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
Application number
Other languages
German (de)
Inventor
Keussler Helene Von
Original Assignee
Keussler Helene Von
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Keussler Helene Von filed Critical Keussler Helene Von
Publication of CH264588A publication Critical patent/CH264588A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D3/00Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/001Processes specially adapted for distillation or rectification of fermented solutions
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P7/00Preparation of oxygen-containing organic compounds
    • C12P7/02Preparation of oxygen-containing organic compounds containing a hydroxy group
    • C12P7/04Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
    • C12P7/06Ethanol, i.e. non-beverage
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P7/00Preparation of oxygen-containing organic compounds
    • C12P7/02Preparation of oxygen-containing organic compounds containing a hydroxy group
    • C12P7/04Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
    • C12P7/06Ethanol, i.e. non-beverage
    • C12P7/14Multiple stages of fermentation; Multiple types of microorganisms or re-use of microorganisms
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, 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)

PATENTANSPRUCH Verfahren zur Vergärung zuckerreicher Flüssigkeiten auf Alkohol unter ständiger Rückführung der Hefe aus der vergorenen in die zu vergärende Maische, dadurch gekenn- zeichnet, dass die bei der Rektifikation der vergorenen Maische abgeschiedenen, niedrig siedenden Verunreinigungen ebenfalls der zu vergärenden Maische zugesetzt werden. PATENT CLAIM Process for fermenting sugar-rich liquids on alcohol with constant return of the yeast from the fermented mash to the fermented mash, characterized in that the low-boiling impurities separated out during the rectification of the fermented mash are also added to the mash to be fermented.
CH264588D 1948-03-24 1948-03-24 Process for fermenting sugar-rich liquids on alcohol. CH264588A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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