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Q: What chemical methods are used to refine coal?
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How much does it cost to refine coal?

The cost to refine coal varies based on the technology used and the quality of the coal. Generally, it can range from $25 to $50 per ton for basic refining techniques, but can be higher for more advanced processes like coal liquefaction or gasification.


What methods are used in coal mining?

You need big buff legs to mine coal


What are two methods used for mining coal?

it comes from lava


Why is petroleum or coal not used more often?

Petroleum and coal are largely used in chemical industry or as fuels.


What energy does coal have?

Coal has chemical energy, which is released when it is burned. This energy is used to generate heat and ultimately electricity.


What types of energy are in coal?

The main types of energy in coal are chemical energy, which is released when coal is burned, and potential energy stored within the coal itself. When coal is burned, the chemical energy is converted into thermal energy, which can be used for generating electricity or heating.


What are the two methods used for mining coal?

The two methods used for mining coal are surface mining and underground mining. Surface mining involves removing layers of soil and rock to access coal deposits near the surface, while underground mining involves tunneling underground to extract coal from deeper deposits.


What are the two methods that people use to extract coal?

Open cast and mining are the 2 used


How is energy stored in coal?

Coal stores energy in the form of chemical energy that was originally produced by ancient plants through photosynthesis and then stored in the coal over millions of years. When coal is burned, the chemical energy is released as heat energy, which is then transformed into electricity or used for other purposes.


Does coal release chemical energy when used?

Yes, when it is burned (oxidized in air), it releases the chemical energy stored within its chemical bonds.


How does clean coal reduce the emission so2?

"Clean coal" primarily from the Powder River Basin, is low in sulfur content compared to other coal sources, and therefor produces less SO2 when combusted. " Clean Coal Technologies" use chemical methods of "scrubbing" SO2 from exiting flue gasses before they can be released to the environment. One byproduct of this technology is gypsum which can be used in wall board for construction.


How do you you use the word coal in a sentence?

The miners dug deep underground to extract coal from the mine.