What are the physical characteristics of coal?
Result of chemical composition and physical characteristic (proximate, ultimate analysis and calorific value of coal and mangrove wood were as follow: coal from Kaltim Prima Coal were moisture: 16.11%, ash: 3.77%, volatile matter: 43.10%, fixed carbon: 37.01%, carbon content: 44.86%, sulfur content: 0.130% and …
What are the 4 types of coal?
Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite. The ranking depends on the types and amounts of carbon the coal contains and on the amount of heat energy the coal can produce.
What are the 5 main types of coal?
|Coal||Dry, Carbon content (%)||Dry, volatile content (%)|
What are the characteristics of coal and uses?
Coal is black and hard as stone. It is one of the fuels used to cook food. Earlier, it was used in railway engines to produce steam to run the engine. It is used as fuel in thermal power plants to produce electricity and in various other industries.
What are the characteristics of coal for Class 8?
Coal contains a number of elements such as carbon, hydrogen, oxygen, nitrogen and sulphur. When coal is heated in the absence of air, a number of products are obtained. (1) Coke: contains 98 % carbon. It is porous, tough, black and the purest form of coal.
What are the main elements of coal?
The organic compounds in coal are composed of the elements carbon, hydrogen, oxygen, nitrogen, sulfur, and trace amounts of a variety of other elements.
What are the three characteristics of coal need to be considered?
Anthracite – contains between 86% and 98% carbon by weight and it burns in boilers slowly. Bituminous – contains between 69% & 86% carbon by weight. Sub-bituminous – contains less carbon, more water and is a less efficient source of heat for boilers.