Patent ID: 8304590
Filing Date: 2012-11-06
Classification: C10B,C10L,F26B,Y02E

Abstract:
1. An autothermal torrefaction device, comprising: (a) at least one torrefaction chamber, each chamber including a chamber inlet for receiving biomass and at least one chamber outlet; (b) an exterior housing defining an outer jacket substantially surrounding the at least one torrefaction chamber and including a jacket inlet and a jacket outlet, the outer jacket and the at least one torrefaction chamber define a space therebetween; and (c) a burner unit including an inlet operatively connected to the torrefaction chamber outlet and an outlet operatively connected to the jacket inlet; such that all vapors, including any steam and combustible gases derived from the biomass from within the at least one torrefaction chamber, travel directly into the burner unit for immediate combustion of all combustible gases derived from the biomass and subsequently travel through the space between the jacket and the at least one torrefaction chamber to provide heat necessary for autothermal torrefaction of biomass.