CN103911280B - A kind of synthetic gas that simultaneously realizes ferments and the uncoupling membrane equipment be separated - Google Patents
A kind of synthetic gas that simultaneously realizes ferments and the uncoupling membrane equipment be separated Download PDFInfo
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- CN103911280B CN103911280B CN201410151439.4A CN201410151439A CN103911280B CN 103911280 B CN103911280 B CN 103911280B CN 201410151439 A CN201410151439 A CN 201410151439A CN 103911280 B CN103911280 B CN 103911280B
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- C—CHEMISTRY; METALLURGY
- 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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- C—CHEMISTRY; METALLURGY
- 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
- C12M25/00—Means for supporting, enclosing or fixing the microorganisms, e.g. immunocoatings
- C12M25/10—Hollow fibers or tubes
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- C—CHEMISTRY; METALLURGY
- 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
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/16—Hollow fibers
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- C—CHEMISTRY; METALLURGY
- 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
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
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- C—CHEMISTRY; METALLURGY
- 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
Abstract
The invention belongs to synthesizer fermentation and separation technology field, be specifically related to a kind of synthetic gas that simultaneously realizes and ferment and the uncoupling membrane equipment be separated.This equipment comprises main body retort, is provided with hollow fiber membrane bundle in main body retort, and main body retort top is provided with substratum import, seed liquor import, and bottom is provided with thief hole.The present invention increases contact area and the time of thalline and gas by hollow fiber membrane bundle, facilitates gas-liquid mass transfer more by force to a certain extent, adds the contact area of thalline and gas, and synthetic gas is fermented as far as possible completely.
Description
Technical field
The invention belongs to synthetic gas fermentation and separation technology field, be specifically related to a kind of synthetic gas that simultaneously realizes and ferment and the uncoupling membrane equipment be separated.
Background technology
Synthetic gas is a kind of containing CO ﹑ CO
2﹑ H
2﹑ CH
4﹑ N
2etc. the mixed gas of component, mainly come from the gasification of Mei ﹑ Shi You ﹑ Sheng Wu Zhi ﹑ organic waste etc., some comes from the industrial gaseous waste of steelworks.Along with population in the world constantly increases and industrialized continuous expansion, countries in the world increase severely to the demand of the energy.It is reported that last century increases 17 times with the wear rate that oil and coal are main energy sources, exploitation and the consumption of oil and coal increase the degree of natural resources and energy resources scarcity, estimate that the oil of 50 Nian Nei world deposits will be exhausted, caused significant environmental problem, this just makes people urgently seek a kind of environmental friendliness and the continuable renewable energy resources simultaneously.Alcohol fuel is a kind of desirable fuel substitute just, and ethanol calorific value is high, and combustion cleaning is pollution-free, has obtained at present and has used widely and industrial production application.Meanwhile, utilize synthetic gas anaerobically fermenting to produce ethanol and be considered to the engineer applied technology of a great potential and competitive power, action function and meaning a great.
Although synthetic gas anaerobically fermenting ethanol has multiple advantage and enthusiasm, still there is its bottleneck problem further developed of restriction, mainly comprise the low cell density of gas-liquid mass transfer Xian ﹑ and synthesis gas components to inhibited three aspects of enzyme.Wherein gas-liquid mass transfer has lowly been in the news the key constraints becoming and affect in synthetic gas anaerobically fermenting ethanol process, especially affects more outstanding in high cell density anaerobically fermenting ethanol.Reactor is carrier and the platform of fermentable, plays central role in bioprocesses, is also the key equipment realizing industrialization.In synthetic gas anaerobically fermenting ethanol, a good bio-reactor not only can improve gas-liquid mass transfer efficiency, reduces the accumulation of ethanol product, reduces product ethanol to the retardation of fermenting process and impact, can also remarkable increase yield.At present, the various types of bio-reactors be in the news are being on the increase, and mainly concentrate on gas liquid for the selection of bio-reactor and pass matter ﹑ substrate utilization and output obtains three aspects.It is fast-developing forward that the design and development of new-type bioreactor promotes synthetic gas anaerobically fermenting, is conducive to the realization of commercialization pattern.In addition, the new technology that design and researchp exploitation is adapted to ethanol fermentation production is also particularly important, and new production technology can be saved material and be reduced production cost, can make up the deficiency that fermentation reactor production application produces even to a certain extent.
Summary of the invention
The object of the present invention is to provide a kind of synthetic gas that simultaneously realizes to ferment and the uncoupling membrane equipment be separated, this equipment can improve gas-liquid mass transfer speed.
The present invention is by the following technical solutions:
Realize synthetic gas fermentation and the uncoupling membrane equipment be separated, comprise main body retort, be provided with hollow fiber membrane bundle in main body retort, main body retort top is provided with substratum import, seed liquor import, and bottom is provided with thief hole simultaneously.Hollow-fibre membrane beam diameter is 1/2 ~ 2/3 of main body retort diameter.
Substratum import is connected with substratum storage tank, and seed liquor import is connected with seeding tank, and thief hole is connected with membrane module.Substratum flask volume is 1/3 ~ 1/2 of main body retort volume, and storage tank number can be determined according to the actual requirements.
The nol outlet of membrane module is connected with penetrating fluid storage tank, and the fermented liquid import of membrane module returns main body retort.Membrane module adopts silicone rubber membrane, and the penetrating fluid storage tank volume be communicated with is 1/3 ~ 1/2 of membrane module volume, can extract part sample carry out content analysis by penetrating fluid reservoir bottom.
Seeding tank top is provided with inoculation mouth, gas discharge outlet, injection port, and the bottom in seeding tank is provided with gas distributor.
The base portion import of hollow fiber membrane bundle is connected with gas reservoir by pipeline, and the top exit of hollow fiber membrane bundle is connected with the gas distributor in seeding tank.
Pipeline is provided with under meter, vacuum breaker and membrane filter.Vacuum breaker prevents gas from refunding.
Thief hole place in main body retort is provided with cellular filter; Cellular filter aperture is 0.2um, prevents fermented liquid from carrying thalline and enters membrane module.
Gas reservoir is multiple, and the exit of gas reservoir is provided with gas distributor.Gas distributor is by computer regulating, and gas can arbitrarily be allocated, and is also not restricted to the kind of gas simultaneously.
The bottom of main body retort and seeding tank is equipped with blow-off valve.Seeding tank aspect ratio is designed to 4:1 ~ 6:1, and the diameter of gas distributor is 1/3 ~ 3/5 of seeding tank diameter, and the air vent aperture on gas distributor surface is 0.5 ~ 1.0mm.
The present invention arranges hollow fiber membrane bundle in main body retort, from gas reservoir synthetic gas after filtration film filter enter in main body retort flow from bottom to top with given pace through hollow fiber membrane bundle after filtering; Seed liquor from seeding tank to enter in main body retort and is attached to outside hollow fiber membrane bundle, such synthetic gas can contact with microorganism fully through hollow fiber membrane bundle from bottom to top, increase the contact area of thalline and gas, the residence time of gas in main body retort can be extended again when arranging lower airflow rate, being beneficial to gas transfer; Airtight in the use procedure of main body retort, the gas of unemployed synthetic gas or generation in fermenting process enters the gas distributor in seeding tank by the top exit of hollow fiber membrane bundle, make it recycle, and improves thalline to the adaptability of synthetic gas simultaneously; Fermentation liquor cellular filter in main body retort enters silicone rubber membrane assembly by thief hole after filtering, by the separation of ethanol in fermented liquid out and be pooled to penetrating fluid storage tank, rest part returns in main body retort by seed liquor import, realizes synthetic gas fermentation and separation of ethanol so simultaneously.
The present invention and existing installation are compared with technology, tool has the following advantages: on the one hand, make cell adsorption set respectively by hollow fiber membrane bundle and membrane module and remove product ethanol in time from mixed reaction product, reduce the retardance impact of ethanol on reaction, the time that the successive reaction increasing fermentation is carried out is beneficial to increase efficiency of pcr product, because hollow fiber membrane bundle increases contact area and the time of thalline and gas, facilitate gas-liquid mass transfer more by force to a certain extent; On the other hand, main body retort tail gas is capable of circulation to be filled with in seeding tank, not only can again utilize synthetic gas, reduce its discharge, and the adaptability of thalline to synthetic gas can be improved, be beneficial to thalline comparatively fast to grow and biofilm, shorten seed liquor adaptation time in the fermentation medium, improve ethanol fermentation production efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Synthetic gas fermentation and the uncoupling membrane equipment be separated is realized as shown in Figure 1, comprise main body retort 17, be provided with hollow fiber membrane bundle 9 in main body retort 17, main body retort 17 top is provided with substratum import 10, seed liquor import 18, and bottom is provided with thief hole 15.Hollow fiber membrane bundle 9 diameter is 1/2 ~ 2/3 of main body retort 17 diameter.
Substratum import 10 is connected with substratum storage tank 13 by under meter, pump, and seed liquor import 18 is connected with the liquid taking port 25 of seeding tank 31, and thief hole 15 is connected with silicone rubber membrane assembly 21 by pump, under meter.Substratum storage tank 13 volume is 1/3 ~ 1/2 of main body retort 17 volume, and substratum storage tank 13 number can be determined according to the actual requirements.
The nol outlet of silicone rubber membrane assembly 21 is connected with penetrating fluid storage tank 22, and the fermented liquid import of silicone rubber membrane assembly 21 returns main body retort 17.Penetrating fluid storage tank 22 volume is 1/3 ~ 1/2 of silicone rubber membrane assembly 21 volume, carries out content analysis by extracting part sample bottom penetrating fluid storage tank 22.
Seeding tank 31 top is provided with inoculation mouth 29, gas discharge outlet 30, injection port 28, and the bottom in seeding tank 31 is provided with gas distributor 26.
The base portion import of hollow fiber membrane bundle 9 by being provided with under meter, vacuum breaker 7 is connected with gas reservoir 1 with the pipeline of membrane filter 8, the top exit of hollow fiber membrane bundle 9 is connected with the gas distributor 26 in seeding tank 31.
Thief hole 15 place in main body retort 17 is provided with cellular filter 16; Cellular filter 16 aperture is 0.2um, prevents fermented liquid from carrying thalline and enters silicone rubber membrane assembly 21.
Gas reservoir 1 is multiple, and the exit of gas reservoir 1 is provided with gas distributor 5, and gas distributor 5 is regulated and controled by computer 4, and gas can arbitrarily be allocated, and is also not restricted to the kind of gas simultaneously.
The bottom of main body retort 17 and seeding tank 31 is equipped with blow-off valve 14.Seeding tank 31 aspect ratio is designed to 4:1 ~ 6:1, and the diameter of gas distributor 26 is 1/3 ~ 3/5 of seeding tank 31 diameter, and the air vent aperture on gas distributor 26 surface is 0.5 ~ 1.0mm.
Concrete operations are as follows:
Pump between substratum import 10 and substratum storage tank 13 is opened, substratum import 10 is opened, thief hole 15 and blow-off valve 14 are closed, and substratum inputs in main body retort 17 by pipeline by substratum import 10, close pump when substratum height reaches hollow fiber membrane bundle 9 upper end base portion.Then with certain flow rate, the seed liquor in seeding tank 31 is entered main body retort 17 inside by pipeline through inoculation mouth 18.Then, start-up simulation machine 4 also runs corresponding program, gas reservoir 1 is opened, vacuum breaker 7 is opened, fermentation getting up early phase gas supply flow velocity is 1/3 ~ 1/2 of normal fermentation phase gas flow velocity, when fermenting process proceeds to mycoderm formation time (determining according to different thalline), online flow velocity is adjusted to normal value.The top exit that in main body retort 17, residual gas flows through hollow fiber membrane bundle 9 enters gas distributor 26, gas forms minute gas bubble in gas distributor 26, bubble in seeding tank 31 on flowing and utilize, remaining waste gas will arrive seeding tank 31 top, and be discharged by the gas discharge outlet 30 that top is arranged.Seed liquor sample can be taken out from liquid taking port 25 at any time and carry out the tracking of thalli growth situation in seeding tank 31 working process.When fermenting process proceeds to certain hour, relevant ethanol test set can be utilized from the thief hole 15 sampling and measuring ethanol content bottom main body retort 17, open thief hole 15 and open pump when namely reaching relevant ethanol content (amount of alcohol that minimum inhibited reaction carries out), the fermented liquid of main body retort 17 inside is made to flow into silicone rubber membrane assembly 21 by pipeline, ethanol component in fermented liquid will be separated at this and be flowed into storage in penetrating fluid storage tank 22, and it is inner that the fermented liquid after being separated in addition will turn back to main body retort 17 with pipeline through inoculation mouth 18 again.Blow-off valve 14 can be opened after ethanol product fermenting process access node bundle and carry out main body retort 17 in time and clean.
The feature of the synthetic gas of testing in the present embodiment is: synthetic gas gaseous species and ratio are determined because of needs; Also can use synthetic gas or the industrial production waste gas of You Mei ﹑ Shi You ﹑ Sheng Wu Zhi ﹑ life organic waste gasification gained, as steel mill's waste gas etc. simultaneously.
Claims (1)
1. one kind realizes synthetic gas fermentation and the uncoupling membrane equipment be separated simultaneously, it is characterized in that: comprise main body retort, hollow fiber membrane bundle is provided with in main body retort, hollow-fibre membrane beam diameter is 1/2 ~ 2/3 of main body retort diameter, main body retort top is provided with substratum import, seed liquor import, and bottom is provided with thief hole; Substratum import is connected with substratum storage tank, and seed liquor import is connected with seeding tank, and thief hole is connected with membrane module; The nol outlet of membrane module is connected with penetrating fluid storage tank, and penetrating fluid storage tank volume is 1/3 ~ 1/2 of membrane module volume, and the fermented liquid import of membrane module returns main body retort; Seeding tank top is provided with inoculation mouth, gas discharge outlet, injection port, and the bottom in seeding tank is provided with gas distributor; The base portion import of hollow fiber membrane bundle is connected with gas reservoir by pipeline, and the top exit of hollow fiber membrane bundle is connected with the gas distributor in seeding tank; Pipeline is provided with under meter, vacuum breaker and membrane filter; Gas reservoir is multiple, and the exit of gas reservoir is provided with gas distributor; Thief hole place in main body retort is provided with cellular filter; The bottom of main body retort and seeding tank is equipped with blow-off valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151439.4A CN103911280B (en) | 2014-04-16 | 2014-04-16 | A kind of synthetic gas that simultaneously realizes ferments and the uncoupling membrane equipment be separated |
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| CN201410151439.4A CN103911280B (en) | 2014-04-16 | 2014-04-16 | A kind of synthetic gas that simultaneously realizes ferments and the uncoupling membrane equipment be separated |
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| CN103911280A CN103911280A (en) | 2014-07-09 |
| CN103911280B true CN103911280B (en) | 2015-12-30 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952451A (en) * | 2008-02-25 | 2011-01-19 | 科斯卡塔公司 | Ethanol recovery process and apparatus for biological conversion of syngas components to liquid products |
| CN102094048A (en) * | 2010-12-01 | 2011-06-15 | 中国科学院青岛生物能源与过程研究所 | Method and device for producing organic acid or alcohol by fermenting synthetic gas |
| CN103374592A (en) * | 2012-04-27 | 2013-10-30 | 北京信汇生物能源科技股份有限公司 | Method for producing ethanol through gaseous-phase substrate fermentation |
| CN203866311U (en) * | 2014-04-16 | 2014-10-08 | 河南农业大学 | Coupling film equipment capable of simultaneously realizing synthesis gas fermentation and separation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8609380B2 (en) * | 2012-01-06 | 2013-12-17 | Coskata, Inc. | Sulfide generation process and system for syngas fermentation |
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2014
- 2014-04-16 CN CN201410151439.4A patent/CN103911280B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952451A (en) * | 2008-02-25 | 2011-01-19 | 科斯卡塔公司 | Ethanol recovery process and apparatus for biological conversion of syngas components to liquid products |
| CN102094048A (en) * | 2010-12-01 | 2011-06-15 | 中国科学院青岛生物能源与过程研究所 | Method and device for producing organic acid or alcohol by fermenting synthetic gas |
| CN103374592A (en) * | 2012-04-27 | 2013-10-30 | 北京信汇生物能源科技股份有限公司 | Method for producing ethanol through gaseous-phase substrate fermentation |
| CN203866311U (en) * | 2014-04-16 | 2014-10-08 | 河南农业大学 | Coupling film equipment capable of simultaneously realizing synthesis gas fermentation and separation |
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| CN103911280A (en) | 2014-07-09 |
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