Charcoal properties need to be upgraded for use as a substitute for top furnace coke.

Only the pyrolysis heating rate significant affected charcoal mechanical properties.

ong class="boldFont">Eucalyptus Camaldulensisong> and ong class="boldFont">Urophyllaong> wood always produced hardly friable charcoal.

Increasing pressure increased charcoal yield.

Charcoal reactivity more sensitive to temperature than to heating rate and pressure