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  • HYL Process for Direct Reduction of Iron Ore – IspatGuru

    Apr 22, 2017  In 1988 the total natural gas feed and O2 injection to the shaft furnace (reduction reactor) led to the ‘HYL self-reforming scheme’, where the reformed gas make-up was reduced to zero. This reformer less scheme was named as HYL ZR process and was applied successfully in the Hylsa 4M plant in April, 1998, and in the Hylsa 3M5 plant in July ...

  • XXX HYL NEWS - TENOVA

    XXX HYL NEWS HYL NEWS In this issue § Improving Performance and Decreasing CO ... oxygen at the inlet of the reactor. Prevailing operating conditions of the ENERGIRON ZR process, characterized by high temperature ... employs a continuous shaft furnace-based process, with

  • HYL III Process Industrial Efficiency Technology Measures

    HYL III is another gas based DRI process. The process uses reducing gases within a moving bed shaft furnace reactor to remove the oxygen from iron ore pellets and lump ore. In comparison to other similar technologies, it operates a slightly higher reduction temperatures (~ 930 ºC) and intermediate reduction pressures (up to 6 bars). The process can produce cold and hot DRI as well as Hot ...

  • Direct Reduction Process - an overview ScienceDirect Topics

    Previously developed processes for the gaseous reduction of iron oxide can be grouped into two broad types: shaft furnaces (Midrex and HYL [56]) and fluidized-bed reactors (FINMET and the earlier FIOR [57], CIRCORED Process [58], and SPIREX [59]). Most of these processes, however, are not sufficiently intensive to replace the BF because they ...

  • Midrex Process for Direct Reduction of Iron Ore – IspatGuru

    Apr 09, 2017  Midrex Process for Direct Reduction of Iron Ore. Midrex is an ironmaking process, developed for the production of direct reduced iron (DRI). It is a gas-based shaft furnace process is a solid state reduction process which reduces iron ore pellets or lump ore into DRI without their melting using reducing gas generally formed from natural gas.

  • Detailed Modeling of the Direct Reduction of Iron Ore in a ...

    Among the DR processes, the shaft 34 furnaces represent over 82% of the world DR iron production, with the two main processes being 35 MIDREX (see Fig. 1) (65%) and HYL-ENERGIRON (17%) [3]. 36 In a DR shaft furnace, a charge of pelletized or lu mp iron ore is loaded into the top of the furnace

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  • Online Modelling of ENERGIRON Direct Reduction Shaft Furnaces

    A mathematical model for the simulation of ENERGIRON direct reduction furnaces has been developed. To simulate the reduction steps an un-reacted shrinking core model has been used. A 1D version of the model has been implemented in a software currently working on an industrial plant, that solves in real time a system of partial differential ...

  • Cited by: 1
  • THE SMART CHOICE - TENOVA

    HYL plant, India. 2006 marked the establishment of the Energiron alliance: Tenova HYL and Danieli team up to promote and develop the new Energiron technology for direct reduction plants. HYL experience in DR technology dates back to the fifties and since then original continuous shaft reactor and zero reformer processes and the HYL HYTEMP ...

  • Cost Effectiveness Analysis of HYL and Midrex DRI ...

    HYL, also known as Energiron, technology efficiently reduces iron ore pellets into highly metallized hot or cold iron. Utilizing high operating pressure, the process uses reducing gases within a moving bed shaft furnace reactor to remove oxygen from iron ore pellets and lump ore. The process is independent of any

  • ENERGIRON Direct Reduction Technology - Economical ...

    inlet of the shaft furnace, through some oxygen injection at the inlet of the reactor, if necessary. Figure 1. ENERGIRON Process Diagram When using natural gas, all reducing gases (H 2 and CO) are generated in the reduction section of the shaft furnace, taking advantage of the catalytic effect of the metallic iron inside the furnace, optimum

  • STATE OF THE DIRECT REDUCTION AND REDUCTION

    HYL III, based on HYL I , uses a single shaft furnace with a moving bed instead of HYL I’s four fixed-bed reactors. HYL II was developed but never commercialized. The HYL process is based on reducing gases, generally consisting of reformed

  • Shaft Furnace Direct Reduction Technology - Midrex and ...

    Coke constitutes the major portion of ironmaking cost and its production causes the severe environmental concerns. So lower energy consumption, lower CO2 emission and waste recycling are driving the iron and steel industry to develop alternative, or coke-free, ironmaking process. Midrex and HYL Energiron are the leading technologies in shaft furnace direct reduction, and they account for about ...

  • HyL III Downstream Consulting Pty Ltd

    Solids. Iron ore is processed in the HyL III reactor in the form of pellets, lump or a mixture of both. The solids are fed into the shaft furnace through an automated system of valves which allows the pressurization and depressurization of inlet hoppers (lock hopper system) This is required due to the relatively high operating pressure of the shaft furnace.

  • Seminar on HYL Process - LinkedIn SlideShare

    Dec 23, 2013  HYL III process, a single shaft furnace with a moving bed is used in place of the four original fixed bed reactors. The main equipment of HYL-III comprises a DR shaft furnace, a gas reformer, and a gas reheated. The principles of operation of the furnace are similar to the midrex shaft furnace. 16. Typically HYL offers the following module ...

  • Patents Assigned to HYL Technologies S.A. de C.V. - Justia ...

    Dec 21, 2016  Abstract: A blast furnace system is used wherein the coke rate is decreased by recycling upgraded top gas from the furnace back into its shaft section (which upgraded top gas is heated in a tubular heater prior to being recycled). The top gas, comprising CO, CO2 and H2, is withdrawn from the upper part of the blast furnace; cooled and cleaned of dust, water, and CO2 for increasing its ...

  • 1 SELECTION AND IMPLEMENTATION OF NEW IRONMAKING ...

    – 5-8 times increase in the furnace diameter for Midrex and HYL direct reduction shaft furnaces with further diameter increase in the following stages – ~ 5 times increase in the hearth width for RHF processes – 2.2 times increase in SL/RN rotary kiln diameter and 5 times increase in a furnace

  • Energiron direct reduction ironmaking - Economical ...

    Most of the DRI plants use shaft furnace reactors developed by MIDREX [43] and HYL-Energiron [45] technologies. Shaft furnaces are moving bed counter-current reactors. ... Shaft furnaces are ...

  • Process through Multiscale Process Modeling

    3. Shaft Furnace Model 3.1. Previous Works The shaft furnace (Figure 2) is the core of the DR process. Iron ore pellets are charged at the top, descend due to gravity, and encounter an upward counter-flow of gas. The reducing gas (CO and H 2, plus CH 4, CO 2, and H 2O, at about 950 °C) is injected peripherally at mid-height and exits at the top.

  • State of the direct reduction and reduction smelting processes

    State of direct reduction and reduction smelting processes J. Min. Met. 38 (3 ‡ 4) B (2002) 125 T able 1: T otal world’ s DRI output in 1998, 1999, 2000 and 2001 (in %) [2]

  • Detailed Modeling of the Direct Reduction of Iron Ore in a ...

    The geometry in the reduction and transition sections is cylindrical, while conical in the cooling section. This corresponds to the geometry of the shaft furnaces and is necessary to describe correctly the lateral gas feed and outlet cooling gas, as shown in Figure 2. The reactor modeled is a shaft furnace

  • Direct Reduction of Iron: A Review on Midrex and Hyl Patents

    Ironmaking is the major energy consuming and CO2-emmiting step in steel production. Direct reduction processes are an alternative to the traditional blast furnace because of the use of H2 in the reducing gases which generate less CO2. There are two main technologies for direct reduction of iron, Midrex and Energiron (or Hyl) which together are responsible for 80% of the production of direct ...

  • HYL III and SL/RN - The two widely accepted gas based DR ...

    Sep 21, 2019  SL/RN and HYL are two such gas based direct reduction technologies (DR) or iron making processes. While HYL is a batch-type gas based process and uses a countercurrent shaft-furnace, the SL/RN process (Stelco–Lurgi/Republic Steel–National Lead) utilizes rotary kiln to reduce lump ore, pellets and sand iron with coal.

  • State of the direct reduction and reduction smelting processes

    State of direct reduction and reduction smelting processes J. Min. Met. 38 (3 ‡ 4) B (2002) 125 T able 1: T otal world’ s DRI output in 1998, 1999, 2000 and 2001 (in %) [2]

  • Detailed Modeling of the Direct Reduction of Iron Ore in a ...

    The geometry in the reduction and transition sections is cylindrical, while conical in the cooling section. This corresponds to the geometry of the shaft furnaces and is necessary to describe correctly the lateral gas feed and outlet cooling gas, as shown in Figure 2. The reactor modeled is a shaft furnace

  • Direct Reduction of Iron: A Review on Midrex and Hyl Patents

    Ironmaking is the major energy consuming and CO2-emmiting step in steel production. Direct reduction processes are an alternative to the traditional blast furnace because of the use of H2 in the reducing gases which generate less CO2. There are two main technologies for direct reduction of iron, Midrex and Energiron (or Hyl) which together are responsible for 80% of the production of direct ...

  • HYL III and SL/RN - The two widely accepted gas based DR ...

    Sep 21, 2019  SL/RN and HYL are two such gas based direct reduction technologies (DR) or iron making processes. While HYL is a batch-type gas based process and uses a countercurrent shaft-furnace, the SL/RN process (Stelco–Lurgi/Republic Steel–National Lead) utilizes rotary kiln to reduce lump ore, pellets and sand iron with coal.

  • Detailed Modeling of the Direct Reduction of Iron Ore in a ...

    furnace, basic oxygen route [2]. Among DR processes, shaft furnaces represent over 82% of the world’s DR iron production, with the two main processes being MIDREX (65%), as shown in Figure1, and HYL-ENERGIRON (17%) [3]. In a DR shaft furnace, a charge of pelletized or lump iron ore is loaded into the top of the furnace

  • GASIFICATION AND THE MIDREX? DIRECT REDUCTION

    vertical reactor called the MIDREX Shaft Furnace. This is accomplished as the continuously fed iron oxide, which is similar in size and shape to marbles, flows downward through the Shaft Furnace by gravity, countercurrent to the hot reducing gases which are rising up through the Shaft Furnace

  • What We Do - Nippon Steel

    NIPPON STEEL ENGINEERING CO., LTD. provides new iron source technology that enables the achievement of productivity improvements, operational cost reductions, CO 2 emissions reductions, and capital investment reductions through the optimal combination of Tenova HYL and Danieli's natural gas-based direct-reduced iron technology (ENERGIRON) with our blast furnace equipment technology

  • Developments In Direct Reduced Iron Free Essays - PhDessay

    The rotary kiln, shaft furnace, and the traveling bed reactor vass produce the highest metallization. The rotary fireplace furnace has the fastest procedure clip. The most popular on the market right now is the Midrex shaft furnace with about 60 % of the market portion of DRI production ( table 1 ) .

  • Direct Reduced Iron Industrial Efficiency Technology ...

    The most common technologies used for DRI production are MIDREX and HYL III, both using natural gas (IEA, 2007. p.132). DRI processes can be divided up by the type of reactor employed, namely: shaft furnaces (Midrex ®, HyL) rotary kilns (SL/RN process) rotary hearth furnaces

  • ENERGIRON Direct Reduction Technology - Economical ...

    HYL ZR (or Self-reforming) Process, was developed to allow reduction of iron ores in a shaft furnace without external gas reforming equipment. This process scheme has the ability to produce High Carbon DRI, which allows producers to obtain maximum benefits of ... are generated by in-situ in the reduction reactor, feeding natural gas as make-up ...

  • 3-2 Process Descriptions and Flow Diagrams

    3-2: Process Descriptions and Flow Diagrams ... The Hylsa 4M process is based on a moving bed shaft furnace (similar to HYL III process but without a reformer) which reduces iron ore pellets and ... The HYL 4M reactor operates at similar conditions to the other Hylsa reactors (e.g. HYL III, etc.). The reactor has a cylindrical upper section

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

    pellets, to metallic iron in a shaft furnace. DRI plants based on HYL Technology have stand alone steam reformer in which NG is reformed by steam generated by waste heat of reformer. Outlet spent gases from reactor (furnace) is processed for CO2 removal by Amine/K2CO3 based Adsorption process or

  • Seminar on HYL Process

    HYL III process, a single shaft furnace with a moving bed is used in place of the four original fixed bed reactors. The main equipment of HYL-III comprises a DR shaft furnace, a gas reformer, and a gas reheated. The principles of operation of the furnace are similar to the midrex shaft furnace. 16. Typically HYL offers the following module ...

  • The Use of Hydrogen in the Iron and Steel Industry

    THE USE OF HYDROGEN IN THE IRON AND STEEL INDUSTRY BLAST FURNACE • EAF - E lectric A rc F urnace for steel making is a rapid ... Reformer outside of reactor. Creating syngas H2 CO. HYL III. Partial oxidation of gas entering reactor.

  • 3-2 Process Descriptions and Flow Diagrams

    3-2: Process Descriptions and Flow Diagrams ... The Hylsa 4M process is based on a moving bed shaft furnace (similar to HYL III process but without a reformer) which reduces iron ore pellets and ... The HYL 4M reactor operates at similar conditions to the other Hylsa reactors (e.g. HYL III, etc.). The reactor has a cylindrical upper section

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

    pellets, to metallic iron in a shaft furnace. DRI plants based on HYL Technology have stand alone steam reformer in which NG is reformed by steam generated by waste heat of reformer. Outlet spent gases from reactor (furnace) is processed for CO2 removal by Amine/K2CO3 based Adsorption process or

  • Seminar on HYL Process

    HYL III process, a single shaft furnace with a moving bed is used in place of the four original fixed bed reactors. The main equipment of HYL-III comprises a DR shaft furnace, a gas reformer, and a gas reheated. The principles of operation of the furnace are similar to the midrex shaft furnace. 16. Typically HYL offers the following module ...

  • The Use of Hydrogen in the Iron and Steel Industry

    THE USE OF HYDROGEN IN THE IRON AND STEEL INDUSTRY BLAST FURNACE • EAF - E lectric A rc F urnace for steel making is a rapid ... Reformer outside of reactor. Creating syngas H2 CO. HYL III. Partial oxidation of gas entering reactor.

  • Nuevas tecnologías de REDUCCIÓN DIRECTA

    1. Hornos de cuba (Shaft Furnace) Dentro de los hornos de cuba, se encuentran el horno reductor Midrex y el del proceso HyL, donde el hierro directamente reducido o hierro esponja es obtenido por la reacción entre el mineral de hierro con un gas reductor caliente, que circula en contracorriente, con alto contenido de hidrógeno (H 2) y ...

  • Direct reduction : a review of commercial processes

    The shaft furnace is 16 feet (4.88 meters) in diameter and is rated at 400,000 tonnes/year. The reactor is divided into a reduction zone and a cooling zone. ... ----- reactor is not recycled for reforming as is the product gas from the Midrex furnace. The HyL product is normally controlled at about 85 percent metallization and contains up to 2 ...

  • 2G Direct Reduction - jfe-21st-cf.or.jp

    In the HYL-III process, the H 2 /CO of the reformed gas is 3, the temperature is 1,203K (930), the in-furnace pressure of the countercurrent shaft furnace is 450 kilopascals, and the energy necessary for reduction is basically the same as in the Midrex process. In both processes, higher furnace temperatures result in higher productivity ...

  • FURNACES AND REFRACTORIES - Modern Eq

    Most furnaces use liquid fuel, gaseous fuel or electricity as energy input. Induction and arc furnaces use electricity to melt steel and cast iron. Melting furnaces for nonferrous materials use fuel oil. Oil-fired furnaces mostly use furnace oil, especially for reheating and heat treatment of materials.

  • Smelting Reduction Technologies SAIL

    The DIOS system has three fluidised furnaces .Iron ore is preheated in the first of two fluidized bed reactors in series and pre-reduced to 15-25% in the second reactor using cleaned offgas from the smelter. Dust removed from the smelter, off-gas and fines removed from the gases leaving the fluidized bed reactors are injected back into the smelter.

  • DIRECT REDUCTION PROCESS AND SHAFT FURNACE UTILIZING

    Nov 03, 2017  A shaft furnace for producing metallic direct reduced iron (DRI) from iron-containing pellets or lumps and reducing gas disposed therein, including: a circumferential outer wall defining a top interior reducing zone, a middle interior transition zone, and a bottom interior cooling zone, wherein the iron-containing pellets or lumps travel downwards through the top interior reducing zone, the ...

  • Detailed Modeling of the Direct Reduction of Iron Ore in a ...

    the blast furnace, basic oxygen route [2]. Among DR processes, shaft furnaces represent over 82% of the world’s DR iron production, with the two main processes being MIDREX (65%), as shown in Figure 1, and HYL-ENERGIRON (17%) [3]. In a DR shaft furnace, a charge of pelletized or lu mp iron ore is loaded into the top of the furnace

  • Direct Reduction Combustion Technology ...

    HYL – The HYL gas-based process uses four vertical reactors. The main combustion processes occur in the initial and main reduction reactors, as well as in the gas reformer. The fresh reducing gas that originates in the reformer is gradually heated by passing it through the cooling reactor, the main reduction reactor, and then finally the ...

  • IPT - Instituto de Pesquisas Tecnológicas

    Direct reduction processes are an alternative to the traditional blast furnace due to the use of H2 in the reducing gases, generating less CO2. There are two main technologies for direct reduction of iron: Midrex and Energiron (or HYL), which are responsible for 80% of the DRI production.

  • ENVIRONMENTAL - ASPECTS OF THE DIRECT REDUCTION

    to steel making are less serious than those of the classical blast furnace and scrap melting routes, there remain some environmental problems. Supplementary information can be found in the UNEP overview and technical review on the environmental aspects of the

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    The materials of processing: *

    • Granite
    • Limestone
    • Basalt
    • Pebble
    • Gravel
    • Gypsum
    • Marble
    • Barite
    • Quartz
    • Dolomite
    • Gold Ore
    • Copper ore
    * *

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