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Method for preparing ethyl alcohol with corn fermentation

A corn and ethanol technology, applied in microorganism-based methods, fermentation, biochemical equipment and methods, etc., can solve problems such as excessive corn husks, and achieve the effects of full yeast cells, suitable temperature and stable yield

Inactive Publication Date: 2008-12-10
山东博润实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for producing ethanol by fermenting corn, using wet crushing, extracting germ, and then carrying out fermentation to produce ethanol, which belongs to clean production and has no pollution. Fermentation through thick mash saves water Reduce energy consumption, reduce production costs, and solve the problem of excessive corn husks in the process of wet crushing corn by using colloid mills, thereby increasing distillation efficiency and improving yield and quality

Method used

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  • Method for preparing ethyl alcohol with corn fermentation
  • Method for preparing ethyl alcohol with corn fermentation
  • Method for preparing ethyl alcohol with corn fermentation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] 1. Purification process

[0063] The raw corn is purified by the induced draft fan, the initial cleaning sieve, and the cylinder cleaning sieve, and then transferred to the soaking tank.

[0064] 2. Soaking process

[0065] Send water to No. 1 soaking tank, adjust the ratio of corn to delivery water between 1:3, and the corn delivery speed is 45T / h. After adding, start the circulation pump of No. 1 soaking tank to circulate the soaking water. The temperature is controlled at 50°C. After 8 hours, pour the soaking water in the No. 1 soaking tank into the No. 2 soaking tank, then add corn to the No. 2 soaking tank, and add water to the No. 2 soaking tank at the same time. The temperature of the No. 1 soaking tank is controlled at 53°C. To maintain the liquid level, after adding corn and water to No. 2 soaking tank, start the soaking water circulating pump, open the condensate valve and steam valve of the corn circulating water heat exchanger, adjust the temperature at 52°...

Embodiment 2

[0098] 1. Purification process

[0099] The raw corn is purified by the induced draft fan, the initial cleaning sieve, and the cylinder cleaning sieve, and then transferred to the soaking tank.

[0100] 2. Soaking process

[0101] Send water to No. 1 soaking tank, adjust the ratio of corn to delivery water between 1:3, and the corn delivery speed is 45T / h. After adding, start the circulation pump of No. 1 soaking tank to circulate the soaking water. The temperature is controlled at 54°C. After 8 hours, pour the soaking water in the No. 1 soaking tank into the No. 2 soaking tank, then add corn to the No. 2 soaking tank, and add water to the No. 2 soaking tank at the same time. The temperature of the No. 1 soaking tank is controlled at 54°C. To maintain the liquid level, after adding corn and water to No. 2 soaking tank, start the soaking water circulating pump, open the condensate valve and steam valve of the corn circulating water heat exchanger, adjust the temperature at 54 ...

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Abstract

The invention relates to a method for the wet extraction of maize embryos, in particular to a method for producing ethanol through the wet extraction and fermentation of the maize embryos. The method comprises the following procedures of: purifying, steeping, removing stones after steeping, crushing and separating the embryos, liquefying, saccharifying, culturing yeast, fermenting, distilling, processing distilled grain, etc. The method belongs to clean production without pollution; the method adopts thick mash fermentation, thereby saving water, reducing energy consumption and reducing production cost; and colloid mill is used to solve the problem of oversize maize peel in the wet crushing of maize, thereby increasing distillation efficiency and improving output and quality.

Description

technical field [0001] The invention relates to a method for producing ethanol by fermenting corn, in particular to a method for producing ethanol by fermenting corn germ by wet extraction. Background technique [0002] Dry crushing of corn produces ethanol, and the germ cannot be extracted, resulting in too much fat and oil in the fermentation process, which affects microbial fermentation and increases the difficulty of sewage treatment. [0003] At present, most of the corn wet crushing is used to extract the germ to produce ethanol in the market, which is not clean production and has pollutants. 1. The production of edible alcohol is not in accordance with the national standard GB10343-2002, but the production of industrial alcohol such as fuel ethanol is emphasized, and the quality index cannot meet edible alcohol. Alcohol standard. 2. The corn husks are not crushed and cannot pass through the φ1.8 sieve, which will easily cause tower blockage during the distillation pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/06C12R1/865
CPCY02E50/10
Inventor 王金淼张乐红
Owner 山东博润实业有限公司
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