With all the forms of coal being used for so many things, it is at least somewhat important to know how the coal forms in the first place. The many kinds of coal that are mined and shipped off to be used are done so in many different ways. From pillar mining, mostly executed underground, to aboveground methods such as Area mining or Contour mining. The mined coal can also be converted into several different forms of fuel. The first of these is coal oil, created by the process known as coal liquefaction.
Coal Liquefaction is converting coal into liquid hydrocarbons, liquid fuels and petrochemicals. Coal Liquefaction is commonly known as “CTL” or “Coal to Liquid Fuels.”
Converting coal into a gaseous state is known as Coal Gasification. It is done in order to produce a mixture of substances known as syngas.
With the use of the many
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The world’s largest deposits of coal can be found in the United States, Russia, China, and India. With almost 900 billion tons of coal reserves worldwide. The advantages and disadvantages of using coal in it’s other forms are the same as using it in it’s normal form.
The several forms of coal that are mined are Humic, Sapropelic, Cannel coal, Boghead coal, Peat, Paralic, and Limnic. Coal can be formed by Biochemical Degradation and Physico-chemical coalification.
The forms of coal before human interference are Wood, Peat, brown coal, sub-bituminous, high volatile bituminous, medium volatile bituminous, low volatile bituminous, semi anthracite and anthracite.
The largest reserves of coal in the world are in the US, with more than a quarter of all deposits in the world. However, China is the world’s biggest producer and user of coal, while the US is only second, Australia at third, India at fourth, and the EU at the fifth