PROCESS FOR PREPARING TORREFIED BIOMASS MATERIAL USING A COMBUSTIBLE LIQUID

摘要

A process for preparing torrefied densified biomass and/or torrefied densified biosolids comprising about 2% to about 25% w/w combustible liquid is disclosed. The process involves densifying biomass and/or biosolids, or providing a densified biomass and/or densified biosolids, and submerging the densified material in a hot combustible liquid for about 2 to about 120 minutes until the densified material is torrefied. The combustible liquid may be derived from any source exemplified by an oil such as those derived from plant, marine and animal sources, or alternatively, a petroleum product. The combustible liquid is heated to a temperature in the range of about 160° C to about 320° C prior to submersion of the densified biomass material. Also disclosed is a torrefied densified biomass and/or torrefied densified biosolid comprising about 2% to about 25% w/w combustible liquid.