Title:
THE METHOD OF ETHANOL PRODUCTION WITHOUT THE RISE OF DISTILLER'S STILLAGE
Document Type and Number:
WIPO Patent Application WO/2001/002535
Kind Code:
A2
Abstract:
A method of processing agricultural materials such as grain, sugar-beet or potatoes. Grinded grain is first mixed with water and after the addition of liquifying and saccharifying enzyme, the risen mash is submitted to fermentation. Sliced sugar-beet is submitted to fermentation and after saccharifying of starch, crush potatoes are submitted to fermentation like in case of grain. The fermented mash is filtered under condition of overpressure on the side of suspension, the colature is conveyed to distillation and the filter cake is predried in the drier under a temperature higher than the temperature of boiling-water given used pressure, from where the by predrying ejected reminders of ethanol with water are conveyed to further cooling down, liquefying and distillation, while the filter cake without ethanol is then dried in the end-drier.
Inventors:
SASEK KAREL (CZ)
Application Number:
PCT/CZ2000/000047
Publication Date:
January 11, 2001
Filing Date:
June 26, 2000
Export Citation:
Assignee:
SASEK KAREL (CZ)
International Classes:
C12G3/00; A23K10/38; B01D3/00; C12F3/00; C12G3/021; C12G3/023; C12G3/024; (IPC1-7): C12F3/00
Foreign References:
| US4092434A | 1978-05-30 | |||
| US4306023A | 1981-12-15 | |||
| FR2442887A1 | 1980-06-27 |
Attorney, Agent or Firm:
Langrová, Irena (Plzen, CZ)
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Claims:
Patent Claims
| 1. | The method of ethanol production without the rise of distiller's stillage from grain and/or sugarbeet and/or potatoes, where grinded grain is first mixed with water and after addition of liquifying and saccharifying enzymes, the risen mash is submitted to fermentation, sliced sugarbeet is submited to fermentation and crush potatoes are submited to fermentation after the saccharifying of starch as in case of grain, characterized by, that the fermented mash is being filtered under the condition of overpressure on the side of suspension, the filtrat is conveyed to distillation and the filter cake is predried in drier in temperature higher than the temperature of boiling water given the pressure used, from where the by predrying ejected reminders of ethanol with water are conveyed to further cooling down, liquifying and to distillation, while the filter cake without ethanol is being dried in the enddrier. |
| 2. | The method of ethanol production without the rise of distiller's stillage according to the claim 1., characterized by, that the filter cake is washed with water before being placed in the drier and the liquid phase is pushed out with an inert gas. |
| 3. | The method of ethanol production without the rise of distiller's stillage according to the claims 1. and 2., characterized by, that during the production of ethanol on food quality the water solution of reminder of ethanol acquired by predrying, cooling down and liquifying, is coveyed to distillation to the fusel column of the technical ethanol. |
| 4. | The method of ethanol production without the rise of distiller's stillage according to the claims 1. and 2., characterized by, that during the production of ethanol on nonfood quality the water solution of reminder of ethanol acquired by predrying, cooling down and liquifying, is being mixed with the filtrat. |
| 5. | The method of ethanol production without the rise of distiller's stillage according to the claims 1. and 2. and 3. or 4., characterized by, that grinded grain straw is added to the fermented mash in a proportion of max. 15% of the weight. 6. The method of ethanol production without the rise of distiller's stillage according to the claim 1., characterized by, that an inert gas atmosphere is being maintained in the drier during predrying. |
Description:
INTERNATIONAL SEARCH REPORT Int : ional Application No Information on patent tamily members PCT/CZ 00/00047 Patent document Publication Patent family Publication cited in search report date member (s) date l US 4092434 A 30-05-1978 JP 1292385 C 16-12-1985 JP 51061688 A 28-05-1976 JP 56046831 B 05-11-1981 CA 1065268 A 30-10-1979 GB 1503760 A 15-03-1978 US 4306023 A 15-12-1981 NONE FR 2442887 A 27-06-1980 CH 637990 A 31-08-1983 AT 370440 B 25-03-1983 AT 760779 A 15-08-1982 AU 5330879 A 05-06-1980 CA 1119538 A 09-03-1982 ZA 7906438 A 26-11-1980
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