Which gas is used for heating coke stove?
For making coke, coal is heated in the absence of air to drive volatile matter (VM) from it. Conversion of coal to coke is called coal carbonization and the process is carried out in coke ovens….Coke Oven Gas Generation and Usage.
| Tab 1 Composition of raw coke oven gas | ||
|---|---|---|
| Sl. No. | Chemical name | % Volume |
| 1 | Hydrogen | 52-59 |
| 2 | Methane | 26-33 |
| 3 | Nitrogen | 1.9-5.7 |
What is the composition of 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 (H2 – 51%), methane (CH4 – 34%), carbon monoxide (CO – 10%), ethylene (C2H4 – 5%). The composition may also include benzene (C6H6), ammonia (NH3), hydrogen sulfide (H2S) and other components.
How do you make a gas oven with coke?
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.
Is coke oven gas flammable?
Characteristics of coke oven gas It is a flammable gas with lower explosive limit of 4 % and upper flammability limit of 75 %. Its vapour density is 0.39 (air=1) and relative density is 0.589. Raw coke oven gas is a flammable material with a flash point of less than 60 deg C.
How many types of gas does coke have?
There are at least four basic types of petroleum coke, namely, needle coke, honeycomb coke, sponge coke and shot coke.
What is the percentage of carbon in coke?
Composition
| Component | Petcoke (Calcined @ 2375°F = 1300°C) |
|---|---|
| Carbon (wt%) | 98.0-99.5 |
| Hydrogen (wt%) | 0.1 |
| Nitrogen (wt%) | |
| Sulfur (wt%) |
Which gas is found in Coca Cola?
Carbon dioxide (CO2)
Carbon dioxide (CO2) gas is present in the bottle of a cold drink. When the coke is made in a Coca-Cola plant, the workers pump carbon dioxide into the coke to carbonate it. It is because of this gas (CO2) that we burb. This gas is carbonic acid.
What is the heating value of coke?
24.8 million Btu per ton
Coke from coal is grey, hard, and porous and has a heating value of 24.8 million Btu per ton.
What is M40 in coke?
The coke mechanical strength are indicated as micum 10 (M10) and micum 40 (M40) which are indices of resistance to abrasion and fragmentation, respectively. Dilatometers and plastometers are commonly used to study coals plastic properties. On.
What is coke fuel formula?
Chemical formula of Coal that is available naturally is estimated as. C₁₃₅ H₉₆ O₉ N S and coal also has some moisture (H₂O). During the destructive distillation process most of other elements go out and Carbon content increases to 85% to 95%.
What is coke rate in blast furnace?
While the Coke rate (Specific Consumption of Metallurgical Coke/ Ton of Hot Metal) of globally best performing Blast Furnaces is ~ 300-350 Kgs/THM, that of the Indian Blast Furnaces is 450-550 Kgs/THM. One of the major reasons behind this is the high Alumina & Silica content in the Indian iron ore.
What is coke gas used for?
The most common use of coke is as a fuel for stoves, furnaces and blacksmithing. It is sometimes preferred over coal because burning coke produces very little smoke. It is also used to produce iron in a blast furnace. Coke is used to manufacture steel and many other materials.
What chemicals are in Coca-Cola?
Ingredients. CARBONATED WATER, HIGH FRUCTOSE CORN SYRUP, CARAMEL COLOR, PHOSPHORIC ACID, NATURAL FLAVORS, CAFFEINE.
How hot can coke burn?
Coke inflames at 700 °C (1292°F) and it burns at maximum temperature from 2300 to 2500 (4172-4532°F).
What is M40 and M10 in coke?
What is CSR and CRI of coke?
Coke reactivity to carbon dioxide (CRI) determines percent weight loss of coke, as a result of carbon dioxide action on the coke sample in temperature 1100°C. The coke strength after reaction (CSR) determines >10 mm grain amount yield obtained after mechanical tumbling of coke after reaction with carbon dioxide.
What is the coke rate kg THM for ideal blast furnace?
The present day blast furnaces use very low coke rate in view of its scarcity. The Indian blast furnaces use 507 kg coke ton− 1 hot metal against 250 kg ton− 1 hot metal under global best practice.
How coke rate can be reduced in the blast furnace operation?
Blast furnace coke rate reduces by around 2 % with the blast temperature increasing by 100 deg C. High top pressure also reduces the coke rate in the blast furnace. With every increase of top pressure of the blast furnace by 0.1 kg/sq cm there is a reduction of around 0.1 % in the coke rate.
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