Peat coal, lignite coal, Sub-Bituminous coal, Bituminous coal, Semi-Bituminous coal, Semi-Anthracite coal, Anthracite coal and Super Anthracite coal are the different types of coal.
Peat Coal:
Peat coal contains high moisture and a small percentage of volatile matter and % of Carbon. It is Wet used in power plant. It has very less heating value of 2393 KJ/Kg.
Lignite Coal:
- Lignite coal has fixed carbon moisture content 30 to 45%.
- Proper storage is required to spontaneous combustion.
- Used in power plants locally. It can not be transported.
- woody clay like appearances. Heating value is 13800 to 17585 KJ/Kg.
Sub Bituminous coal
- Sub Bituminous coal can be stored carefully.
- There is no woody structure.
- It is called black ignite.
- Moisture content 17 to 20%.
- volatile matter 35 to 45%.
- Heating value 18840 t0 23000 KJ/Kg.
Bituminous coal:
- Bituminous coal has Low moisture percentage.
- Low or high Ash percentage
- It can be a caking, cooking or free burning coal.
- Heating value s 23,000 to 34750 KJ/Kg.
Semi-Bituminous coal:
- Semi-bituminous coal has high fixed carbon
- Volatile matter 14% to 22%.
- Heating value 33,500 to 34,750 KJ/Kg.
Semi Anthracite Coal:
- Semi anthracite coal is harder than Bituminous coal
- Heating value 33,500 to 34,750 KJ/Kg.
- Costly for power generation.
Anthracite coal:
- Purest form
- High carbon content.
- Less heating value
- Less ash
- Scars
- Less calorific value.
Super Anthracite coal:
- Heat coal, with shining black surface
- A high percentage of Carbon.
- Very difficult to ignite.
All Comments
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