Coal tar

Coal tar is derived from coal. It is a byproduct of the production of coke, a solid fuel that contains mostly carbon, and coal gas.

Since the Industrial revolution, bituminous materials are very much preferred in building and road constructions. These materials are composed of highly molecular weight hydrocarbons, and soluble in carbon disulfide. There are many grades of bitumen, each of which exhibits different characteristics. The performance of each grade of bitumen depends largely on its physical properties like […] The post Difference Between Coal Tar and Asphalt first appeared on Difference Between.

Bitumen is the heavy end (i.e. higher molecular weight) residue from the fractionation of crude oil. When you have extracted such things as fuels, fuel oils, lubricating oils and waxes from the crude oil, what is left is a thick sticky black liquid, consistency anything from "treacle" up to a firm glassy amorphous sold. That is bitumen. Tar is similar, but is not extracted from crude oil; it is extracted from coal. Asphalt is a mixture of bitumen and aggregates (inorganic heavy fillers…

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Advantages: - It's easily transported to many areas in the world - Inexpensive to buy on open market due to large reserves and easy access ability - Coal is the least expensive fossil fuel because it is rather simple to mine - Coal powered generation scales well, which makes it possible to build a variety of sizes of generation plants -Since coal is a fossil fuel, it can be used to build power stations almost anywhere as long as there are large amounts of it Disadvantages: - Coal must be…

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