Continuous alcohol fermentation in an immobilized cell rotating disk reactor
The increasing interest in alcohol fermentation over these last years because of the energy crisis has been demonstrated by an increase in scientific research. After a brief analysis of the main results of the literature in the field of alcohol fermentation reactors, the use of a new type of immobilized cell reactor (the rotating biological surface (RBS) reactor) was studied. As is well known, the RBS reactor is a form of fixed-film reactor and can be described as a dynamic trickling filter. The experimental apparatus employed a spongy material to trap the yeast cells on the disks. The results of fermentations carried out in the RBS reactor working in batch, in continuous with cell support, and in continuous without cell support have been presented in order to compare the different productivities and to assess the performance of the RBS immobilized cell reactor. An ethanol productivity of 7.1 g/L h was achieved in the RBS-ICR at a dilution rate of 0.3 h/sup -1/, 2.5 times higher than the maximum productivity obtained in the RBS reactor without support at a lower dilution rate. The adoption of a spongy material as a cell immobilizer, combined with the use of the RBS reactor, enhances the particular advantages of both systems.
- Research Organization:
- Ingegneria dell'Universita di Genova, Italy
- OSTI ID:
- 5659283
- Journal Information:
- Biotechnol. Bioeng.; (United States), Vol. 27:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BIOREACTORS
PERFORMANCE
ETHANOL
BIOSYNTHESIS
BATCH CULTURE
CONTINUOUS CULTURE
EXPERIMENTAL DATA
FERMENTATION
IMMOBILIZED CELLS
YEASTS
ALCOHOLS
BIOCONVERSION
DATA
FUNGI
HYDROXY COMPOUNDS
INFORMATION
MICROORGANISMS
NUMERICAL DATA
ORGANIC COMPOUNDS
PLANTS
SYNTHESIS
090222* - Alcohol Fuels- Preparation from Wastes or Biomass- (1976-1989)
140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)