge iron industries.

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    Sponge Iron - HIRA - Godawari Power & Ispat Limited

    Sponge Iron is a substitute of scrap in steel melting. Although the reduction in the kiln is not direct, the CO gas reduces the impurities and oxides of hematite and the resultant DRI is in the solid form, this process is known as Direct Reduction Process. Coal based DRI process is mainly preferred on account of better non contaminated Iron (Fe ...

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    Coal Based Sponge Iron Industry - [DOC Document]

    In coal based sponge iron kilns, depending on the quality of reductant (coal) used, about 60% of the total heat input is utilized in the reduction process. About 40% of the heat input is discharged with the kiln waste gases and the kiln materials in the form of sensible or chemical heat.

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    OVERVIEW OF PROBLEMS IN SPONGE IRON INDUSTRY

    OVERVIEW OF PROBLEMS IN SPONGE IRON INDUSTRY Direct-reduced iron (DRI), also called sponge iron, is produced from direct reduction of ... The ore used in most of the coal based sponge iron plants hardly meet the above ... the use of pellets in rotary kiln sponge iron process will become techno-economically advantageous in spite of higher price of

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    Sponge Iron

    Sponge Iron India is the world's largest producer of sponge iron, most of which is produced primarily through the coal based method of production. Growth in the sponge iron production can be attributed largely to the popularity of secondary steelmaking route, which has shown a phenomenal growth in India.

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    Sponge Iron Industry - SlideShare

    Pollution in the Coal Based Sponge Iron Industry in India Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website.

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    SteelWorld.com - Monthly Journal

    In coal based sponge iron kilns, depending on the quality of reductant (coal) used, about 60% of the total heat input is utilised in the reduction process. About 40% of the heat input is discharged with the kiln waste gases and the kiln materials in the form of sensible or chemical heat.

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    SPONGE IRON INDUSTRY

    producer of Coal based sponge iron in the world since 2001. There are two types of technologies available for producing sponge iron: Coal based and gas based. In the former case, coal is the reductant while for the later natural gas is used to reduce the iron ore. For coal based rotary Kiln

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    India - production volume of coal based sponge iron 2017 ...

    This statistic gives the production volume of coal based sponge iron in India from the fiscal year of 2012 to fiscal year of 2017. The coal based sponge iron production amounted to just under 20 ...

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    STEEL MAKING: DRI ROUTE - VIABLE OPTION

    Gas Based Vs Coal Based Production of DRI in India India, the world's largest producer of sponge iron 23 MMT, expected to maintain its lead in the near future. Sponge iron production grew at a CAGR of 11 per cent to reach a level of 21.09 million tonne in 2008-09 compared to 12.54 million tonne in 2004-05.

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    SPONGE IRON PRODUCTION FROM ORE -COAL …

    SPONGE IRON PRODUCTION FROM ORE -COAL COMPOSITE PELLETS IN TUNNEL KILN . S.C.Khattoi. ... Indian Institute of Technology, Kharagpur – 721302, India. Abstract: Today India stands as the largest producer of coal based sponge iron through rotary kiln process using calibrated ore and non coking coal. ... Since it is gas based process, it also ...

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    Coal Gas for DRI plant

    Coal Gasification Plant and use of by-products, Angul. Direct-reduced iron (DRI), also called sponge iron is produced from direct reduction of iron (in the form of lump, pellets or fines) by a reducing gases produced from natural gas or coal.