Saturday 19 August 2017

Charcoal

 
[CHARCOAL] 
Charcoal is usually produced by slow Pyrolysis. The heating of wood or other substance in the absence of Oxygen. The production of wood charcoal in locations where there is an abundance of wood dates back to a very ancient period, and generally consists of clumping billets of wood on their ends so as to form a conical pile, openings being left at the bottom to admit oxygen, with a central shaft to serve as a Fuel. 
The whole clump is covered with turf, mud or moistened clay. The firing is begun at the bottom of the flue, and gradually spreads outwards and upwards. The success of the operation depends upon the rate of the combustion. Under average conditions, 100 parts of wood yield about 60 parts by volume, or 25 parts by gross weight. 
USES 
It's not just about cooking on a grill. Charcoal is a famously prized substance when it comes to food and drink. Grilling aficionados swear by it, and its purifying properties make it the main ingredient in Brita filters and other water purifier. 
Powdered charcoal is also a cooking ingredient. Yes, that's right: it can actually go in your food—and the results are delightful. Some even say that because of charcoal's ability to absorb organic toxins, it might even make your food better for you. However, what is undeniable is that many Endoplasmic Reticulum's keep it on hand to deal with poisoning cases. 
    Charcoal has been used since earliest times for a large range of purposes including art and medicine, but by far its most important use has been as a metallurgical fuel. Charcoal is the traditional fuel of a blacksmith's forge and other applications where an intense heat is required. Charcoal was also used historically as a source of black pigment by grinding it up. In this form charcoal was important to early chemists and was a constituent of formulas for mixtures such as black powder. Due to its high surface area charcoal can be used as a filter, and as a catalyst or as an adsorbent 


Combusting-process of burning, 
Abundancelarge quantity 

Pyrolysis -Thermochemical decomposition of organic material at elevated temperatures in the absence of oxygen