AFRICAN BOXTHORN BIOCHAR
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The Northern Agricultural Catchments Council (NACC) approached Energy Farmers Australia (EFA) to trial the pyrolysis of African Boxthorn as a means to finding an alternative use for this plant once removed from the local environment.
Pyrolysis is the thermal conversion of organic material at high temperatures in the absence of oxygen. There are two types of pyrolysis processes, fast pyrolysis which produces a liquid and slow pyrolysis which produces a gas. Both processes produce a high carbon, charcoal like substance called biochar. The EFA system uses slow pyrolysis.
The aim of the trial was to look at the ease in which African Boxthorn, once removed from infected areas could be pyrolised into biochar. This trial focused on materials handling and pyrolysis of the African Boxthorn plant.