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Alcohol preparation technology and device by means of continuous fermentation method

A fermentation method and process technology, which is applied in the field of continuous fermentation method to prepare alcohol to achieve the effect of maintaining vitality and concentration

Pending Publication Date: 2018-03-30
BEIJING SHOUGANG LANZATECH TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a continuous preparation process that can solve the problem of inhibition of fermentation by products in the process of alcohol production by fermentation and maintain the vitality and concentration of bacteria

Method used

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  • Alcohol preparation technology and device by means of continuous fermentation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Filtrate the first ceramic membrane in the first fermenter, and obtain activated strains on the intercepted side, a part of the intercepted side feed liquid enters the second fermenter for bacterial fermentation, and the other part of the retained feed liquid returns to the first fermenter to maintain the concentration of the strain , the permeate of the first ceramic membrane is sent to the second fermentation tank as raw material; the first ceramic membrane filter adopts continuous operation mode, the material is zirconia membrane, the average pore size is 200nm, the cross-flow velocity is 4m / s, and the filtration pressure is at 0.2 Mpa, the temperature is 37°C.

[0031] The fermented liquid obtained from the fermentation in the second fermenter is sent to the ceramic membrane for filtration, and the bacterial strains that have entered the decay period are obtained on the intercepted side, and part of the intercepted side feed liquid enters the subsequent ethanol recov...

Embodiment 2

[0034]Filtrate the first ceramic membrane in the first fermenter, and obtain activated strains on the intercepted side, a part of the intercepted side feed liquid enters the second fermenter for bacterial fermentation, and the other part of the retained feed liquid returns to the first fermenter to maintain the concentration of the strain , the permeate of the first ceramic membrane is sent to the second fermentation tank as raw material; the first ceramic membrane filter adopts continuous operation mode, the material is alumina membrane, the average pore size is 200nm, the cross-flow velocity is 3m / s, and the filtration pressure is at 0.3 Mpa, the temperature is 40°C.

[0035] The fermented liquid obtained from the fermentation in the second fermenter is sent to the ceramic membrane for filtration, and the bacterial strains that have entered the decay period are obtained on the intercepted side, and part of the intercepted side feed liquid enters the subsequent ethanol recover...

Embodiment 3

[0038] Filtrate the first ceramic membrane in the first fermenter, and obtain activated strains on the intercepted side, a part of the intercepted side feed liquid enters the second fermenter for bacterial fermentation, and the other part of the retained feed liquid returns to the first fermenter to maintain the concentration of the strain , the permeate of the first ceramic membrane is sent to the second fermentation tank as raw material; the first ceramic membrane filter adopts continuous operation mode, the material is alumina membrane, the average pore size is 50nm, the cross-flow velocity is 2m / s, and the filtration pressure is at 0.4Mpa, the temperature is 30°C.

[0039] The fermented liquid obtained from the fermentation in the second fermenter is sent to the ceramic membrane for filtration, and the bacterial strains that have entered the decay period are obtained on the intercepted side, and part of the intercepted side feed liquid enters the subsequent ethanol recovery...

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Abstract

The invention relates to the technical field of energy sources, in particular to an alcohol production method and device by means of fermentation-membrane separation coupling. Microorganisms are mainly adopted for biological fermentation, and the membrane separation technology is combined for alcohol preparation. According to the alcohol production method, the fermentation-membrane separation technology is coupled, the inhibitory effect of product alcohol on fermentation in the fermentation process can be solved, and the activity and concentration of the microorganisms in a fermentation tank are maintained, so that the continuity of biological fermentation is achieved; high-purity protein can be obtained and can be applicable to feed; in the production process, waste water can be comprehensively treated.

Description

technical field [0001] The invention relates to a process and device for preparing alcohol by a continuous fermentation method, belonging to the technical field of energy. Background technique [0002] With the increasing tension of global fossil fuels and increasingly serious environmental pollution, the energy and environmental crisis has become a major obstacle to the sustainable development of human society in the 21st century. Ethanol is not only a good solvent, but also can be used as a raw material for the production of various chemical products. Grain ethanol is heavily dependent on agricultural food crops, and the development of a non-disturbing policy of "not competing with the people for food and land" is the direction of the development of fuel ethanol in my country and the world; the production costs of non-grain ethanol and biomass ethanol have been high , the main cost is in raw materials and enzyme preparations. Under the environment of global oil downturn,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/14C12P7/16C12P7/04C12M1/12C12M1/00
CPCC12M23/58C12M37/02C12P7/04C12P7/14C12P7/16Y02E50/10
Inventor 彭文博王晓东赵士明莫志朋江健杨艳刘乐天佟淑环柳磊晁伟范克银
Owner BEIJING SHOUGANG LANZATECH TECH CO LTD
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