Pressed charcoal glue and chemicals-free (skeletal)
Main features of this charcoal compared to the sample available in the market
A- No chemical binders: Chemical binders such as sodium silicate, resin, phenol, formaldehyde, gluten, cement, etc. are not used. These materials can cause cancer and acute health problems.
B- 100% carbonization process: The wood is burnt at the highest level, releasing carbon and phenol. The presence of phenol and ethylene in coal causes smoke and smell. It also causes side effects such as eye, ear, and throat irritation. Damage to the nervous system, weakness, fatigue, and muscle pain are other consequences. These pollutants in high amounts can cause liver and kidney damage, etc.
C- Preparation by cold static method
1. high speed and performance in production;
2. The product is healthier compared to other products in the market;
3. The product is environmentally safe due to the absence of chemical binders;
4. Specific product engineering and production in the form of automation for the first time in the world;
5. The product has a long life and high durability during burning, which has been proven by relying on existing analyses and tests;
6. Higher density of the product compared to similar samples in the market;
7. The product can be used for three times longer than other coals;
8. 100% preserved nature of the product;
9. Selection of raw materials according to the customer's needs with a special formula with the same output;
10. The carbonation process is 100% complete, which means that one kilo of coal is obtained from 5 kilos of raw material, and all toxic substances such as phenol and ethylene are removed. This makes our product healthier than the competitors, as confirmed by laboratory analysis;
11. 100% recycled.
Problems with conventional compressed charcoals in the market
1- The use of industrial adhesives can lead to the presence of unpleasant smells and smoke, causing headaches during use.
2- The use of industrial and chemical substances such as sodium silicate, resin, phenol, formaldehyde, gluten, etc., can cause cancer, respiratory problems, and heart problems.
3- Due to the use of industrial materials and glue in this method, when coal ignites, it emits volatile chemicals that can lead to headaches and other health issues.
Production method
This type of charcoal is produced using the sculpting method, where it is poured into a silicone mold as a slurry. The mold cannot be reused until the charcoal has completely dried, which results in a slow production rate and high costs due to the use of glue and chemicals.
Technical points
The pistachio skin was tested for its components in order to determine its potential as a fuel source. The test conducted was FTIR, which revealed the presence of hydrocarbons and phenols. However, phenols are harmful to health and can cause headaches, dizziness, and a putrid smell when burned. The TG and DTG tests further indicated that hydrocarbons burn at temperatures between 275 and 354 degrees, whereas harmful phenol compounds are released after that. To remove phenols from pistachio charcoal, we burn pistachio skins at high temperatures for longer periods. This causes the release of hydrocarbons and the reduction of the thermal power of the product, but there are no more phenols and harmful compounds in it. We obtain one kilo of quality charcoal from every 4 to 5 kilos of pistachio shells, due to the high temperature and time required for the charcoal preparation process. The percentage of ash left after complete combustion is around 17% of the weight of the initial raw pistachio shell, as shown in the figure. If we carbonize pistachio shells at lower temperatures and for shorter periods, we will obtain one kilo of coal from every 2 to 3 kilos of pistachio shells. While the thermal power of the resulting coal will be higher and the remaining ash will be less compared to the weight of the coal, the most important parameter, quality, will be sacrificed.