METHOD OF DRYING BIOMASS

摘要

A process for torrefaction of biomass is provided in which biomass are passed into a fluidized bed reactor and heated to a predetermined temperature in an oxidizing environment. The dried biomass is then fed to a cooler where the temperature of the product is reduced to approximately 100 degrees Fahrenheit.

主权项

1. A process for drying a biomass, comprising:
directing said biomass to a fluidized bed reactor; heating said biomass in said fluidized bed reactor with a first heat source, which provides heat energy into said fluidized bed reactor, to a temperature sufficient to evaporate water and convert a portion of said biomass to vaporized organic compounds, such that a dry biomass is produced that contains less than about 10 wt % moisture; and further heating said biomass with said first heat source and with a second heat source that is associated with a combustion of said vaporized organic compounds, heat from said first heat source and said second heat source each intermingling to directly provide heat energy to said biomass.