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Using reaction-technical models for characterisation and optimisation of continuous ethanol production with biomass recirculation

Technical Report:

Abstract

Ethanol production from S. cerevisiae was studied experimentally in one- and two-stage plants, with and without biomass recirculation. The hydrogen sources were glucose and molasses. The experimental findings were used as a basis for mathematical models whose kinetic parameters were established by comparison with the experiments. In the fermentation processes with glucose as carbon and energy source, an activation kinetics of yeast extract was considered in addition to the limitations resulting from the substrate and the inhibition by the produced ethanol. The problem of biomass recirculation received particular attention. Lamellar separators in the form of a cated tube cluster are described as an alternative to conventional conical separator tanks. Biomass concentrations in the fermenter may amount to about 80 gTS/l. Satisfactory simulation of the plant behaviour is possible by combining the kinetic approaches for the fermenter with the mathematical models for the separator.
Authors:
Publication Date:
Nov 28, 1983
Product Type:
Technical Report
Report Number:
NP-5770146
Reference Number:
FRG-84-15120; EDB-85-036418
Resource Relation:
Other Information: Diss. (Dr.-Ing.). Portions are illegible in microfiche products
Subject:
09 BIOMASS FUELS; 59 BASIC BIOLOGICAL SCIENCES; ETHANOL; BIOSYNTHESIS; ETHANOL PLANTS; DESIGN; GLUCOSE; FERMENTATION; MOLASSES; BIBLIOGRAPHIES; BIOCHEMICAL REACTION KINETICS; BIOMASS; BIOREACTORS; MATHEMATICAL MODELS; OPTIMIZATION; PRODUCTIVITY; RECYCLING; SACCHAROMYCES CEREVISIAE; SIMULATION; ALCOHOLS; ALDEHYDES; BIOCONVERSION; CARBOHYDRATES; DOCUMENT TYPES; ENERGY SOURCES; FUNGI; HEXOSES; HYDROXY COMPOUNDS; INDUSTRIAL PLANTS; KINETICS; MICROORGANISMS; MONOSACCHARIDES; ORGANIC COMPOUNDS; PLANTS; REACTION KINETICS; RENEWABLE ENERGY SOURCES; SACCHARIDES; SACCHAROMYCES; SYNTHESIS; YEASTS; 090222* - Alcohol Fuels- Preparation from Wastes or Biomass- (1976-1989); 550700 - Microbiology; 140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)
OSTI ID:
8121528
Research Organizations:
Technische Univ. Berlin (Germany, F.R.). Fachbereich Lebensmitteltechnologie und Biotechnologie
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Other: ON: DE85770146
Availability:
NTIS (US Sales Only), PC A12/MF A01; 1.
Submitting Site:
DE
Size:
Pages: 252
Announcement Date:
Dec 01, 1984

Technical Report:

Citation Formats

Yayanata, Y. Using reaction-technical models for characterisation and optimisation of continuous ethanol production with biomass recirculation. Germany: N. p., 1983. Web.
Yayanata, Y. Using reaction-technical models for characterisation and optimisation of continuous ethanol production with biomass recirculation. Germany.
Yayanata, Y. 1983. "Using reaction-technical models for characterisation and optimisation of continuous ethanol production with biomass recirculation." Germany.
@misc{etde_8121528,
title = {Using reaction-technical models for characterisation and optimisation of continuous ethanol production with biomass recirculation}
author = {Yayanata, Y}
abstractNote = {Ethanol production from S. cerevisiae was studied experimentally in one- and two-stage plants, with and without biomass recirculation. The hydrogen sources were glucose and molasses. The experimental findings were used as a basis for mathematical models whose kinetic parameters were established by comparison with the experiments. In the fermentation processes with glucose as carbon and energy source, an activation kinetics of yeast extract was considered in addition to the limitations resulting from the substrate and the inhibition by the produced ethanol. The problem of biomass recirculation received particular attention. Lamellar separators in the form of a cated tube cluster are described as an alternative to conventional conical separator tanks. Biomass concentrations in the fermenter may amount to about 80 gTS/l. Satisfactory simulation of the plant behaviour is possible by combining the kinetic approaches for the fermenter with the mathematical models for the separator.}
place = {Germany}
year = {1983}
month = {Nov}
}