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Ethanol production from agricultural cellulosic feedstocks

Conference ·
OSTI ID:6076519
; ; ; ;

A two-stage acid hydrolysis process for the production of ethanol from corn stover is described. The process uses concentrated sulfuric acid and the following steps: grinding, hemicellulose hydrolysis, concentrated acid prehydrolysis treatment, acid concentration by drying, cellulose hydrolysis, and lignin and sugar separation and recovery. Acid recycle is employed to reduce acid consumption. A mixed sugar product with concentrations over 20% can be produced.

OSTI ID:
6076519
Report Number(s):
CONF-8406307-
Country of Publication:
United States
Language:
English

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Related Subjects

09 BIOMASS FUELS
090222* -- Alcohol Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ACID HYDROLYSIS
AGRICULTURAL WASTES
ALCOHOLS
BIOSYNTHESIS
CARBOHYDRATES
CELLULOSE
CEREALS
CHEMICAL REACTIONS
COMMINUTION
DECOMPOSITION
DISACCHARIDES
DRYING
ETHANOL
GRASS
GRINDING
HEMICELLULOSE
HYDROGEN COMPOUNDS
HYDROLYSIS
HYDROXY COMPOUNDS
INORGANIC ACIDS
LIGNIN
LYSIS
MACHINING
MAIZE
OLIGOSACCHARIDES
ORGANIC COMPOUNDS
ORGANIC WASTES
PLANTS
POLYSACCHARIDES
QUANTITY RATIO
RECYCLING
SACCHARIDES
SACCHAROSE
SOLVOLYSIS
SULFURIC ACID
SYNTHESIS
WASTES