What is the difference between bituminous and anthracite varieties of coal?

What is the difference between bituminous and anthracite varieties of coal Class 8?

Anthracite coal contains more than 80% carbon. … Bituminous coal contains 60% to 80% carbon.

Which is better bituminous or anthracite coal?

Unlike bituminous coal, which produces a thick, black smoke and has a high sulphur content, anthracite has the highest carbon content of any coal and burns cleanly. Comparatively, anthracite is a more expensive solid fuel, but there is a marked performance increase when used as a domestic fuel.

Which is the best variety of coal under bituminous coal?

Sub-bituminous coal or black lignite is a grey-black or dark brown coal. It ranges from hard to soft as it represents an intermediate stage between low quality lignite and higher quality bituminous coal. The carbon content of sub-bituminous coal varies from 70-76%.

What are the 4 types of coal?

Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite. The ranking depends on the types and amounts of carbon the coal contains and on the amount of heat energy the coal can produce.

What are the 4 stages of coal formation?

There are four stages in coal formation: peat, lignite, bituminous, and anthracite.

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Why coal is the best energy source?

Cheapest source of energy. It is by far cheaper than nuclear, natural gas, oil. … Coal also provides a stable source of energy (no Arab oil embargoes, no sudden scarcity like you experience with natural gas) and there is a very plentiful supply both in the U.S. and in other foreign countries.

Is coke obtained from coal tar?

Coal tar: It is obtained as a by-product in the process of making coke. Though its colour is the same as coke, tar is a highly viscous liquid.

Coal And Its By – Products: Coke, Tar And Coal Gas.

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