OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION IN A ROTARY KILN B. L. SENGUPTA A. B. CHATTERJEA, G. P. MATHUR V. A. ALTEKAR* ABSTRACT ON the background of the imbalance in the occurrences of vast deposits of high grade iron
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. While the produced DRI is mainly used as the raw material of electric steelmaking, it is also used as
The sponge iron reaction (SIR) is a chemical process based on redox cycling of an iron-based contact mass, the first cycle is a conversion step between iron metal (Fe) and wuestite (FeO), the second cycle is a conversion step between wuestite (FeO) and magnetite (Fe 3 O 4).
innovative process combining a sponge iron reactor with a hydrocarbon reformer and a partial off-gas feedback loop, was investigated as means of providing an on-site hydrogen production capacity from a feedstock of hydrocarbons produced with ISRU technology
Sponge Iron SIPL is operating 4 x 100 TPD Direct Reduced Iron Rotary Kilns for production of 2000 TPA Sponge Iron at Purulia, using the proven German SL/RN technology. Sponge iron is rich in Metallic Iron (Pure Iron) with consistent chemical & physical characteristics.
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.
iron process sponge iron producing sponge furnace Prior art date 1920-01-08 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US350171A Inventor Edwin B Thornhill Original Assignee Edwin B Thornhill Priority date (The ...
Sponge iron powder . The Höganäs process is a direct reduction method for production of sponge iron powder using magnetite ore (Fe3O4) and carbon as raw materials.
N. Selvakumar, in Reference Module in Materials Science and Materials Engineering, 2017. Commercial sponge iron powder production dates back to 1903 with the invention of the Sieurin process …
The 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.
2. production of iron and steel powders table of contents 2.1 introduction 2.2 short history of iron powder 2.3 the hÖganÄs sponge iron process
2014-07-29· RSNZ 'Big Science' Documentary Making Competition 2006, entry by Pukekohe High School students Tim, Alec & Allen.
The iron sponge process uses the chemical reaction of ferric oxide with H2S to sweeten gas streams. This process is applied to gases with low H2S concentrations (300 ppm) operating at low to moderate pressures (50-500 psig).
Designing Iron Sponge Process For H2S Removal - posted in Student: Hi all, I am a final year student in australia and am trying to complete my design project. I am tasked with designing the equipment for the Iron Sponge (oxide) process for the removal of hydrogen sulphide from natural gas. I have come to understand that this is a fixed bed ...
Sponge Iron is the iron ore reduced in solid state by a direct reduction process using natural gas or non-cooking coal as reductant. The sponge iron is also known as Direct Reduced Iron (DRI), Hot briquetted Iron (HBI) or Metalized Iron. The term Hot Briquetted Iron (HBI) is generally used for gas based direct reduced iron made in briquette shape in hot condition just after it has been ...
1 RAW MATERIAL General The major Raw Materials required for production of Sponge Iron by the rotary kiln process are: sized graded Iron Ore and Non-
2013-03-16· A DRI production process is one in which the solid metallic iron is obtained directly from solid iron ore without subjecting the ore or the metal to fusion. The process principle is shown in Fig. 1. The process principle is shown in Fig. 1.
Direct Reduced Iron (DRI), also known as Sponge Iron, offers an alternative steel production route to BF-BOF and Scrap-EAF routes. In DRI, iron ore is reduced in its solid state – unlike BF process where a liquid metal is formed during reduction.
Prior art keywords production process sponge iron iron pellets pellets Prior art date 1968-04-17 Legal status (The legal status is an assumption and is not a legal conclusion.
Use of a new material as a replacement product for iron sponge (wood chips) for H2S removal has been introduced at two Shell Western E&P central production facilities in Michigan.
The direct production of steel from iron ore in the electric furnace has never passed beyond the laboratory stage. Just as pig iron can be produced from iron ore in the electric furnace, so can pig steel be produced by a close regulation of the carbon content of the charge.
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.
Direct reduced iron (DRI), also called sponge iron, is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) to iron by a reducing gas …
THE KRUPP SPONGE IRON PROCESS PRODUCTION AND UTILISATION OF METALLIZED MATERIALS DR. ING. GUNTHER MEYER Krupp Industrie—und Stahlbau, Essen DR. ING. UWE BONGERS Krupp Industrie—und Stahlbau, Essen Introduction a MEXT to ore, fuel is the most important factor governing the cost of producing primary iron. In the blast furnace process, coke with special …
Sponge Iron. We are the leading manufacturer of Direct-reduced iron (DRI), also called sponge iron, which 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.
2019-02-15· Sometimes known as direct-reduced iron, sponge iron is a product that is produced using iron ore. The iron ore is often in the form of pellets or lumps, and is subjected to a reduction process that is created by the use of a reducing gas that emits from coal or a natural gas source.
2010-07-29· TECHNICAL ASPECTS OF MANUFACTURE OF SPONGE IRON We have produced 55 million tons plus of steel in our country in the year 2008.This production of steel has come thro both conventional blast furnace route, electric arc/induction furnace route and thro new iron making technology COREX.
Midrex is direct reduction process using a shaft-reactor and is developed by Midrex/Kobe Steel. Iron ore pellets, lump iron ore or a combination of pellets and ore are reduced in a vertical shaft or reduction furnace to metallic iron by means of a reduction gas.