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Characteristics of charcoal

Our company offers the supply of several types of charcoal from top quality birch. Below you can see coal burning and cooking kebabs on it:

Characteristics of charcoal

Below you can find the results of the analysis of the small fraction of our charcoal obtained from our partner from Poland. (Humidity — Moisture; CFIX — content of solid carbon; The Volatiles — Volatiles; Ash — Ash)

Before 2016:

          
         

 

2016:
photos of analyzes.

      

 

Average results:
solid carbon Content Humidity Ash Content Volatiles
77,23% 13,28% 8,27% 14,43%

 

2017:
photos of analyzes.

         

 

Average results:
solid carbon Content Humidity Ash Content Volatiles
80,37% 13,43% 5,1% 14,53%

 

 

2018 год:
photos of analyzes.

 

         

 

Average results:
solid carbon Content Humidity Ash Content Volatiles
80,35% 12,73% 5,04% 14,62%

 

2) The composition of charcoal depends mainly on the temperature and time of pyrolysis: with increasing temperature, the content of solid carbon increases, the content of oxygen, nitrogen and hydrogen decreases, and with increasing duration of exposure, more volatile substances “come out”.

 

Charcoal is very porous. Porosity is included in the list of properties that have been described above: for example, birch coal is equal to 72%, and spruce – 80 %. Also depends on the type of wood and the density of charcoal: 1 m^3 bulk dry spruce coal weighs about 100 kg, the same amount of birch charcoal weighs about 180 kg, and beech-about 195 kg.

There is also a very interesting variety of charcoal called white. White coal is charred at a low temperature and only at the end of it is sharply increased to 1000°C. Hot pieces are removed from the flame and poured with a mixture of sand, ash and earth to cool. It is this mixture that makes the surface of the resulting charcoal white. The bark of the white coal is not, it is burned in the charring process. While black coal is usually the bark is preserved. The surface of the white coal is flat and hard. This method of production leads to a very high carbon content (90-95%). In Japan create white coal from stone or iron oak. Such coal is very hard and burns for a long time, so it is considered the best, however, the cost of production is too high for its wide distribution as fuel.

   


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