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METHODS FOR HYDROTHERMAL DIGESTION OF CELLULOSIC BIOMASS SOLIDS IN THE PRESENCE OF A SLURRY CATALYST AND A DIGESTIBLE FILTER AID
METHODS FOR HYDROTHERMAL DIGESTION OF CELLULOSIC BIOMASS SOLIDS IN THE PRESENCE OF A SLURRY CATALYST AND A DIGESTIBLE FILTER AID
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机译:存在淤浆催化剂和可消化助滤剂的纤维素生物质水热消化方法
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摘要
Digesting cellulosic biomass in the presence of a slurry catalyst may reduce degradation product formation, but catalyst distribution and retention can be problematic. Digestion methods can comprise: providing cellulosic biomass solids and a slurry catalyst capable of activating molecular hydrogen in a digestion unit; providing a digestible filter aid in the digestion unit; distributing the slurry catalyst within the cellulosic biomass solids using fluid flow; retaining at least a portion of the slurry catalyst in a fixed location using the digestible filter aid; heating the cellulosic biomass solids in the presence of the slurry catalyst, a digestion solvent, and molecular hydrogen, thereby forming a liquor phase comprising soluble carbohydrates; and performing a catalytic reduction reaction on the soluble carbohydrates within the digestion unit, thereby at least partially forming a reaction product comprising a triol, a diol, a monohydric alcohol, or any combination thereof in the digestion unit.
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