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US 12,595,340 B1Granted
Ammonia treatment of densifiable cellulosic biomass feedstock
AssigneePermanente Corporation
InventorsMarc Allen Seidner, Daniel Jakob Seidner
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Abstract
In on example, a method of plasticizing at least a portion of lignin within a lignocellulosic biomass by mixing the biomass with anhydrous ammonia at a sub-ambient temperature and continuously conveying the mixture of lignocellulosic biomass and anhydrous ammonia through a reactor. At least a portion of the anhydrous ammonia is removed from the mixture. The lignocellulosic biomass having plasticized lignin is molded into a repeated shape.
Claims22
A method comprising:
- plasticizing at least a portion of lignin within a lignocellulosic biomass by mixing the biomass with anhydrous ammonia at a sub-ambient temperature and continuously conveying the mixture of lignocellulosic biomass and ammonia through a reactor;
- removing at least a portion of the ammonia from the mixture;
- molding the lignocellulosic biomass having plasticized lignin into a repeated shape;
- and
- increasing a fixed carbon fraction of the molded lignocellulosic biomass by subjecting the biomass to thermal treatment at a temperature between 350° C. and 850° C.
2 more elements
Dependencies are inferred from the claim text.