CN106399025A - Method for preparing ethyl alcohol through mixed fermentation of cassava and molasses - Google Patents
Method for preparing ethyl alcohol through mixed fermentation of cassava and molasses Download PDFInfo
- Publication number
- CN106399025A CN106399025A CN201610933959.XA CN201610933959A CN106399025A CN 106399025 A CN106399025 A CN 106399025A CN 201610933959 A CN201610933959 A CN 201610933959A CN 106399025 A CN106399025 A CN 106399025A
- Authority
- CN
- China
- Prior art keywords
- molasses
- fermentation
- mixed liquor
- yeast
- percent
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12G—WINE; PREPARATION THEREOF; ALCOHOLIC BEVERAGES; PREPARATION OF ALCOHOLIC BEVERAGES NOT PROVIDED FOR IN SUBCLASSES C12C OR C12H
- C12G3/00—Preparation of other alcoholic beverages
- C12G3/02—Preparation of other alcoholic beverages by fermentation
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12H—PASTEURISATION, STERILISATION, PRESERVATION, PURIFICATION, CLARIFICATION OR AGEING OF ALCOHOLIC BEVERAGES; METHODS FOR ALTERING THE ALCOHOL CONTENT OF FERMENTED SOLUTIONS OR ALCOHOLIC BEVERAGES
- C12H6/00—Methods for increasing the alcohol content of fermented solutions or alcoholic beverages
- C12H6/02—Methods for increasing the alcohol content of fermented solutions or alcoholic beverages by distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The invention discloses a method for preparing ethyl alcohol through mixed fermentation of cassava and molasses. The method comprises the following concrete technical steps of carrying out bacterial inhibition on the molasses, adjusting brix and a pH value of the molasses, adding a molasses correction liquor into a cassava liquefied undecanted wine according to 1 to 5 percent of the total weight of the cassava liquefied undecanted wine, cooling in a liquefied undecanted wine heat exchanger to be at the temperature of 28 to 32 DEG C so as to obtain mixed liquor, adding sulfuric acid in the mixed liquor to adjust the acidity, and maintaining the pH value to be ranged from 4.2 to 4.4; feeding 1/7 of the mixed liquor into a distiller yeast tank for spreading cultivation, adopting the obtained mixed liquor as a nutrient medium required for normal growth of an activated yeast, feeding the other 6/7 of the mixed liquor into a fermentation tank for fermentation, using super saccharomyces cerevisiae with the yeast number being 2.0 to 2.5 hundred million/ml, fermenting until pH to be 4.2 to 4.4, and fermenting for 72 hours at the temperature of 30 to 33 DEG C to obtain fermentation liquor; rectifying the fermentation liquor to obtain the ethyl alcohol. According to the method for preparing the ethyl alcohol through mixed fermentation of the cassava and the molasses provided by the invention, the spirit concentration is increased by 0.5 percent to 1.5 percent, the residual total sugar is less than 2.0 percent, the cost of powder syrup is reduced by RMB 15/ton, the removal rate of TCOD(Total Chemical Oxygen Demand) of fermentation wastewater still achieve 86.28 percent, and the removal rate of SCOD (Soluble Chemical Oxygen Demand) achieves 86.05 percent.
Description
Technical field
The present invention relates to a kind of method that Maninot esculenta crantz., molasses mixed fermentation prepare ethanol, belong to biofermentation technique neck
Domain.
Background technology
The raw material producing ethanol in south China mainly has two kinds, and one kind is with Maninot esculenta crantz. as raw material, and another kind is with Caulis Sacchari sinensis
Side-product molasses be raw material, prepared by biofermentation, wherein with Maninot esculenta crantz. for fermenting raw materials produce ethanol technique in, wine
Mother spread cultivation liquid outward appearance sugar 14-18OBX, pH value 3.6-4.5, using starch yeast bacterium；The liquefaction total sugar of fermentation liquid is in 23.5%-
In the range of 26.5%, add carbamide as trophic factors；Fermentation temperature controls in the range of 32-33 DEG C；After fermentation ends, wine part reaches
To 13-14%（v/v）, the fermentation index of residual total sugar≤1.6.
Produced in the technique of ethanol for fermenting raw materials with molasses, molasses are diluted 20OThe outward appearance sugar of BX is as yeast spread cultivation
Liquid, using molasses special yeast bacterium；It is 33%-35% that fermentation liquid is diluted to total sugar for molasses, adds carbamide as trophic factors；Send out
Ferment temperature control is in the range of 30 DEG C -34 DEG C；After fermentation ends, wine part reaches 9-11%（v/v）, the fermentation of residual total sugar≤2.0 refers to
Mark.
It is more satisfactory for producing ethanol with Maninot esculenta crantz. for fermenting raw materials, and the raw material producing ethanol at present still with Maninot esculenta crantz. is
Main, but because industrial crops species is various, the economic benefit having many industrial crops is higher than plantation Maninot esculenta crantz., and the choice of peasant increases
Plus, cause that the plantation of Maninot esculenta crantz. is impacted, cultivated area persistently reduced in recent years, and Maninot esculenta crantz. price is high, raw material in short supply so that former
The very big a part of dependence Southeast Asia import of material, the raising of cost of material makes Alcohol Production cost increase, with Maninot esculenta crantz. is being
On the premise of primary raw material, the cost how reducing production ethanol is the problem that should draw attention.
The requirement to nutrition for the mechanism of molasses alcohol fermentation is essentially identical with starchy material alcohol fermentation, in theory
Mixed fermentation can be realized.But because in molasses, the content of organics such as colloid, acid is higher, molasses addition is unreasonable, can cause
When fermenting initial, concentration is higher is unfavorable for starch yeast bacteria growing for sugar；In molasses after fermentation ends, fermentable sugar is not excessive, residual
Total sugar raises；It is too high that molasses easily cause useless wine with dregs clear liquid COD when adding more, increases sewage handling problem.Therefore it provides it is a kind of
The method that Maninot esculenta crantz. produces ethanol with molasses mixed fermentation, research molasses replace Maninot esculenta crantz. liquefied fermented glutinous rice mixed alcohol by different proportion and send out
Ferment, determines advantage, the optimum mixture ratio example of mixed fermentation, and optimal molasses adding technology, solves due to can not send out in molasses
Initial total sugar too high impact yeast growth caused by the higher physical property of content of organics such as ferment sugar, colloid, acid, useless mash
The problems such as COD is too high, cost declines, here it is meaning of the present invention is located.By retrieving and finding no the technology of this respect
Disclose.
Content of the invention
The technical problem to be solved, be overcome existing simple utilization Maninot esculenta crantz. be raw material or simple be former with molasses
The production cost that material produces existing for ethanol is high, and the low problem of yield provides a kind of Maninot esculenta crantz., molasses mixed fermentation to prepare ethanol
Method.
For achieving the above object, this invention takes following technical proposals, ethanol is prepared in a kind of Maninot esculenta crantz., molasses mixed fermentation
Method, including following particular technique steps：
（1）Take molasses to add bleaching powder antibacterial during unloading, obtain antibacterial molasses, the amount of added bleaching powder is 0.01-
0.05kg/t molasses；
（2）Antibacterial molasses are taken to add water mix homogeneously in a mixer again, adjustment brix is 60-65oBX, add sulphuric acid in mixing
Mix homogeneously in device, adjustment pH value is 3.0-3.5, obtains molasses adjustment liquid;
（3）By the 1-5% of Maninot esculenta crantz. liquefied fermented glutinous rice gross weight, molasses adjustment liquid is added in Maninot esculenta crantz. liquefied fermented glutinous rice, and together in liquefied fermented glutinous rice
Heat exchanger carries out being cooled to 28-32 DEG C and obtains mixed liquor, adds sulphuric acid and adjusts acidity, make pH value maintain 4.2- in mixed liquor
4.4.；
（4）Take the 1/7 of above-mentioned mixed liquor to enter distiller's yeast tank to spread cultivation, as the yeast normal growth desired nutritional base having activated, separately
6/7 entrance ferment tank, using super Saccharomyces cerevisiae, yeast number reaches 2.0-2.5 hundred million/ml, and ferment pH to 4.2-4.4, in 30-
33 DEG C of bottom fermentations 72 hours, obtain fermentation liquid；
（5）Take fermentation liquid to carry out rectification in rectifying device, obtain ethanol.
The method that described Maninot esculenta crantz., molasses mixed fermentation prepare ethanol is carried out in water-tight equipment, and these equipment include：
Molasses storage tank souring tank thinning tank fermentation tank, is connected by pump and sealing pipeline between equipment and equipment.
Take the present invention of above-mentioned measure, make full use of Maninot esculenta crantz., the general character of molasses fermented principle, in original Maninot esculenta crantz. fermentation work
Carry out simple scrap build in skill, realize diversification of feedstock purpose.Main advantage is as follows：
1st, under identical Maninot esculenta crantz. liquefied fermented glutinous rice concentration, 5% molasses are added, fermented wine part increases 0.5%-1.5%, residual total sugar<2.0%.
2nd, under identical Preliminary fermentation total sugar, reduce 5%-10% Maninot esculenta crantz. slurry usage amount, reduce by 15 yuan/ton of slurry costs.
3rd, add 5% molasses in Maninot esculenta crantz. liquefied fermented glutinous rice, impact will not be produced on sweat.Although waste water TCOD increases
44.50%, but no affect in Activity of Anaerobic Granular Sludges, anaerobic reactor still reaches to molasses mixed fermentation waste water TCOD clearance
Reach 86.05% to 86.28%, SCOD clearance.
With reference to embodiment, the present invention is described in further detail.
Specific embodiment
Embodiment 1
（1）Take molasses to add bleaching powder 0.01kg/t molasses during unloading, obtain antibacterial molasses；
（2）Antibacterial molasses are taken to add water mix homogeneously in a mixer so that the antibacterial molasses brix in blender is 65 againoBX,
Mix homogeneously, so that pH value is 3.0, obtains molasses adjustment liquid in a mixer to add sulphuric acid;
（3）By the 1% of Maninot esculenta crantz. liquefied fermented glutinous rice gross weight, molasses adjustment liquid is added in Maninot esculenta crantz. liquefied fermented glutinous rice, in liquefied fermented glutinous rice heat exchanger
After mix homogeneously, it is cooled to 28 DEG C and obtains mixed liquor, mixed liquor adds sulphuric acid and adjusts acidity, make pH value maintain 4.2；
（4）Take the 1/7 of above-mentioned mixed liquor to enter distiller's yeast tank to spread cultivation, as the yeast normal growth desired nutritional base having activated, separately
6/7 enters ferment tank, and fermentation condition is：Yeast uses Angel company super Saccharomyces cerevisiae, and yeast number reaches 2.0 hundred million/ml,
Fermentation pH to 4.2, in 30 DEG C of bottom fermentation 72h, obtains fermentation liquid；
（5）Take fermentation liquid to carry out rectification in rectifying device, obtain ethanol.
Embodiment 2
（1）Take molasses to add bleaching powder 0.03kg/t molasses during unloading, obtain antibacterial molasses；
（2）Antibacterial molasses are taken to add water mix homogeneously in a mixer so that the antibacterial molasses brix in blender is 60 againoBX,
Mix homogeneously, so that pH value is 3.5, obtains molasses adjustment liquid in a mixer to add sulphuric acid;
（3）By the 5% of Maninot esculenta crantz. liquefied fermented glutinous rice gross weight, molasses adjustment liquid is added in Maninot esculenta crantz. liquefied fermented glutinous rice, in liquefied fermented glutinous rice heat exchanger
After mix homogeneously, it is cooled to 30 DEG C and obtains mixed liquor, mixed liquor adds sulphuric acid and adjusts acidity, make pH value maintain 4.3.；
（4）Take the 1/7 of above-mentioned mixed liquor to enter distiller's yeast tank to spread cultivation, as the yeast normal growth desired nutritional base having activated, separately
6/7 enters ferment tank, and fermentation condition is：Yeast uses Angel company super Saccharomyces cerevisiae, and yeast number reaches 2.2 hundred million/ml,
Fermentation pH to 4.3, in 32 DEG C of bottom fermentation 72h, obtains fermentation liquid；
（5）Take fermentation liquid to carry out rectification in rectifying device, obtain ethanol.
Embodiment 3
（1）Take molasses to add bleaching powder 0.05kg/t molasses during unloading, obtain antibacterial molasses；
（2）Antibacterial molasses are taken to add water mix homogeneously in a mixer so that the antibacterial molasses brix in blender is 63 againoBX,
Mix homogeneously, so that pH value is 3.3, obtains molasses adjustment liquid in a mixer to add sulphuric acid;
（3）By the 3% of Maninot esculenta crantz. liquefied fermented glutinous rice gross weight, molasses adjustment liquid is added in Maninot esculenta crantz. liquefied fermented glutinous rice, in liquefied fermented glutinous rice heat exchanger
After mix homogeneously, it is cooled to 29 DEG C and obtains mixed liquor, mixed liquor adds sulphuric acid and adjusts acidity, make pH value maintain 4.4.
（4）Take the 1/7 of above-mentioned mixed liquor to enter distiller's yeast tank to spread cultivation, as the yeast normal growth desired nutritional having activated
Base, another 6/7 enters ferment tank, and fermentation condition is：Yeast uses Angel company super Saccharomyces cerevisiae, and yeast number reaches 2.4
Hundred million/ml, ferment pH to 4.4, in 33 DEG C of bottom fermentation 72h, obtains fermentation liquid；
（5）Take fermentation liquid to carry out rectification in rectifying device, obtain ethanol.
Claims (1)
1. a kind of method that ethanol is prepared in Maninot esculenta crantz., molasses mixed fermentation, including following particular technique steps：
（1）Take molasses to add bleaching powder antibacterial during unloading, obtain antibacterial molasses, the amount of added bleaching powder is 0.01-
0.05kg/t molasses；
（2）Antibacterial molasses are taken to add water mix homogeneously in a mixer again, adjustment brix is 60-65oBX, add sulphuric acid in mixing
Mix homogeneously in device, adjustment pH value is 3.0-3.5, obtains molasses adjustment liquid;
（3）By the 1-5% of Maninot esculenta crantz. liquefied fermented glutinous rice gross weight, molasses adjustment liquid is added in Maninot esculenta crantz. liquefied fermented glutinous rice, and together in liquefied fermented glutinous rice
Heat exchanger carries out being cooled to 28-32 DEG C and obtains mixed liquor, adds sulphuric acid and adjusts acidity, make pH value maintain 4.2- in mixed liquor
4.4；
（4）Take the 1/7 of above-mentioned mixed liquor to enter distiller's yeast tank to spread cultivation, as the yeast normal growth desired nutritional base having activated, separately
6/7 entrance ferment tank, using super Saccharomyces cerevisiae, yeast number reaches 2.0-2.5 hundred million/ml, and ferment pH to 4.2-4.4, in 30-
33 DEG C of bottom fermentation 72 Hes, obtain fermentation liquid；
（5）Take fermentation liquid to carry out rectification in rectifying device, obtain ethanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610933959.XA CN106399025A (en) | 2016-11-01 | 2016-11-01 | Method for preparing ethyl alcohol through mixed fermentation of cassava and molasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610933959.XA CN106399025A (en) | 2016-11-01 | 2016-11-01 | Method for preparing ethyl alcohol through mixed fermentation of cassava and molasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106399025A true CN106399025A (en) | 2017-02-15 |
Family
ID=58011945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610933959.XA Pending CN106399025A (en) | 2016-11-01 | 2016-11-01 | Method for preparing ethyl alcohol through mixed fermentation of cassava and molasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106399025A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116103102A (en) * | 2021-11-10 | 2023-05-12 | 国投生物科技投资有限公司 | Feeding device and yeast wine mash conveying equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010881A (en) * | 2009-09-07 | 2011-04-13 | 广西工学院 | Thick mash alcohol fermentation process for mixing tapioca by using molasses hydrolyzate |
| CN102703518A (en) * | 2012-06-19 | 2012-10-03 | 姜蓉生 | Method for producing alcohol and cultivating edible fungus by solid fermentation through mixing manioc waste with treacle |
| CN104480147A (en) * | 2014-12-05 | 2015-04-01 | 姜蓉生 | Method for producing alcohol by combination of liquid fermentation and solid fermentation |
-
2016
- 2016-11-01 CN CN201610933959.XA patent/CN106399025A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010881A (en) * | 2009-09-07 | 2011-04-13 | 广西工学院 | Thick mash alcohol fermentation process for mixing tapioca by using molasses hydrolyzate |
| CN102703518A (en) * | 2012-06-19 | 2012-10-03 | 姜蓉生 | Method for producing alcohol and cultivating edible fungus by solid fermentation through mixing manioc waste with treacle |
| CN104480147A (en) * | 2014-12-05 | 2015-04-01 | 姜蓉生 | Method for producing alcohol by combination of liquid fermentation and solid fermentation |
Non-Patent Citations (1)
| Title |
|---|
| 刘玉华等: "木薯与糖蜜混合发酵生产燃料乙醇的研究", 《轻工科技》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116103102A (en) * | 2021-11-10 | 2023-05-12 | 国投生物科技投资有限公司 | Feeding device and yeast wine mash conveying equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6937366B2 (en) | Continuous culture of black aspergillus and citric acid production method using it | |
| CN102286544B (en) | A kind of clean preparation method of starch base alcohol fuel | |
| CN101555497A (en) | Preparation method of citric acid fermentation solution | |
| CN102121034A (en) | Method for producing alcohol by using anaerobic effluent in water recycling way | |
| CN1966695A (en) | Circulation production process for alcohol with potatoes as main materials | |
| CN113135788B (en) | Production process for preparing organic fertilizer by mixing and fermenting Maotai-flavor distilled spirit vinasse and waste pit mud | |
| CN107058403A (en) | A kind of distiller's grains liquor is used for the method that full amylofermentation prepares ethanol | |
| CN108949489A (en) | A kind of liquid state fermentation method of highly acidity vinegar | |
| CN102010881B (en) | Thick mash alcohol fermentation process for mixing tapioca by using molasses hydrolyzate | |
| CN101070549A (en) | Mixed raw-material fermenting process for producing alcohol | |
| CN102703516B (en) | Alcohol cycle production technology by taking cassava and molasses as raw materials | |
| CN101974567A (en) | Method for ecologically producing alcohol by taking tuberous crop as raw material | |
| CN107557215B (en) | Mechanized Shaoxing yellow wine production process capable of recycling rice milk water completely | |
| CN103243123B (en) | A kind of high level transforms the New Cycle technique of potato vinasse | |
| CN103290070A (en) | Method for producing citric acid through continuous batch feeding fermentation | |
| CN106399025A (en) | Method for preparing ethyl alcohol through mixed fermentation of cassava and molasses | |
| CN114672521B (en) | Method for producing butyric acid by combined silage of vinasse and biogas slurry and application of method | |
| CN102747111A (en) | Process for producing citric acid with aerobic effluent serving as ingredient water | |
| CN101659970B (en) | Method for circularly treating avermectins waste ferment water and pleurin waste ferment water | |
| CN110452933A (en) | Method for producing ethanol | |
| CN103382491B (en) | Preparation method of citric acid | |
| CN212741403U (en) | Lost grain double-round fermentation humus preparation production system | |
| CN111690707A (en) | Method and production system for preparing humus and artificial aged pit mud by waste vinasse double-round fermentation | |
| CN101250557B (en) | Method for producing alcohol by starchy materials big tank and non-vector immobilized yeast continuous fermentation | |
| CN105087658A (en) | Method for producing alcohol by aid of yellow ginger hydrolysis waste water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170215 |
|
| WD01 | Invention patent application deemed withdrawn after publication |