Key economic values ​​that coal brings to industries

• Coal is mainly used in thermal power plants. Modern coal burning systems can use different types of coal (depending on the system’s design).
• However, a plant designed for a particular type of coal may not be suitable for other types of coal.
• Coal-fired power plants are a traditional source of electrical power in countries such as the United States, Canada and Australia, and are currently growing rapidly in India and China.
• In addition to electricity, coal is also used as an energy source to produce cement, this is an important product for the construction industry.
• Cement is made from a mixture of calcium carbonate, silica, iron oxide and alumina usually burned by coal in a high temperature furnace.
• This clinker is mixed with gypsum and ground into a fine powder to make cement. The furnace usually burns coal in the form of a powder, for example ~ 70% <75 microns and consumes about 450 g of coal (bitumen) per ton of cement produced.

• Metallurgical coal or coking coal is very important for steel industry, especially sustainable steel production, because more than 70% of global steel production is dependent on coal.+ In 2010, the world crude steel output is 1.4 billion tons, using about 721 million tons of coking coal.
• There are also other forms of coal use, such as converting coal into gas gasification so as not to pollute the environment.