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Gas Cooling Tower In Sponge Iron Process

gas cooling tower in sponge iron process –

EXECUTIVE SUMMARY – DSIR, M/o Science Technology, Govt. sponge iron manufacturing process arose in late 50′s when Electric Arc gas in cooling section from where the cooled product is removed continuously. » More detailed Rotary Kiln Process of Making Sponge Iron. Rotary Kiln Process of Making Sponge Iron System of indirect cooling of sponge iron

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Iron Sponge Process - an overview ScienceDirect

Typical iron sponge process flow sheet. When periodic regeneration is used a tower is operated until the bed is saturated with sulfur and hydrogen sulfide begins to appear in the sweetened gas stream. At this point the vessel is removed from service and air is circulated through the bed to regenerate the iron oxide.

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Iron Sponge Unit Design Procedures - gas

19-09-2009  The iron-sponge process generally uses a single vessel to contain the hydrated ferric oxide wood shavings. A drawing of an iron-sponge unit showing typical provisions for internal and external design requirements was presented in Figure 7-3.

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Sponge Iron Production Process - Arij Trading

Input iron ore: Input iron ore is in form of cooked pellet in this process and high grade hematite iron ore can be used to a certain extent depending on its condition. Reducing agent: Natural gas is broken after the reforming process. In the Midrex process, carbon monoxide gas has a larger share than hydrogen gas in the reducing gas mixture.

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Iron Sponge Process Oil and Gas Separator

Iron Sponge Process. 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). Carbon dioxide is

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Recovery and utilization of waste heat in a coal

01-06-2012  In the conventional sponge iron production process, water is sprayed from the top on the shell of the inclined rotary cooler to cool hot sponge iron exiting from rotary kiln. The sprayed water is collected in a large trough and sent to the cooling tower for re-use.

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MIDREX Processes - KOBELCO

The process reduces iron ore using a reforming gas made from natural gas. The DRI is used mainly as the raw material for electric arc furnaces (EAFs), as a clean iron source substitute for scrap iron. Pores are left behind in the DRI after oxygen has been removed. These pores, if filled with water, for example, can cause the iron to reoxidize with

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(PDF) i) Direct Reduced Iron: Production

This product is known as direct reduced iron (DRI) or sponge iron. ... DR processes can be broadly classified into two groups: (1) coal-based DR process and (2) gas-based DR process.

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gas cooling tower in sponge iron process –

EXECUTIVE SUMMARY – DSIR, M/o Science Technology, Govt. sponge iron manufacturing process arose in late 50′s when Electric Arc gas in cooling section from where the cooled product is removed continuously. » More detailed Rotary Kiln Process of Making Sponge Iron. Rotary Kiln Process of Making Sponge Iron System of indirect cooling of sponge iron-char mixture in a

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(PDF) Modeling of Rotary Kiln for Sponge Iron

EXHAUST GAS 6000Nm 3 AIR 5000Nm 3 CHAR +3mm 30kg SPONGE IRON 1-3mm 210kg CHAR 1-3mm 75kg SPONGE IRON 0-1mm 50kg WASTE 0-1mm 195kg Process PrincipleThe process of Sponge Iron making in Rotary Kiln is dependent on certain principles. Thermodynamics and kinetics of Gasification and reduction reaction. Temperature profile and Heat transfer from free board to bed

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The HBI direct reduction process - voestalpine

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. The reduction process takes place in the reduction tower.

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Cooling Tower - an overview ScienceDirect Topics

Dennis P. Nolan, in Handbook of Fire and Explosion Protection Engineering Principles for Oil, Gas, Chemical, and Related Facilities (Fourth Edition), 2019 20.16 Cooling Towers. Cooling towers provided in most process industries are typically constructed of ordinary combustible materials (e.g., wood, fiberLimestone, etc.). Although abundant water flows through the interior of the tower, outside ...

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(PDF) i) Direct Reduced Iron: Production

This product is known as direct reduced iron (DRI) or sponge iron. ... DR processes can be broadly classified into two groups: (1) coal-based DR process and (2) gas-based DR process.

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MIDREX Processes - KOBELCO

The process reduces iron ore using a reforming gas made from natural gas. The DRI is used mainly as the raw material for electric arc furnaces (EAFs), as a clean iron source substitute for scrap iron. Pores are left behind in the DRI after oxygen has been removed. These pores, if filled with water, for example, can cause the iron to reoxidize with

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Pollution in the sponge iron industry - SlideShare

7. Sponge Iron units do not use the pollution control equipment. Source: WBPCB,2011. 33 34. West Midnapore, CSE Report • People’s movement very strong against the sponge iron industry especially Rashmi Cement/ Ispat in 2009, in West Midnapore. • Maoist politics emerged solely due to pollution from sponge iron plants in West Midnapore.

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HYL Process for Direct Reduction of Iron Ore –

HYL process is designed for the conversion of iron ore (pellet/lump ore) into metallic iron, by the use of reducing gases in a solid-gas moving bed reactor. Oxygen (O2) is removed from the iron ore by chemical reactions based on hydrogen (H2) and carbon monoxide (CO) for the production of highly metallized direct reduced iron (DRI)/hot briquetted iron (HBI).

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H2S REMOVAL SYSTEM SHOWS PROMISE OVER

Alvin Samuels Gas Sweetener Associates Inc. Metairie, La. Use of a new material as a replacement product for iron sponge (wood chips) for H2S removal has been introduced at two Shell Western EP ...

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Direct Reduced Iron (DRI) Production Plant

and coal gas refined in coal gasifiers, as well as widely-used natural gas, may be used as reducing gases. u NSENGI, Tenova-HYL and Danieli concluded a strategic alliance agreement for the joint development of DRI steel production plant and expansion of the market of DRI in September 2013. Direct Reduced Iron (DRI) Production Plant

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MIDREX Processes - KOBELCO

The process reduces iron ore using a reforming gas made from natural gas. The DRI is used mainly as the raw material for electric arc furnaces (EAFs), as a clean iron source substitute for scrap iron. Pores are left behind in the DRI after oxygen has been removed. These pores, if filled with water, for example, can cause the iron to reoxidize with

More

DRI Tunnel Kiln and Gasifiers Manufacturer Case

Sponge Iron, also known as Direct ... The iron ore is processed through reduction process by the use of gas that emits from natural coal gas resource. ... The Cooling Tower is designed to initialize and aggravate the process of evoporation. View Complete Details. Yes, I am interested! Get in touch with us.

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Cooling Tower Basics: Piping and Controls -

Cooling towers work on the principle of heat rejection: They extract heat to the atmosphere through evaporative cooling. The towers themselves are enclosed, steady-flow devices for cooling water by evaporation through direct contact with air. Cooling towers are used in water-cooled refrigeration, industrial process systems and commercial HVAC ...

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Technical Phylosophy for CPP - CDM: CDM-Home

To recover the sensible heat contained in waste gases from sponge iron exhaust, Waste Heat Recovery Boiler is incorporated on waste heat steam. The boiler unit generates high pressure, high temperature steam which shall be fed to the steam turbine to generate electric power. WHRB BOILER STEAM GENERATION FROM 1X 100 TPD SPONGE:

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sponge iron.pptx Iron Steelmaking

A 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. Gas-based sponge iron is not subjected for magnetic separation, as no contamination with nonmagnetic is possible either it can be cooled indirectly or briquetted in hot condition to get

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Direct Reduced Iron (DRI) Production Plant

and coal gas refined in coal gasifiers, as well as widely-used natural gas, may be used as reducing gases. u NSENGI, Tenova-HYL and Danieli concluded a strategic alliance agreement for the joint development of DRI steel production plant and expansion of the market of DRI in September 2013. Direct Reduced Iron (DRI) Production Plant

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Sour gas sweetening - PetroWiki

06-07-2015  The gas must be water saturated at the tower conditions of temperature and pressure. SulfaTreat has a different molecular structure from that of iron sponge and, upon reaction with H 2 S, forms iron pyrite instead of iron sulfide. The charge of SulfaTreat is replaced when consumed.

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Cooling Water Treatment Chemistry Control and

The Second Law of Thermodynamics clearly states it is impossible to use heat solely to generate work in a cyclic process. ... The gas exits from the cooling tower. H+

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Iron and Steel Knowledge Exchange Platform

Resource Name: Best Practices adopted by TATA Sponge Iron Limited . Abstract: The resource presents benefits achieved by replacing of impeller of Kiln #2 ID fan motor (3.3 KV, 260 kW motor), replacing of under loaded LT motors with correct size motors of DE system of Kiln-1 Kiln-3, VFDs for pump motors running in throttled condition, different VFD panels for odd

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Understanding the Basics of Cooling Tower Heat

Cooling Tower Basics. ... some water also escapes the process as fine moisture droplets in the cooling tower fan ... Association of Iron and Steel Technology, Cooling Technology Institute ...

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DRI UPDATE - Sponge Iron Manufacturer India

10.Auto control of operation of cooling tower fan with sponge temperature. ... Indirect cooling of product from 1050°C to 100°C. 17 17 ... FLUE GAS POWER SPONGE IRON PIG IRON C C M Rolling Mill FINISHED Products Mill Scale BF Flue Dust LD Sludge Coke Fines Binders Iron Ore Fines POWER

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Inhibition of reoxidation of direct reduced iron ( DRI) or ...

Keywords: Inhibition of Reoxidation, Waxing Process, Sponge Iron, Metallization, Fines 1. Introduction The industry of direct reduced iron (DRI) is appeared at ... through cooling towers by using cold nitrogen gas . The disadvantages of this process are ,sodium silicate which coated the pellets is soluble in water ,thus when DRI exposed

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Cooling Tower Basics: Piping and Controls -

Cooling towers work on the principle of heat rejection: They extract heat to the atmosphere through evaporative cooling. The towers themselves are enclosed, steady-flow devices for cooling water by evaporation through direct contact with air. Cooling towers are used in water-cooled refrigeration, industrial process systems and commercial HVAC ...

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TATA

TATA SPONGE IRON LIMITED Environmental Compliance Report Period: 01/10/2018 to 31/03/2019 ECRef. No. J-11011/16/2004-IA(I) dt. 11.11.2004 and J-11 011/3/9811A II (I) dt. 14.10.1998 A. Specific Conditions and its compliance Report: Specific Conditions Compliance i. The gaseousemission from various process units should

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Generation of Energy Conservation Measures for

At 1200 C Sponge iron: 20.83 t/h, Char: 2.8 t/h, Spent lime: 0.175 t/h, Ash: 1.617 t/h Water: 750 m3 /h at . 300 C (30 m3/h water evaporates) 720 m3 /h water goes to . cooling tower at 34.90 C . DSC . DSC Dust: 1 t/h at 800 C . Central burner Air at 12000 m3 /h at 30 0 C ABC . Water: 17 t/h At 42 bar 300 C Air: 12000 m3 /h . At 30 C (+1mbar)

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What Is a Cooling Tower Water Treatment

For industrial companies using a cooling tower for its facility, some type of cooling tower water treatment system is usually necessary to ensure an efficient process and long equipment service life. If cooling tower water is left untreated , organic growth, fouling, scaling, and corrosion can reduce plant productivity, cause plant downtime, and require costly equipment replacements down the road.

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Recovery-and-utilization-of-waste-heat-in-a

In the conventional sponge iron production process, water is sprayed from the top on the shell of the inclined rotary cooler to cool hot sponge iron exiting from rotary kiln. The sprayed water is collected in a large trough and sent to the cooling tower for re-use.

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Cooling Tower Calculations - Cooling Water

06-02-2020  Increasing LMTD TTD means there is reduced heat transfer occurring, and the system might be fouling on the process side or the cooling water side. In Conclusion, above all cooling tower calculation are the most important part of any cooling water treatment program to

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Water Handbook - Cooling Water Corrosion

This reaction is accompanied by the following: Fe 2+ + 2OH ¯ = Fe (OH) 2. The ferrous hydroxide then combines with oxygen and water to produce ferric hydroxide, Fe (OH) 3, which becomes common iron rust when dehydrated to Fe 2 O 3. The primary cathodic

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