Alcohol crossed circle manufacturing technique with potatoes as the main materials

A production process, a double-circle technology, applied in the direction of biofuels, fermentation, etc., can solve the problems of difficult and thorough wastewater treatment, the use of industrial production scale, limited cycle batches, etc., to reduce floor space and fixed asset investment, good Economic benefits, the effect of reducing production costs

Active Publication Date: 2008-02-27
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems of the method of producing biogas by anaerobic fermentation first and then aeration and aerobic treatment are that it occupies a large area and requires high investment; As high as about 20 yuan, the third is that the treatment of wastewater is difficult to complete, and the discharged wastewater COD cr Still around 500mg/L
There is also a process of using distillation waste liquid full-cycle batching, but because the distillation waste mash afte

Method used

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  • Alcohol crossed circle manufacturing technique with potatoes as the main materials

Examples

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Comparison scheme
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Example Embodiment

[0023] Example one

[0024] The alcohol double ring production process of the present invention using potatoes as the main raw material adopts the following process steps:

[0025] Take 100g of sweet potato flour, add 200ml of the last batch of anaerobic fermentation digestion solution, add 0.07ml of high-temperature resistant α-amylase, stir evenly, heat, and liquefy at 95°C for 60 minutes; quickly cool to 58°C, add the last batch of distillation waste mash 100ml, after mixing, add 0.15ml of glucoamylase (common commercial glucoamylase), keep it at 62℃ and saccharify for 0.5hr, after saccharification, cool to 30℃, connect with 10% expanded alcohol yeast, culture and ferment at constant temperature for 64hr; fermentation is over, The volume of the mature fermentation broth is 343ml, and the alcohol concentration is 9.2% (v / v); 32ml (95.2%v / v) of finished alcohol is obtained by distillation, and 310ml of distillation waste mash is obtained. Take out 100ml of waste mash as the next ...

Example Embodiment

[0026] Example two

[0027] The alcohol double ring production process of the present invention using potatoes as the main raw material adopts the following process steps:

[0028] Take 2000g of cassava flour, add 4000ml of the last batch of anaerobic fermentation digestion liquid, add 1.2ml of high-temperature resistant α-amylase, stir evenly and heat, keep at 95℃ for 50 minutes; quickly cool down to 62℃, add the last batch of distillation waste mash 2000ml, add 2.4ml glucoamylase (common commercial glucoamylase), keep saccharification at 62℃ for 0.5hr, after saccharification, cool down to 30℃, insert 8% expanded alcohol yeast constant temperature culture fermentation, fermentation 60hr; fermentation is over, mature fermentation The liquid volume is 6850ml and the alcohol concentration is 11.9% (v / v); 740ml (96% v / v) of finished alcohol is obtained by distillation, and 6200ml of waste mash is distilled. Set aside 2000ml waste mash as the next batch of water for saccharification a...

Example Embodiment

[0029] Example three

[0030] The alcohol double ring production process of the present invention using potatoes as the main raw material adopts the following process steps:

[0031] Take 9000kg of cassava flour and add 24m of the last batch of digestive juice 3 , Add 3.2 liters of high-temperature resistant α-amylase, stir evenly and then heat, keep at 95℃ and liquefy for 60 minutes; quickly cool down to 65℃, add 4m of the last batch of distilled mash 3 , Add 9 liters of glucoamylase (common commercial glucoamylase), keep saccharification at 62°C for 0.45hr, cool to 28°C after saccharification, insert 8% expanded alcohol yeast for fermentation, and ferment for 66hr; after fermentation, the volume of mature fermentation broth is 35.6m 3 , The alcohol concentration is 10.3% (v / v); 3040L of finished alcohol (96% v / v) is obtained by distillation, and 32.6m of waste mash is distilled 3 ,Separate mud and sand through sedimentation tank, leaving 4m 3 The waste mash is used as the water ...

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Abstract

The invention relates to an alcohol dual manufacturing technique with tuber as the main material in the alcohol fermentation industry technique, which comprises the following steps: mixing starch and the last anaerobic fermentation digestive liquid; heating, liquefying and reducing the temperature by adding maxilase and mixing homogeneously; adding the last distillery slop; saccharifying by adding glucoamylase; reducing the temperature; inoculating the extended culture distillery yeast; culturing in the constant temperature; acquiring the product alcohol by distilling; using distillery slop as the water for the next saccharifying and adjusting acid; cooling the rest slop and inoculating the last activated sludge in order to produce methane with anaerobic fermentation; recovering the activated sludge and digestive liquid by separating anaerobic fermentation liquid; making the digestive liquid back to the proportioning procedure as the technology water; circulating sequentially. The invention only needs a step anaerobic fermentation of distillery slop, which reduces investment of accommodation area and capital assets, can circulate anaerobic fermentation digestive liquid, achieves zero discharge of the wastewater from fermentation, achieves the circulation of the water resource and reduces the cost of alcohol.

Description

technical field [0001] The invention relates to an alcohol double-circle production process using potatoes as the main raw material, and belongs to the technical field of fermented alcohol industry. Background technique [0002] Fermentation of starchy raw materials to produce alcohol is one of the main methods of alcohol production. In the traditional fermentation process of starchy raw materials to produce alcohol, starchy raw materials are crushed, mixed with water, liquefied and saccharified, and then inoculated with alcoholic yeast for fermentation (as introduced in the book "Alcohol Industry Handbook", edited by Zhang Kechang, etc., Light Industry Press ). The traditional fermentation production process averages 12 to 15 tons of waste mash per ton of alcohol, and the waste mash COD cr As high as 40,000-50,000 mg / L or more, it not only causes serious water pollution, but also causes a lot of waste of resources. [0003] The current treatment methods of alcohol produc...

Claims

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Application Information

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IPC IPC(8): C12P7/06
CPCY02E50/17Y02E50/10
Inventor 毛忠贵张建华
Owner JIANGNAN UNIV
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