AT60909B - Process for the production of fermentable sugar or alcohol from concentrated cellulose solution. - Google Patents
Process for the production of fermentable sugar or alcohol from concentrated cellulose solution.Info
- Publication number
- AT60909B AT60909B AT60909DA AT60909B AT 60909 B AT60909 B AT 60909B AT 60909D A AT60909D A AT 60909DA AT 60909 B AT60909 B AT 60909B
- Authority
- AT
- Austria
- Prior art keywords
- sugar
- alcohol
- production
- cellulose solution
- fermentable sugar
- Prior art date
Links
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 5
- 229920002678 cellulose Polymers 0.000 title description 10
- 239000001913 cellulose Substances 0.000 title description 10
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000002699 waste material Substances 0.000 claims description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 4
- 238000010411 cooking Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000003472 neutralizing effect Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000003415 peat Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 11
- 239000002253 acid Substances 0.000 description 4
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 150000001540 azides Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- LVGQIQHJMRUCRM-UHFFFAOYSA-L calcium bisulfite Chemical compound [Ca+2].OS([O-])=O.OS([O-])=O LVGQIQHJMRUCRM-UHFFFAOYSA-L 0.000 description 1
- 235000010260 calcium hydrogen sulphite Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Paper (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Description
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Verfahren zur Herstellung von gärbarem Zucker bzw. Spiritus aus konzentrierter
Zelloselösung.
Es ist schon bekannt, dass zellulosehaitiges Material in gärbaren Zucker übergeführt werden kann, und zwar durch Kochen desselben mit einer Säure. Die Untersuchungen des Erfinders haben nun ergeben, dass die Zellulose heim Behandeln mit einer Saure nicht direkt in Zucker übergeführt wird, sondern dass Zwischenprodukte entstehen. Diese Zwischenprodukte sind Azidzellulose und Zellose (Holzdextrin). I) ie Heschanfeniwit und Bildungsweise dieser Körper sind in der deutschen Patentschrift Nr. 19112 näher angegeben.
Aus dieser Patentschrift geht hervor, dass, wenn Zellulose oder zellulosehaltiges
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Kochen mit einer konzentrierten Saure kann aber die Zpllose 1l1 {'ht in Zuck''r iiber- geführt werden.
Die starke Zelloselösung. die entsteht, wenn die Zellulose mit beispielsweise 70- bis 80prozentiger Schwefelsäure gekocht wird, kann also nicht direkt, sondern nur nach entsprechender Verdünnung in Zucker übergeführt werden.
Das neue Merkmal der vorliegenden Erfindung besteht nun darin, die Abfallauge der Sulfitzellstoffabrikation als Verdünnungsmittel für die konzentrierte Zelloselösung zu verwenden. Diese Lauge enthält, wie bekannt, hauptsächlich organisch Verbindungen, Kalziumbisulfit, freie schweflige Säure und einen gewissen Gehalt an Zucker. Indem man für den oben genannten Zweck diese Lauge, welche eine sehr hohe Temperatur hat, wenn sie von den Kochern kommt, verwendet, erreicht man den Vorteil, dass gleichzeitig mit der Verdünnung der starken Zelloselösung eine Erhitzung derseiben eintritt und dass ihr Säuregehalt noutrahsiert Wtrd. Auch wird die Zelloselösung mit dem Zuckergehalt der Ablauge angereichert.
Die zuzusetzende Menge der Ablange ist zweckmässig so zu be-
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Zusatz einer neuen Mengt'düt-Abiauge.
Statt Ablauge der Sulfitzellstoffabrikation kann man eine ähnliche warme zucker-
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Kochlauge. In diesem Falle muss man aber ein besonderes Neutralisationsmittel, z. H. Kalk, zusetzen.
Von der erhaltenen Zuckerlösung kann der Zucker durch Abdampfen der Lösung und kristallisation dè8 Zu\'kers gewonnen werden.
Athylalkohol kann auch hergestellt werden, und zwar durch Gärung der von der
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Im folgenden ist ein Beispiel der praktischen Durchführung dos Verfahrens an- gegchen:
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selben wurde die Temperatur der Mischung 700 bis 85 C. Die Konzentration der Säure in der ZoHoselösung war 70 bis 800/0'nach dem Beimischen der Ablauge war die Konzentration derselben 0#5 bis 2#5%. Die Mischung wurde dann bei gewöhnlichem Druck während einer Stunde gekocht und die erhaltenen Zuckerlösung enthielt etwa 3 bis 70/0 Zucker.
PATENT-ANSPRÜCHE :
1. Verfahren zur Herstellung von gärbarem Zucker bzw. Spiritus aus konzentrierter Zelloselösung, gemäss welchem die konzentrierte Zelloselösung verdünnt und bei gewöhnlichem Druck gekocht wird, dadurch gekennzeichnet, dass als Verdünnungsmittel Sulfitzellstoffablauge verwendet wird, um gleichzeitig mit der Verdünnung der Lauge eine Erhitzung derselben und Anreicherung derselben mit dem Zuckergehalt der Ablauge zu erreichen.
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Process for the production of fermentable sugar or alcohol from concentrated
Cell solution.
It is already known that cellulosic material can be converted into fermentable sugar by boiling it with an acid. The investigations of the inventor have now shown that the cellulose is not converted directly into sugar when treated with an acid, but that intermediate products are formed. These intermediates are azide cellulose and zellose (wood dextrin). I) The Heschanfeniwit and the way in which these bodies are formed are specified in more detail in German Patent No.
From this patent it appears that if cellulose or cellulose-containing
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Cooking with a concentrated acid can, however, convert the unintentional 1l1 {'ht to sugar.
The strong cell solution. This occurs when the cellulose is boiled with, for example, 70 to 80 percent sulfuric acid, so it cannot be converted into sugar directly, but only after appropriate dilution.
The novel feature of the present invention now consists in using the waste eye of the sulphite pulp production as a diluent for the concentrated cellulose solution. As is known, this lye contains mainly organic compounds, calcium bisulphite, free sulphurous acid and a certain amount of sugar. By using this lye, which has a very high temperature when it comes from the cookers, for the above-mentioned purpose, one achieves the advantage that, at the same time as the dilution of the strong cellulose solution, the wafers heat up and their acidity decreases. The cell solution is also enriched with the sugar content of the waste liquor.
The amount of the cut to be added is appropriate to be
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Addition of a new Mengt'düt-Abiauge.
Instead of the liquor from the sulphite pulp production, a similar warm sugar-
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Cooking liquor. In this case you have to use a special neutralizing agent, e.g. H. Lime, add.
The sugar can be obtained from the sugar solution obtained by evaporating the solution and crystallizing the sugar.
Ethyl alcohol can also be produced by fermentation of the
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The following is an example of the practical implementation of the method:
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The same, the temperature of the mixture was 700 to 85 C. The concentration of the acid in the ZoHose solution was 70 to 800/0 'after the waste liquor was mixed in, the concentration of the same was 0 # 5 to 2 # 5%. The mixture was then boiled at ordinary pressure for one hour and the resulting sugar solution contained about 3 to 70/0 sugar.
PATENT CLAIMS:
1. A process for the production of fermentable sugar or alcohol from concentrated cellulose solution, according to which the concentrated cellulose solution is diluted and boiled at normal pressure, characterized in that sulphite pulp waste liquor is used as the diluent in order to simultaneously heat the same and enrich it with the dilution of the liquor to achieve the same with the sugar content of the waste liquor.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT60909T | 1912-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT60909B true AT60909B (en) | 1913-08-25 |
Family
ID=3582767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT60909D AT60909B (en) | 1912-10-03 | 1912-10-03 | Process for the production of fermentable sugar or alcohol from concentrated cellulose solution. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT60909B (en) |
-
1912
- 1912-10-03 AT AT60909D patent/AT60909B/en active
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