How to carbonize grain hulls

Carbonized hulls can be obtained when the hulls are burned in the absence of sufficient oxygen, or when they are not completely burned, and then quickly cooled to stop burning, or dehydrated and carbonized at high temperatures.

Methods:

1, soil method, with other burning material will be ignited, when the hulls burned into a fire red when the spade will be shoveled to the side of the spread, after cooling will be black carbonized hulls of carbon, this product can be used to improve the soil, and have a certain degree of fertilizer;

2, due to the industrial use, there are now a special hulls of carbonized equipment in the absence of sufficient air and The hulls are heated to 300 to 700 degrees for carbonization.