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Charcoal of the future | Pyrolysis of pini-kay briquette

 “Pillow” formed briquette is widespread in EU countries as well as in the North and South America. It gained its popularity do to its properties:

  1. High density that influences duration of burning
  2. Similar fraction – even heat distribution
  3. High mechanical strength – minimal quantity of siftings by physical influence (transportation, loading works etc.)

 “Pillow” formed briquette

 “Pillow” formed briquette 

Despite these positive properties of BBQ briquette, there is a range of shortcomings, which are not seen by the average man, namely: high content of ash (up to 20%), low content of carbon (less than 70%), in compliance with GOST 7657-84(94). Charcoal is of B mark, which is of the lowest grade. Low content of carbon influences the quantity of volatile matters, high content of which causes flame appearance during the burning and partial burn-out of carbon, that significantly decreases period of burning in the industry, where the carbon content is of key importance.

The main point of the above listed shortcomings consists of materials used for its production, which are:

  • Charcoal dust (small fraction of charcoal or low grade crushed charcoal) is the reason of low content of carbon, high content of volatile matters.
  • Binding material (starch or others), amount of volatile matters increases during the process of burning.
  • “Parasite” material (sand etc.). It is used in order to increase the nominal weight of the produced briquette.  In fact the buyer pays the cost of charcoal for the “sand”.

Why does the “average man” like charcoal briquettes more than usual charcoal? Because people don’t see good charcoal, there is only 5% of charcoal in the world is obtained technologically by means of industrial equipment, the rest 95% produced by traditional methods without adherence to the main requirements of wood drying and pyrolysis.

From the above-listed one can conclude that perfect charcoal should possess the next characteristics:
A.    High density
B.    Resistance to mechanical effect
C.    Homogeneous fraction content
D.    High content of nonvolatile carbon (not less than 85%)
E.    Low ash content
F.    High carbon content

Nowadays it is impossible to produce from wood growing in the most regions of the world. Thus, “perfect” and approximate charcoal can be made from black, red and iron wood also far eastern oak, coconut, mango and other exotic trees of high density.

Is it possible to produce charcoal from usual wood – birch, poplar etc. that would correspond to the characteristics of the exotic species? Yes, it is. Even from straw or sunflower husks. It can be achieved by means of artificial changing of raw material density used for pyrolysis.
It is feasible today. Many faced the next product. This is a fuel briquette “Pini kay”. Today it is used everywhere. There are different materials and methods of its production. But its properties are practically always the same:

  • Caloricity – 4400-4800 kcal/kg
  • Ash content –  up to 4%
  • Moisture – up to 8%
  • Density 1,1 – 1,3

Pini-Kay briquettes

Briquette Pini-Kay

According to its characteristics, this artificially formed product is an ideal raw material for charcoal production. Briquette Pini Kay is ideal material for pyrolysis by means of modern technology giving us the perfect charcoal. Why is it necessary?

Charcoal from Pini-Kay briquettes

Charcoal from pini kay briquette

The qualities listed above significantly reduce the charcoal consumption, as well as provide an opportunity to get better products using such charcoal.

Besides the modern methods of charcoal production permit:

  • Exclude harmful emissions
  • Increase the percentage charcoal yield from 1 ton of raw material
  • Reduce the quantity of waste wood industry
  • Reduce the cutting of valuable species of trees for charcoal production.
  • Receive heat or power energy by pyrolysis gas processing.

CK "EURO" series charcoal kilns are  the most suitable for the processing of «Pini kay» briquette into charcoal, because:

  • The number of drop-outs does not exceed 1 %
  • The briquette structure is maximum preserved
  • The charcoal yield is 35-38 % of the dry weight
  • The loading and unloading process is maximum convenient
  • The heat excess can be used for different purposes
  • Performance of the kiln reaches 40 tons of charcoal per month.

Indexes of charcoal from fuel briquettes listed above allow us to assert that we can get from an "ordinary" wood a "perfect charcoal". Duration of burning of such charcoal burning is more than 5 hours, comparing with charcoal made from birch wood burns up to 3 hours, and from ironwood to 4 hours.

Nowadays, pyrolysis of Pini Kay briquette for charcoal production is a promising sector of processing industry. Thus such charcoal is better than charcoal produced from fuel wood. Charcoal has a wider application than the fuel briquette. Besides, the cost of the produced charcoal would be higher than usual and several times higher than the cost of fuel briquette.

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GreenPower 

piroliz@greenpower.com.ua