Materials from solid waste derived chars were activated at different temperature and activation times to explore the influence of these parameters on the
Materials from solid waste derived chars were activated
at different temperatures and activation times to explore the
influence of these parameters on the development of the
surface area. It was possible to derive the influence of material
and activation conditions on the final carbon surface
area and the process was optimised to enhance the surface
area development. Appropriate temperatures and soaking
time maximised the porosity. However, the type of raw
material restricted the activation conditions. Tyre crumb
required higher temperatures, but was too reactive to
allow lengthy soaking times as the development of macropores
caused high mass loss. The development of activated
carbon from materials pyrolysed using the flaming pyrolyser
was shown to be practicable. The best case of wood furniture
waste derived char developed a surface area (855 m2/g),
which was 60% of that of commercially produced activated
carbons. The activation of tyre derived chars yielded an