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Method and apparatus for producing biological butanol

A production method and technology of bio-butanol, which are applied in the separation/purification, fermentation, organic chemistry and other directions of hydroxyl compounds, can solve the problems of high energy consumption and material consumption, large process water consumption and sewage discharge, and reduce steam consumption, The effect of improving market competitiveness and reducing consumption

Active Publication Date: 2009-08-05
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The raw materials of the bio-butanol production method and equipment of the present invention are starchy raw materials such as corn, wheat, sorghum, rice, cassava and sweet potato, and sugary raw materials such as sugarcane and molasses, which solves or improves the current fermentation method for acetone-butanol production method And the equipment has problems such as high energy consumption and material consumption, large amount of process water and sewage discharge

Method used

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  • Method and apparatus for producing biological butanol
  • Method and apparatus for producing biological butanol
  • Method and apparatus for producing biological butanol

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Using starchy raw materials such as corn, wheat, sorghum, rice, sweet potato, cassava, etc. as raw materials, or sugary raw materials such as sugar cane, molasses, Jerusalem artichoke, etc., using figure 1 , figure 2 , image 3 and Figure 4 The production method shown carries out the production of butanol solvent. In this embodiment, corn is used as raw material to produce acetone and butanol, and the process of producing acetone butanol with other raw materials is roughly the same.

[0050] The corn raw material with a starch content of 64% is continuously cleaned and removed and then pulverized. The pulverized raw material is made into a slurry by adding mixing water in a slurry tank, and the concentration of the slurry is controlled to be 8%. The temperature is about 90°C, and the mixing water is exhaust gas washing water, fresh water, evaporative condensation water, wastewater from the rectification unit and part of the clear liquid from the waste liquid treat...

Embodiment 2

[0059] Using starchy raw materials such as corn, wheat, sorghum, rice, sweet potato, cassava, etc. as raw materials, or sugary raw materials such as sugar cane, molasses, Jerusalem artichoke, etc., using figure 1 , figure 2 , image 3 and Figure 4 The production method shown carries out the production of butanol solvent. In this embodiment, corn is used as raw material to produce acetone and butanol, and the process of producing acetone butanol with other raw materials is roughly the same.

[0060] The implementation process of the fermentation substrate preparation unit, fermentation unit and waste mash treatment unit is the same as that of Example 1.

[0061]The mature mash feed from the fermentation unit is sent to the first beer tower, and the side mining of the first beer tower enters the second beer tower, and the steam at the top of the second beer tower is used as the heating medium for the reboiler of the first beer tower to realize the differential pressure heat...

Embodiment 3

[0065] Using starchy raw materials such as corn, wheat, sorghum, rice, sweet potato, cassava, etc. as raw materials, or sugary raw materials such as sugar cane, molasses, Jerusalem artichoke, etc., using figure 1 , figure 2 , image 3 and Figure 4 The production method shown carries out the production of butanol solvent. In this embodiment, corn is used as raw material to produce acetone and butanol, and the process of producing acetone butanol with other raw materials is roughly the same.

[0066] The implementation process of the fermentation substrate preparation unit, fermentation unit and waste mash treatment unit is the same as that of Example 1.

[0067] The rectification unit is basically the same as in Example 2, and the differences are as follows: the phase separator water layer is sent to a beer tower to reclaim butanol through the water phase receiving tank; the reflux part of the dibutanol tower overhead material part returns to the alcohol phase receiving ta...

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Abstract

The invention relates to a method and equipment for producing bio-butanol. The equipment comprises four production units, namely fermentation substrate preparation, fermentation, solvent rectification and waste mash treatment, wherein the rectification unit comprises beer columns, an ethylene-propylene tower, a butanol tower, an acetone tower, an aldehyde-removing tower and an ethanol tower, and comprises the following process flow: mature mash feed is delivered into a beer column I, is extracted from the side of the beer column I to enter a beer column II, and crude solvents with water content of between 30 and 80 percent extracted from the top of the beer column I and the beer column II are both delivered to the ethylene-propylene tower to be further rectified; the material is produced into crude butanol and mixture of acetone, ethanol and water through the ethylene-propylene tower; the crude butanol is refined into a butanol finished product through the butanol tower; the mixture of acetone, ethanol and water is produced into crude acetone and crude ethanol through the acetone tower; the crude acetone is refined into an acetone finished product through the aldehyde-removing tower; and the crude ethanol is refined into an ethanol finished product through the ethanol tower. The method and the equipment can effectively reduce material consumption and energy consumption in the process for producing the bio-butanol, reduce quantity of wastewater effluent in the production process, and improve market competitiveness of the bio-butanol product.

Description

technical field [0001] The invention relates to a production method and equipment of bio-butanol. In particular, a production method and equipment for producing butanol by using starch and sugar as raw materials through biological fermentation. Background technique [0002] Butanol is an excellent organic solvent and an important chemical raw material, widely used in chemical industry, plastics, organic synthesis, paint, medicine and other fields. As a fuel, butanol has a calorific value equal to that of gasoline and higher than that of ethanol. With the depletion of petroleum resources, butanol, as a new generation of biofuel, is getting more and more attention. [0003] The production of bio-butanol is based on corn, wheat, sorghum, sweet potato, cassava and other starchy materials, or sugar cane, molasses, Jerusalem artichoke and other sugary materials, through fermentation substrate preparation, fermentation, solvent distillation and waste mash treatment. A finished pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C31/12C07C29/74C12P7/16
Inventor 张敏华董秀芹欧阳胜利李永辉陶敏莉张志强钱胜华吕惠生
Owner TIANJIN UNIV
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