Montana ranks the number six.
Coal is mined by two methods: surface or 'opencast' mining or underground or 'deep' mining.The choice of mining method largely depends on the geology of the coal deposit. Underground mining currently accounts for a bigger share of world coal production than opencast; although in several important coal producing countries surface mining is more common.
Coal is burned to heat water (in a very large boiler). The water is heated to steam. The steam is then used to turn a steam turbine. The turbine turns a generator, producing electricity!
Sometimes called "brown coal," lignite is the lowest quality and most crumbly coal. This softer and geologically "younger" coal sits relatively close to the earth's surface. Lignite can be broken down chemically through coal gasification, the process of producing syngas from coal along with water, air and/or oxygen. This creates synthetic natural gas that delivers more power and is easier to operate in commercial scale electric generations.
A boiler in a coal power station is responsible for converting water into steam. The coal is burned in the furnace of the boiler, producing heat which is used to generate steam. This steam is then used to drive a turbine, which spins a generator to produce electricity.
Coal Bunker, Coal scuttle, Coal hod
it's world rank is 1
Zambia is currently 9 or 10 in ranking of copper producing countries.
The only advantage of producing electricity from coal is that it will cost cheaper.
china & the usa
2.38 billion tons
As Much As I Need
name the states in India which producing coalWest Bengal
Under the ground but it is mined both underground and in open pits. China is the biggest coal producing county in the world but the USA has the largest coal deposits and reserves. Other major coal producing countries include Russia, India, Australia and South Africa.
The coal reserve in Jharkhand is the largest in India, producing more than 80 metric tons of coal.
Yes, by the 1990's Texas was the nations 6th largest coal producing states