CH264588A - Process for fermenting sugar-rich liquids on alcohol. - Google Patents
Process for fermenting sugar-rich liquids on alcohol.Info
- Publication number
- CH264588A CH264588A CH264588DA CH264588A CH 264588 A CH264588 A CH 264588A CH 264588D A CH264588D A CH 264588DA CH 264588 A CH264588 A CH 264588A
- Authority
- CH
- Switzerland
- Prior art keywords
- alcohol
- sugar
- mash
- fermented
- rich liquids
- Prior art date
Links
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims description 12
- 235000000346 sugar Nutrition 0.000 title claims description 10
- 239000007788 liquid Substances 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 6
- 240000004808 Saccharomyces cerevisiae Species 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 3
- 235000006085 Vigna mungo var mungo Nutrition 0.000 description 8
- 240000005616 Vigna mungo var. mungo Species 0.000 description 8
- 238000000855 fermentation Methods 0.000 description 6
- 230000004151 fermentation Effects 0.000 description 6
- 235000016068 Berberis vulgaris Nutrition 0.000 description 2
- 241000335053 Beta vulgaris Species 0.000 description 2
- 240000000111 Saccharum officinarum Species 0.000 description 2
- 235000007201 Saccharum officinarum Nutrition 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012364 cultivation method Methods 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/001—Processes specially adapted for distillation or rectification of fermented solutions
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
- C12P7/14—Multiple stages of fermentation; Multiple types of microorganisms or re-use of microorganisms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Description
Verfahren zur Vergärung zuckerreicher Flüssigkeiten auf Alkohol. Bei der Vergärung von zuekerreichen Flüssigkeiten, deren Zuckergehalt<B>37,</B> über schreitet, wie Maischen aus Rüben- und Zuk- kerrohrmelasse, Rüben- und Zuckerrohrsaft oder andern Zuckerlösungen, entstehen nied- rigsiedende Veruni.-einigungen, die bei der Destillation und Rektifikation der vergorenen Maische zur Gewinnung von gereinigtem Al kohol als sogeriannter Vorlauf abgeschieden werden.
Er bildet ein minderwertiges Neben produkt, das neben den Verunreinigungen auch Alkohol enthält und raummässig etwa bis zu 8 % des rein gewonnenen Alkohols aus macht.
Es ist bekannt, den zuckerarmen Ablaugen der Sulfit-Zellstofferzeugung, die 2,w, und weniger vergärbaren Zucker enthalten, den bei der Rektifikation des Sulfitsprits abgeschie denen Vorlauf vor der Vergärung zuzufüh ren, um den darin enthaltenen Alkohol nicht zu verlieren. Die Ablaugen vermögen den zu rückgeführten Vorlauf zu verarbeiten, so dass eine Anreicherung an niedrigsiedenden Ver unreinigungen nicht stattfindet.
Dieses Verfahren ist bei der üblichen Ver- gärung zuckerreicher Flüssigkeiten mit Hilfe der Hefereinzuchtverfahren oder der Wieder verwendung gereinigter, aufgefrischter Hefe nicht anwendbar. Denn, wenn man diesen Maischen den Vorlauf zuführt, reichern sich die Verunreinigungen in der vergorenen Maische an, so dass bei der Destillation immer grösser werdende Vorlaufmengen abgezogen werden müssen. Die Rückführung des Vorlau fes in die zu vergärende Maische zuckerrei cher Flüssigkeiten war daher praktisch nicht durchführbar.
Es wurde nun gefunden, dass überraschen derweise ganz andere Verhältnisse eintreten, wenn man die Vergärung der zuckerreichen Flüssigkeiten unter Rückführung der Hefe, welche aus der vergorenen Maische durch Ausschleudern oder andere Mittel wieder gewonnen wird, in die zu vergärende Maische durchführt. Wenn man nach diesem Gärver- fahren mit grossen Hefemengen arbeitet. und den Vorlauf der zu vergärenden Maische zu führt, reichern sich die Verunreinigungen, wie sich zeigte, nicht an; der im Vorlauf ent haltene Alkohol wird mit; dem reinen Alkohol gewonnen und Verunreinigungen, wie Acet- aldehyd, zum Teil durch Reduktion zu Alko hol nutzbar gemacht.
Ausserdem wird die Gärung bzw. die Hefe so günstig beeinflusst, dass über die aus dem Vorlauf gewonnenen Alkoholmengen hinaus, eine Mehrausbeute an Alkohol erzielt wird.
Das Verfahren kann in absatzweiser, halb kontinuierlicher und ununterbrochener Ar beitsweise, unter Zusatz von Hefenähr- und Wirkstoffen und der üblichen Reinigung und Auffrischung der Hefe durchgeführt werden.
Process for fermenting sugar-rich liquids on alcohol. During the fermentation of liquids with a high sugar content, the sugar content of which exceeds <B> 37, </B>, such as mashes from beet and sugar cane molasses, beet and sugar cane juice or other sugar solutions, low-boiling mixtures are formed which the distillation and rectification of the fermented mash to extract purified alcohol as so-called forerunner.
It forms an inferior by-product which, in addition to the impurities, also contains alcohol and makes up around 8% of the pure alcohol obtained.
It is known that the low-sugar waste liquors from the sulphite pulp production, which contain 2, w, and less fermentable sugars, the lead in the rectification of the sulphite fuel before fermentation zuzufüh ren in order not to lose the alcohol contained therein. The waste liquors are able to process the feed that is returned, so that there is no accumulation of low-boiling impurities.
This method cannot be used with the usual fermentation of liquids rich in sugar using the yeast cultivation method or the reuse of purified, refreshed yeast. Because if you add the forerun to this mash, the impurities accumulate in the fermented mash, so that increasing amounts of the forerun have to be withdrawn during the distillation. The return of the Vorlauf fes in the mash to be fermented sugar-rich liquids was therefore practically not feasible.
It has now been found that, surprisingly, completely different conditions occur if the fermentation of the sugar-rich liquids is carried out with the return of the yeast, which is recovered from the fermented mash by centrifuging or other means, into the mash to be fermented. If you work with large amounts of yeast according to this fermentation process. and the flow of the mash to be fermented leads, the impurities, as it turned out, do not accumulate; the alcohol contained in the run is with; obtained from the pure alcohol and impurities such as acetaldehyde, partly made usable through reduction to alcohol.
In addition, the fermentation and the yeast are so favorably influenced that an increased alcohol yield is achieved beyond the amount of alcohol obtained from the forerun.
The process can be carried out intermittently, semi-continuously and uninterruptedly, with the addition of yeast nutrients and active ingredients and the usual cleaning and refreshment of the yeast.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH264588T | 1948-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH264588A true CH264588A (en) | 1949-10-31 |
Family
ID=4475349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH264588D CH264588A (en) | 1948-03-24 | 1948-03-24 | Process for fermenting sugar-rich liquids on alcohol. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH264588A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2416263A1 (en) * | 1978-01-31 | 1979-08-31 | Alfa Laval Ab | PROCESS FOR PREPARING A VOLATILE ORGANIC COMPOUND, PREFERABLY ETHANOL, BY CONTINUOUS FERMENTATION |
-
1948
- 1948-03-24 CH CH264588D patent/CH264588A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2416263A1 (en) * | 1978-01-31 | 1979-08-31 | Alfa Laval Ab | PROCESS FOR PREPARING A VOLATILE ORGANIC COMPOUND, PREFERABLY ETHANOL, BY CONTINUOUS FERMENTATION |
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