CN101343647B - Method for preparing ethyl alcohol with sorgo stalk - Google Patents
Method for preparing ethyl alcohol with sorgo stalk Download PDFInfo
- Publication number
- CN101343647B CN101343647B CN2008100129642A CN200810012964A CN101343647B CN 101343647 B CN101343647 B CN 101343647B CN 2008100129642 A CN2008100129642 A CN 2008100129642A CN 200810012964 A CN200810012964 A CN 200810012964A CN 101343647 B CN101343647 B CN 101343647B
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- China
- Prior art keywords
- sweet sorghum
- sorghum stalk
- liquid material
- stalk
- magma
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- 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
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- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The invention discloses a method for preparing ethyl alcohol with a sweet sorghum stalk, which comprises the steps of preparing fluid material, preparing inoculating material through alcohol yeast, preparing fermented mash through the fermentation, wort sludge disaffiliating of the fermented mash as well as distilling and extracting ethyl alcohol. The fluid material is prepared according to the following methods: the sweet sorghum stalk is chosen, the panicles and the roots of the sweet sorghum stalk are cut, and after washing and removing impurities, and the sweet sorghum stalk is fed into a beating machine to be smashed and beaten to obtain the primary pulp of the sweet sorghum stalk which is then taken as the fluid material for preparing the ethyl alcohol. The invention can improve the utilization ratio of the sweet sorghum stalk, thereby enhancing the ethyl alcohol quantity produced by the sweet sorghum stalk of unit weight.
Description
Technical field
The present invention relates to a kind of preparation alcoholic acid method, especially a kind ofly prepare the alcoholic acid method with biological fermentation.
Background technology
At present, preparation alcoholic acid method mainly contains synthesis method and biological fermentation process, and biological fermentation process is divided into according to employed raw material difference: starch system ethanol, molasses system ethanol, Mierocrystalline cellulose system ethanol.Application number is that 200710010720.6 Chinese patent application discloses a kind of method with preparing ethyl alcohol with sorgo stalk, chopping obtained giving birth to particle after this method employing was removed fringe and root with sweet sorghum stalk, to give birth to particle and add water and get the liquid material, again to the method for liquid material with the distillery yeast fermentative production of ethanol; Application number is the method that 200510076833.7 Chinese patent application discloses a kind of producing alcohol from sugar grass straw juice, with the processing of squeezing the juice of the sweet sorghum stalk after the maturation, obtains syrup, by syrup is carried out fermentative production of ethanol.These methods with preparing ethyl alcohol with sorgo stalk exist utilizes inadequate shortcoming to the sugar in the sweet sorghum stalk, and mainly be to utilize the sugar in the sweet sorghum stalk to prepare ethanol, and contained starch and Mierocrystalline cellulose all handled as waste residue in the sweet sorghum stalk, be not effectively used, thereby reduced the amount of alcohol that the sweet sorghum stalk of unit weight is produced.
Summary of the invention
The technical problem that invention will solve, the technical problem to be solved in the present invention provide a kind of method with preparing ethyl alcohol with sorgo stalk, and this method can improve the utilization ratio of sweet sorghum stalk, and then improve the amount of alcohol that the sweet sorghum stalk of unit weight is produced.
The technical scheme that the technical solution problem is taked: a kind of method with preparing ethyl alcohol with sorgo stalk, comprise preparation liquid material, inoculate material, fermentative preparation karusen, the separation of karusen wort sludge, distillation extraction alcoholic acid step with the distillery yeast preparation, described liquid material prepares in accordance with the following methods: get sweet sorghum stalk, the fringe and the root of excision sweet sorghum stalk, sending into hollander behind the clean removal impurity pulls an oar, obtain sweet sorghum stalk magma, with sweet sorghum stalk magma as preparation alcoholic acid liquid material.
As improvement of the present invention, described liquid material is undertaken obtaining after the saccharification by adding cellulase and saccharifying enzyme in sweet sorghum stalk magma.
In described saccharifying, the add-on of cellulase and saccharifying enzyme is that each is determined according to the ratio of 10-15 units/gram sweet sorghum stalk magma.
In described saccharifying, the pH value of sweet sorghum stalk magma is controlled at 4.4-5.2,32-36 ℃ of the temperature of saccharification, saccharification time 3-6 hours.
Beneficial effect: owing to adopted in the technical scheme of the present invention " get sweet sorghum stalk; the fringe and the root of excision sweet sorghum stalk; clean to remove and to send into hollander behind the impurity and pull an oar; obtain sweet sorghum stalk magma; with sweet sorghum stalk magma as preparation alcoholic acid liquid material " this technique means, having overcome prior art adopts when the sweet sorghum stalk chopping added water and prepare the liquid material because the big reaction of the sweet sorghum stalk granularity halfway shortcoming of chopping, also overcome when sweet sorghum stalk squeezed the juice preparation liquid material and can be converted into alcoholic acid sugar by lingering section in the marc, to the halfway shortcoming of utilizing of sugar.As improvement of the present invention, carry out the saccharification processing by adding cellulase and saccharifying enzyme in the sweet sorghum stalk magma after making beating, make Mierocrystalline cellulose in the sweet sorghum stalk and starch be converted into the sugar that can be decomposed by distillery yeast, thereby made full use of and to have prepared the various useful components of alcoholic acid in the sweet sorghum stalk, improved utilization ratio of raw materials, the sweet sorghum stalk of unit weight adopt method of the present invention produce alcoholic acid output be adopt common without 2 times of making beating and saccharification treatment process production alcoholic acid output.In addition, the making beating preparation liquid material advantages such as also to have equipment simple for preparation liquid material, and man-hour is short of squeezing the juice.
Embodiment
Below technical scheme of the present invention is described in further detail:
Embodiment 1
Get sweet sorghum stalk, the fringe and the root of excision sweet sorghum stalk clean to be removed and to be sent into hollander behind the impurity and pull an oar, and obtain sweet sorghum stalk magma, with sweet sorghum stalk magma as preparation alcoholic acid liquid material.
Regulate the pol to 18% of liquid material, pH value to 4.4-5.2, temperature is 32-36 ℃, adds distillery yeast in the liquid material, the weight of distillery yeast is 1.0 ‰ of sweet sorghum stalk magma weight, must inoculate the liquid material;
To inoculate liquid material temperature and be controlled between 32-36 ℃, ferment 58-80 hours, get karusen;
With karusen isolate behind the wort sludge the karusen clear liquid;
Change the karusen clear liquid over to distillation tower and distill, obtain the ethanol of ethanol volumetric concentration more than 95%.
Embodiment 2
Get sweet sorghum stalk, the fringe and the root of excision sweet sorghum stalk are sent into hollander behind the clean removal impurity and are pulled an oar, and obtain sweet sorghum stalk magma;
Sweet sorghum stalk magma temperature is controlled at 36 ℃, and pH value is controlled at 4.4, add cellulase and saccharifying enzyme respectively according to the ratio of 10 units/gram sweet sorghum stalk magma and carry out saccharification and handle, saccharification time 6 hours, the liquid material.
Regulate the pol to 18% of liquid material, keep 36 ℃ of pH value 4.4, temperature, add distillery yeast in the liquid material, the weight of distillery yeast is 1.0 ‰ of sweet sorghum stalk magma weight, must inoculate the liquid material;
To inoculate liquid material temperature and be controlled between 36 ℃, ferment 58 hours, get karusen;
With karusen isolate behind the wort sludge the karusen clear liquid;
Change the karusen clear liquid over to distillation tower and distill, obtain the ethanol of ethanol volumetric concentration more than 95%.
Embodiment 3
Get sweet sorghum stalk, the fringe and the root of excision sweet sorghum stalk are sent into hollander behind the clean removal impurity and are pulled an oar, and obtain sweet sorghum stalk magma;
Sweet sorghum stalk magma temperature is controlled at 32 ℃, and pH value is controlled at 5.2, add cellulase and saccharifying enzyme respectively according to the ratio of 15 units/gram sweet sorghum stalk magma and carry out saccharification and handle, saccharification time 3 hours, the liquid material.
Regulate the pol to 18% of liquid material, keep 32 ℃ of pH value 5.2, temperature, add distillery yeast in the liquid material, the weight of distillery yeast is 1.0 ‰ of sweet sorghum stalk magma weight, must inoculate the liquid material;
To inoculate liquid material temperature and be controlled at 34 ℃, ferment 80 hours, get karusen;
With karusen isolate behind the wort sludge the karusen clear liquid;
Change the karusen clear liquid over to distillation tower and distill, obtain the ethanol of ethanol volumetric concentration more than 95%.
Embodiment 4
Get sweet sorghum stalk, the fringe and the root of excision sweet sorghum stalk are sent into hollander behind the clean removal impurity and are pulled an oar, and obtain sweet sorghum stalk magma;
Sweet sorghum stalk magma temperature is controlled at 35 ℃, and pH value is controlled at 5.0, add cellulase and saccharifying enzyme respectively according to the ratio of 13 units/gram sweet sorghum stalk magma and carry out saccharification and handle, saccharification time 5 hours, the liquid material.
Regulate the pol to 18% of liquid material, keep 35 ℃ of pH value 5.0, temperature, add distillery yeast in the liquid material, the weight of distillery yeast is 1.0 ‰ of sweet sorghum stalk magma weight, must inoculate the liquid material;
To inoculate liquid material temperature and be controlled at 35 ℃, ferment 76 hours, get karusen;
With karusen isolate behind the wort sludge the karusen clear liquid;
Change the karusen clear liquid over to distillation tower and distill, obtain the ethanol of ethanol volumetric concentration more than 95%.
Enforcement of the present invention not only is confined to use sweet sorghum stalk as producing the alcoholic acid raw material; be equally applicable to produce ethanol with sacchariferous crop material such as sugarcane, corn; all employings with stalk beating after preparation inoculation material, carry out fermentative production of ethanol, all fall into protection scope of the present invention.
Claims (1)
1. method with preparing ethyl alcohol with sorgo stalk, comprise preparation liquid material, inoculate material, fermentative preparation karusen, the separation of karusen wort sludge, distillation extraction alcoholic acid step, it is characterized in that described liquid material prepares in accordance with the following methods with the distillery yeast preparation:
Get sweet sorghum stalk, the fringe and the root of excision sweet sorghum stalk clean to be removed and to be sent into hollander behind the impurity and pull an oar, and obtain sweet sorghum stalk magma, with sweet sorghum stalk magma as preparation alcoholic acid liquid material,
Described liquid material is undertaken obtaining after the saccharification by adding cellulase and saccharifying enzyme in sweet sorghum stalk magma,
Wherein, in the described saccharifying, the add-on of cellulase and saccharifying enzyme is that each is determined according to the ratio of 10-15 units/gram sweet sorghum stalk magma; And in the described saccharifying, the pH value of liquid material is controlled at 4.4-5.2, the temperature 32-36 of saccharification ℃, and saccharification time 3-6 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100129642A CN101343647B (en) | 2008-08-28 | 2008-08-28 | Method for preparing ethyl alcohol with sorgo stalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100129642A CN101343647B (en) | 2008-08-28 | 2008-08-28 | Method for preparing ethyl alcohol with sorgo stalk |
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| Publication Number | Publication Date |
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| CN101343647A CN101343647A (en) | 2009-01-14 |
| CN101343647B true CN101343647B (en) | 2011-03-16 |
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| CN2008100129642A Expired - Fee Related CN101343647B (en) | 2008-08-28 | 2008-08-28 | Method for preparing ethyl alcohol with sorgo stalk |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103740568B (en) * | 2014-01-02 | 2016-06-22 | 中国科学院近代物理研究所 | Production method of sweet sorghum juice liquor |
| CN106222207A (en) * | 2016-08-10 | 2016-12-14 | 甘肃省科学院生物研究所 | A kind of sweet sorghum stalk fermentation fuel ethanol and the method for coproduction albumen feedstuff |
| CN108094710A (en) * | 2017-12-11 | 2018-06-01 | 广西中粮生物质能源有限公司 | A kind of method of the full vinasse production of LIPIDS OF DRY RICE EMBRYO |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220379A (en) * | 2008-02-05 | 2008-07-16 | 中国农业大学 | Method for producing ethyl alcohol by using sorgo stalk |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220379A (en) * | 2008-02-05 | 2008-07-16 | 中国农业大学 | Method for producing ethyl alcohol by using sorgo stalk |
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