What is high volatile bituminous coal?
Bituminous coals are black, shiny, and generally hard. They are a medium-rank coal. High volatile bituminous C coals have calorific values of 11,500 to 13,000 Btu/lb. High volatile bituminous B coals have calorific values of 13,000 to 14,000 Btu/lb.
Which coal has highest volatile?
The four ranks are: Anthracite: The highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter. Bituminous: Bituminous coal is a middle rank coal between subbituminous and anthracite.
Is high volatile matter in coal Good?
The most common volatile matter in coal is water, carbon dioxide, and sulfur dioxide. High-volatile matter may also be associated with spontaneous combustion, especially in low-rank coals (Fierro and others, 1999). Hence, knowledge of volatile matter is important for safety, handling, and transporting coal.
What is bituminous coal used for?
Smithing coal
Coking coalPower generation
Bituminous coal/Uses
What does bituminous coal mean?
bituminous coal, also called soft coal, the most abundant form of coal, intermediate in rank between subbituminous coal and anthracite according to the coal classification used in the United States and Canada. Bituminous coal is dark brown to black in colour and commonly banded, or layered.
What is the superior quality of coal called?
Anthracite
Complete answer: So, the superior quality coal is called Anthracite.
What is the importance of bituminous coal?
Bituminous coal is used for producing electricity and is a significant fuel and raw material for generating coking coal. It is also used as a raw agent in the iron and steel industry.
Which is best quality of coal?
Anthracite is the best quality of coal which carries 80 to 95 per cent carbon content. It ignites slowly with a blue flame. It has the highest calorific value.
Where is bituminous coal?
In the United States, Cretaceous bituminous coals occur in Wyoming, Colorado and New Mexico. In Canada, the Western Canada Sedimentary Basin of Alberta and British Columbia hosts major deposits of bituminous coal that formed in swamps along the western margin of the Western Interior Seaway.
Why is sub bituminous more expensive?
The higher cost of coal from underground mines reflects the more difficult mining conditions and the need for more miners. When coal is burned, it releases impurities that can combine with oxygen to form sulfur dioxide (SO2).
What are the different types of bituminous coal?
Within the broad classification of bituminous coal there are several sub-classifications based on volatile content and these are: Low volatile bituminous coal with < 22% volatiles on a dry, ash free basis; High volatile bituminous coal with volatile content of > 31%. Panagiotis Grammelis,
Which is the most volatile type of coal?
High volatile, type C coals are of distinct laminar structure, are hard and stand handling well. They generally have high moisture, ash, and sulfur content and they are considered free-burning coals. Bituminous coal and green coke (but not calcined coke) are subject to spontaneous heating that could lead to them catching fire.
What kind of coal is black and brittle?
It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter. Bituminous: Bituminous coal is a middle rank coal between subbituminous and anthracite.
Which is the highest rank of coal in the world?
Anthracite: The highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter. Bituminous: Bituminous coal is a middle rank coal between subbituminous and anthracite.