CN1035726C - Circulation utilization method of alcohol waste liquid for sugar refinery - Google Patents

Circulation utilization method of alcohol waste liquid for sugar refinery Download PDF

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Publication number
CN1035726C
CN1035726C CN 92110207 CN92110207A CN1035726C CN 1035726 C CN1035726 C CN 1035726C CN 92110207 CN92110207 CN 92110207 CN 92110207 A CN92110207 A CN 92110207A CN 1035726 C CN1035726 C CN 1035726C
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China
Prior art keywords
alcohol
waste liquid
sugar refinery
molasses
fermentation
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Expired - Fee Related
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CN 92110207
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Chinese (zh)
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CN1071697A (en
Inventor
黄敏
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Zhengyu High-New Tech Co Ltd Nanning
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Zhengyu High-New Tech Co Ltd Nanning
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Priority to CN 92110207 priority Critical patent/CN1035726C/en
Publication of CN1071697A publication Critical patent/CN1071697A/en
Application granted granted Critical
Publication of CN1035726C publication Critical patent/CN1035726C/en
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Abstract

The present invention relates to a method for circularly using waste liquid of the alcohol of a sugar refinery, and is characterized in that a ferment which is naturalized by the waste liquid of the alcohol of the sugar refinery is adopted, and partial water is replaced by the waste liquid of the alcohol of the sugar refinery to be used as a molasses diluting agent; in the diluting agent, the weight ratio of the waste liquid of the alcohol to water is 2: 3 to 3: 2. When the method of the present invention is used for circularly using the waste liquid of the alcohol of the sugar refinery, 40 to 60% of discharge capacity of the waste liquid can be reduced, the pollution of the waste liquid for environment is relieved, the energy consumption of concentration treatment is reduced, and the consumption of various raw materials in the process of fermentation is also reduced correspondingly; the fermentation rate is improved by 1 to 3%; compared with the original method, the glycerin content in the discharged waste liquid of the present invention is improved by 80%. The present invention brings appreciable benefit for production.

Description

Alcohol waste liquid for sugar refinery recycle method
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.
The primary raw material that enters the 1# fermentation tank is through the yeast of domestication and the molasses of dilution; Ferment The female access again after routine is cultivated by equivalent alcohol effluent and water-reducible molasses earlier cultivated Cultivate domestication in the base, and adopt 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: alcohol is useless The ratio of liquid and water be 2: 3~3: 2 mixed liquor as the diluent of molasses, stirring Mix thoroughly with molasses in the case and can Continuous Flow add to 1 when being 17~20BX to concentration#Fermentation Ferment in the tank, pH value is controlled at 3.9 in the tank. When 1#Strength of fluid falls in the fermentation tank During to 10~12BX, wine part can reach 4.5~6.0%, residual sugar 3~5%; With this part Product input 2#During fermentation tank, simultaneously to 2#Fermentation tank stream adds by alcohol effluent and water ratio Example be 2: 3~3: 2 mixed liquor dilution and in agitator tank, mixed thoroughly, concentration is 36 The molasses liquid of~38BX continues fermentation, and pH value is controlled at 3.8 in the tank. Dense in tank When degree was 16~18BX, wine part was 5~7%, and residual sugar is 5~7%. With this portion of product Deliver to each later fermentation tank and continue successively according to a conventional method fermentation, until obtain ripe wine with dregs The time send into again destilling tower distillation, obtain product alcohol and alcohol effluent, waste liquid is capable of circulation to be made With again delivering to agitator tank Substitute For Partial water dilution molasses. When the alcohol of being discharged by destilling tower When waste liquid hammer degree 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, and effect more Good.
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 18% (weight ratio, down together), alcohol slops 40%, water 40%, surplus is that conventional production used element, regulating pH value with HCL is that 3.7. continues fermentation 36 hours in the immigration Ka Shi jar after fermentation in 36 hours, and 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. alcohol waste liquid for sugar refinery cyclic utilization method, cultivate in it is characterized in that after routine is cultivated, inserting the yeast that sugar refinery utilizes molasses production alcohol to use always by equivalent alcohol slops and water-reducible molasses and tame, yeast after the domestication is together sent into each ferment tank again with equivalent alcohol and water-reducible molasses, send into distillation tower when obtaining ripe wine with dregs again and steam wine, the alcohol slops of output is used further to dilute molasses.
2. alcohol slops cyclic utilization method as claimed in claim 1, the alcohol slops that it is characterized in that wherein said recycle are the alcohol slopss that is no more than 20BX.
CN 92110207 1992-09-07 1992-09-07 Circulation utilization method of alcohol waste liquid for sugar refinery Expired - Fee Related CN1035726C (en)

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 CN1071697A (en) 1993-05-05
CN1035726C true CN1035726C (en) 1997-08-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1963668B (en) * 2005-11-11 2013-05-01 Tdk株式会社 Hologram recording material, and hologram recording medium

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1963668B (en) * 2005-11-11 2013-05-01 Tdk株式会社 Hologram recording material, and hologram recording medium

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Address after: 530003 Torch Road 1, Guangxi, Nanning

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