CN1071697A - Alcohol waste liquid for sugar refinery recycle method - Google Patents
Alcohol waste liquid for sugar refinery recycle method Download PDFInfo
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- CN1071697A CN1071697A CN 92110207 CN92110207A CN1071697A CN 1071697 A CN1071697 A CN 1071697A CN 92110207 CN92110207 CN 92110207 CN 92110207 A CN92110207 A CN 92110207A CN 1071697 A CN1071697 A CN 1071697A
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Abstract
A kind of alcohol waste liquid for sugar refinery cyclic utilization method adopts the yeast through the alcohol waste liquid for sugar refinery domestication, and replaces portion water as the molasses thinner with alcohol waste liquid for sugar refinery, and the weight ratio of alcohol slops and water can be 2: 3～3: 2 in the thinner.Use this law recycle alcohol waste liquid for sugar refinery, can reduce by 40～60% discharging of waste liquid amount, alleviated the pollution of waste liquid to environment, reduced the energy consumption of concentration, and also correspondingly during the fermentation various raw material consumption amounts have been reduced, fermentation rate improves 1～3%, and glycerol content improves 80% than original in the waste liquid of discharge, brings considerable benefit to production.
Description
The invention belongs to the method for alcohol waste liquid for sugar refinery recycle in fermentation alcohol.
In order to realize comprehensive utilization, many sugar refinery all utilize molasses to produce alcohol.Producing the black liquid waste concentration that is produced in the alcohol process with molasses is 8～12BX, residual sugar 1.0～2.0%, PH ≈ 4.0, and contain the organism of elements such as 2～4% nitrogen, phosphorus, potassium and about 6%, one ton of alcohol of the every production in sugar refinery can produce 10～12 tons of above-mentioned alcohol slopss, and these waste liquids are discharged mostly and abandon it, not only wasted resource, and serious environment pollution.In recent years, more and more to the research work that disposes waste liquid.The factory that has adopts anaerobic process to handle.The factory that has utilizes waste liquid fermentative production single cell protein again, though suitable economic and social benefit is arranged, this method one-time investment is bigger, and benefit is also not ideal enough.The factory that also has adopts waste liquid is concentrated the method that afterfire is handled, and this method is more thorough to the processing of waste liquid, but because of waste liquid amount is big, it is big to concentrate power consumption, and cost is higher; Also the someone adopts the method for vinasse waste liquid total reflux to handle, but this method is used to reclaim the purpose that sugar refinery molasses alcohol waste liquid is difficult to reach thorough elimination discharging of waste liquid and cost reduction; The sugar refinery that also has attempts alcohol waste liquid for sugar refinery is all reclaimed in the circulation of adding Alcohol Production, but too much because of soluble solids in the liquid, yeast does not adapt to, and has influenced normal fermentation on the contrary.
The purpose of this invention is to provide a kind of equipment that needs to increase minute quantity, and to the little alcohol waste liquid for sugar refinery treatment process of other technical process change, adopt this method, the discharging of waste liquid amount is significantly reduced, and can improve economic benefit, social benefit and the environmental benefit of production.
The present invention realizes its purpose as follows: adopt the yeast through the alcohol waste liquid for sugar refinery domestication, and replace portion water dilution molasses with alcohol waste liquid for sugar refinery.The weight ratio of alcohol slops and water can be 2: 3～3: 2.
Adopt method of the present invention to utilize alcohol slops fermentative production alcohol again, only need in former technical process, to increase minute quantity equipment, can make the alcohol slops quantity discharged reduce 40～60%, reduced the energy consumption of concentration, and utilized the useful matter in the waste liquid because yeast during the fermentation, reduced and produced the raw material consumption of alcohol, and improved fermentation rate, brought considerable benefit to production.
Further specify the present invention below in conjunction with accompanying drawing:
Fig. 1 is an alcohol waste liquid for sugar refinery cyclic utilization method process flow sheet.
Enter 1＃The primary raw material of fermentation tank is through the yeast of domestication and the molasses of dilution; Yeast is cultivated domestication in inserting by equivalent alcohol effluent and water-reducible molasses culture medium earlier again after routine is cultivated, and adopts HCI that the pH value of culture medium is adjusted to 3.6～3.8. Yeast after the domestication inserts 1＃Fermentation tank; The molasses raw material of dilution can be: with the ratio of alcohol effluent and water be 2: 3～3: 2 mixed liquor as the diluent of molasses, in agitator tank, mix thoroughly with molasses and can Continuous Flow add to 1 when being 17～20BX to concentration＃Ferment in the fermentation tank, pH value is controlled at 3.9 in the tank. When 1＃When strength of fluid was down to 10～12BX in the fermentation tank, wine part can reach 4.5～6.0%, residual sugar 3～5%; This portioned product is imported 2＃During fermentation tank, simultaneously to 2＃Fermentation tank stream add by alcohol effluent and water ratio be 2: 3～3: 2 mixed liquor dilution and in agitator tank, mixed thoroughly, concentration is that the molasses liquid of 36～38BX continues fermentation, in the tank pH value is controlled at 3.8. When concentration in the tank was 16～18BX, wine part was 5～7%, and residual sugar is 5～7%. This portion of product is delivered to each later fermentation tank continue successively according to a conventional method fermentation, until send into the destilling tower distillation when obtaining ripe wine with dregs, obtain product alcohol and alcohol effluent again, waste liquid can be recycled and again delivers to agitator tank Substitute For Partial water dilution molasses. When the alcohol effluent hammer degree of being discharged by destilling tower reached 20BX, this waste liquid namely can not recycle use, and can only discharge or concentration. The alcohol effluent of recycle and reuse is if re-use after filtration better effects if.
Below be an embodiment of the inventive method:
1, No. 2 yeast of Cuba after the high density of the learning from else's experience domestication insert in the 250ML triangular flask, it is that the conventional substratum that contains the bent juice of rice of sugar 12% carries out 36 hours fermentation backs and inserts the 5000ML triangular flask that employing contains agar 2% and a small amount of other element and surplus, medium component is in the bottle: the molasses amount that contains sugar 50% is the 18%(weight ratio, down together), alcohol slops 40%, water 40%, surplus is that conventional production used element, regulating pH value with HCL is 3.7.Continue fermentation 36 hours in the immigration Ka Shi jar after fermentation in 36 hours, substratum and 5000ML triangular flask are together in jar.Output object inserts 1
#Fermentor tank.Send into 1 simultaneously
#The fermentation raw material of fermentor tank is via equivalent alcohol slops and water dilution and mixed thoroughly, concentration is the liquid molasses of 18BX.1
#PH value is controlled at 3.9 in the fermentor tank.When fermenting when pot liquid concentration is 11BX, wine part is 5.5%, and residual sugar is 4%; Output object delivers to 2
#Fermentor tank is simultaneously to 2
#The fermentor tank Continuous Flow add via equivalent alcohol slops and water dilution and mixed thoroughly, concentration is the liquid molasses of 35BX, pH value is controlled at 3.8 in jar, when fermentation is 17BX to jar interior concentration, wine part is 6%, residual sugar 6%, other fermentor tank continues fermentation after exporting to again, is sent to distillation tower when obtaining ripe wine with dregs to distill out alcohol, and the alcohol slops of discharge is pumped by dedicated pump and substitutes portion water dilution molasses and use.Because the recycling of waste liquid, the hammer degree of waste liquid is more and more higher, when hammer degree during above 20BX, waste liquid can not continue recycle and can only discharge abandon or concentration.But because the part recycle of waste liquid, make the discharging of waste liquid amount use ordinary method to reduce 40～60%, and because the acid in useful matter such as ammonia, phosphorus, potassium etc. and the waste liquid and sugar part are utilized more fully in the waste liquid, urea, phosphoric acid consumption 30～60% in the whole extraction alcohol flow process have been reduced, acid has also saved 20～40%, fermentation rate has improved 1～3%, glycerol content improved more than 80% than originally in the waste liquid, reached 1.5% for utilizing this waste liquid production glycerine that the favourable condition that reduces cost is provided.
Claims (2)
1, a kind of alcohol waste liquid for sugar refinery cyclic utilization method, recycle and reuse part alcohol slops is characterized in that adopting the yeast through the alcohol waste liquid for sugar refinery domestication, and replaces the thinner of portion water as molasses with alcohol waste liquid for sugar refinery.
2, alcohol waste liquid for sugar refinery cyclic utilization method as claimed in claim 1 is characterized in that the weight ratio of alcohol slops and water can be 2: 3～3: 2 in the thinner of molasses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110207 CN1035726C (en) | 1992-09-07 | 1992-09-07 | Circulation utilization method of alcohol waste liquid for sugar refinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110207 CN1035726C (en) | 1992-09-07 | 1992-09-07 | Circulation utilization method of alcohol waste liquid for sugar refinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1071697A true CN1071697A (en) | 1993-05-05 |
| CN1035726C CN1035726C (en) | 1997-08-27 |
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ID=4944675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92110207 Expired - Fee Related CN1035726C (en) | 1992-09-07 | 1992-09-07 | Circulation utilization method of alcohol waste liquid for sugar refinery |
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| Country | Link |
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| CN (1) | CN1035726C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086202C (en) * | 1999-10-14 | 2002-06-12 | 清华大学 | Technological method for producing alcohol by high-effective fermentation with waste molasses used as raw material |
| CN102703516A (en) * | 2012-06-08 | 2012-10-03 | 广西平果凯特生物化工有限公司 | Alcohol cycle production technology by taking cassava and molasses as raw materials |
| CN101906442B (en) * | 2009-06-08 | 2013-08-28 | 山东良友食品饮料有限公司 | Method for producing alcohol by using industrial waste sweet water |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8367274B2 (en) * | 2005-11-11 | 2013-02-05 | Tdk Corporation | Hologram recording material, and hologram recording medium |
-
1992
- 1992-09-07 CN CN 92110207 patent/CN1035726C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086202C (en) * | 1999-10-14 | 2002-06-12 | 清华大学 | Technological method for producing alcohol by high-effective fermentation with waste molasses used as raw material |
| CN101906442B (en) * | 2009-06-08 | 2013-08-28 | 山东良友食品饮料有限公司 | Method for producing alcohol by using industrial waste sweet water |
| CN102703516A (en) * | 2012-06-08 | 2012-10-03 | 广西平果凯特生物化工有限公司 | Alcohol cycle production technology by taking cassava and molasses as raw materials |
| CN102703516B (en) * | 2012-06-08 | 2014-07-30 | 广西平果凯特生物化工有限公司 | Alcohol cycle production technology by taking cassava and molasses as raw materials |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1035726C (en) | 1997-08-27 |
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Address after: 530003 Torch Road 1, Guangxi, Nanning Applicant after: Nanning Middle High Tech Co. Ltd. Address before: 531400, Guangxi, Pingguo County town, Ma Tau Street Xinxing County Government Applicant before: Environment Science & Technology Development Co., Pingguo County |
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