hyl shaft furnace reactor
HYL Process for Direct Reduction of Iron Ore – IspatGuru
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 ...
rotary hearth furnaces for direct reduction al based
Shaft furnaces, rotary kilns, rotary hearth furnaces and fluidized bed reactors are used for direct reduction of iron ore. 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.
XXX HYL NEWS - TENOVA
TENOVA HYL The experience gained in the last decade of implementation of high capacity plants allows ... the reduction reactor, feeding NG as make-up to the reducing gas circuit and injecting oxygen at the inlet of the reactor. Prevailing ... employs a continuous shaft furnace-based process, with both the product quality and process efficiency ...
Direct Reduction Equipment | HeatTreatConsortium.com
HYL. The equipment most directly related to the DRI production in the HYL process is contained in the reduction and cooling circuits. Following is a list of major pieces of equipment: Reduction Zone – the reduction zone of the vertical reactor primarily removes oxygen from …
Modelling a new, low CO2 emissions, hydrogen steelmaking ...
a hydrogen-operated shaft reactor quite smaller than current MIDREX and HYL. Globally, the hydrogen steelmaking route based on this new process is technically and environmentally attractive. CO 2 emissions would be reduced by more than 80%. Its future is linked to the emergence of the hydrogen economy. Key words: Low CO
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 ...
Industry.Guru: Iron making processes
While HYL is a batch-type gas based process and uses a countercurrent shaft-furnace, the SL/RN process utilizes rotary kiln to reduce lump ore, pellets and sand iron with coal. Here we will discuss about some key features, including advantages and disadvantages of these two DR processes.
Developments In Direct Reduced Iron - PHDessay.com
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 .
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
HyL Process | PDF | Energy Technology | Procedural Knowledge
direct form to the electric arc furnace Furnaces and Equipment Furnace and Equipment Reduction Shaft Furnace Furnace and Equipment Furnace and Equipment Furnace and Equipment Reformer Process Chemistry HyL I Process • Plant consists: gas reformer and four reactors • Each reactor: four steps of about 3 hours each. Stage 1: cooling stage
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 ...
Modelling a new, low CO2 emissions, hydrogen steelmaking ...
In an effort to develop breakthrough technologies that enable drastic reduction in CO2 emissions from steel industry (ULCOS project), the reduction of iron ore by pure hydrogen in a direct reduction shaft furnace was investigated. After experimental and modelling studies, a 2D, axisymmetrical steady-state model called REDUCTOR was developed to simulate a counter-current moving bed reactor in ...
HYTEMP SYSTEM - ENERGIRON
The HYTEMP System involves an ENERG IRON hot discharge direct reduction reactor connected to an adjacent electric furnace mill by means of a pneumatic transport system. HYTEMP iron is DRI produced at high temperature (700°C) and which is pneumatically transported from the reactor discharge to the meltshop for direct feeding to the EAF. In this ...
MIDREX® Process - Midrex Technologies, Inc.
The shaft furnace is where iron ore is converted to metallic. Iron oxide, in pellet or lump form, is introduced through a proportioning hopper at the top of the shaft furnace. As the iron ore descends through the furnace by gravity flow, it is heated, and the oxygen is removed from the iron ore (reduction) by counterflowing gases that have a ...
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 ...
Direct Reduction Process - an overview | ScienceDirect Topics
Direct Reduction Process. Direct reduction process takes place in a shaft furnace, rotary kiln, or fluidized beds at typical temperatures of 800−1200 °C through a reducing gas, such as syngas or pure hydrogen. From: Journal of CO2 Utilization, 2021. Download as PDF. About this page.
IPT - Instituto de Pesquisas Tecnológicas
Abstract: Ironmaking is the major energy consuming and CO2-emmiting step in steel production. 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 ...
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 ...
Shaft Furnace | Scientific.Net
Abstract: Pre-reduction shaft furnace is a typical gas solid countercurrent reactor, in which complex transport phenomenon exists between gas-solid phases. In the present paper, a mathematical model has been developed to simulate the actual pressure field of the shaft furnace, the gas flow field and the distribution of gas flow backwards.
Non-isothermal Reduction Behavior and Mechanism of …
slurry gasification (WCSG), Midrex, and HYL-III. Mean-while, the phase compositions and morphological changes of reduced HVTMP were intensively studied. The aim of this study is to obtain scientific direction for reactor design and operational parameter determination of shaft furnace, as well as provide both theoretical and technical basis for the
MIDREX Processes -
The experience of operating the shaft furnace with a diameter of 6.5m has led to the construction of a larger shaft furnace at Saudi Iron & Steel Company in Hadeed, Saudi Arabia in 2007. This shaft furnace has a diameter of 7.15m and an increased production capacity of 1.8 million tonnes/year (Fig. 7). Another shaft furnace, SUPER MEGAMOD,
Hydrogen Ironmaking: How It Works - MDPI
The reactor is generally a vertical shaft furnace, whose reducing gas (a CO-H2 mixture) is obtained by natural gas reforming. The corresponding industrial processes are MIDREX and HYL-ENERGIRON. Rotary earth furnaces are also employed, using coal as the carbon source. If this substitution (C by H2) was carried out in the blast furnace, ...
Direct Reduced Iron and its Production Processes – IspatGuru
The gas based process uses a shaft furnace for the reduction reaction. The coal based process uses any one of the four types of reactors for the reduction reaction. These reactors are (i) rotary kiln, (ii) shaft furnace, (iii) fluidized bed reactor, and (iv) rotary hearth furnace. Rotary kiln is the most popular reactor for the coal based process.
Operation and Simulation of Pressurized Shaft Furnace for ...
and HyL-III process') has some advantages to improve the production rate, few attempts have been made on the fundamental studies of high pressure reduction in the shaft furnace. In view of the present status of the direct reduction mentioned above, a pressurized shaft furnace in labo-
ALTERNATIVE ROUTES OF IRON MAKING
SHAFT FURNACE OPERATION AND REDUCTION REACTIONS: • The blast preheated at 780-800°C and operated on a bedded charge of small lump of iron ores, limestone, low temp. carbonized lignite coke briquettes as raw materials. It can also be charged as batch process individually. • The reactions taking place in the shaft furnace are given below.
XXX HYL NEWS - TENOVA
XXX HYL NEWS HYL NEWS In this issue § Technological achievements, experience and trends in H 2-based ... Electric Arc Furnace (DR-EAF) has always been characterized by the ... or ~90% vol. at reactor inlet, the process scheme is simpli fied by eliminating the need for a selective CO
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. 3C. J. Min. Met. 38 (3 ‡ 4) B (2002) ...
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. ... ----- 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 2.5 percent C. ... treated in wet scrubbers and the cleaned gas is ...
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
DIRECT REDUCTION PROCESS AND SHAFT FURNACE UTILIZING …
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 ...
(PDF) State of the direct reduction and reduction smelting ...
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.
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
Flash Smelting - 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 ...
HyL IV | Downstream Consulting Pty Ltd
Iron oxide feed to the HYL IV process is in the form of lump ore, pellets or a mixture of both. Reduction and reforming reactions take place in the cylindrical upper section of the furnace. The reduced solids are discharged from the lower conical section of the furnace through a rotary valve.
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 …
(PDF) Detailed Modeling of the Direct Reduction of Iron ...
In a DR shaft furnace, a charge of pelletized or lump iron ore is loaded into the top of the furnace and is allowed to descend, by gravity, through a reducing gas. The reducing gas, comprised of
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
STEEL-DRI – GMB-Group
COMPANY LOCATION AREA UNIT YEAR; Nu-Iron: Trinidad Reactor-reformer Midrex: 2019: General maintenance, shaft furnace, reformer heat recovery, 30 ton ref. inst.
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.
Emerging Technologies for Iron and Steelmaking
The AISI process uses a Hyl or Midrex type shaft furnace for pre-reduction and must use primarily lump or agglomerated ore as its feed material. In these smelter reactors, post combustion provides approximately 60% of the required energy.