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Coking

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Coking is the process of producing coke from coal. Coke—grey, hard, and porous—is a solid carbonaceous residue derived from low-ash, low-sulfur, bituminous coal off of which volative constituents of the coal are driven by baking in an oxygen-free oven at temperatures up to 1,000 ºC (2,000 ºF) so that the fixed carbon and residual ash are fused together.[1] The primary use of coke is as a source of fuel as well as a reducing agent in the smeltering of ore in a blast furnace in steel and iron manufacturing. Other by-products of converting coal to coke include coal-tar, ammonia, light oils, and coal gas.

[edit] References

  1. Coal. Spiritus Temporis. 23-06-2009.