Two-stage acid hydrolysis of biomass
- Phillips Petroleum Co., Bartlesville, OK
Biological conversion of biomass into fuels and chemicals requires hydrolysis of the polysaccharide fraction into monomeric sugars. This hydrolysis can be accomplished enzymatically or with mineral acids. A two-step dilute and concentrated acid hydrolysis process has been developed that utilizes mild conditions and nominal quantities of acid. The use of two stages minimizes the decomposition of pentoses while allowing the high yields possible from use of concentrated acid. This process is described and the design and economics presented for conversion of corn stover. Acid recycle in the prehydrolysis step results in a 250% increase in the sugar concentration. The use of acid recycle would reduce the investment and operating cost for this process by about 20%.
- OSTI ID:
- 5249946
- Report Number(s):
- CONF-810554-
- Journal Information:
- Biotechnol. Bioeng. Symp.; (United States), Vol. 11; Conference: 3. symposium on biotechnology in energy production and conservation, Gatlinburg, TN, USA, 12 May 1981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BIOMASS
ACID HYDROLYSIS
AGRICULTURAL WASTES
DECOMPOSITION
MAIZE
OPERATING COST
PENTOSES
SACCHARIDES
CARBOHYDRATES
CEREALS
CHEMICAL REACTIONS
COST
ENERGY SOURCES
GRAMINEAE
GRASS
HYDROLYSIS
LYSIS
MONOSACCHARIDES
ORGANIC COMPOUNDS
ORGANIC WASTES
PLANTS
RENEWABLE ENERGY SOURCES
SOLVOLYSIS
WASTES
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