Patent ID: 8549769
Filing Date: 2013-10-08
Classification: C10L,F26B,Y02E

Abstract:
1. An apparatus for the torrefaction of cellulose containing material, comprising: a material processing chamber adapted for torrefying water containing cellulose material passing therethrough; a plurality of material supports arranged within the chamber for receiving the cellulose material cascading downwardly through the chamber; an outlet in communication with the chamber for exiting exhaust gas from within the chamber; an inlet in communication with the chamber; a burner in communication with the exiting exhaust gas from the chamber for creating heated gas by combustion of at least a portion of the exiting exhaust gas; and a heat exchanger in communication with both the heated gas from the burner and the exiting exhaust gas from the processing chamber for heating at least a portion of the exiting exhaust gas for recycling to the chamber through the inlet.