Coal is a plentiful resource that has been used for thousands of years to produce energy, both in the form of heat and electricity.
Coal is a fossil fuel created from the remains of plants that lived and died about 100 to 400 million years ago when parts of the earth were covered with huge swampy forests. Coal is classified as a nonrenewable energy source because it takes millions of years to form.
Coal is used primarily as an energy source, either for heat or electricity. It was once heavily used to heat homes and power locomotives and factories. Bituminous coal is also used to produce coke for making steel and other industrial process heating. Coal gasification and coal liquefaction (coal-to-liquids) are also possible uses of coal for producing synthetic fuel. Approximately 4% of the coal mined in the United States is exported, and most of the exported coal is used for making steel.
Charcoal Powder from Rice Husk
Charcoal is produced in kilns and retorts. The thermal decomposition of wood in a kiln with a controlled air supply produces charcoal. The gaseous products and some of the wood are burned. Retort charcoal is generated in the absence of air. Originally, charcoal was used as a smokeless, odorless fuel for heating and cooking and it is still used today for these purposes by people in well-wooded underdeveloped countries. Charcoal granules are used as a food additive for domestic animals. It is used for the production of black powder.
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