Methods for conversion of a glycol reaction product obtained from hydrothermal digestion of cellulosic biomass solids into a dried monohydric alcohol feed

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United States of America Patent

PATENT NO 9181158
APP PUB NO 20140128639A1
SERIAL NO

14067399

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Abstract

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Hydrothermal digestion of cellulosic biomass solids may produce a glycol reaction product for subsequent processing. Methods for digesting cellulosic biomass solids to form and process a glycol reaction product may comprise: providing cellulosic biomass solids and a slurry catalyst in a hydrothermal digestion unit, the slurry catalyst being capable of activating molecular hydrogen; heating the cellulosic biomass solids in the hydrothermal digestion unit in the presence of the slurry catalyst, a digestion solvent, and molecular hydrogen, thereby forming a liquor phase comprising soluble carbohydrates; performing a first catalytic reduction reaction on the soluble carbohydrates within the hydrothermal digestion unit, thereby at least partially converting the soluble carbohydrates into a reaction product comprising a glycol; at least partially drying the reaction product, thereby forming a dried reaction product comprising a dried glycol; and at least partially converting the dried glycol into a monohydric alcohol external to the hydrothermal digestion unit.

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Patent Owner(s)

  • SHELL OIL COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Johnson, Kimberly Ann Richmond, US 31 330
Powell, Joseph Broun Houston, US 149 1399

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