ABSTRACT
This chapter provides the different technologies that can be used for production of biochar from a variety of feedstock. The main technologies include: mechanical dewatering, thermal drying and microwave drying. Feedstock uniformity is particularly important as it allows us to consistently produce biochar with prescribed properties. The challenges in biomass feeding are mainly related to how well biomass flows from storage through the feeding system and into the pyrolysis reactor. Pyrolysis is a process of thermal decomposition of carbonaceous organic materials in the complete or nearly complete absence of oxygen. With carbon conversion levels in most commercial biomass gasification systems in the order of 9499 per cent, there is only a relatively small yield of co-products. Hydrothermal carbonisation (HTC) is a thermal treatment process that was discovered in the early twentieth century by Bergius during research on coal formation mechanisms.
