EP 0050662 A4 19820903 - PROCESS AND APPARATUS FOR CONTINUOUS PRODUCTION OF ETHANOL.
Title (en)
PROCESS AND APPARATUS FOR CONTINUOUS PRODUCTION OF ETHANOL.
Title (de)
VERFAHREN UND VORRICHTUNG ZUR KONTINUIERLICHEN HERSTELLUNG VON ÄTHANOL.
Title (fr)
PROCEDE ET DISPOSITIF DE PRODUCTION EN CONTINU D'ETHANOL.
Publication
Application
Priority
US 14496480 A 19800429
Abstract (en)
[origin: WO8103182A1] An energy-efficient method and apparatus for the continuous production of ethanol comprises a continuous fermentation of sugars or other fermentable material (34) capable of being convened to ethanol by the enzyme action of yeast and a simultaneous low-pressure distillation to remove the ethanol and carbon dioxide formed during the fermentation. The evaporator or boiler (31) can be placed directly in the fermentation tank or it can be external to it. The pressure is adjusted in the system to cause the ethanol to boil at the fermentation temperature. Ethanol vapors, together with a portion of the carbon dioxide produced are compressed, passed through a heat exchanger (33) in the evaporator (31) where the ethanol condenses and gives up its heat to evaporate more ethanol in the fermenting liquid. Pressures and rates of flow are adjusted so that the rates of evaporation and of condensation are substantially equal.
IPC 1-7
IPC 8 full level
C12P 7/06 (2006.01)
CPC (source: EP)
C12M 21/12 (2013.01); C12M 23/58 (2013.01); C12M 41/18 (2013.01); C12M 43/02 (2013.01); C12P 7/06 (2013.01); Y02E 50/10 (2013.01); Y02P 20/10 (2015.11)
Designated contracting state (EPC)
AT CH DE FR GB NL SE
DOCDB simple family (publication)
WO 8103182 A1 19811112; BR 8108577 A 19820406; EP 0050662 A1 19820505; EP 0050662 A4 19820903; JP S57500542 A 19820401
DOCDB simple family (application)
US 8100560 W 19810428; BR 8108577 A 19810428; EP 81901266 A 19810428; JP 50171781 A 19810428