Scale-up and performance of an immobilized cell reactor separator for the production of ethanol from whey lactose
An adsorbed microbial cell, trickle flow, reactor incorporating a circulating gas phase to simultaneously separate a volatile inhibitory product has shown high fermentation rates and effective product separation on a 1 in. diameter lab bench scale. Carbon dioxide generated by the fermentation is recirculated to strip the volatile fermentation product from the fermentation broth. Random and structured packings were evaluated and a parallel type structured packing was developed consisting of a plates of absorbant material to which cells are adsorbed and spaced to allow passage of the circulating gas stream. The substrate solution flows by gravity in a capillary flow fashion down through the plates in which the cells are immobilized. The theoretical reactor separation and fermentation performance as a function of plate thickness and gas channel spacing was evaluated. This reactor has been scaled up to a 6 in. ID reactor with a total reactor volume of about 50 liters using a spiral wound version of the parallel plates, and then to a 24 in. ID reactor with a reactor volume of about 1300 liters. 16 refs., 12 figs., 1 tab.
- Research Organization:
- Purdue Univ., Lafayette, IN (USA). Dept. of Agricultural Engineering
- Sponsoring Organization:
- DOE/CE
- DOE Contract Number:
- FG02-85CE40772
- OSTI ID:
- 6819948
- Report Number(s):
- CONF-8808305-1; ON: DE90012543
- Resource Relation:
- Conference: Society of Industrial Engineers Meeting (SIM), Chicago, IL (USA), 8 Aug 1988
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BIOREACTORS
PERFORMANCE TESTING
ETHANOL
PRODUCTION
SEPARATION PROCESSES
EFFICIENCY
ABSORPTION
CARBON DIOXIDE
CELL CULTURES
CONCENTRATION RATIO
DENSITY
DIMENSIONS
FERMENTATION
LACTOSE
LAYERS
MASS TRANSFER
OPTIMIZATION
PACKED BED
PRESSURE EFFECTS
PROCESS CONTROL
PRODUCTIVITY
RANDOMNESS
VOLATILITY
WHEY
ALCOHOLS
BIOCONVERSION
CARBOHYDRATES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CONTROL
DISACCHARIDES
FOOD
HYDROXY COMPOUNDS
INDUSTRIAL WASTES
MILK PRODUCTS
OLIGOSACCHARIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SACCHARIDES
TESTING
WASTES
090900* - Biomass Fuels- Processing- (1990-)