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A coal firing system that introduces the coal under the fire.

Related Terms

BULK CARGO

Cargo such as oil, coal, ore, woodchips, etc. not shipped in bags or containers

COLLIER

Vessel used for transporting coal.

GREAT LAKES SHIP

Cargo ship used to carry cargo on the Great Lakes. Most carry bulk cargoes of grain, iron ore or coal.

FUEL NOx

NOx that is formed from nitrogen that is organically bound to the fuel molecule. Fuel NOx is most often a problem with liquid fuel or coal burning. Once the nitrogen has been cracked from the fuel molecule, the mechanism follows basically the same path as the prompt NOx mechanism.

PARTICULATES

The residue left over from coal and fuel oil combustion.

COAL

A common boiler fuel comprised of hydrogen, oxygen, sulphur, nitrogen, moisture, and ash.

CYCLONE FURNACE

A type of furnace developed to burn lower grade coals, it is water cooled and insulated to maintain a high furnace temperature. Crushed coal enters with the primary air in the furnace tangentially, while the secondary air is supplied to the furnace chamber.

COKE

A high quality coal used as a fuel and source of carbon in the refining of metal.

PULVERIZED COAL

Coal that has been pulverized to a very fine consistency.

ACCEPTOR

A calcined carbonate used to absorb the carbon dioxide evolved during a coal gasification process.
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