There is an upsurge enthusiasm for utilizing biochar produced from waste-biomass in different fields, to address the most important ecological issues. The common thermochemical techniques used for biochar production include pyrolysis, hydrothermal carbonization, gasification, flash carbonization and torrefaction. So, what are the benefits and drawbacks of Biochar preparation in oxygen-restricted condition instead of using inert atmospheric air?
Biochar is produced in an oxygen-restricted conditions for a number of reasons. The presence of atmospheric air causes oxidation of substrate and result in loss of carbon in form of CO2. Additionaly, it will result in combustion (different process) which will result in lower yields, higher ash and the emission of flue gases.
Panagiotis Kirmizakis
thank you for your quick reply and consideration.
