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Solid-liquid separation process of concentrated fermented rice liquid

A technology of concentrated mash fermentation and solid-liquid separation, applied in the fields of environmental protection and alcohol, can solve problems such as the pollution of distiller's grains, and achieve the effects of reducing production water, reducing equipment investment and saving production costs

Inactive Publication Date: 2003-02-26
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to seek a solid-liquid separation method for fermented distiller's grains, to solve the problem of distiller's grains pollution, to change passive treatment into active and effective comprehensive utilization, thereby reducing alcohol production costs and protecting the environment

Method used

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  • Solid-liquid separation process of concentrated fermented rice liquid
  • Solid-liquid separation process of concentrated fermented rice liquid

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Example 1: Corn is used as raw material for fermenting thick mash, and the conditions for membrane filtration of distiller's grains are: filter pore size: 0.8 micron; filter temperature: 98°C; working pressure: 0.1 MPa. The distiller's grains were reused in 4 batches to reach a dynamic balance; a total of 15 batches were filtered and reused, and the utilization rate of starch in each batch of alcohol thick mash fermentation was greater than or equal to 92.5%.

Embodiment 2

[0019] Example 2: Using cassava as raw material for fermenting thick mash, the conditions of distiller's grain liquid membrane filtration are: filter pore size: 1 micron; filter temperature: 80°C; working pressure: 0.08 MPa. The distiller's grains were reused in 3 batches to reach a dynamic equilibrium; a total of 15 batches were filtered and reused, and the utilization rate of starch in each batch of alcohol thick mash fermentation was greater than or equal to 93%.

Embodiment 3

[0020] Example 3: Dried melon and cassava were used as raw materials for fermenting concentrated mash, and the conditions for liquid membrane filtration of distiller's grains were: filter pore size: 2 microns; filter temperature: 90°C; working pressure: 0.15 MPa. The distiller's grains were reused after 5 batches to reach a balance; a total of 15 batches were filtered and reused, and the starch utilization rate of each batch of alcoholic thick mash fermentation was greater than or equal to 91%.

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Abstract

The present invention relates to alcohol, environment protection and other fields and is especially the solid-liquid separating membrane filtering of the distiller's grains after fermentation to prepare alcohol and the circulating reuse the filtrate as material charge water. The present invention solves the distiller's grains pollution problem by positive comprehensive treatment to reduce alcohol production cost and protect environment. The present invention has the advantages of zero drainage of distiller's grains, effective environment protection, reduced production cost, and finally raising the alcoholic degree of the highly fermented undecanted wine.

Description

technical field [0001] The invention relates to the fields of alcohol, environmental protection, etc., and specifically relates to the technology of one-time solid-liquid separation of distiller's grains produced after fermenting alcohol with thick mash through a membrane filtration technology, and the technology of recycling all the filtrate as feeding water for multiple use. Background technique [0002] Alcohol is a bulk fermentation product and plays an important role in the national economy. In recent years, due to the intensification of energy shortage and the intensification of the earth's "greenhouse effect", people's understanding of the disastrous consequences of rising temperatures has deepened and become more consistent. The use of methyl tert-butyl ether (MTBE) has been banned due to groundwater pollution and other health hazards, and the call for using alcohol as bioenergy to partially replace gasoline as liquid fuel and gasoline combustion accelerant has also ...

Claims

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Application Information

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IPC IPC(8): B01D61/00B01D71/02C12F3/08C12P7/06
CPCY02E50/17Y02E50/10
Inventor 石贵阳章克昌丁重阳张梁王玉红方亚叶
Owner JIANGNAN UNIV
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