The CO reduces the iron ore to molten iron becoming CO 2 in the process. 3 CO + Fe2O3→ 2Fe + 3CO 2 called direct reduced iron (DRI) or SPONGE IRON. Direct reduced iron (DRI) or sponge iron is a good substitute of scrap for and vigorously in the country instead of natural gas based shaft furnace or retort process.
WhatsAppThe metallic iron in this process is produced by the reduction of iron oxide below the fusion temperature of iron ore (1535 deg C) by utilizing carbonaceous material present in the noncoking coal. 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).
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WhatsAppWhere complex retort systems are used for charcoal making the simplest approach is undoubtedly to use the whole of the offgases as a source of heat for carbonisation and if there is an excess to burn the gases for power or process heat generation. Some of the retort systems described earlier in this chapter recover the heat in the offgases
WhatsAppProcess description. Where hydrogen was commonly produced with the single retort like the Messerschmitt and the Bamag type, Lane introduced the multiple retort type. In the Lane generator water gas was used to heat the retorts up to 600800 °C after which water gasair was used in the retorts. In the steamiron process the iron oxidizes and has to be replaced with fresh metal, in the Lane
WhatsAppJames G. Speight,, in Natural Gas (Second Edition), 2019. Iron sponge process. An example of a hydrogen sulfide scavenger process is the iron sponge process (also called the dry box process), which is the oldest and still the most widely used batch process for sweetening of natural gas and natural gas liquids (Anerousis and Whitman, 1984).
WhatsAppDirect reduction processes are of significance and can form an alternative to a conventional Blast furnace. Solid sponge iron ( direct reduced iron or DRI) is produced by removing oxygen from the ore .The technique of Direct reduction varies according to the type of reducing agents employed and the metallurgical vessel in which they are reduced.
WhatsAppA carbothermic process of reduction in an externally heated vertical shaft furnace of iron ore to PM grade sponge iron using coke and lime stone as reductant mixture wherein the ore and the reductant mixture are charged from t~e top of the furnace through a coaxial double hopper arrangement having flexibility of changing cross section with
WhatsAppThis 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
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WhatsAppBrief process of coal based sponge iron rotary kiln brief process of coal based sponge iron rotary kiln. we are the manufacturer of coal mining machine,roadheader,coal loader,tunnel mucking loader,backfilling machine,concerte pumping machine and so on. brief process of coal based sponge iron rotary kiln manufacturer, supplier. get price
WhatsAppIn this process, heat was supplied through the direct electricalresistance heating of the coke in the charge. The most serious disadvantage of the improved retort processes was that they were restricted to ore concentrates with a low iron content, because high iron content in the feed caused plates of iron to form in the retorts.
WhatsAppDec 30, 1980· Sponge iron and excess coal are withdrawn from a cooling zone of the retort after it has been cooled below the air oxidation temperature of the sponge iron, the withdrawal rate being controlled in order that the momentary speed of descent of the mixture within the retort is constant at every point in any one single horizontal section of the retort.
WhatsAppJan 01, 2020· The sponge in contact with retort wall and the push plates have a high likelihood of contamination with iron and nickel since these metals are soluble in titanium. The top of the mass may also have some contamination of iron and nickel from reaction with the radiation shield and substoichiometeric chlorides.
WhatsAppRetort Process Of Sponge Iron. Rotary kiln process of making sponge iron c rotary kiln process of making sponge iron 13 that the entire production by number 2 3 and 4 countries is through gas. Used Used Rotary Kilns For Sale Equipment More.
WhatsAppWe have rotary kiln process of making sponge iron,DRI, also known as sponge iron, is the product of reducing iron oxide in the form of iron ore and steel plant wastes into metallic iron, below the melting point of iron and typically in the range of 800–1200 °C. Iron oxide is charged intoshaft furnace, rotary kiln, or fluidized beds
WhatsAppThe sponge iron process. the longest established of these processes is the sponge iron process, the leading example of a family of processes involving solid state reduction of an oxide. in the process, selected magnetite fe3o4 ore is mixed with coke and lime and placed in a silicon carbide retort.
WhatsAppSPONGE IRON PRODUCTION FROM ORE COAL COMPOSITE PELLETS IN TUNNEL KILN. SPONGE IRON PRODUCTION FROM ORE COAL COMPOSITE PELLETS IN TUNNEL KILN 1*, G. G. Roy2 1 Project Engineering Consultancy, Keonjhar, Odisha, India 2 Indian Institute of Technology, Kharagpur – 721302, India Abstract: Today India stands as the largest producer of coal based sponge iron
WhatsAppprocess making sponge iron rotary kiln. Rotary Kilns Used For Sponge Iron Plant . Rotary Kilns Used For Sponge Iron Plant, Find Complete Details about Rotary Kilns Used For Iron Rotary Kiln,Rotary Kiln Incinerator from Cement Making Machinery Supplier or Delivery Time 6090 work day CITICIC is a global supplier of technology and services to customers in the process industries,including.
WhatsAppretort process of sponge iron . A vertical retort is used for the reduction of iron ore as against a rotary kiln in coal based sponge iron process. Chat Online. sponge iron by tunnel process in south africa. sponge iron by tunnel process in 2013 tunnel kiln process sponge iron in south africa. sponge iron Technology China
WhatsAppA vertical retort is used for the reduction of iron ore as against a rotary kiln in coal based sponge iron process. When the gases are travelling upwards the charge moves downward by gravity. Gasbased sponge iron is not subjected for magnetic separation, as no contamination with nonmagnetic is possible either it can be cooled indirectly or
WhatsAppThis process utilizes natural gas the reducing agent. Natural gas is reformed to enrich with 112 and Co mixture and this enriched and reformed gas mixture is preheated in gasbased process. A vertical retort is used for the reduction of iron ore as against a rotary kiln in coal based sponge iron process.
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