A biomass solid fuel manufacturing method, including: a heating step of carbonizing a biomass molded body formed by molding raw material biomass, in an external heating type rotary kiln, in which the rotary kiln includes a non-heating zone that is provided on an upstream side of a kiln body and is not provided with a heating unit on an outer circumference, the non-heating zone includes a spiral blade on an inner circumferential surface, and in the heating step, the biomass molded body is introduced to the non-heating zone of the kiln body.

A biomass solid fuel manufacturing method, including: a heating step of carbonizing a biomass molded body formed by molding raw material biomass, in an external heating type rotary kiln, in which the rotary kiln includes a non-heating zone that is provided on an upstream side of a kiln body and is not provided with a heating unit on an outer circumference, the non-heating zone includes a spiral blade on an inner circumferential surface, and in the heating step, the biomass molded body is introduced to the non-heating zone of the kiln body.

A biomass solid fuel manufacturing method, including: a heating step of carbonizing a biomass molded body formed by molding raw material biomass, in an external heating type rotary kiln, in which the rotary kiln includes a non-heating zone that is provided on an upstream side of a kiln body and is not provided with a heating unit on an outer circumference, the non-heating zone includes a spiral blade on an inner circumferential surface, and in the heating step, the biomass molded body is introduced to the non-heating zone of the kiln body.

A biomass solid fuel manufacturing method, including: a heating step of carbonizing a biomass molded body formed by molding raw material biomass, in an external heating type rotary kiln, in which the rotary kiln includes a non-heating zone that is provided on an upstream side of a kiln body and is not provided with a heating unit on an outer circumference, the non-heating zone includes a spiral blade on an inner circumferential surface, and in the heating step, the biomass molded body is introduced to the non-heating zone of the kiln body.

The invention relates to a biofuel, particularly an advanced solid biofuel, comprising waste coffee grounds.

The invention relates to a biofuel, particularly an advanced solid biofuel, comprising waste coffee grounds.

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.

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.

Methods and systems for forming densified lignocellulose biomass are described. Methods can include torrefaction and densification of a lignocellulose feedstock. Temperature and pressure control and lubricant addition throughout the process can provide for the lignin to dissipate more completely throughout the biomass and better coat the cellulose. The product can include a high level of lignin and low volatiles, both of which can improve the energy density of the product. In addition, the process can include a cooling step that can increase the crystallinity of the solidified lignin, which can further increase bulk density and improve grindability of the product.

Methods and systems for forming densified lignocellulose biomass are described. Methods can include torrefaction and densification of a lignocellulose feedstock. Temperature and pressure control and lubricant addition throughout the process can provide for the lignin to dissipate more completely throughout the biomass and better coat the cellulose. The product can include a high level of lignin and low volatiles, both of which can improve the energy density of the product. In addition, the process can include a cooling step that can increase the crystallinity of the solidified lignin, which can further increase bulk density and improve grindability of the product.