coke oven gas boiler

Coke oven battery having twin heating flues

The coke oven battery according to claim 1 wherein said plurality of exit ports to feed lean gas into upgoing flues of said twin heating flues have cross-sectional sizes that progressively decrease upwardly along header walls from port-to-port, and means to control the amount of lean gas supplied to upgoing flues of said twin heating flues in ...

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Waste Heat Recovery

Table 13 ­Typical Coke Oven Gas Composition 38 Table 14 ­Basic Oxygen Furnace Off­gas Composition 40 Iron/Steel Production 42 In Aluminum Refining and Melting 43 Process Exhaust Gases in Metal Casting 45 Boiler Exhaust Gases 48 Table 19 ­Unrecovered Waste Heat and Work Potential from Ethylene Furnaces 49 Exhaust Gases 53

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coke oven gas and blast furnace gas heat recovery boilers

Our coke oven gas and blast furnace gas heat recovery boilers mainly produce hot water, saturated steam or superheated steam for industrial use. coke oven gas and blast furnace gas heat recovery boilers have lower operating costs – nearly 50% lower than boilers using oil or natural gas.

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Using Coke Oven Gas in a Blast Furnace Saves Over $6 ...

Coke is an essential input to the steel-making process and is produced by heating coal in coke ovens. To make coke, coal is heated in the absence of oxygen to drive volatile matter from it. Coke oven gas, a low-BTU gas, is produced as a by-product of the process. Approximately 40% of the COG is used as a fuel in the coke oven.

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Algoma Steel out to clean the air on coke oven gas ...

 · Algoma Steel out to clean the air on coke oven gas. Algoma Steel has secured approximately $4 million from the federal government to shrink its carbon footprint through the modernization of its tar and light oil plant. The Sault Ste. Marie steelmaker anticipates that greenhouse gas emissions will be reduced by 596,000 tonnes over the 30-year ...

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12.2 Coke Production

Coke oven gas is the most common fuel for underfiring coke ovens. A typical coke manufacturing process is shown schematically in Figure 12.2-2. Coke manufacturing includes preparing, charging, and heating the coal; removing and cooling the coke product; and cooling, cleaning, and recycling the oven gas.

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Coke Oven Gas

Coke oven gas is formed by heating coal to 1100 °C without access of air. The classic composition of coke gas: hydrogen (H 2 - 51%), methane (CH 4 - 34%), carbon monoxide (CO - 10%), ethylene (C 2 H 4 - 5%). The composition may also include benzene (C 6 H 6 ), ammonia (NH 3 ), hydrogen sulfide (H 2 S) and other components.

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Coke Oven Gas Generation and Usage – IspatGuru

 · Coke oven gas forms a major component in the energy balance of the steel plant. It is normally used in coke oven battery heating, heating in other furnaces of the steel plant, and for power generation. Coke oven gas can be used as such or can be mixed with the blast furnace gas before being used as fuel in a furnace.

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LIST OF STANDARD CLASSIFICATION CODES (SCC)

10200707 External Combustion Boilers Industrial Process Gas Coke Oven Gas 10200710 External Combustion Boilers Industrial Process Gas Cogeneration 10200799 External Combustion Boilers Industrial Process Gas Other: Specify in Comments 10200802 External Combustion Boilers Industrial Coke All Boiler Sizes

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Coke Oven Heating Regime | Chimney | Coke (Fuel)

heating regime. heating by either co gas or mixed gas.. air required for combustion enters and waste gases generated are disposed, thru whbox by the draft of chimney air quantity is regulated with the help of finger plates, flap opening,lower banana,draft damper and chimney gates.. co gas from network preheated to 65 deg c and supplied to all 68 risers each on p/s & p/s each gas riser is ...

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Coke Oven Gas Valve

Founding - Spheroidal graphit cast irons for example: EN-GJS-400-15 (GGG-40) A 536 Grade 60-40-18. Connections. Flanged ends. Threaded endss. other connections as required. Operation. Wrench, lever, special coke oven plant operation system. Approvals. Stem sealing system approved in accordance with VDI 2440/ TA-Luft.

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Coke Oven Gas

It was used for gas lamps, for heating and cooking. In many parts of the world the population was supplied with purified coke oven gas as town gas. In the 1960s coke oven gas (town gas) was replaced by natural gas as a fuel – and fell into oblivion as a source of energy in many places.

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Coke Oven Gas

gas burners Coke oven gas firing system at a steel plant in Germany This system is run with six SAACKE TEMINOX GS Low-NO x gas burners on three 30 t/h steam double flame tube boilers. Two boilers are fired with natural gas and one solely with coke oven gas. Technical data Application Shell boiler; 20 t/h; 16 bar, saturated steam Burner model ...

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Coke oven processing gas monitoring solution

Coke oven processing gas monitoring solution. The modern coke oven refers to a horizontal chamber coke oven with the main purpose of producing metallurgical coke and can recover coking chemical products. The coke oven furnace body consists of the furnace roof, the combustion chamber and the carbonization chamber, the ramp area, the heat storage ...

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Coke Oven Gas

1.1.4.2.5 Coke Oven Gas. COG is a strong fuel but it is less useful compared to other injected fuels in the lower part of the blast furnace. COG contains H 2 = 60%, CH 4 = 24%, CO = 6%, CO 2 = 2%, and N 2 = 6%, but only carbon in CH 4 is oxidized in the raceway to CO releasing heat. CO 2 reacts with coke carbon to CO consuming energy, whereas H ...

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MINISTRY OF STEEL, COKE OVENS, COKE GOVT. OF INDIA …

The main function of Coke Ovens is to convert coal into coke which is used as a fuel and reducing agent in the Blast Furnace. Its secondary function is to recover Volatile Matter and CO (Coke Oven) gas from coal and extract chemicals known as Coal Chemicals. CO gas produced is used for heating …

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How a Coke Plant Works

 · This process is referred to as ''dry distillation'' because these coke ovens are oxygen free, so the coal does not actually burn. This process takes around 18 hours to convert 35 tons of coal into 25 tons of coke. After heating up the coal into coke, the coke is then unloaded from the oven …

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coke oven gas blower, coke oven gas blower Suppliers and ...

A wide variety of coke oven gas blower options are available to you, such as medium pressure, high pressure. You can also choose from air blower coke oven gas blower, as well as from manufacturing plant, hotels, and building material shops coke oven gas blower, and whether coke oven gas blower is 1 year, or 4 years.

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coke oven gas boiler – Water Tube Boiler

 · Coke Oven Gas Fired Boiler–ZBG. Coke oven gas fired boiler is available for iron-making, steel-making plant. COKE-OVEN GAS. Coke-oven gas is a fuel gas having a medium calorific value that is produced during the manufacture of metallurgical coke by heating bituminous coal to temperatures of 900°C to 1000°C in a chamber from which air is excluded.

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Coal gas

Coal gas is a flammable gaseous fuel made from coal and supplied to the user via a piped distribution system. It is produced when coal is heated strongly in the absence of air. Town gas is a more general term referring to manufactured gaseous fuels produced for sale to consumers and municipalities.. Coal gas contains a mixture of calorific gases including hydrogen, carbon monoxide, methane ...

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OGNEUPORKOKSSERVIS

Heating system: PVR with bottom supply of coke oven gas (non-hybrid heating), heating wall consists of 28 channels (14 pairs) with high burners (300 mm). Submission of heating gas is carried out through one distribution gas pipeline on both sides of coke oven. Gas is supplied to each heating wall through a pair of under pier buttress collectors ...

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Numerical study of air staging in a coke oven heating system

cess, namely by heating hard coal without air access. The thermal energy required by this process is generally pro-vided through a coke oven gas (COG) or blast furnace gas (BFG). In Polish coke plants, COG is mainly used as a by-product of the coking process. Therefore, a significant amount of NO, i.e. 400 g/Mg to 950 g/Mg of coke, is

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CLEAN DEVELOPMENT MECHANISM PROJECT DESIGN …

Non-recovery type Coke Oven gas based Waste Heat Recovery Boilers (WHRB) of 45 TPH each and a 32 TPH Blast Furnace Gas Fired Boiler (BFGFB). Under the project activity, SISCOL would collect and supply all the coke oven flue gases (COFG) from the Non-recovery Coke Oven plant and the excess cleaned Blast Furnace Gas

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Restricting Emission of Sulphur Dioxide From Coke Ovens ...

The concentration of sulphur dioxide in the waste gases of the coke ovensj at the top of the stack5 is dependent on the composition of the underfeed gas, the excess volume of combustion air and the content of the underfeed gas in sulphur "Containing compounds„ For example,, in the combination of coke-oven gas with a combustion heat of 5j030 ...

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Blast Furnace / Coke Oven Gas Fired Boiler--ZBG

The coke oven gas/blast furnace gas boiler adopts "Π" type layout, front suspening back supporting, the plumping system, and superheater are suspended in the boiler roof, economizer and air preheater are set at the rear of steel frame, and the air preheater can be pulled out from the boiler rear, easy for maintenance and inspection.

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Optimal Combustion Process

Power plant boilers normally run about 10 to 20 percent excess air. Natural gas-fired boilers may run as low as 5 percent excess air. Pulverized coal-fired boilers may run with 20 percent excess air. Gas turbines runs very lean with up to 300 percent excess air. Typical values of excess air for some commonly used fuels are shown in the table below:

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Improvement on heating efficiency of fuel in coke oven at ...

 · The ovens were built of silica brick of density 2.34 g/cm/sup 3/. The underjet heating system was designed to burn coke-oven gas. The heating level was set at 1100 mm. The heating walls were constructed to provide for combustion-product recirculation through pairs of …

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Blast Furnace, Coke Gas and Converter Gas for Power Production

Coke Gas. Coke gas is a by-product of industrial coke production from pit coal, coke gas is created by high-temperature dry distillation of coking coals in the absence of oxygen. The gas mainly consists of hydrogen (50-60%), methane (15-50%) and a small percentage of …

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What is Coke – Clean Air Council

This leveling process helps ensures that the coke oven gas (COG) produced by heating process will flow smoothly through the coke oven battery''s offtake system. Once the leveling is complete, the charging port for each oven is sealed by a process called "luting." The luting process involves pouring a wet clay mixture around the edges of ...

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Non-recovery coke oven gas combustion system

 · The coke oven gas is burned in the boiler where a suction fan is provided at the exhaust of the boiler to develop a negative pressure in the system where the boiler has reinforced walls to withstand the negative pressure. A change in negative pressure in the system is detected and monitored by a controller system which varies draw of the ...

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US9057023B2

A process for keeping coke oven chambers hot during the stoppage of a waste heat boiler. The coke oven chambers are kept hot after emptying using externally heated burners, in which a flue gas low in pollutants is obtained from the burners. The waste heat boilers which, during normal operation, cool the flue gases can be shut off and overhauled, and a flue gas low in pollutants which can be ...

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(PDF) Coke Oven Intelligent Integrated Control System

 · Coke oven heating temperature was reflected by flue temperature and adjusted by gas flow. Aiming at the coke oven heating process characteristics of …

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