High-temperature dilute-acid hydrolysis of waste cellulose: batch and continuous processes. Final report, 25 June 1977-31 March 1981
The 5-year investigation on the dilute acid hydrolysis of waste cellulose to glucose has emphasized the crucial step of continuously converting cellulose to glucose. Initial batch studies emphasized pretreatments to improve accessibility of the cellulose, and established suitable reaction conditions. Later a 1-ton/day pilot plant was designed and constructed based on the application of a Werner and Pfleiderer Twin Screw Extruder Reactor to demonstrate this approach. The process was tested using paper pulp (at 10% solids) and dry hardwood sawdust (at 95% solids). Attractive energy efficiencies and high conversion yields resulted. Up to 60% glucose conversion was achieved, based on the available cellulose values without pretreatment. The report presents a scheme for a continuous, production-scale acid hydrolysis-fermentation facility based on a waste cellulose feedstock for production of fuel-grade ethanol.
- Research Organization:
- New York Univ., NY (USA). Dept. of Applied Science
- OSTI ID:
- 6081336
- Report Number(s):
- PB-86-143484/XAB; NYU/DAS-80-21/B
- Country of Publication:
- United States
- Language:
- English
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ACID HYDROLYSIS
ALCOHOL FUELS
ALDEHYDES
BIOCONVERSION
CARBOHYDRATES
CELLULOSE
CHEMICAL REACTIONS
DECOMPOSITION
ETHANOL FUELS
FERMENTATION
FUELS
GLUCOSE
HEXOSES
HYDROLYSIS
INDUSTRY
LYSIS
MONOSACCHARIDES
ORGANIC COMPOUNDS
PAPER INDUSTRY
POLYSACCHARIDES
PRODUCTION
SACCHARIDES
SOLVOLYSIS
SYNTHETIC FUELS
WOOD PRODUCTS INDUSTRY