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.
How do you identify bituminous coal?
Bituminous coal is dark brown to black in colour and commonly banded, or layered. Microscopically, three main groups of macerals (individual organic constituents of coal) can be recognized: vitrinite, liptinite, and inertinite.
What is the texture of bituminous coal?
Bituminous coal could be considered a clastic sedimentary rock but the texture is more often called organic. It is unusual because, instead of rock fragments of quartz, the sediments are bits and pieces of wood and other plant parts, organic matter. This material accumulated in stagnant water.
What are 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.
What are the 5 main types of coal?
|Coal||Dry, Carbon content (%)||Dry, volatile content (%)|
What are the characteristics of good quality of coal?
Good burning characteristics – Complete combustion without agitation. Good grindability – sometimes it is needed to grind coal before burning. Good coal should not cause high abrasion on the machine. High ash softening temperature – High Ash softening temperature lower the risk of slagging.