Patent ID: 8945348
Filing Date: 2015-02-03
Classification: C01B,C10B,Y02E

Abstract:
1. A process for manufacturing charcoal or/and activated carbon from a wood load, comprising the steps of: placing said wood load in at least one basket in a sealed device between a first upstream chamber and a second downstream chamber; generating first non-oxidizing hot fuel gases that do not comprise oxygen in gaseous form O introducing said first non-oxidizing hot fuel gases into a mixing chamber; mixing in said mixing chamber said first non-oxidizing hot fuel gases with second dilution gases, to form a mixture of non-oxidizing incoming gases that do not comprise oxygen in gaseous form O sending upstream into said wood load said mixture of non-oxidizing incoming gases to generate therein a pyrolysis front; creating an overpressure between the upstream end and the downstream end of said wood load to force said pyrolysis front to pass through in a single direction from the upstream end to the downstream end; recovering downstream of said load third exiting gases, at least a first portion of which being transported, directly into the mixing chamber and by transportation means, in the form of a flow of said second dilution gases to be mixed with said first hot fuel gases, and a second portion of which complementary to the first portion being discharged in the form of a flow of fourth service gases by a transportation means to an outlet orifice; said overpressure being a pressure above atmospheric pressure having a value between 10.10