There are many factors determine the quality of coal produced by any method of production and these factors are

the quality of wood used

Where the type of wood of great importance to quality and since time immemorial known Egyptian farmers this information example, in the Egypt and the Arab countries prefer coal output of the wood of citrus trees such as trees, oranges, guavas, mangoes, olives are the best species for the production of coal well and this is due to components Alsellioz the main component of wood and the varying rates of absorption of the components of soil

the percentage of carbon

And temperature are of great importance in high quality coal product and the higher the temperature of 400 ° C I said the quality of coal output in low carbon is the main ingredient of coal quality

percentage of moisture in coal

It is also to the quality of coal, the more I Madt humidity quality

the amount of ash and color

Determined and also the main component of wood used and the amount of salts and components that permeate the cellulose

The volume of coal

Resulting from the coal industry and circulation and a shift from one place to another result in breaking a significant proportion of coal, which is not fit for use scale on the right are also important

.