CN201873680U - System device for ethanol fermentation and separation and coupling based on pervaporation membrane - Google Patents
System device for ethanol fermentation and separation and coupling based on pervaporation membrane Download PDFInfo
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- CN201873680U CN201873680U CN 201020253401 CN201020253401U CN201873680U CN 201873680 U CN201873680 U CN 201873680U CN 201020253401 CN201020253401 CN 201020253401 CN 201020253401 U CN201020253401 U CN 201020253401U CN 201873680 U CN201873680 U CN 201873680U
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/12—Bioreactors or fermenters specially adapted for specific uses for producing fuels or solvents
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
- C12M47/10—Separation or concentration of fermentation products
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Abstract
The utility model discloses a system device for ethanol fermentation and separation and coupling based on a pervaporation membrane, which comprises a fermenting unit, micro-filtration membrane filtering units and a pervaporation membrane separating unit, wherein two groups of micro-filtration membrane filtering units in parallel arrangement are provided with pipelines and valves for switching operation; the two groups of micro-filtration membrane filtering units are respectively communicated with a fermentation liquid outlet pipeline of the fermenting unit; outlets of the two groups of micro-filtration membrane filtering units are respectively connected with the inlet of the pervaporation membrane separating unit; the two groups of micro-filtration membrane filtering units are respectively provided with cleaning pipelines; the cleaning pipelines are connected with a retentate outlet of the pervaporation membrane separating unit; and permeate gas of the pervaporation membrane separating unit is collected as concentrated ethanol solution after condensation. Compared with the prior art, the system device simplifies the pretreatment process of cellulose, and solves problems of the influence on the continuous and stable operation of the device due to the blocking of a bacteria filter membrane and the like.
Description
Technical field
The utility model relates to a kind of alcohol production device, particularly ethanol fermentation and separates the coupled system and device.
Background technology
Alcohol fuel is a kind of novel clean fuel, is the important directions of renewable energy source development and use.Alcohol fuel can be produced by the biological fermentation mode with crops such as corn, wheat, sugarcane, cassava, Ipomoea batatas, Chinese sorghum, beets, also can utilize vegetable fibre to produce by the biological fermentation mode through pre-treatment, mineral acid or cellulase hydrolysis again.
The turnout that vegetable fibre is produced is big, with crop contention resource such as grain, is not the desirable feedstock of alcohol fuel.Cellulose raw producing and ethanol technology generally comprises 4 processes: promptly the pre-treatment of raw material, enzymic hydrolysis, fermentation and ethanol separate.
Cellulosic pretreatment process comprises physics method, chemical method, physico-chemical processes and biological process etc.In order to destroy the fibrous texture in the lignocellulose, preprocessing process can form some by products that suppress cellulose hydrolysis and ethanol fermentation process more or less: various organic monoacids (as acetate and formic acid), furan derivatives (as furfural and hydroxymethylfurfural) and benzene compounds etc.Therefore, generally need the washing or the detoxification process of a Mierocrystalline cellulose residue after the lignocellulose pre-treatment, the various inhibition components with removing in the Mierocrystalline cellulose residue improve the efficient of next step enzymolysis and fermentation.Washing and detoxification process make whole process complications, have increased the consumption and the energy consumption of water, and the difficulty of follow-up water treatment, have improved the alcoholic acid production cost.
CN200710130936.6 discloses a kind of ethyl alcohol in situ separating method that improves biomass ferment strength, infiltration vaporization membrane module is placed the direct and fermenting process coupling of fermentor tank, by infiltrating and vaporizing membrane will ferment the ethanol that generates directly in fermentor tank original position separate not that offset goes, feedback inhibition in the ethanol fermentation process is broken, improved the fermentation efficiency of biomass.CN200810020356.6 provides a kind of fermentation and infiltration evaporation coupling to produce alcoholic acid technology.By the filter membrane that is arranged on the fermentor tank bottom thalline in the fermentor tank and fermentation clear liquid are separated, fermentation clear liquid arrives the separator of infiltrating and vaporizing membrane by pump delivery, and reduces the obstruction of fermentor tank bottom by the circulation of seepage remaining liquid.
Summary of the invention
The utility model provides a kind of ethanol fermentation based on infiltrating and vaporizing membrane and separates the coupled system and device, can be when realizing fermentation and initial gross separation, simplify the Mierocrystalline cellulose preprocessing process, solved the problems such as continous-stable running of thalline filter membrane congestion affects device.
The utility model based on the ethanol fermentation of infiltrating and vaporizing membrane with separate the coupled system and device and comprise: fermentation unit, micro-filtrate membrane filtration unit and infiltration evaporation film separation unit.The micro-filtrate membrane filtration unit is provided with two groups and the pipeline and the valve of blocked operation arranged side by side, two groups of micro-filtrate membrane filtration unit communicate with fermentation unit fermented liquid outlet conduit respectively, two groups of unitary outlets of micro-filtrate membrane filtration are connected with infiltration evaporation film separation unit inlet by pipeline respectively, two groups of micro-filtrate membrane filtration unit are provided with detergent line respectively, detergent line links to each other with the seepage remaining liquid outlet of infiltration evaporation film separation unit, and the infiltration gas of infiltration evaporation film separation unit is collected as spissated ethanolic soln after condensation.
In the utility model, fermentation unit can be the fermentation reactor of this area routine, as wedged bottom fermentor tank, coned fermentation tank, butterfly fermentor tank etc., the perhaps combination of different structure fermentor tank.
In the utility model, the micro-filtrate membrane filtration unit is totally-enclosed micro-filtration membrane module, be divided into two groups arranged side by side, valve by every group of micro-filtrate membrane filtration unit entrance and exit setting carries out blocked operation, one group is carried out the filtering while, another group utilizes seepage remaining liquid to carry out the microfiltration membrane cleaning operation, has guaranteed the steady and continuous running of device.Microfiltration membrane can be a currently available products arbitrarily such as tubular membrane, flat sheet membrane or hollow-fibre membrane, and material can be organic membrane or mineral membrane, and the aperture of film is 0.1-10 μ m.The pipeline that the unitary concentrated thallus suspension liquid of micro-filtrate membrane filtration turns back to fermentor tank is set, microfiltration membrane plays the effect of holding back the ethanol fermentation bacterium, turn back to fermentor tank through spissated thallus suspension liquid, fermentation clear liquid then enters into the storage tank of infiltration evaporation film separation unit.
In the utility model, the infiltration evaporation film separation unit comprises the equipment such as fermentation clear liquid storage tank, pump, infiltration evaporation device, condensing works, ethanol concentrated solution storage tank and vacuum pump that connected by pipeline successively by the Flow of Goods and Materials direction.In the infiltration evaporation device infiltrating and vaporizing membrane is set, infiltrating and vaporizing membrane is divided into two chambers of upstream side and downstream side with the infiltration evaporation device, and upstream side is a liquid-phase chamber, and the downstream side is the vapour phase chamber.The vapour phase chamber is connected with vacuum system successively with condensing works, and the liquid phase that obtains of condensation is that spissated ethanolic soln enters ethanol concentrated solution storage tank.The fermentation clear liquid that is entered into the fermented liquid storage tank by a last unit is driven into the infiltration evaporation device by pump after storage tank process heater heats is to 30-70 ℃, enter liquid-phase chamber, and liquid-phase chamber's seepage remaining liquid is circulated to the micro-filtrate membrane filtration unit by pipeline.Infiltrating and vaporizing membrane has the selection trafficability characteristic to the ethanol in the fermentation clear liquid and fermentation inhibitor such as components such as acetate, formic acid and furfural, these organic molecule dissolvings are adsorbed in the surface of infiltrating and vaporizing membrane, under the chemical potential gradient effect of infiltrating and vaporizing membrane, preferentially diffuse through, the upstream side fermentation clear liquid is formed changed.By the component of membrane permeation to downside, because its vapor partial pressure is vaporized on the film surface less than its saturated vapor pressure, enter condenser system subsequently, vapor condensation gets off promptly to get and permeates product: the ethanol concentrated solution enters into storage tank.The impellent of whole process is the partial pressure difference of the infiltration component of infiltrating and vaporizing membrane both sides, removes the gas phase and the condensation in infiltrating and vaporizing membrane downstream side and collects, and can keep the certain mass transfer force of upstream and downstream.Also can use rare gas element, as the CO of fermentation generation
2The mode that purges replaces vacuum system, and rare gas element can be recycled after seeing through component through the condensation recovery.The alcohol concn that concentrates the ethanol concentrated solution that obtains by the infiltration evaporation membrane sepn is 40%-60% (quality), further can obtain dehydrated alcohol through rectifying and dehydration.
The permeable membrane that uses can be the permeable membrane that it(?) can selectivity in the prior art preferentially permeates ethanol and components such as acetate, formic acid and furfural, as the disclosed osmotic vaporizing membrane penetrated preferably by organic substances of CN99112885.0, the infiltrating and vaporizing membrane of the disclosed separating alcohol-water system of CN200810060981.3 etc.
In the utility model, other technology contents can be determined by the conventional content design in this area as the transferpump of material, material storage tank etc., and is concrete as fermented liquid transferpump and fermentation clear liquid transferpump etc. are set.
This reality has and has novelly realized alcoholic acid original position separate fermentation by the infiltrating and vaporizing membrane that utilizes a kind of selective permeation ethanol and fermentation inhibitor such as components such as acetate, formic acid and furfural, remove the inhibitions such as various weak acid, furan derivatives and benzene compounds in the fermentation clear liquid simultaneously, cell density in the system is increased significantly than batch culture, remove product ethanol and various inhibition to the restraining effect of fermented bacterium, finally improve alcoholic acid productivity.Utilization is carried out back flushing from the fermentation clear liquid that infiltrating and vaporizing membrane returns to microfiltration membrane, can alleviate because film stops up the decrease in efficiency of the system that causes, the continuous operation of implement device.The utlity model has simple, alcohol yied advantages of higher, can be widely used in the cellulose ethanol production process.
Description of drawings
Fig. 1 for the utility model based on the fermentation of the cellulose ethanol of infiltrating and vaporizing membrane and separate the coupled system device and constitute synoptic diagram.
Wherein: the 11-fermentor tank, first group of micro-filtrate membrane filtration unit of 121-, second group of micro-filtrate membrane filtration unit of 122-, 13-fermentation clear liquid storage tank, 14-infiltration evaporation device, the 15-condensing works, 16-ethanol concentrated solution storage tank, 17-vacuum pump, first group of micro-filtrate membrane filtration unit of 21-inlet valve, second group of micro-filtrate membrane filtration unit of 22-inlet valve, first group of micro-filtrate membrane filtration unit of 23-outlet valve, second group of micro-filtrate membrane filtration unit of 24-outlet valve, first group of micro-filtrate membrane filtration unit of 25-washings inlet valve, second group of micro-filtrate membrane filtration unit of 26-washings inlet valve, 27-exterior liquid bleed valve, 31-fermented liquid transferpump, 32-fermentation clear liquid transferpump, the 41-feeding medium during fermentation, the 42-exterior liquid.
Embodiment
The ethanol fermentation bacterial classification comprise various can be glucose or/and wood-sugar fermentation generates the alcoholic acid bacterial strain.Glucose and wood sugar can separate independent fermentation, also can ferment altogether simultaneously.Added assorted bacteria inhibitor in the fermenting process, as being all microbiotic or sanitass that suppress bacterium and mould-growth, preferred penicillin.
In the utility model, the fermentor tank that fermentation unit adopts is the stirred fermentor of the band outer circulation interchanger of existing ethanol fermentation factory maturation process, or further optimizes improved fermentor tank.The nutritive substance of ethanol fermentation bacterial strain comprises carbon source, nitrogenous source and phosphorus source.The substrate of ethanol fermentation promptly can be used as the carbon source of microorganism growth, needn't additionally add.Nitrogenous source can be ammonia-state nitrogen and the organonitrogen that all ethanol fermentation bacterial strains can directly utilize, as ammonium sulfate, and urea and yeast extract paste etc., preferred urea, the urea add-on is 0.01%-0.1% (quality) in the fermented liquid.The phosphorus source can be the P contained compound that all ethanol fermentation bacterial strains can directly utilize, as dipotassium hydrogen phosphate and ammonium phosphate etc., and the preferably phosphoric acid potassium dihydrogen, the add-on of potassium primary phosphate is 0.005%-0.05% (quality) in the fermented liquid.Fungistat adopts penicillin, and the penicillin add-on is the 10-100 μ g/g of fermented liquid.
The utility model adopts specificity poor slightly, can the selective permeation organism, the infiltrating and vaporizing membrane that comprises alcohols, organic acid and benzene compounds etc., favourable reduction product alcoholic acid feedback inhibition and various by product restraining effect to fermentation, simplify the preprocessing process of raw material, improved fermentation efficiency.
As shown in Figure 1, the hydrolyzed solution of lignocellulose is driven into fermentor tank 11 from fermentor tank, and the glucose in the hydrolyzed solution is or/and wood sugar is generated ethanol by saccharomycetes to make fermentation, and fermentor tank intermittently stirs, stir speed (S.S.) 30-100r/min, stirring frequency is to stir 30-60min every 2-3h.
When the alcohol concn in the fermented liquid reaches 3%-5% (quality), close exterior liquid bleed valve 27, open first group of micro-filtrate membrane filtration unit inlet valve 21, first group of micro-filtrate membrane filtration unit outlet valve 23 and second group of micro-filtrate membrane filtration unit washings inlet valve 26, close second group of micro-filtrate membrane filtration unit inlet valve 22, second group of micro-filtrate membrane filtration unit outlet valve 24 and first group of micro-filtrate membrane filtration unit washings inlet valve 25.Open fermented liquid transferpump 31, the zymophyte liquid suspension is driven into first group of micro-filtrate membrane filtration unit 121, directly return fermentor tank through spissated thallus suspension liquid, the clear liquid after the filtration enters into fermentation clear liquid storage tank 13.Open fermentation clear liquid transferpump 32, be heated to 30-70 ℃ containing 3%-5% (quality) alcoholic acid fermentation clear liquid in the fermentation clear liquid storage tank, be driven in infiltration evaporation device 14 liquid-phase chamber, open vacuum pump 17 simultaneously, organism such as product ethanol and inhibition acetate, formic acid and furfural are diffused into phase chamber one side under the chemical potential gradient effect of infiltrating and vaporizing membrane, vaporize under the effect of vacuum system, and enter into condensing works 15, the vapor condensation product enters into ethanol concentrated solution storage tank 16.The most of water of fermentation clear liquid in the liquid-phase chamber and be not penetrated into organism that phase chamber goes on a small quantity as yet under the driving of fermentation clear liquid transferpump 32, enter into second group of micro-filtrate membrane filtration unit 122, second group of micro-filtrate membrane filtration unit 122 carried out back flushing, right getting back in the fermentor tank later.
When the passing through efficient and begin to descend of first group of micro-filtrate membrane filtration unit 121, close first group of micro-filtrate membrane filtration unit inlet valve 21, first group of micro-filtrate membrane filtration unit outlet valve 23 and second group of micro-filtrate membrane filtration unit washings inlet valve 26, open second group of micro-filtrate membrane filtration unit inlet valve 22, second group of micro-filtrate membrane filtration unit outlet valve 24 and first group of micro-filtrate membrane filtration unit washings inlet valve 25, the zymophyte liquid suspension is driven into first group of micro-filtrate membrane filtration unit 122, directly return fermentor tank through spissated thallus suspension liquid, clear liquid after the filtration enters into fermentation clear liquid storage tank 13, realize blocked operation, respectively the micro-filtrate membrane filtration unit is used and back flushing the continous-stable operation of implement device according to certain frequency.
The alcohol concn that enters into the ethanol concentrated solution of storage tank is 40%-60% (quality), further can obtain dehydrated alcohol through rectifying and dehydration.
Claims (7)
- One kind based on the ethanol fermentation of infiltrating and vaporizing membrane with separate the coupled system and device, comprise fermentation unit, micro-filtrate membrane filtration unit and infiltration evaporation film separation unit, it is characterized in that: the micro-filtrate membrane filtration unit is provided with two groups and the pipeline and the valve of blocked operation arranged side by side, two groups of micro-filtrate membrane filtration unit communicate with fermentation unit fermented liquid outlet conduit respectively, two groups of unitary outlets of micro-filtrate membrane filtration are connected with infiltration evaporation film separation unit inlet by pipeline respectively, two groups of micro-filtrate membrane filtration unit are provided with detergent line respectively, detergent line links to each other with the seepage remaining liquid outlet of infiltration evaporation film separation unit, and the infiltration gas of infiltration evaporation film separation unit is collected as spissated ethanolic soln after condensation.
- 2. according to the described device of claim 1, it is characterized in that: the fermentation reactor of fermentation unit is a kind of or combination of wedged bottom fermentor tank, coned fermentation tank or butterfly fermentor tank.
- 3. according to the described device of claim 1, it is characterized in that: the micro-filtrate membrane filtration unit is totally-enclosed micro-filtration membrane module, and microfiltration membrane is tubular membrane, flat sheet membrane or hollow-fibre membrane, and the microfiltration membrane material is organic membrane or mineral membrane, and the aperture of film is 0.1-10 μ m.
- 4. according to the described device of claim 1, it is characterized in that: the pipeline that the unitary concentrated thallus suspension liquid of micro-filtrate membrane filtration turns back to fermentor tank is set.
- 5. according to the described device of claim 1, it is characterized in that: the infiltration evaporation film separation unit comprises fermentation clear liquid storage tank, pump, infiltration evaporation device, condensing works, ethanol concentrated solution storage tank and the vacuum pump that is connected by pipeline successively by the Flow of Goods and Materials direction.
- 6. according to the described device of claim 5, it is characterized in that: in the infiltration evaporation device infiltrating and vaporizing membrane is set, infiltrating and vaporizing membrane is divided into two chambers of upstream side and downstream side with the infiltration evaporation device, upstream side is a liquid-phase chamber, the downstream side is the vapour phase chamber, the vapour phase chamber is connected with vacuum system successively with condensing works, and the liquid phase that obtains of condensation is that spissated ethanolic soln enters ethanol concentrated solution storage tank, and liquid-phase chamber's seepage remaining liquid is circulated to the micro-filtrate membrane filtration unit by pipeline.
- 7. according to the described device of claim 6, it is characterized in that: infiltrating and vaporizing membrane has the selection trafficability characteristic to the ethanol in the fermentation clear liquid and fermentation inhibitor acetate, formic acid and furfural component.
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| CN 201020253401 CN201873680U (en) | 2010-07-07 | 2010-07-07 | System device for ethanol fermentation and separation and coupling based on pervaporation membrane |
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| CN 201020253401 CN201873680U (en) | 2010-07-07 | 2010-07-07 | System device for ethanol fermentation and separation and coupling based on pervaporation membrane |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103254158A (en) * | 2013-05-21 | 2013-08-21 | 北京化工大学 | Method and device for producing furfural by using biomass hydrolysis coupling pervaporation separation technology |
| CN104587834A (en) * | 2015-01-27 | 2015-05-06 | 太原理工大学 | Device and method for separating and recovering high-boiling-point organic matter from low-concentration aqueous solution |
| CN106906259A (en) * | 2017-02-23 | 2017-06-30 | 浙江兰博生物科技股份有限公司 | The preparation method and its production equipment of a kind of niacinamide |
| CN108265088A (en) * | 2017-01-03 | 2018-07-10 | 北京化工大学 | A kind of method for preparing ester type compound using lipase-catalyzed alcoholic fermentation product |
| WO2018214317A1 (en) * | 2017-05-25 | 2018-11-29 | 广州无添加主义化妆品有限公司 | Bio-fermentation filtration system |
| CN110241023A (en) * | 2019-06-20 | 2019-09-17 | 江南大学 | A kind of bioreactor and application for the extensive animal cell culture of high density |
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2010
- 2010-07-07 CN CN 201020253401 patent/CN201873680U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103254158A (en) * | 2013-05-21 | 2013-08-21 | 北京化工大学 | Method and device for producing furfural by using biomass hydrolysis coupling pervaporation separation technology |
| CN103254158B (en) * | 2013-05-21 | 2015-07-22 | 北京化工大学 | Method and device for producing furfural by using biomass hydrolysis coupling pervaporation separation technology |
| CN104587834A (en) * | 2015-01-27 | 2015-05-06 | 太原理工大学 | Device and method for separating and recovering high-boiling-point organic matter from low-concentration aqueous solution |
| CN108265088A (en) * | 2017-01-03 | 2018-07-10 | 北京化工大学 | A kind of method for preparing ester type compound using lipase-catalyzed alcoholic fermentation product |
| CN106906259A (en) * | 2017-02-23 | 2017-06-30 | 浙江兰博生物科技股份有限公司 | The preparation method and its production equipment of a kind of niacinamide |
| CN106906259B (en) * | 2017-02-23 | 2020-05-05 | 浙江兰博生物科技股份有限公司 | Nicotinamide production facility |
| WO2018214317A1 (en) * | 2017-05-25 | 2018-11-29 | 广州无添加主义化妆品有限公司 | Bio-fermentation filtration system |
| CN110241023A (en) * | 2019-06-20 | 2019-09-17 | 江南大学 | A kind of bioreactor and application for the extensive animal cell culture of high density |
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