CN109234322A - A kind of method that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting - Google Patents

A kind of method that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting Download PDF

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Publication number
CN109234322A
CN109234322A CN201811116938.4A CN201811116938A CN109234322A CN 109234322 A CN109234322 A CN 109234322A CN 201811116938 A CN201811116938 A CN 201811116938A CN 109234322 A CN109234322 A CN 109234322A
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water
rice powder
slurry
obtains
rice
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佟毅
罗虎
孙振江
许旺发
李永恒
梁坤国
赖铭雪
贾红娜
黄允升
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GUANGXI COFCO BIO-ENERGY Co Ltd
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GUANGXI COFCO BIO-ENERGY Co Ltd
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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
    • C12P7/10—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate substrate containing cellulosic material
    • 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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  • Engineering & Computer Science (AREA)
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  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Biotechnology (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

The invention discloses a kind of methods that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting.Method by the 1) extraction of haline water, 2) with full Rice Powder and haline water prepare slurry, 3) preparation of liquefied fermented glutinous rice, 4) preparation of mature mash, 5) with maturation mash through 100 DEG C of boilings, condense and obtain spirituosity liquid, then obtain the ethyl alcohol of 99% or more content through 78.3 DEG C of second distillations.The beneficial effects of the present invention are: the full Rice Powder alcohol prepared by fermenting of preparation method progress that 1. applications are of the invention, additional nutrient, nutritive salt etc. are not needed again substantially, the intractable problem of glucose industry waste water high salt is not only solved, the operating pressure of sewage treatment plant is alleviated；2. being back to full Rice Powder spice, fermentation, a water needed for reducing full starch slurry spice process by haline water；3. establishing sugar alcohol coproduction cleaned industry, energy-saving and emission-reduction are realized.

Description

A kind of method that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting
Technical field
The invention belongs to the technical fields of ethyl alcohol preparation, and specifically a kind of high-salt wastewater is for Rice Powder alcohol prepared by fermenting Method.
Background technique
With the development of fermentation technique, the mature technology of diversification raw material production alcohol is gradually formed.But with grain in storage for years water Rice is raw material, without shelling, directly crushes post-fermentation and prepares the research of alcohol and few.In addition starch sugar production process can generate A large amount of high-salt wastewater increases difficulty to plant effuent processing.By sugar alcohol coproduction promote alcoholic fermentation production, reduce at Originally, mitigate treatment pressure of sewage etc..So developing a kind of low cost, the full rice biomass to alcohol conversion process technology that easily runs, especially It is important.
Summary of the invention
The object of the present invention is to provide a kind of methods that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting.This method is benefit Ion-exchange desalinization wastewater when being cleaned with starch sugar production process intermediate ion exchange column is back to the slurry preparation of full rice, and participates in Full rice liquefaction, saccharification, fermentation process, reach the abilities such as stable fermenting and producing alcohol.
The technical scheme to solve the above technical problems is that
A kind of method that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting, operates according to the following steps:
1. a kind of method that haline water is used for full rice alcohol prepared by fermenting operates according to the following steps:
1) ion-exchange desalinization wastewater when starch sugar production process intermediate ion exchange column being taken to clean, obtains haline water, the height Contain Na in salt water+、K+、Ca2+、SO4 2-、Cl-Or NO3 -；Haline water and a water are by 1:1,1:2 or 1:3 mixture.
2) rice band shell is crushed, obtains full Rice Powder；Spice is carried out with mixture water respectively and obtains slurry, obtains slurry, The solid content of slurry is the 29~31% of slurry amount, is 5.4~5.6 with the pH that sulfuric acid adjusts slurry；Wherein mixed water is with high salt Water: water=1:1,1:2 or a 1:3.
3) amylase is added into the slurry of step 2), the amount by Rice Powder per ton addition amylase is 0.10kg, then Injection liquefaction directly is carried out using steam, at 87~90 DEG C, the time is 2~2.5h for condensing temperature control.Then through full flashing Temperature is down to 87 DEG C, and secondary flash cooling degree is down to 67 DEG C, finally carries out being cooled to 45 DEG C or so using recirculated cooling water, obtain Liquefied fermented glutinous rice.
4) liquefied fermented glutinous rice of step 3) is transported to fermentor, with the concentrated sulfuric acid adjust pH be 4.4~4.5, temperature 35 DEG C with Under, addition carbohydrase, by Rice Powder per ton addition carbohydrase amount be 0.7~0.9kg；The 18 of fermentation liquid quality is added simultaneously ~22% yeast wash, yeast wash are produced and are cultivated, and contain yeast number >=200,000,000/ml, the death rate≤3%；It is 32 in temperature Stirring at low speed under the conditions of~33 DEG C makes its fermentation, and 45~60h of continuing fermentation obtains mature mash.
5) the mature mash of step 4) is taken to obtain spirituosity liquid through 100 DEG C of boilings, condensation, then obtain through 78.3 DEG C of second distillations To the ethyl alcohol of 99% or more content.
The beneficial effects of the present invention are:
1. application preparation method of the invention carries out Rice Powder alcohol prepared by fermenting, do not need in advance to shell to rice Processing solves the problems, such as full rice fermentation high energy consumption.
2. being fermented by haline water and disposable be used in combination, haline water ferments for full rice, not only reduction pair The load of high-salt wastewater biochemical treatment also reduces the water (about 0.175~0.35m of part one time in rice slurry spice process3/ Ton slurry).
Both the above effect prepares alcohol technology in Rice Powder fermentation and belongs to pioneering, reduces the energy consumption and material of rice fermentation Consumption.
Specific embodiment
Below with reference to embodiment, the invention will be further described.
Embodiment 1
A kind of method that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting, operates according to the following steps:
1) ion-exchange desalinization wastewater when starch sugar production process intermediate ion exchange column being taken to clean, obtains haline water, the height Contain Na in salt water+、K+、Ca2+、SO4 2-、Cl-Or NO3 -；Haline water and a water are by 1:1 mixture.
2) rice band shell is crushed, obtains full Rice Powder；Spice is carried out with mixture water respectively and obtains slurry, obtains slurry, The solid content of slurry is the 29% of slurry amount, is 5.4 with the pH that sulfuric acid adjusts slurry；Wherein mixed water is haline water: a water =1:1.
3) amylase is added into the slurry of step 2), the amount by Rice Powder per ton addition amylase is 0.10kg, then Injection liquefaction directly is carried out using steam, and condensing temperature is controlled at 87 DEG C, time 2h.Then 87 are down to through full flashing temperature DEG C, secondary flash 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) liquefied fermented glutinous rice of step 3) is transported to fermentor, with the concentrated sulfuric acid adjust pH be 4.5, temperature 35 DEG C or less, add Add carbohydrase, the amount by Rice Powder per ton addition amylase is 0.10kg；18% distiller's yeast of fermentation liquid quality is added simultaneously Wine with dregs, yeast wash are produced and are cultivated, and contain yeast number >=200,000,000/ml, the death rate≤3%；It is low under the conditions of temperature is 32 DEG C Speed stirring makes its fermentation, and continuing fermentation 45h obtains mature mash.
5) the mature mash of step 4) is taken to obtain spirituosity liquid through 100 DEG C of boilings, condensation, then obtain through 78.3 DEG C of second distillations To the ethyl alcohol of 99% or more content.
Embodiment 2 (best)
A kind of method that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting, operates according to the following steps:
1) ion-exchange desalinization wastewater when starch sugar production process intermediate ion exchange column being taken to clean, obtains haline water, the height Contain Na in salt water+、K+、Ca2+、SO4 2-、Cl-Or NO3 -；Haline water and a water are by 1:2 mixture.
2) rice band shell is crushed, obtains full Rice Powder；Spice is carried out with mixture water respectively and obtains slurry, obtains slurry, The solid content of slurry is the 30% of slurry amount, is 5.6 with the pH that sulfuric acid adjusts slurry；Wherein mixed water is haline water: a water =1:2.
3) amylase is added into the slurry of step 2), the amount by Rice Powder per ton addition amylase is 0.10kg, then Injection liquefaction directly is carried out using steam, and condensing temperature is controlled at 90 DEG C, time 2.5h.Then it is down to through full flashing temperature 87 DEG C, secondary flash 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) liquefied fermented glutinous rice of step 3) is transported to fermentor, with the concentrated sulfuric acid adjust pH be 4.4, temperature 35 DEG C or less, add Add carbohydrase, the amount by Rice Powder per ton addition carbohydrase is 0.8kg；20% distiller's yeast of fermentation liquid quality is added simultaneously Wine with dregs, yeast wash are produced and are cultivated, and contain yeast number >=200,000,000/ml, the death rate≤3%；It is low under the conditions of temperature is 33 DEG C Speed stirring makes its fermentation, and continuing fermentation 60h obtains mature mash.
5) the mature mash of step 4) is taken to obtain spirituosity liquid through 100 DEG C of boilings, condensation, then obtain through 78.3 DEG C of second distillations To the ethyl alcohol of 99% or more content.
Embodiment 3
A kind of method that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting, operates according to the following steps:
1) ion-exchange desalinization wastewater when starch sugar production process intermediate ion exchange column being taken to clean, obtains haline water, the height Contain Na in salt water+、K+、Ca2+、SO4 2-、Cl-Or NO3 -；Haline water and a water are by 1:3 mixture.
2) rice band shell is crushed, obtains full Rice Powder；Spice is carried out with mixture water respectively and obtains slurry, obtains slurry, The solid content of slurry is the 31% of slurry amount, is 5.5 with the pH that sulfuric acid adjusts slurry；Wherein mixed water is haline water: a water =1:3.
3) it is 0.10kg that amylase is added into the slurry of step 2) by the amount of Rice Powder per ton addition amylase, then directly It connects and carries out injection liquefaction using steam, condensing temperature control is at 88 DEG C, time 2.2h.Then 87 are down to through full flashing temperature DEG C, secondary flash 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) liquefied fermented glutinous rice of step 3) is transported to fermentor, with the concentrated sulfuric acid adjust pH be 4.5, temperature 35 DEG C or less, add Add carbohydrase, the amount by Rice Powder per ton addition carbohydrase is 0.9kg；22% distiller's yeast of fermentation liquid quality is added simultaneously Wine with dregs, yeast wash are produced and are cultivated, and contain yeast number >=200,000,000/ml, the death rate≤3%；It is low under the conditions of temperature is 33 DEG C Speed stirring makes its fermentation, and continuing fermentation 50h obtains mature mash.
5) the mature mash of step 4) is taken to obtain spirituosity liquid through 100 DEG C of boilings, condensation, then obtain through 78.3 DEG C of second distillations To the ethyl alcohol of 99% or more content.

Claims (1)

1. a kind of method that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting, which is characterized in that operate according to the following steps:
1) ion-exchange desalinization wastewater when starch sugar production process intermediate ion exchange column being taken to clean, obtains haline water, the haline water In contain Na+、K+、Ca2+、SO4 2-、Cl-Or NO3 -；Haline water and a water are by 1:1,1:2 or 1:3 mixture；
2) rice band shell is crushed, obtains full Rice Powder；Spice is carried out with mixture water respectively and obtains slurry, obtains slurry, slurry Solid content be slurry amount 29~31%, with sulfuric acid adjust slurry pH be 5.4~5.6；Wherein mixed water is haline water: one Secondary water=1:1,1:2 or 1:3；
3) amylase is added into the slurry of step 2), the amount by Rice Powder per ton addition amylase is 0.10kg, then directly Injection liquefaction is carried out using steam, at 87~90 DEG C, the time is 2~2.5h for condensing temperature control；Then through full flashing temperature 87 DEG C are down to, secondary flash cooling degree is down to 67 DEG C, finally carries out being cooled to 45 DEG C or so using recirculated cooling water, be liquefied Wine with dregs；
4) liquefied fermented glutinous rice of step 3) is transported to fermentor, with the concentrated sulfuric acid adjust pH be 4.4~4.5, temperature 35 DEG C or less, add Add carbohydrase, the amount by Rice Powder per ton addition carbohydrase is 0.7~0.9kg；Simultaneously add fermentation liquid quality 18~ 22% yeast wash, yeast wash are produced and are cultivated, and contain yeast number >=200,000,000/ml, the death rate≤3%；Temperature be 32~ Stirring at low speed under the conditions of 33 DEG C makes its fermentation, and 45~60h of continuing fermentation obtains mature mash；
5) the mature mash of step 4) is taken to obtain spirituosity liquid through 100 DEG C of boilings, condensation, then contained through 78.3 DEG C of second distillations The ethyl alcohol of 99% or more amount.
CN201811116938.4A 2018-09-25 2018-09-25 A kind of method that high-salt wastewater is used for Rice Powder alcohol prepared by fermenting Pending CN109234322A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN107058401A (en) * 2017-06-22 2017-08-18 广西中粮生物质能源有限公司 A kind of method of cornstarch fermenting and producing alcohol
CN107058403A (en) * 2017-06-22 2017-08-18 广西中粮生物质能源有限公司 A kind of distiller's grains liquor is used for the method that full amylofermentation prepares ethanol
CN107988273A (en) * 2017-11-29 2018-05-04 广西中粮生物质能源有限公司 A kind of method for controlling rice liquefaction DE values
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
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6267309B1 (en) * 1993-12-23 2001-07-31 Controlled Environmental Systems Corporation Municipal solid waste processing facility and commercial ethanol production process
CN103642729A (en) * 2013-12-03 2014-03-19 湖北工业大学 Method for producing Bacillus subtilis for feeds by fermenting high-salt-content amino acid wastewater
CN107058401A (en) * 2017-06-22 2017-08-18 广西中粮生物质能源有限公司 A kind of method of cornstarch fermenting and producing alcohol
CN107058403A (en) * 2017-06-22 2017-08-18 广西中粮生物质能源有限公司 A kind of distiller's grains liquor is used for the method that full amylofermentation prepares ethanol
CN107988273A (en) * 2017-11-29 2018-05-04 广西中粮生物质能源有限公司 A kind of method for controlling rice liquefaction DE values
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
CN108103112A (en) * 2018-02-09 2018-06-01 广东中科天元新能源科技有限公司 A kind of technique that alcohol fuel is produced as raw material using cornstarch matter

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Application publication date: 20190118