Your question: What is the average heat value of bituminous coal?

What is the heat value of coal?

Heat Values of Various Fuels

Heat value
Natural gas 42-55 MJ/kg
Hard black coal (IEA definition) >23.9 MJ/kg
Hard black coal (Australia & Canada) c. 25 MJ/kg
Sub-bituminous coal (IEA definition) 17.4-23.9 MJ/kg

What is the calorific value of sub bituminous coal?

Subbituminous coal contains 42 to 52 percent carbon (on a dry, ash-free basis) and has calorific values ranging from about 19 to 26 megajoules per kilogram (about 8,200 to 11,200 British thermal units per pound).

How long does coal burn vs Wood?

Being far denser than wood, coal burns more steadily and longer. Coal stoves may need attention only twice a day at most, and they may burn more than two days before they need to be resupplied, depending on the stove.

What is the benefit of burning anthracite versus bituminous coal?

Unlike bituminous coal, which produces a thick, black smoke and has a high sulphur content, anthracite has the highest carbon content of any coal and burns cleanly. Comparatively, anthracite is a more expensive solid fuel, but there is a marked performance increase when used as a domestic fuel.

What three states are the largest producers of bituminous coal?

Top five US states for coal production ranked and profiled

  • Wyoming: 304.2 million short tonnes. …
  • West Virginia: 95.4 million short tonnes. …
  • Pennsylvania: 49.9 million short tonnes. …
  • Illinois: 49.6 million short tonnes. …
  • Kentucky: 39.6 million short tonnes.
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What are the characteristics of bituminous coal?

Shenmu bituminous coal has the following properties: good thermal stability, high volatile matter and low ash, strong chemical activity, low phosphorus, low sulfur and high calorific value.

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.

Is coal still being formed?

Coal is very old. The formation of coal spans the geologic ages and is still being formed today, just very slowly. Below, a coal slab shows the footprints of a dinosaur (the footprints where made during the peat stage but were preserved during the coalification process).