CN203247263U - Straw synchronized enzymolysis and fermentation fuel alcohol circulation reactor - Google Patents
Straw synchronized enzymolysis and fermentation fuel alcohol circulation reactor Download PDFInfo
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- CN203247263U CN203247263U CN201320242635.3U CN201320242635U CN203247263U CN 203247263 U CN203247263 U CN 203247263U CN 201320242635 U CN201320242635 U CN 201320242635U CN 203247263 U CN203247263 U CN 203247263U
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- 238000000855 fermentation Methods 0.000 title claims abstract description 64
- 230000004151 fermentation Effects 0.000 title claims abstract description 64
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000000446 fuel Substances 0.000 title claims abstract description 22
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 19
- 239000010902 straw Substances 0.000 title abstract description 24
- 239000000919 ceramic Substances 0.000 claims abstract description 35
- 239000012528 membrane Substances 0.000 claims abstract description 34
- 238000004821 distillation Methods 0.000 claims abstract description 26
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims description 33
- 230000007071 enzymatic hydrolysis Effects 0.000 claims description 23
- 238000006047 enzymatic hydrolysis reaction Methods 0.000 claims description 23
- 238000013019 agitation Methods 0.000 claims description 17
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 3
- 108090000790 Enzymes Proteins 0.000 abstract description 17
- 102000004190 Enzymes Human genes 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 230000001954 sterilising effect Effects 0.000 abstract description 14
- 238000002156 mixing Methods 0.000 abstract description 10
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 10
- 239000001913 cellulose Substances 0.000 abstract description 9
- 229920002678 cellulose Polymers 0.000 abstract description 9
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 150000001413 amino acids Chemical class 0.000 abstract description 2
- 230000003115 biocidal effect Effects 0.000 abstract 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 32
- 235000014680 Saccharomyces cerevisiae Nutrition 0.000 description 26
- 108010059892 Cellulase Proteins 0.000 description 25
- 229940106157 cellulase Drugs 0.000 description 25
- 239000007788 liquid Substances 0.000 description 19
- 229940088598 enzyme Drugs 0.000 description 16
- 239000000843 powder Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000000706 filtrate Substances 0.000 description 7
- 238000010992 reflux Methods 0.000 description 7
- 150000003384 small molecules Chemical class 0.000 description 7
- 238000002203 pretreatment Methods 0.000 description 5
- 240000008042 Zea mays Species 0.000 description 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 4
- 239000006052 feed supplement Substances 0.000 description 4
- 241000233866 Fungi Species 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 240000006394 Sorghum bicolor Species 0.000 description 3
- 235000015505 Sorghum bicolor subsp. bicolor Nutrition 0.000 description 3
- 235000011684 Sorghum saccharatum Nutrition 0.000 description 3
- 230000031018 biological processes and functions Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229920005610 lignin Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 235000009973 maize Nutrition 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000012262 fermentative production Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 210000005253 yeast cell Anatomy 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The utility model relates to a straw synchronized enzymolysis and fermentation fuel alcohol circulation reactor. The reactor comprises a mechanical mixing fermentation tank, an air cleaning device, a steam generation device, a temperature control device, a distillation tower, a lower computer control system, an upper computer control system, a speed controller, a mixing motor, a pressure pump and a ceramic ultrafiltration membrane separation device, wherein the upper end of the ceramic ultrafiltration membrane separation device is connected with the feeding back opening of the mechanical mixing fermentation tank, and the lower end is connected with a fermentation residue discharging opening of the mechanical mixing fermentation tank through the pressure pump. The reactor combines the functions of sterilization, enzymolysis and fermentation into a whole, can be used for the production of straw synchronized enzymolysis and fermentation fuel alcohol, and be used for straw step-by-step enzymolysis and fermentation technologies to produce fuel alcohol; the ceramic ultrafiltration membrane separation device can realize repeated circulation and utilization of cellulose and yeasty; the reactor can be used for not only production of straw enzymolysis and fermentation fuel alcohol, but also fermentation production of biological products such as antibiotic, amino acid and enzyme.
Description
Technical field
The utility model belongs to the microbial fermentation equipment technical field, relates to a kind ofly take stalk as raw material, adopts synchronous enzymatic hydrolysis and fermentation technique, can reuse the integrated reactor that the fermented liquid that contains cellulase, zytase and yeast is produced alcohol fuel.
Background technology
Take reproducible straw refuse as raw material, adopt microbial fermentation technology to produce alcohol fuel, become and alleviated China's energy dilemma, the comprehensive utilization straw refuse ensures the grand strategy measure of energy security.But also do not form at present extensive, suitability for industrialized production, chief reason is exactly that production cost is too high.The technique of utilizing cellulose raw producing and ethanol in the stalk take maize straw as representative generally comprises pre-treatment, enzymolysis and three steps of fermentation.Wherein enzymolysis mainly is that hydrocellulose and hemicellulose decompose saccharogenesis, and fermentation mainly changes into alcohol with sugar.At present, the enzymolysis of stalk accounts for about 60% in whole Fuel Ethanol Production Cost, is simplified apparatus, shortens the production cycle, often adopts synchronous enzymatic hydrolysis and fermentation (SSF) processing method.The method is cellulase and suitable yeast to be placed on carry out continuously cellulosic enzymolysis and fermentation in the same container.This technological advantage has reduced the feedback inhibition of glucose, has improved spirit yield and production efficiency.How improving the utilization ratio of cellulase and yeast, is further to improve the efficient of synchronous enzymatic hydrolysis and fermentation and the output of ethanol, reduces the consumption of cellulase and yeast, reduces the key of alcohol production cost.And research and develop suitable reactor (utility model patent ZL200680034205.5, cellulose materials is converted into the method and apparatus of ethanol, mention the importance of reactor), trying to explore for the producing fuel ethanol using stalk material industrialization advances to make, is one of this technical field scientific research personnel urgent problem.
Traditional synchronous enzymatic hydrolysis and fermentation reactor adopts mechanical stir-reactor mostly, cellulase and yeast and stalk are once thrown in simultaneously, after the fermentation ends, residual cellulose enzyme and yeast are along with fermentation residue is emitted together, cause the waste of cellulase and yeast, do not given full play to the utilising efficiency of enzyme and yeast.And the consumption cost of cellulase accounts for more than 70% of enzymatic hydrolysis and fermentation cost.
The utility model content
The problems referred to above for reactor existence in the synchronous enzymatic hydrolysis and fermentation process in the prior art, be the abundant recycle problem of the mixed bacteria liquid that solves rich cellulose enzyme and yeast, the utility model provides that a kind of technique is simple, the significant circulating integrated reactor of effect.
The technical solution of the utility model is:
The synchronous enzymatic hydrolysis and fermentation alcohol fuel of stalk loop reactor, comprise 50～100000L mechanical agitation type fermentor tank, air cleaning unit, steam generation device, temperature controlling system, distillation tower, lower computer Controlling System, Monitor Computer Control System, sensor and instrumental system, speed regulator and agitator motor, supporting piping system and valve, 0.098MPa～4.0MPa pressure pump, the upper end of described mechanical agitation type fermentor tank is provided with opening for feed and feedback outlet, and the lower end is provided with the fermentation residue relief outlet; Also comprise the Ceramic excessive filtration membrane separation unit, the upper end of described Ceramic excessive filtration membrane separation unit links to each other with the feedback outlet of mechanical agitation type fermentor tank upper end, and the lower end links to each other through the fermentation residue relief outlet of pressure pump with mechanical agitation type fermentor tank lower end.
Further, the synchronous enzymatic hydrolysis and fermentation alcohol fuel of this stalk loop reactor also comprises 30 * 30～500 * 500mm fie screen, and described fie screen is arranged at the fermentation residue relief outlet place of mechanical agitation type fermentor tank lower end.
Further, described Ceramic excessive filtration membrane separation unit is comprised of the tubular type zirconia ceramics ultra-filtration membrane of 1～10 Φ 50 * 5500, and the membrane pore size of ceramic super-filtering film is 0.05 μ m～10 μ m.
Further, described Ceramic excessive filtration membrane separation unit is wholy set in the stainless steel tube.
Further, described fermentation residue relief outlet place is provided with upper flange and lower flange, and described fie screen is arranged at up and down flange connections or is arranged in the upper flange.
The beneficial effects of the utility model are:
(1) this reactor integrates sterilization, enzymolysis and ferments, and both can be used for the production of the synchronous enzymatic hydrolysis and fermentation alcohol fuel of stalk, also can be used for stalk substep enzymolysis, zymotechnique production alcohol fuel.Greatly improved plant factor.
(2) this reactor has adopted the Ceramic excessive filtration membrane separation unit, can realize the iterative cycles utilization of cellulase, yeast, greatly reduces the consumption of enzyme and yeast, saves production cost, and enhances productivity.
(3) this reactor not only can be used for the production of stalk enzymatic hydrolysis and fermentation alcohol fuel, but also can be used for the fermentative production of the biological products such as microbiotic, amino acid, enzyme.
Description of drawings
Fig. 1 is the structural representation of the synchronous enzymatic hydrolysis and fermentation alcohol fuel of the utility model stalk loop reactor.
Among the figure: 1, mechanical agitation type fermentor tank; 2, air cleaning unit; 3, steam generation device; 4, distillation tower; 5, lower computer Controlling System; 6, Monitor Computer Control System; 7, speed regulator; 8, agitator motor; 9, pressure pump; 10, opening for feed; 11, feedback outlet; 12, fermentation residue relief outlet; 13, Ceramic excessive filtration membrane separation unit; 14, fie screen; 15, stainless steel tube; 16, upper flange; 17, lower flange; 18, heating water tank; 19, peristaltic pump; 20, chuck; 21, pH transmitter; 22, DO transmitter.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
The structure of the structure of the synchronous enzymatic hydrolysis and fermentation alcohol fuel of the utility model stalk loop reactor as shown in Figure 1, mainly comprise: 50～100000L mechanical agitation type fermentor tank 1, air cleaning unit 2, Ceramic excessive filtration membrane separation unit 13, steam generation device 3, the temperature controlling system that comprises heating water tank 18, distillation tower 4, lower computer Controlling System 5, Monitor Computer Control System 6 and supporting piping system, valve, sensor and instrumental system, be arranged at the stainless steel fie screen 14 of stainless steel tube interior 15, speed regulator 7 and agitator motor 8, pressure pump 9, peristaltic pump 19, the chuck 20 at mechanical agitation type fermentor tank 1 outer wall place, PH transmitter 21 and DO transmitter 22 etc.The upper end of mechanical agitation type fermentor tank 1 is provided with opening for feed 10 and feedback outlet 11, the lower end is provided with fermentation residue relief outlet 12, the upper end of Ceramic excessive filtration membrane separation unit 13 links to each other with the feedback outlet 11 of mechanical agitation type fermentor tank 1 upper end, and the lower end links to each other with the fermentation residue relief outlet 12 of mechanical agitation type fermentor tank 1 lower end.
The disclosed loop reactor of the utility model has adopted a 30 * 30mm～500 * 500mm stainless steel fie screen that fermented liquid is carried out initial filter in the fermentor tank bottom, by 0.098MPa～4.0MPa pressure pump, squeeze into φ 50 * 5500mm tubular type zirconia ceramics ultra-filtration membrane device and filter, this ultra-filtration membrane has holds back yeast cell and macromolecular ability from fermented liquid, small molecules ethanol and fermented liquid enter in the alcohol distillation tower by ceramic super-filtering film, and macromole cellulase, zytase and the yeast refluxing of holding back continues to use in fermentor tank.It is 0.05～10 μ m that this ultra-filtration membrane membrane pore size requires, and pressure requires to remain on 0.05～0.5MPa.
The stainless steel fie screen is installed on the centre of fermentor tank submerged fermentation sludge discharge tube upper flange 16 and lower flange 17 junctions or is installed in 16 li of the upper flanges of lower upper flange, is convenient to dismounting, cleans and changes.Zirconia ceramics ultra-filtration membrane device directly is positioned in the stainless steel tube, rotates the stainless steel tube upper valve, can take out or the placing ceramic ultra-filtration membrane.
The air flow of the disclosed mechanical agitation type fermentor tank of the utility model should be stabilized in 0.1～3(V/V/min).Keep tank pressure 0.11～0.12MPa during the fermentor tank sterilization, keep tank pressure 0.03～0.05MPa during cooling; Air-purification system requires air flow 10～500L/min, pressure 0.25～0.8MPa.Steam generating system requires steam research on maximum utilized quantity (sterilization with) to be about 10kg/h, pressure 0.25～0.85MPa, low-pressure steam pressure (purifying usefulness) 0.16～0.5 MPa.
After ferment filtrate flowed into the alcohol distillation tower, chuck heated up, and holding temperature is 85～90 ℃, distills out alcohol.
Stalk through pre-treatment, sterilising treatment, two enzyme enzymatic hydrolysis and fermentation, fermented liquid and alcohol through ultra-filtration membrane separate, fermented liquid recycling, alcohol distillation, feed supplement enzymatic hydrolysis and fermentation again, membrane sepn, fermented liquid recycling, alcohol redistillation, row's residue, cyclic production.The method can reduce the consumption of cellulase and yeast so that the bacterium liquid recycle of rich cellulose enzyme and yeast, reduces production costs, and improves alcohol getting rate.Waste residue after the fermentation can also through processing, produce the required protein fodder of livestock industry again.
In order further to set forth related material and the technique of the technical solution of the utility model, provided following examples, but these embodiment do not limit scope of the present utility model in any form.
Embodiment 1:
(1) pulverize: after fresh broomcorn straw is cleaned, pulverize with the hay cutter cutting or with beater grinder, be screened into the straw powder of 40mm, moisture control is below 55%.
(2) biological process pre-treatment: the broomcorn straw powder carries out lignin degradation through white-rot fungi to be processed.
(3) sterilization: the broomcorn straw powder circulating integrated reactor of packing into is carried out high-temperature sterilization, 121 ℃, the 30min sterilising treatment.
(4) double enzymes saccharification, fermentation: the mixing solutions that sprays cellulase, zytase and yeast saccharomyces cerevisiae from the fermentor tank top downwards, activity is 1.5% of stalk weight for the add-on of the cellulase of 1000IU/g, activity is that the yeast saccharomyces cerevisiae add-on of 6,000,000,000/g is 1% of stalk weight, the add-on of water is 2.5 times of straw powder weight, enzymolysis, leavening temperature are controlled at 37 ℃, pH is 4.5, and mixing speed is controlled at 30rpm; 2.5 days enzymatic hydrolysis and fermentation total times, when no longer changing, finishes residual sugar fermentation.
(5) filtering fermentation liquor: pass into aseptic compressed air from the fermentor tank top, the fermented liquid that contains cellulase and yeast after preliminary filtration of finly filtration net of pot bottom, is discharged from leakage fluid dram by fermentation;
(6) Ceramic excessive filtration membrane sepn: the fermented liquid of discharging from the fermentor tank bottom is through pressure pump, squeeze into the pipeline that the zirconia ceramics ultra-filtration membrane is housed, separate with micromolecular through macromole, small molecules ethanol is through the micropore of ceramic super-filtering film inside and side, lower outlet by membrane separation unit is discharged in the alcohol distillation tower, and the macromole cellulase, zytase and the yeast refluxing that have not utilized are in fermentor tank.
(7) feed supplement double enzymes saccharification, fermentation: add a certain amount of straw powder from opening for feed, under the effect of the fermented liquid of rich cellulose enzyme, zytase and yeast, substratum continues enzymolysis and becomes reducing sugar, is fermented into alcohol.
(8) distillation: filtrate flows into the alcohol distillation tower, and chuck heats up, and temperature is 88 ℃, distillation, and alcohol getting rate reaches 8.5%.
(9) deslagging: fed-batch fermentation is after 2.5 days, and after the pipeline of process pressure pump and ceramic super-filtering film separated, small molecules filtrate was discharged to the distillation tower distillation, and residual macromole cellulase and yeast refluxing can utilize in fermentor tank again.Fermentation residue is discharged through the fermentor tank bottom.
Embodiment 2:
(1) pulverize: after fresh maize straw is cleaned, pulverize with the hay cutter cutting or with beater grinder, be screened into the straw powder of 30mm, moisture control is 50%.
(2) biological process pre-treatment: corn stalk powder carries out lignin degradation through white-rot fungi to be processed.
(3) sterilization: the corn stalk powder circulating integrated reactor of packing into is carried out high-temperature sterilization, 121 ℃, the 30min sterilising treatment.
(4) double enzymes saccharification, fermentation: the mixing solutions that sprays cellulase, zytase and yeast saccharomyces cerevisiae from the fermentor tank top downwards, activity is 2% of stalk weight for the add-on of the cellulase of 1000IU/g, activity is that the yeast saccharomyces cerevisiae add-on of 8,000,000,000/g is 0.8% of stalk weight, the add-on of water is 2.5 times of straw powder weight, enzymolysis, leavening temperature are controlled at 38 ℃, pH is 4.5, and mixing speed is controlled at 40rpm; 3 days enzymatic hydrolysis and fermentation total times, when no longer changing, finishes residual sugar fermentation.
(5) filtering fermentation liquor: pass into aseptic compressed air from the fermentor tank top, the fermented liquid that contains cellulase and yeast after preliminary filtration of filtering net of pot bottom, is discharged from leakage fluid dram by fermentation;
(6) Ceramic excessive filtration membrane sepn: the fermented liquid of discharging from the fermentor tank bottom is through pressure pump, squeeze into the pipeline that the zirconia ceramics ultra-filtration membrane is housed, separate with micromolecular through macromole, small molecules ethanol is through the micropore of ceramic super-filtering film inside and side, lower outlet by membrane separation unit is discharged in the alcohol distillation tower, and the macromole cellulase, zytase and the yeast refluxing that have not utilized are in fermentor tank.
(7) feed supplement double enzymes saccharification, fermentation: add a certain amount of straw powder from opening for feed, under the effect of the fermented liquid of rich cellulose enzyme, zytase and yeast, substratum continues enzymolysis and becomes reducing sugar, is fermented into alcohol.
(8) distillation: filtrate flows into the alcohol distillation tower, and chuck heats up, and temperature is 88 ℃, distillation, alcohol getting rate 7.8%.
(9) deslagging: fed-batch fermentation is after 3 days, and after the pipeline of process pressure pump and ceramic super-filtering film separated, small molecules filtrate was discharged to the distillation tower distillation, and residual macromole cellulase and yeast refluxing can utilize in fermentor tank again.Fermentation residue is discharged through the fermentor tank bottom.
Embodiment 3:
(1) pulverize: after fresh rice straw is cleaned, pulverize with the hay cutter cutting or with beater grinder, be screened into the straw powder of 30mm, moisture control is 53%.
(2) biological process pre-treatment: the rice straw powder carries out lignin degradation through white-rot fungi to be processed.
(3) sterilization: the rice straw powder circulating integrated reactor of packing into is carried out high-temperature sterilization, 121 ℃, the 30min sterilising treatment.
(4) double enzymes saccharification, fermentation: the mixing solutions that sprays cellulase, zytase and yeast saccharomyces cerevisiae from the fermentor tank top downwards, activity is 2% of stalk weight for the add-on of the cellulase of 1000IU/g, activity is that the yeast saccharomyces cerevisiae add-on of 8,000,000,000/g is 1% of stalk weight, the add-on of water is 2 times of straw powder weight, enzymolysis, leavening temperature are controlled at 36 ℃, pH is 4.5, and mixing speed is controlled at 30rpm; 3 days enzymatic hydrolysis and fermentation total times, when no longer changing, finishes residual sugar fermentation.
(5) filtering fermentation liquor: pass into aseptic compressed air from the fermentor tank top, the fermented liquid that contains cellulase and yeast after preliminary filtration of filtering net of pot bottom, is discharged from leakage fluid dram by fermentation;
(6) Ceramic excessive filtration membrane sepn: the fermented liquid of discharging from the fermentor tank bottom is through pressure pump, squeeze into the pipeline that the zirconia ceramics ultra-filtration membrane is housed, separate with micromolecular through macromole, small molecules ethanol is through the micropore of ceramic super-filtering film inside and side, lower outlet by membrane separation unit is discharged in the alcohol distillation tower, and the macromole cellulase, zytase and the yeast refluxing that have not utilized are in fermentor tank.
(7) feed supplement double enzymes saccharification, fermentation: add a certain amount of straw powder from opening for feed, under the effect of the fermented liquid of rich cellulose enzyme, zytase and yeast, substratum continues enzymolysis and becomes reducing sugar, is fermented into alcohol.
(8) distillation: filtrate flows into the alcohol distillation tower, and chuck heats up, and temperature is 90 ℃, distillation, alcohol getting rate 7.5%.
(9) deslagging: fed-batch fermentation is after 3 days, and after the pipeline of process pressure pump and ceramic super-filtering film separated, small molecules filtrate was discharged to the distillation tower distillation, and residual macromole cellulase and yeast refluxing can utilize in fermentor tank again.Fermentation residue is discharged through the fermentor tank bottom.
Fermentation liquid circulation has utilized twice in the utility model specific embodiment, but is not limited to twice, can Reusability.The above only is preferred embodiment of the present utility model, not in order to limit the utility model.All any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. the synchronous enzymatic hydrolysis and fermentation alcohol fuel of stalk loop reactor, comprise 50～100000L mechanical agitation type fermentor tank (1), air cleaning unit (2), steam generation device (3), temperature controlling system, distillation tower (4), lower computer Controlling System (5), Monitor Computer Control System (6), sensor and instrumental system, speed regulator (7) and agitator motor (8), supporting piping system and valve, 0.098MPa～4.0MPa pressure pump (9), the upper end of described mechanical agitation type fermentor tank (1) is provided with opening for feed (10) and feedback outlet (11), and the lower end is provided with fermentation residue relief outlet (12); It is characterized in that: also comprise Ceramic excessive filtration membrane separation unit (13), the upper end of described Ceramic excessive filtration membrane separation unit (13) links to each other with the feedback outlet (11) of mechanical agitation type fermentor tank (1) upper end, and the lower end links to each other through the fermentation residue relief outlet (12) of pressure pump with mechanical agitation type fermentor tank (1) lower end.
2. the synchronous enzymatic hydrolysis and fermentation alcohol fuel of stalk according to claim 1 loop reactor, it is characterized in that: also comprise 30 * 30～500 * 500mm fie screen (14), described fie screen (14) is arranged at the fermentation residue relief outlet (12) of mechanical agitation type fermentor tank (1) lower end and locates.
3. the synchronous enzymatic hydrolysis and fermentation alcohol fuel of stalk according to claim 1 and 2 loop reactor, it is characterized in that: described Ceramic excessive filtration membrane separation unit (13) is comprised of the tubular type zirconia ceramics ultra-filtration membrane of 1～10 Φ 50 * 5500, and the membrane pore size of ceramic super-filtering film is 0.05 μ m～10 μ m.
4. the synchronous enzymatic hydrolysis and fermentation alcohol fuel of stalk according to claim 1 and 2 loop reactor, it is characterized in that: described Ceramic excessive filtration membrane separation unit (13) is wholy set in the stainless steel tube (15).
5. the synchronous enzymatic hydrolysis and fermentation alcohol fuel of stalk according to claim 2 loop reactor, it is characterized in that: described fermentation residue relief outlet (12) locates to be provided with upper flange (16) and lower flange (17), and described fie screen (14) is arranged at up and down flange connections or is arranged at upper flange (16) inner.
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| CN201320242635.3U CN203247263U (en) | 2013-05-08 | 2013-05-08 | Straw synchronized enzymolysis and fermentation fuel alcohol circulation reactor |
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| CN201320242635.3U CN203247263U (en) | 2013-05-08 | 2013-05-08 | Straw synchronized enzymolysis and fermentation fuel alcohol circulation reactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243023A (en) * | 2013-05-08 | 2013-08-14 | 江苏大学 | Circulating synchronous straw enzymatic hydrolysis fermentation fuel ethanol reactor and reaction method thereof |
| CN105886393A (en) * | 2014-09-09 | 2016-08-24 | 北京建筑大学 | Sequencing batch type dry anaerobic digestion device of kitchen wastes |
| CN110093379A (en) * | 2018-12-09 | 2019-08-06 | 百绿国际草业(北京)有限公司 | The method and apparatus of ethyl alcohol is prepared using kaoliang stalk |
-
2013
- 2013-05-08 CN CN201320242635.3U patent/CN203247263U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243023A (en) * | 2013-05-08 | 2013-08-14 | 江苏大学 | Circulating synchronous straw enzymatic hydrolysis fermentation fuel ethanol reactor and reaction method thereof |
| CN105886393A (en) * | 2014-09-09 | 2016-08-24 | 北京建筑大学 | Sequencing batch type dry anaerobic digestion device of kitchen wastes |
| CN110093379A (en) * | 2018-12-09 | 2019-08-06 | 百绿国际草业(北京)有限公司 | The method and apparatus of ethyl alcohol is prepared using kaoliang stalk |
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