In some variations, a process for preparing a biomass feedstock for conversion to a sugar, a biofuel, a biochemical, or a biomaterial, comprises: providing a biomass feedstock containing cellulose, hemicellulose, and lignin; optionally, introducing the biomass feedstock and a first vapor stream to a biomass-heating unit, thereby generating a heated biomass stream; introducing the biomass feedstock and a first liquid stream to a liquid-addition unit, thereby generating a wet biomass stream, wherein the first liquid stream contains a pretreatment chemical; introducing the wet biomass stream to a mechanical conveyor operated to physically remove liquid from the wet biomass stream, thereby generating an excess-liquid stream comprising the pretreatment chemical and a solid discharge stream comprising the biomass feedstock and the pretreatment chemical; recycling at least a portion of the excess-liquid stream to the first liquid stream; and recovering or further processing the solid discharge stream. Many variations are disclosed.

» Number: CA3192668A1 (A1)

» Publication Date: 21/04/2022

» Applicant: GRANBIO INTELLECTUAL PROPERTY HOLDINGS LLC?[US]

» Inventor: ZEBROSKI RYAN?[US]

» More Information

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