is bituminous is a good quality of coal
Answers
Answer:
Explanation:
It is of higher quality than lignite coal but of poorer quality than anthracite. Coal that has been buried deep and subjected to increased temperatures is called bituminous coal.
It is the most popular coal in commercial use. Metallurgical coal is high grade
bituminous coal which has a special value for smelting iron in blast furnaces.
Answer:
Bituminous coal or black coal is a relatively soft coal containing a tarlike substance called bitumen or asphalt. It is of higher quality than lignite and Sub-bituminous coal, but of poorer quality than anthracite. Formation is usually the result of high pressure being exerted on lignite. Its coloration can be black or sometimes dark brown; often there are well-defined bands of bright and dull material within the seams. These distinctive sequences, which are classified according to either "dull, bright-banded" or "bright, dull-banded", is how bituminous coals are stratigraphically identified.
Bituminous coal is an organic sedimentary rock formed by diagenetic and sub metamorphic compression of peat bog material. Its primary constituents are macerals: vitrinite, and liptinite. The carbon content of bituminous coal is around 45–86%;[1] the rest is composed of water, air, hydrogen, and sulfur, which have not been driven off from the macerals. Bank density is approximately 1,346 kilograms per cubic metre (84.0 lb/cu ft). Bulk density typically runs to 833 kilograms per cubic metre (52.0 lb/cu ft). The heat content of bituminous coal ranges from 24 to 35 megajoules per kilogram (21 to 30 million British thermal units per short ton) on a moist, mineral-matter-free basis.
Within the coal mining industry, this type of coal is known for releasing the largest amounts of firedamp, a dangerous mixture of gases that can cause underground explosions. Extraction of bituminous coal demands the highest safety procedures involving attentive gas monitoring, good ventilation and vigilant site management.