Pelletized carbonized biomass, methods, and apparatuses

摘要

Pelletized carbonized biomass-based fuel products, methods, and apparatuses are provided. Methods include applying a binder and a first amount of water to at least partially carbonized biomass, applying a second amount of water to the at least partially carbonized biomass, and pelletizing the at least partially carbonized biomass in an inert atmosphere. Apparatuses include a feeder of at least partially carbonized biomass, a binder source and a first water source configured to provide a binder and water to the at least partially carbonized biomass, a second water source downstream of the binder and first water sources, a pelletizer configured to receive and pelletize the at least partially carbonized biomass, and an inert gas source configured to provide inert gas to the pelletizer.

主权项

1. A method for producing a pelletized fuel product, comprising:
applying a first amount of water to at least partially carbonized biomass, the first amount of water being effective to give the at least partially carbonized biomass a moisture content of about 20 percent to about 40 percent by weight; applying a second amount of water to the at least partially carbonized biomass after applying the first amount of water, the second amount of water being effective to bring a moisture content of the at least partially carbonized biomass to about 40 percent to about 60 percent by weight; and thereafter pelletizing the at least partially carbonized biomass in an inert atmosphere, wherein the inert atmosphere comprises steam produced from evaporation of the first amount of water and/or the second amount of water.