CN107058403A - A kind of distiller's grains liquor is used for the method that full amylofermentation prepares ethanol - Google Patents
A kind of distiller's grains liquor is used for the method that full amylofermentation prepares ethanol Download PDFInfo
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- CN107058403A CN107058403A CN201710481154.0A CN201710481154A CN107058403A CN 107058403 A CN107058403 A CN 107058403A CN 201710481154 A CN201710481154 A CN 201710481154A CN 107058403 A CN107058403 A CN 107058403A
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- 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
- C12P7/08—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
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- 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
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/14—Preparation of compounds containing saccharide radicals produced by the action of a carbohydrase (EC 3.2.x), e.g. by alpha-amylase, e.g. by cellulase, hemicellulase
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Abstract
It is used for the method that full amylofermentation prepares ethanol the invention discloses a kind of distiller's grains liquor.Method by the 1) extraction of corn clear liquid, 2) with full starch and corn clear liquid prepare slurry, 3) preparation of liquefied fermented glutinous rice, 4) preparation of ripe mash, 5) with ripe mash through 100 DEG C of boilings, condense and obtain spirituosity liquid, then obtain through 78.3 DEG C of second distillations the ethanol of content more than 99%.The beneficial effects of the invention are as follows：1. the preparation method of the application present invention carry out full amylofermentation prepare ethanol substantially need not additional nutrient, nutritive salt etc. again, solve full starch can not normal fermentation the problem of.2. being used alternatingly and being fermented by corn, full starch, maize alcohol stillage clear liquid is back to full amylofermentation, not only reduces the load of waste water evaporation and concentration, also reduces a water and quantity of steam needed for full starch slurry spice procedure division heating.
Description
Technical field
The invention belongs to technical field prepared by ethanol, specifically a kind of distiller's grains liquor prepares ethanol for full amylofermentation
Method.
Background technology
With the development of fermentation technique, the maturation process that diversification raw material produces alcohol is gradually formed.But using pure starch as
Fermenting raw materials lack nutrient necessary to yeast growth when preparing alcohol, and fermentation can not be normally carried out.If utilizing outer Ensure Liquid
Salt, the mode of trophic factors promote yeast growth, promote alcoholic fermentation to cause cost increase, cumbersome etc..So
A kind of low cost of exploitation, the full starch alcohol production Technology easily run, it is particularly important.
The content of the invention
It is used for the method that full amylofermentation prepares ethanol it is an object of the invention to provide a kind of distiller's grains liquor.This method is profit
It is prepared by the slurry that the clear liquid obtained after wine with dregs plate-frame filtering that given up with corn is back to full starch material, and participate in full starch liquefacation, saccharification,
Fermentation process, reliable nutrient, nutritive salt etc. are provided for yeast growth.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of distiller's grains liquor is used for the method that full amylofermentation prepares ethanol, is operated according to following steps：
1. the corn wine with dregs that gives up is passed through into plate-frame filtering, obtain the wet grain of corn and corn clear liquid, the temperature of corn clear liquid for 55~
65 DEG C, solid content is 2~3wt%.
2. by full starch and corn clear liquid in mass ratio 9:40~9:30 carry out mixture spice, obtain slurry.Slurry solid
Thing is 18~24wt.%, and temperature is 40~55 DEG C, and the pH for adjusting slurry with sulfuric acid is 5.2~5.6.
3. adding amylase into the slurry of step 2, added by the full starch of 0.15kg/t wet basis, then directly utilize steam
Injection liquefaction is carried out, condensing temperature control is at 87~90 DEG C, and the time is 2~2.5h.Then 87 DEG C are down to through full flashing temperature,
Secondary flash temperature is down to 67 DEG C, finally carries out being cooled to 45 DEG C or so using recirculated cooling water, obtains liquefied fermented glutinous rice.
4. the liquefied fermented glutinous rice of step 3 is transported to fermentation tank, and it is 4.2~4.5 to add concentrated sulfuric acid regulation pH, temperature is at 35 DEG C
Below, carbohydrase is added, addition is the full starch of 1.15kg/t wet basis；20~25% wine of fermentation liquid quality is added simultaneously
Cultivated in female wine with dregs, yeast wash production, it contains yeast number >=200,000,000/ml, the death rate≤3%.It is 32~33 DEG C of conditions in temperature
Stirring at low speed makes it ferment in lower, and 45~60h of continuing fermentation obtains ripe mash.
5. take the ripe mash of step 4 to obtain spirituosity liquid through 100 DEG C of boilings, condensation, then obtained through 78.3 DEG C of second distillations
To the ethanol of content more than 99%.
The beneficial effects of the invention are as follows：
1. the preparation method of the application present invention carry out full amylofermentation prepare ethanol substantially need not again outer Ensure Liquid it is first
Element, nutritive salt etc., solve full starch can not normal fermentation the problem of.
2. being used alternatingly and being fermented by corn, full starch, maize alcohol stillage clear liquid is back to full amylofermentation, not only subtracts
The load of waste water evaporation and concentration is lacked, also reducing part in full starch slurry spice and liquefaction process heats up a required water about
1.5m3Ton/ton the liquefied fermented glutinous rice of/ton slurry and quantity of steam about 0.05.
Both the above effect prepares alcohol technology in full amylofermentation and belongs to pioneering, solves full starch with a water spice
Can not normal fermentation the problem of.
Embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
A kind of distiller's grains liquor is used for the method that full amylofermentation prepares ethanol, is operated according to following steps：
1. the useless wine with dregs of corn is passed through into plate-frame filtering, the wet grain of corn and corn clear liquid are obtained, the temperature of corn clear liquid is 55 DEG C,
Solid content is 3wt%.
2. by full starch and corn clear liquid in mass ratio 9:40 carry out mixture spice, obtain slurry.Slurry solid content is
18wt.%, temperature is 40 DEG C, and the pH for adjusting slurry with sulfuric acid is 5.2.
3. adding amylase into the slurry of step 2, added by the full starch of 0.15kg/t wet basis, then directly utilize steam
Injection liquefaction is carried out, condensing temperature is controlled at 87 DEG C, and the time is 2h.Then 87 DEG C, secondary flash are down to through full flashing temperature
Temperature is down to 67 DEG C, finally carries out being cooled to 45 DEG C or so using recirculated cooling water, obtains liquefied fermented glutinous rice.
4. the liquefied fermented glutinous rice of step 3 is transported to fermentation tank, and it is 4.2 to add concentrated sulfuric acid regulation pH, temperature is in 35 DEG C, addition
Carbohydrase, addition is the full starch of 1.15kg/t wet basis；20% yeast wash of fermentation liquid quality is added simultaneously, and yeast wash is
Cultivated in production, it contains yeast number >=200,000,000/ml, the death rate≤3%.Stirring at low speed makes it in being under the conditions of 32 DEG C in temperature
Fermentation, continuing fermentation 45h obtains ripe mash.
5. take the ripe mash of step 4 to obtain spirituosity liquid through 100 DEG C of boilings, condensation, then obtained through 78.3 DEG C of second distillations
To the ethanol of content more than 99%.
Embodiment 2
A kind of distiller's grains liquor is used for the method that full amylofermentation prepares ethanol, is operated according to following steps：
1. the useless wine with dregs of corn is passed through into plate-frame filtering, the wet grain of corn and corn clear liquid are obtained, the temperature of corn clear liquid is 62 DEG C,
Solid content is 2.7wt%.
2. by full starch and corn clear liquid in mass ratio 9:36 carry out mixture spice, obtain slurry.Slurry solid content is
22.2wt.%, temperature is 55 DEG C, and the pH for adjusting slurry with sulfuric acid is 5.5.
3. adding amylase into the slurry of step 2, added by the full starch of 0.15kg/t wet basis, then directly utilize steam
Injection liquefaction is carried out, condensing temperature is controlled at 90 DEG C, and the time is 2.5h.Then 87 DEG C, secondary sudden strain of a muscle are down to through full flashing temperature
Steam temperature and be down to 67 DEG C, finally carry out being cooled to 45 DEG C or so using recirculated cooling water, obtain liquefied fermented glutinous rice.
4. the liquefied fermented glutinous rice of step 3 is transported into fermentation tank, and it is 4.4 to add concentrated sulfuric acid regulation pH, temperature below 33 DEG C,
Carbohydrase is added, addition is the full starch of 1.15kg/t wet basis；22% yeast wash of fermentation liquid quality, distiller's yeast are added simultaneously
Cultivated in wine with dregs production, it contains yeast number >=200,000,000/ml, the death rate≤3%.Stirring at low speed in being under the conditions of 33 DEG C in temperature
It is set to ferment, continuing fermentation 55h obtains ripe mash.
5. take the ripe mash of step 4 to obtain spirituosity liquid through 100 DEG C of boilings, condensation, then obtained through 78.3 DEG C of second distillations
To the ethanol of content more than 99%.
Embodiment 3
A kind of distiller's grains liquor is used for the method that full amylofermentation prepares ethanol, is operated according to following steps：
1. the useless wine with dregs of corn is passed through into plate-frame filtering, the wet grain of corn and corn clear liquid are obtained, the temperature of corn clear liquid is 65 DEG C,
Solid content is 2wt%.
2. by full starch and corn clear liquid in mass ratio 9:30 carry out mixture spice, obtain slurry.Slurry solid content is
24wt.%, temperature is 55 DEG C, and the pH for adjusting slurry with sulfuric acid is 5.6.
3. adding amylase into the slurry of step 2, added by the full starch of 0.15kg/t wet basis, then directly utilize steam
Injection liquefaction is carried out, condensing temperature is controlled at 90 DEG C, and the time is 2.5h.Then 87 DEG C, secondary sudden strain of a muscle are down to through full flashing temperature
Steam temperature and be down to 67 DEG C, finally carry out being cooled to 45 DEG C or so using recirculated cooling water, obtain liquefied fermented glutinous rice.
4. the liquefied fermented glutinous rice of step 3 is transported into fermentation tank, and it is 4.5 to add concentrated sulfuric acid regulation pH, temperature below 35 DEG C,
Carbohydrase is added, addition is the full starch of 1.15kg/t wet basis；25% yeast wash of fermentation liquid quality, distiller's yeast are added simultaneously
Cultivated in wine with dregs production, it contains yeast number >=200,000,000/ml, the death rate≤3%.Stirring at low speed in being under the conditions of 33 DEG C in temperature
It is set to ferment, continuing fermentation 60h obtains ripe mash.
5. take the ripe mash of step 4 to obtain spirituosity liquid through 100 DEG C of boilings, condensation, then obtained through 78.3 DEG C of second distillations
To the ethanol of content more than 99%.
Claims (1)
1. a kind of distiller's grains liquor is used for the method that full amylofermentation prepares ethanol, it is characterised in that operated according to following steps：
1) the useless wine with dregs of corn is passed through into plate-frame filtering, obtains the wet grain of corn and corn clear liquid, the temperature of corn clear liquid is 55~65 DEG C,
Solid content is 2~3wt%；
2) by full starch and corn clear liquid in mass ratio 9:40~9:30 carry out mixture spice, obtain slurry, slurry solid content is
18~24wt.%, temperature is 40~55 DEG C, and the pH for adjusting slurry with sulfuric acid is 5.2~5.6；
3) to step 2) slurry in add amylase, add, then directly entered using steam by the full starch of 0.15kg/t wet basis
Row injection liquefaction, condensing temperature control is at 87~90 DEG C, and the time is 2~2.5h.Then 87 DEG C, two are down to through full flashing temperature
Secondary flash distillation cooling degree is down to 67 DEG C, finally carries out being cooled to 45 DEG C or so using recirculated cooling water, obtains liquefied fermented glutinous rice；
4) by step 3) liquefied fermented glutinous rice be transported to fermentation tank, and it is 4.2~4.5 to add concentrated sulfuric acid regulation pH, temperature 35 DEG C with
Under, addition carbohydrase, addition be the full starch of 1.15kg/t wet basis；20~25% distiller's yeast of fermentation liquid quality is added simultaneously
Cultivated in wine with dregs, yeast wash production, it contains yeast number >=200,000,000/ml, the death rate≤3%；Under the conditions of temperature is 32~33 DEG C
Middle stirring at low speed makes it ferment, continuing fermentation 45-60h, obtains ripe mash；
5) take step 4) ripe mash obtain spirituosity liquid through 100 DEG C of boilings, condensation, then contained through 78.3 DEG C of second distillations
The ethanol of amount more than 99%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710481154.0A CN107058403A (en) | 2017-06-22 | 2017-06-22 | A kind of distiller's grains liquor is used for the method that full amylofermentation prepares ethanol |
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| CN201710481154.0A CN107058403A (en) | 2017-06-22 | 2017-06-22 | A kind of distiller's grains liquor is used for the method that full amylofermentation prepares ethanol |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108065026A (en) * | 2017-12-11 | 2018-05-25 | 广西中粮生物质能源有限公司 | A kind of preparation method of cereal feedstuff |
| CN108713728A (en) * | 2018-05-16 | 2018-10-30 | 安徽王仁和米线食品有限公司 | A kind of full fermentation type zero adds healthy cooking wine and preparation method thereof |
| CN109234322A (en) * | 2018-09-25 | 2019-01-18 | 广西中粮生物质能源有限公司 | A kind of method that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting |
| CN109266563A (en) * | 2018-09-28 | 2019-01-25 | 广西中粮生物质能源有限公司 | A kind of method that full Rice Production prepares distiller's yeast |
| CN114277063A (en) * | 2021-12-31 | 2022-04-05 | 宿州中粮生物化学有限公司 | Method for producing alcohol by using corn starch as raw material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108065026A (en) * | 2017-12-11 | 2018-05-25 | 广西中粮生物质能源有限公司 | A kind of preparation method of cereal feedstuff |
| CN108713728A (en) * | 2018-05-16 | 2018-10-30 | 安徽王仁和米线食品有限公司 | A kind of full fermentation type zero adds healthy cooking wine and preparation method thereof |
| CN109234322A (en) * | 2018-09-25 | 2019-01-18 | 广西中粮生物质能源有限公司 | A kind of method that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting |
| CN109266563A (en) * | 2018-09-28 | 2019-01-25 | 广西中粮生物质能源有限公司 | A kind of method that full Rice Production prepares distiller's yeast |
| CN114277063A (en) * | 2021-12-31 | 2022-04-05 | 宿州中粮生物化学有限公司 | Method for producing alcohol by using corn starch as raw material |
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Application publication date: 20170818 |