System and process for producing torrefied biomass using a mass flow reactor

摘要

A system and method are described for torrefaction of particulate biomass. The system comprises a reactor having mass flow characteristics, containing particulate biomass, and further is equipped with a heated gas input; a gas discharge output; a particulate solids inlet; and a particulate solids discharge.

主权项

1. A system for torrefaction of particulate biomass, comprising:
a mass flow reactor-configured as a vertically disposed cylindrical or rectangular vessel comprising an upper straight walled section that defines a reaction chamber and a lower tapered bottom section having an angle from vertical of less than 25°; a heated gas input that introduces heated gas around a perimeter of the reactor, the heated gas input positioned at a junction located between of the tapered bottom section and the upper straight-walled section; a gas discharge output; a particulate solids inlet; and a particulate solids discharge.