CN1224715C - Method for producing alcohol by purified liquor fermentation - Google Patents
Method for producing alcohol by purified liquor fermentation Download PDFInfo
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- CN1224715C CN1224715C CNB031268927A CN03126892A CN1224715C CN 1224715 C CN1224715 C CN 1224715C CN B031268927 A CNB031268927 A CN B031268927A CN 03126892 A CN03126892 A CN 03126892A CN 1224715 C CN1224715 C CN 1224715C
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- solution
- saccharification
- distillation
- alcohol
- liquid
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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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Abstract
The present invention discloses a method for producing alcohol by a clear solution through fermentation. The present invention has the steps that (A), yam raw materials are crushed and are stirred; (B), the raw materials are boiled; (C), the raw materials are cooled in vacuum; (D), saccharifying enzyme is added into the raw materials for saccharification; (E), a saccharification solution carries out slag and solution separation; (F), the clear sugar solution is fermented; (G), the fermented solution carries out yeast separation; (H), the fermentation solution is distilled. When the clear solution of the present invention is used for fermenting and producing the alcohol, the fermentation period is shortened, the mash viscosity is reduced, the power consumption of liquid conveyance is reduced, the COD value and the BOD5 value of a discharged distillation solution are d, the discharged distillation solution can be recycled as process water, the environment pollution is reduced, and the effects of energy saving and environment protection are realized.
Description
Technical field
The present invention relates to a kind of method of purified liquor fermentation process of producing alcohol, specifically relate to a kind of method with potato raw material purified liquor fermentation process of producing alcohol.
Background technology
The starchy material that is used for Alcohol Production at present mainly contains potato class, Cereals class and wild plant etc., and China most of alcohol factory all adopts the raw material of potato class as Alcohol Production, as cassava, Ipomoea batatas, Chinese yam and bajiao banana taro etc.Its production technique is as shown in Figure 2: raw material pulverizing, spice, boiling, cooling add saccharifying enzyme saccharification, cooling, fermentation, distillation.Mash all contains a large amount of dregs in whole boiling, saccharification, fermentation, still-process, and viscosity is big, and the consumption of mash transmitting power is big, causes the obstruction of pipeline and equipment easily, and fermentation period is long, needs 60 hours approximately, and the discharging of waste liquid amount is big.Slops contains the about 45000～50000mg/L of COD, BOD
5About 27000～35000mg/l contains solid thing about 6～8%; Waste liquid is through anaerobically fermenting biogas, and is aerobic again or be exposed in the air and handle, and is difficult to reach discharging standards, and environment is polluted greatly.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of method of purified liquor fermentation process of producing alcohol is provided, can shorten fermentation period, cut down the consumption of energy, reduce environmental pollution.
The method of purified liquor fermentation process of producing alcohol of the present invention comprises the steps:
(A) pulverizing of potato raw material, spice, the spice process adds the Ye Huamei of 15～20u/g;
(B) boiling of raw material is that spice is preheated to 50～60 ℃, and pump to Jet liquefier is heated to 102～105 ℃ then, keeps more than 90 minutes;
(C) vacuum cooling;
(D) add saccharifying enzyme, saccharification;
(E) saccharification liquid being carried out slag liquid separates;
(F) pellucid syrup fermentation;
(G) fermenting-ripening liquid carries out yeast separation;
(H) fermented liquid distillation.
Wherein, the distillation of step H is a differential distillation, promptly utilizes pressure difference between topping still and rectifying tower or temperature head to carry out the energy lotus root and closes, and utilizes the tower still reboiler that distillates alcohol steam indirect heating cryogenic columns of high temperature tower.
Fermented liquid is after distillation, and partly wine lees liquor is sent to step e, cleans the saccharification slag of separating, and the saccharification slag is cleaned the back to be separated, and is sent to boiler combustion, and slag washing water is sent to as the technology water of sizing mixing.Another part wine lees liquor is made the technology water coolant after anaerobically fermenting, aerobic aeration are handled.
The boiling of the raw material described in the step B may further comprise the steps:
(B1) spice is preheated to 50～60 ℃;
(B2) spice pump to Jet liquefier is heated to 102～105 ℃, keeps more than 90 minutes.
After the described step G yeast separation, drying is made fodder yeast.
Adopt the method for purified liquor fermentation process of producing alcohol of the present invention, key is that the saccharification liquid after the saccharification is carried out slag liquid to be separated, and removes the solid dregs in the mash, utilizes the pellucid syrup fermentation, thereby reached following beneficial effect: fermentation period shortens greatly, needs 25～30 hours approximately; Mash viscosity reduces greatly, has reduced the power consumption that liquid is carried, problems such as the stifled machine of minimizing equipment.The present invention carries out yeast separation to fermenting-ripening liquid, further reduces final distillation and discharges useless viscosity and denseness, COD and BOD
5Value all greatly reduces, the about 8000～9000mg/L of COD content, BOD
5About 4000～the 4500mg/L of content contains solid thing＜1%.Its effluent discharge need not discharged outside the factory, and partly the technology water is made in reuse, and another partly makes the technology water coolant after the biological treatment of two steps, and pollution load only is equivalent to 1/30 of traditional technology, reaches the purpose of cleaner production alcohol.The present invention simultaneously adopts differential distillation, economizes on gas more than 40% than traditional air distillation, reaches purpose of energy saving.The characteristics that the present invention produces in conjunction with potato raw material are sent boiler combustion with the waste residue after the liquid glucose processing, produce steam; Yeast separation in the fermenting-ripening liquid is come out, and the high protein feed yeast is made in oven dry, turns waste into wealth, and has both reduced environmental pollution, has also improved the Alcohol Production benefit.
Description of drawings
Fig. 1 is a potato raw material purified liquor fermentation process of producing alcohol schema.
Fig. 2 is a prior art potato raw material fermentative production alcohol schema.
Embodiment
As shown in Figure 1, after potato raw material is pulverized, add the Ye Huamei of 15～20u/g in the spice process, through being preheated to 50～60 ℃, pump is to Jet liquefier, and is heated to 102～105 ℃.In raw material and Ye Huamei moment, owing to be rapidly heated suddenly, finished expanded, the gelatinization and the liquefaction of potato starch, and kept more than 90 minutes at 102～105 ℃ by Jet liquefier.Subsequently, be cooled to 58～60 ℃, the saccharifying enzyme saccharification of adding 150u/g 20～22 hours, the DE value reaches about 96%.The slag liquid that carries out converted mash with whizzer separates, and isolates pellucid syrup.The sugar filter residue is with after the slops washing, press dry to be sent to boiler and coal is mixed together burning; The technology water is made in the slag washing water reuse.
Pellucid syrup send fermentation procedure adding yeast to carry out zymamsis.After about 25～30 hours maturations of fermenting, fermented liquid is carried out centrifugation, the yeast centrifugation is come out, the high protein feed yeast is made in oven dry.The pure mellow wine seminal fluid is sent to distillation process, adopts the differential distillation technology to distill out alcohol.The distillation effluent discharge is limpid than traditional technology, the about 8000～9000mg/L of COD content, BOD
5About 4000～the 4500mg/L of content contains solid thing＜1%.Slops is not directly discharged outside the factory, and wherein 80% waste liquid is back to the sugared filter residue of washing, and slag washing water reuse is once more made the technology water; 20% waste liquid goes anaerobic treatment, and aerobic treatment is again made the technology water coolant after up to standard, and accomplishing does not have discharging of waste liquid, reaches the purpose of cleaner production alcohol.
The differential distillation that the present invention adopts, be to utilize pressure difference between distillation tower or temperature head to carry out the energy lotus root to close, promptly utilize the tower still reboiler that distillates alcohol steam indirect heating cryogenic columns of high temperature tower, both made full use of heat energy, save again and distillate the required water coolant of alcohol steam condensation, thereby reach the purpose of energy-saving distilling.Compare with traditional air distillation, can economize on vapour more than 40%, 4.2～4.3 tons of alcohol consumption steam per ton than 6.5～7.5 tons of traditional technology, are economized on 2.3～3 tons of vapour.
Claims (4)
1, a kind of method of purified liquor fermentation process of producing alcohol in turn includes the following steps:
(A) pulverizing of potato raw material, spice, the spice process adds the Ye Huamei of 15～20 μ/g;
(B) boiling of raw material, promptly spice is preheated to 50～60 ℃, and pump to Jet liquefier is heated to 102～105 ℃ then, keeps more than 90 minutes;
(C) vacuum cooling to 58～60 ℃;
(D) saccharifying enzyme, saccharification 20～22 hours;
(E) saccharification liquid being carried out slag liquid separates;
(F) pellucid syrup fermentation;
(G) fermenting-ripening liquid carries out yeast separation;
(H) distillation of fermented liquid.
2, the method for the described purified liquor fermentation process of producing alcohol of claim 1, it is characterized in that: the distillation of step H is a differential distillation, promptly utilize pressure difference between topping still and rectifying tower or temperature head to carry out the energy lotus root and close, utilize the tower still reboiler that distillates alcohol steam indirect heating cryogenic columns of high temperature tower.
3, the method for the described purified liquor fermentation process of producing alcohol of claim 2, it is characterized in that: fermented liquid is after distillation, partly wine lees liquor is sent to the saccharification slag that the clear slag washing liquid of step e is separated, and it is separated and be sent to boiler combustion that the saccharification slag is cleaned the back, and slag washing water is sent to as the technology water of sizing mixing; Another part wine lees liquor is made the technology water coolant after anaerobically fermenting, aerobic aeration are handled.
4, the method for the described purified liquor fermentation process of producing alcohol of claim 1 is characterized in that: after the described step G yeast separation, drying is made fodder yeast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031268927A CN1224715C (en) | 2003-06-17 | 2003-06-17 | Method for producing alcohol by purified liquor fermentation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031268927A CN1224715C (en) | 2003-06-17 | 2003-06-17 | Method for producing alcohol by purified liquor fermentation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1473937A CN1473937A (en) | 2004-02-11 |
| CN1224715C true CN1224715C (en) | 2005-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031268927A Expired - Fee Related CN1224715C (en) | 2003-06-17 | 2003-06-17 | Method for producing alcohol by purified liquor fermentation |
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| Country | Link |
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| CN (1) | CN1224715C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195836B (en) * | 2008-01-04 | 2011-04-06 | 广西明阳生化科技股份有限公司 | Novel technique for producing manioc waste ethanol |
| CN101676397B (en) * | 2008-09-19 | 2011-12-14 | 中粮集团有限公司 | Method for preparing alcohol by utilizing potato materials |
| CN101676398B (en) * | 2008-09-19 | 2011-11-30 | 中粮集团有限公司 | Method for preparing alcohol by utilizing potato materials |
| WO2013139027A1 (en) * | 2012-03-22 | 2013-09-26 | 天津大学 | Method for producing alcohol from potato materials |
| CN103382489A (en) * | 2013-08-08 | 2013-11-06 | 河南天冠企业集团有限公司 | Method for producing alcohol through liquor fermentation |
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2003
- 2003-06-17 CN CNB031268927A patent/CN1224715C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1473937A (en) | 2004-02-11 |
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