How Biochar is Made

There are many different ways to produce biochar.  All of them involve heating organic matter in the absence of oxygen, driving off volatile gasses and leaving carbon behind.  This process is called thermal decomposition, and it can be achieved through three main methodologies: pyrolysis, gasification and hydrothermal carbonization.  All of these methods produce energy in the form of syngas or bio-oil along with the biochar.  This energy may be recoverable for another use, or it may simply be burned and released as heat.

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