Method for producing alcohol by molasses

A technology of molasses and alcohol, applied in the direction of biofuel, fermentation, etc., to achieve the effect of obvious effect, weakening acidity and improving alcohol production efficiency

Inactive Publication Date: 2013-03-27
GUANGXI PINGXIANG FENGHAO ALCOHOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the application of domestic enzyme preparations is limited to reducing the residual sugar content of fermentation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for producing alcohol from molasses is characterized in that it comprises the steps:

[0031] (1) To dilute the molasses for the first time, first prepare the raw molasses and nutrient salt, then add the nutrient salt to the raw molasses, then add water to dilute the molasses to a sugar hammer degree of 58BX;

[0032] (2) To prepare the enzyme preparation, first measure 30L of water, add raw molasses to the water to obtain a molasses solution with a sugar viscosity of 40BX, then put the enzyme preparation into the molasses solution and stir and mix evenly to obtain an enzyme preparation solution;

[0033] (3) adding the enzyme preparation prepared in step (2) to the diluted molasses in step (1) and mixing to obtain a molasses solution containing the enzyme preparation;

[0034] (4) Add water to dilute the molasses solution in step (3) until the sugar Brix is ​​38BX;

[0035] (5) Preparation of distiller's mash: Dilute molasses and add water until the sugar bri...

Embodiment 2

[0047] A method for producing alcohol from molasses is characterized in that it comprises the steps:

[0048] (1) To dilute the molasses for the first time, first prepare the raw molasses and nutrient salt, then add the nutrient salt to the raw molasses, then add water to dilute the molasses to a sugar hammer degree of 60BX;

[0049] (2) To prepare the enzyme preparation, first measure 30L of water, add raw molasses to the water to obtain a molasses solution with a sugar viscosity of 40BX, then put the enzyme preparation into the molasses solution and stir and mix evenly to obtain an enzyme preparation solution;

[0050] (3) adding the enzyme preparation prepared in step (2) to the diluted molasses in step (1) and mixing to obtain a molasses solution containing the enzyme preparation;

[0051] (4) Add water to dilute the molasses solution in step (3) until the sugar Brix is ​​42BX;

[0052] (5) Preparation of distiller's mash: Dilute the molasses and add water until the sugar...

Embodiment 3

[0064] A method for producing alcohol from molasses is characterized in that it comprises the steps:

[0065] (1) To dilute the molasses for the first time, first prepare the raw molasses and nutrient salt, then add the nutrient salt to the raw molasses, then add water to dilute the molasses to a sugar hammer degree of 62BX;

[0066] (2) To prepare the enzyme preparation, first measure 30L of water, add raw molasses to the water to obtain a molasses solution with a sugar viscosity of 40BX, then put the enzyme preparation into the molasses solution and stir and mix evenly to obtain an enzyme preparation solution;

[0067] (3) adding the enzyme preparation prepared in step (2) to the diluted molasses in step (1) and mixing to obtain a molasses solution containing the enzyme preparation;

[0068] (4) add water to dilute the molasses solution in step (3) until the sugar brix is ​​46BX;

[0069] (5) Preparation of distiller's mash: Dilute molasses and add water until the sugar bri...

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PUM

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Abstract

The invention discloses a method for producing alcohol by molasses, which comprises the following steps: (1) diluting molasses for the first time; (2) preparing an enzyme preparation; (3) adding the enzyme preparation prepared in step (2) into the diluted molasses in step (1), mixing to prepare a molasses solution containing the enzyme preparation; (4) diluting the molasses solution in step (3) with water to obtain a brix of 38 BX-46 BX; (5) preparing distiller's yeast mash; (6) performing mixed fermentation of the diluted molasses solution prepared in step (4) and the distiller's yeast mash prepared in step (5) to obtain matured mash; (7) distilling the matured mash to obtain alcohol. By adding the enzyme preparation during the fermentation process, the method for producing alcohol by molasses of the invention saves production cost, increases the liquor content of the fermented matured mash, reduces the residual sugar content of the matured mash, reduces the difficulties for alcohol distillation and waste water treatment, is safer in operation when compared with traditional methods with sulfuric acid addition, and reaches the purposes of energy saving, emission reduction, and consumption reduction.

Description

technical field [0001] The invention relates to a method for producing alcohol, in particular to a method for producing alcohol from molasses. Background technique [0002] At present, the traditional fermentation process of alcohol production using molasses as raw material in China requires the addition of sulfuric acid to reduce the pH of the fermented mash from 4.8 to 3.4-3.8 or the addition of antibacterial drugs such as clarendazim and penicillin during the fermentation process of alcoholic yeast. Inhibit the growth of miscellaneous bacteria, make the yeast suitable for growth and reproduction during the fermentation process, and fully utilize the sugar in the molasses to convert it into ethanol (alcohol). Using acid to lower the pH to inhibit bacteria not only has incomplete antibacterial effect and affects alcohol fermentation, but also increases the processing capacity and difficulty of molasses sewage treatment due to the serious corrosion of equipment due to the ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/06
CPCY02E50/17Y02E50/10
Inventor 凌长清王文坚任志远黄衡
Owner GUANGXI PINGXIANG FENGHAO ALCOHOL
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