A continuous enzymatic low-temperature cooking/liquefaction process for use in the production of ethanol from wheat flour is being presented. The process is carried out at 86 Cel in a continuous stirred tank reactor (CSTR) followed by a plug-flow tube reactor (PFR). The process has been tested in pilot scale with different types of wheat and various dosages of alpha-amylase (Termamyl). The feed slurry dry substance level was varied between 25 and 35 % w/w, and the mash viscosities after the CSTR and PFR stages were recorded. The liquefied mash was saccharified with amyloglucosidase (SAN) and simultaneously fermented with yeast (Sacc. cerev.) in a laboratory scale batch process. Satisfactory ethanol yields were obtained (89 % of theoretical). The effect of cellulase, hemi-cellulase, beta-glucanase and cellobiase on ethanol yield and stillage viscosity was investigated. The alcohol yield could be increased and the viscosity of the stillage could be slightly decreased.
Continuous low-temperature cooking of wheat for the production of ethanol
Kontinuierliches Niedrigtemperatur-Kochen von Weizen zur Herstellung von Aethanol
7th Int. Symp. on Alcohol Fuels. Inst. Francais du Petrole ; 1 , Okt ; 17-23
1986
7 Seiten, 6 Bilder, 6 Tabellen
Conference paper
English
ETHANOL , FERTIGUNG , KORN (GETREIDE) , KOCHEN , ENZYM , BIOCHEMISCHER REAKTOR , PILOTANLAGE , FERMENTATION , TRAUBENZUCKER , WEIZEN
Wheat based ethanol production - experiences from a new French plant
Automotive engineering | 1991
|Ethanol production by continuous cofermentation of whey and corn
Automotive engineering | 1993
|SAE Technical Papers | 2021
|COOKING CONTROL DEVICE, COOKING CONTROL SYSTEM, AND COOKING CONTROL METHOD
European Patent Office | 2020
|Ethanol production by bacteria
Automotive engineering | 1991
|