Mixed raw-material fermenting process for producing alcohol

A technology of mixing raw materials and fermentation process, which is applied in the direction of fermentation and biofuel, etc., can solve the problem of reducing the amount of waste tank treatment, and achieve the effects of saving distillation steam consumption, reducing the amount of waste, and easy to handle

Active Publication Date: 2009-09-16
GUANGDONG ZHONGKE TIANYUAN NEW ENERGY SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of this invention is to provide a kind of defect that overcomes the fermentation of single raw material in the above-mentioned prior art, replace the process water in the prior art with sugarcane juice, add in the starchy raw material with certain ratio, mix into sugarcane juice powder slurry, The new process of producing alcohol and fuel ethanol through the existing technology of cooking liquefaction, saccharification, fermentation and distillation can not only increase the alcohol concentration of mature mash, save distillation steam, but also reduce the treatment capacity of waste tanks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] Example 1: One-time addition method,

[0019] Take an alcohol plant with an annual output of 22,000 tons and take the cassava dry: sugarcane juice = 1:3 ingredient process as an example:

[0020] Use 18 tons of sugarcane juice per hour, add 6 tons of crushed cassava, in the mixing tank, adjust the slurry to the required concentration, control the temperature of the slurry at 60-65°C, and add an appropriate amount of amylase. In the liquefaction tank, adjust the PH value to 5.2~5.5, and add Ca 2+ , Add the high temperature resistant α-amylase and the slurry and stir evenly, and then use the pump to drive the slurry into the jet liquefier. The slurry and steam directly meet in the ejector. When the ejector processes the slurry, the effect of shearing and stirring is conducive to the uniform mixing and heating of the gas and liquid phases, and can ensure uniform heating and complete cooking of the particles in the slurry. The discharge temperature is controlled at 100~105℃; th...

Embodiment 2

[0029] Example 2: One-time addition method

[0030] Take an alcohol factory with an annual output of 18,000 tons, and take the ingredient process of dried sweet potato: sugarcane juice = 1:1 as an example:

[0031] Squeeze 6 tons of sugarcane juice and crush 6 tons of dried sweet potato per hour.

[0032] Mixing with dried sweet potato: sugarcane juice=1:1, adjust the slurry to the required concentration in the mixing tank, control the temperature of the slurry at 60-65°C, and add an appropriate amount of amylase. In the liquefaction tank, adjust the PH value to 5.2~5.5, and add Ca 2+ , Add high-temperature-resistant α-amylase, stir the material liquid evenly, and pump the sugarcane juice powder slurry into the jet liquefier. The slurry and steam directly meet in the ejector. When the ejector processes the slurry, the effect of shearing and stirring is conducive to the uniform mixing and heating of the gas and liquid phases, and can ensure uniform heating and complete cooking of t...

example 3

[0040] Example 3: Two-time addition method

[0041] Take an alcohol plant with an annual output of 15,000 tons and take the ingredient process of dried cassava: sugarcane juice = 1:6 as an example:

[0042] Squeeze 18 tons of sugar cane juice per hour and crush 3.0 tons of dried cassava.

[0043] First mix with dried cassava: sugarcane juice=1:3, and mix with 9 tons (50%) sugarcane juice as the raw material of dried cassava powder. Adjust the slurry in the mixing tank. When the required concentration is reached, the temperature of the slurry is controlled at 60-65°C, and an appropriate amount of amylase is added. In the liquefaction tank, adjust the PH value to 5.2~5.5, and add Ca 2+ , Add high-temperature-resistant α-amylase, stir the material liquid evenly, and pump the sugarcane juice powder slurry into the jet liquefier. The slurry and steam directly meet in the ejector. When the ejector processes the slurry, the effect of shearing and stirring is conducive to the uniform mixi...

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Abstract

This invention has publicized one kind of ethyl alcohol production mix raw material fermentation process, Including raw material processing, mixes the material, the steam boiling to liquefy, the saccharification, the fermentation, the distillation working procedure, in raw material processing working procedure, the starchiness raw material smashing, presses out the sugar cane the juice to filter the sugar cane juice, starchiness raw material powder and sugar cane juice weight allocated proportion for 1:1-1:10. Starch quality raw material is cassava trunk, corn, potato, wheat, barley or the trunk of sweet potato. The beneficial effect of this invention are: increased sugar cane juice in the total sugar concentration, and lower raw material Organization of starch concentration of the solids, improve mobility, enhance mature Organization alcohol concentration, the amount of steam distillation savings, and also reducing units tons of alcohol Pai worse, worse reduce waste handling capacity, but also more easily spoil waste processing, alcohol production process so that environmental protection.

Description

Technical field [0001] The invention relates to a production process of alcohol and fuel ethanol. technical background [0002] At present, in the world, there are two main methods to achieve thick mash fermentation: one is that some companies in the United States use large-grain corn flour (3mm in diameter to reduce viscosity. The other method is to complete the saccharification of starchy raw materials in one step, that is, complete saccharification. . Then use the method of gradually adding sugar liquid to control the fermentation. (-Jia Shubiao et al. Newly edited Alcohol Technology 2004 Chemical Industry Press P102), and the literature search results show that fresh potato raw materials are mixed with hot water and amylase at the same time Alcohol production by fermentation (Chinese Invention Patent Bulletin, CN-1044941A) and the production of alcohol by mixed use of sorghum and corn raw materials (Liquor Science and Technology.1999(4).-40-42) have been reported; the use of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P7/06
CPCY02E50/17Y02E50/10
Inventor 陈勇唐兆兴余伟俊陈宪笙
Owner GUANGDONG ZHONGKE TIANYUAN NEW ENERGY SCI & TECH
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