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A kind of separation method of alcohol fermentation mash

A technology of alcohol fermentation mash and separation method, which is applied in the field of separation of alcohol fermentation mash, which can solve the problems of low separation efficiency, difficulty in solid-liquid separation, deepening color of DDGS feed, etc., and achieve low ash content and reduce production cost

Active Publication Date: 2011-11-30
安徽中粮生化燃料酒精有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to overcome the difficulty of solid-liquid separation in the separation method of the alcohol fermentation mash of the prior art, and the defect that the separation efficiency is low, simultaneously add sodium hydroxide and wherein the acid reaction exothermic feed liquid temperature rises, pH The increase of the value will accelerate the Maillard reaction to produce a large amount of pigment, which will lead to the deepening of the color of DDGS feed, and provide a separation method of alcohol fermentation mash that can not only effectively separate the alcohol fermentation mash but also improve the quality of the feed

Method used

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  • A kind of separation method of alcohol fermentation mash
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Examples

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Embodiment 1

[0044] This embodiment is used to illustrate the separation method of the alcohol fermentation mash provided by the present invention.

[0045] (1) 500ml alcohol fermentation mash [thalline concentration is 5.32% (m / v)] is placed in reaction tank.

[0046] (2) dissolving an anionic polyacrylamide flocculant with a molecular weight of 15 million in water to obtain a solution with a concentration of 0.2% by mass to volume; and adding the aqueous flocculant solution to the alcoholic fermentation mash at 70°C, Based on per cubic meter of fermentation broth, the amount of the flocculant aqueous solution (12.5ml) was such that the amount of flocculant was 50ppm, and stirred and mixed for 10 minutes.

[0047] (3) The mixed liquor that step (2) obtains is inserted in the plate-and-frame filter and filtered, and the filtration speed of the clear liquid is 15s / 100ml, until the fermented mash enters, the turbidity of the clear liquid obtained is 534NTU.

[0048] (4) the filter cake obta...

Embodiment 2

[0050] This embodiment is used to illustrate the separation method of the alcohol fermentation mash provided by the present invention.

[0051] (1) 500ml alcohol fermentation mash [thalline concentration is 5.32% (m / v)] is placed in reaction tank.

[0052] (2) dissolving an anionic polyacrylamide flocculant with a molecular weight of 15 million in water to obtain a solution with a concentration of 0.2% by mass to volume; and adding the aqueous flocculant solution to the alcoholic fermentation mash at 70°C, On the basis of per cubic meter of fermentation broth, the amount of the flocculant aqueous solution (25ml) is such that the amount of flocculant is 100ppm, and stirred and mixed for 10 minutes.

[0053] (3) The mixed liquor that step (2) obtains is inserted in the plate-and-frame filter and filtered, and the filtration speed of the clear liquid is 12s / 100ml, and until the fermented mash enters, the turbidity of the clear liquid obtained is 520NTU.

[0054] (4) the filter c...

Embodiment 3

[0056] This embodiment is used to illustrate the separation method of the alcohol fermentation mash provided by the present invention.

[0057] The alcohol fermentation mash was separated according to the method of Example 1, the difference was that the amount of the flocculant aqueous solution (5ml) made the amount of the flocculant to be 20ppm on the basis of per cubic meter of fermented liquid. The filtration rate of the clear liquid is 29s / 100ml, and the turbidity of the obtained clear liquid is 660NTU. The filter cake was dried at 90° C. to obtain an ash content of 2.87% (m / m) and a protein content of 27.29% (m / m) in the feed.

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Abstract

The invention discloses a separation method of an alcoholic fermented liquor, comprising the steps of mixing the alcoholic fermented liquor with a flocculating agent solution and processing the mixture according to any one of the following ways: way 1) standing the mixture for layering to obtain supernatant liquor and subnatant bacterial body fluid, discharging the supernatant liquor and carrying out condensation, and carrying out solid-liquid separation on the subnatant bacterial body fluid; and way 2) directly carrying out solid-liquid separation on the mixture. The flocculating agent is a substance that can flocculate and or precipitate thalline in the alcoholic fermented liquor. Compared with the present common separation methods, the method overcomes that normal production can not be satisfied due to difficult direct filtering, increasement of ash content and deepending of color in the subsequent forage, reduction of the quality of the forage and extremely high cost when using sodium hydroxide to raise PH value existing in the prior art, and is simple and practical and has low investment of device. Compared with the prior art, the method can reduce cost by about 70%.

Description

technical field [0001] The invention relates to a method for separating alcohol fermented mash. Background technique [0002] Alcohol is an important basic industrial raw material, which is widely used in medicine, daily chemicals, ink coatings, chemical intermediates, etc. It can also be used as alcohol base, leaching agent, detergent, solvent, surfactant, etc. The main source of industrial alcohol is oil obtained by cracking long-chain organic compounds under catalyst and high temperature conditions. Recently, international crude oil prices have soared. Energy issues are closely related to the national economy and people's livelihood. The development of alternative energy is receiving more and more attention. As the world's oil resources are decreasing year by year and are non-renewable, alcohol fuel has become one of the best alternative energy sources. [0003] Alcohol, commonly known as fuel ethanol, is produced by fermentation of wheat, corn, sorghum, potato or plant ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C31/08C07C29/74A23K1/06A23K10/38
CPCY02P60/87
Inventor 周永生熊结青宋云飞周勇何明霞
Owner 安徽中粮生化燃料酒精有限公司
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