Biological production of ethanol from coal

Technical Report · Sun Jan 01 00:00:00 EST 1989

DOI:https://doi.org/10.2172/5128187· OSTI ID:5128187

Two batch and one continuous reactor study involving Clostridium ljungdahlii were carried out. First, the effects of H{sub 2} partial pressure on growth, CO and H{sub 2} uptake and product formation by C. ljungdahlii were investigated in batch culture. Over the concentration range studied, it was observed that CO was preferentially utilized in favor of H{sub 2}. It was also seen that increasing H{sub 2} partial pressures increased the ratio of ethanol to acetate. Finally, a two-stage CSTR system was successfully operated with C. ljungdahlii in which growth occurred in the first stage and ethanol production occurred in the second stage.

• Research Organization: Arkansas Univ., Fayetteville, AR (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-89PC89876
• OSTI ID: 5128187
• Report Number(s): DOE/PC/89876-T7; PETC-2-1-90; ON: DE92016109
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
10 SYNTHETIC FUELS
59 BASIC BIOLOGICAL SCIENCES
COAL
BIOCONVERSION
ETHANOL
SYNTHESIS
SYNTHESIS GAS
ACETATES
ADDITIVES
BIOREACTORS
CHEMICAL REACTION KINETICS
CLOSTRIDIUM
PROGRESS REPORT
STIRRING
ALCOHOLS
BACTERIA
CARBONACEOUS MATERIALS
CARBOXYLIC ACID SALTS
DOCUMENT TYPES
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASES
HYDROXY COMPOUNDS
KINETICS
MATERIALS
MICROORGANISMS
ORGANIC COMPOUNDS
REACTION KINETICS
010408* - Coal
Lignite
& Peat- C1 Processes- (1987-)
100200 - Synthetic Fuels- Production- (1990-)
550700 - Microbiology