Biological production of ethanol from coal. Task 4 report, Continuous reactor studies
The production of ethanol from synthesis gas by the anaerobic bacterium C. ljungdahlii has been demonstrated in continuous stirred tank reactors (CSTRs), CSTRs with cell recycle and trickle bed reactors. Various liquid media were utilized in these studies including basal medium, basal media with 1/2 B-vitamins and no yeast extract and a medium specifically designed for the growth of C. ljungdahlii in the CSTR. Ethanol production was successful in each of the three reactor types, although trickle bed operation with C. ljungdahlii was not as good as with the stirred tank reactors. Operation in the CSTR with cell recycle was particularly promising, producing 47 g/L ethanol with only minor concentrations of the by-product acetate.
- Research Organization:
- Arkansas Univ., Fayetteville, AR (United States). Dept. of Chemical Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-89PC89876
- OSTI ID:
- 10130137
- Report Number(s):
- DOE/PC/89876-T17; ON: DE93008947
- Resource Relation:
- Other Information: PBD: Oct 1992
- Country of Publication:
- United States
- Language:
- English
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Biological production of ethanol from coal
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