CN110479131A - A kind of gas circulating both culturing microalgae carbon sequestration benefit carbon reactor - Google Patents

A kind of gas circulating both culturing microalgae carbon sequestration benefit carbon reactor Download PDF

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Publication number
CN110479131A
CN110479131A CN201910754363.7A CN201910754363A CN110479131A CN 110479131 A CN110479131 A CN 110479131A CN 201910754363 A CN201910754363 A CN 201910754363A CN 110479131 A CN110479131 A CN 110479131A
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China
Prior art keywords
carbon
inner sleeve
shell
gas
gas circulating
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CN201910754363.7A
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Chinese (zh)
Inventor
葛保胜
王振波
孙治谦
尹永浩
张孟奇
孙新祖
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China University of Petroleum East China
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China University of Petroleum East China
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Priority to CN201910754363.7A priority Critical patent/CN110479131A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • 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
    • C12M29/06—Nozzles; Sprayers; Spargers; Diffusers
    • 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
    • C12M29/24—Recirculation of gas

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  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Biomedical Technology (AREA)
  • Sustainable Development (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Biotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The invention discloses a kind of gas circulating both culturing microalgae carbon sequestrations to mend carbon reactor, comprising: shell, inner sleeve, inlet tube, air inlet pipe, fixed bracket and gas recycling duct；Fixed bracket is installed, and fixed bracket bottom end is connected to interior of shell bottom end in shell；Inner sleeve is fixed on support bracket fastened top；The input end of inlet tube stretches out shell, and outlet end is protruded into inside inner sleeve；One end of air inlet pipe is connected to inner sleeve bottom of the tube, and the other end is connected to feeder；Described gas recycling duct one end is connected to the housing top end, and the other end is connected to the feeder；Further include: liquid outlet pipe, liquid outlet pipe are connected to shell bottom end；The present invention makes CO2It is substantially dissolved in liquid, improves carbon sequestration and mend carbon efficiencies.

Description

A kind of gas circulating both culturing microalgae carbon sequestration benefit carbon reactor
Technical field
The present invention relates to both culturing microalgae technical fields, more particularly to a kind of gas circulating both culturing microalgae carbon sequestration Mend carbon reactor.
Background technique
Microalgae is a kind of, full of nutrition, photosynthetic availability high autotroph widely distributed in land, ocean.Microalgae is thin Born of the same parents are metabolized polysaccharide, protein, the pigment etc. generated, have it very in fields such as food, medicine, genetic engineering, liquid fuels Good development prospect.Microalgae can use solar energy as a kind of photoautotroph, pass through the fixed titanium dioxide of photosynthesis Carbon, organic matter needed for synthesizing own metabolism.But microalgae photosynthesis autotrophy can not directly utilize gas CO2, but utilize With HCO3 -Solubility CO existing for form2.If directly adding food grade solid sodium bicarbonate into culture medium, can effectively mend Carbon source needed for micro algae growth, but food grade solid sodium bicarbonate higher cost are filled, and a large amount of addition solution cause in culture medium greatly Amount accumulation Na+, influence product quality.Currently, often using CO in microalga cultivation process2Carry out supplementary carbon source, it will training by pump It supports base time liquid and is delivered to carbon sequestration reactor, culture medium returns liquid and CO in the reactor2Hybrid reaction, then again by going back to liquid outlet Outflow, complete carbon sequestration process, and be further used for microalgae Cyclic culture (such as Fig. 1, wherein 1 be gas feed, 2 for liquid into Mouthful, 3 be gas liquid outlet).
At present frequently with microalgae carbon sequestration mend carbon reactor mainly pass through in the container of liquids and gases under a certain pressure, It is mixed by impacting with high pressure, makes gas CO2It is dissolved in culture medium.This carbon sequestration mends carbon reactor gas-liquid mixed low efficiency, instead It answers the residence time short, therefore, causes CO2It dissolves insufficient.According to surveying and determination, the type reactor CO2Fixed reaction efficiency is about 15- 25% or so.So about 75% or more CO2It is wasted, not only increases enterprise's production cost, while also into environment Additional discharges CO2, cause greenhouse effects.
Therefore, how to provide one kind can be by gas CO2It is completely dissolved in and forms soluble HCO in culture medium3 -, and supply The problem of the utilized carbon sequestration device of the photosynthetic growth of microalgae is those skilled in the art's urgent need to resolve.
Summary of the invention
In view of this, the present invention is provided with shell and inner sleeve, while feed liquor is arranged in the part close to top inside the shell Pipe, the part in inner casing close to bottom end are arranged air inlet pipe, are sufficiently mixed by the gas that the liquid that top discharges is discharged with bottom, To make CO2It is substantially dissolved in liquid, improves carbon sequestration and mend carbon efficiencies.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of gas circulating both culturing microalgae mends carbon reactor with carbon sequestration, comprising: shell, inner sleeve, inlet tube, air inlet pipe, Fixed bracket and gas recycling duct；The fixed bracket is installed in the shell, and the fixed bracket bottom end with it is described The connection of interior of shell bottom end；The inner sleeve is fixed on the support bracket fastened top；The input end of the inlet tube stretches out institute Shell is stated, outlet end is protruded into inside the inner sleeve；One end of the air inlet pipe is connected to the inner sleeve bottom of the tube, the other end with Feeder connection；Described gas recycling duct one end is connected to housing top end, and the other end is connected to the feeder；Also wrap Include: liquid outlet pipe, the liquid outlet pipe are connected to the shell bottom end.
What above technical scheme reached has the technical effect that air inlet pipe extend into one end release CO of inner sleeve2, inlet tube stretches Enter to one end of inner sleeve and discharge liquid, and air inlet pipe is always positioned at inlet tube bottom end, when guaranteeing liquid release, due to gravity Effect, makes it sufficiently and gas mixing；Undissolved CO in a liquid2, operation is continued up, until gas recycling duct returns to confession Device of air continues cycling through utilization；Since support bracket fastened bottom end is connected to the inside of shell, when gas and liquid mixture spills into shell When, liquid outlet pipe can be flow to by connectivity part, increase the reaction time of gas and solution, to make CO2It sufficiently dissolves and turns It is changed to HCO3 -, more carbon sources are improved for microalgae.
As currently preferred technical solution, the inlet tube bottom end is equipped with shower nozzle.
What above technical scheme reached has the technical effect that shower nozzle can play the role of to liquid pressing, in liquid When flowing down, whirlpool sufficiently is formed with gas mixing, improves CO2Utilization rate；Due to shower nozzle basal diameter be greater than into The diameter of liquid pipe and air inlet pipe when guaranteeing under liquid flow, increases the contact area with gas, is further ensured that the abundant molten of gas Solution.
As currently preferred technical solution, the air inlet pipe includes air shooter, and with the air shooter The bubble of connection discharges pipe；Wherein, the air shooter is connected to the feeder；The bubble release pipe protrudes into described In inner sleeve.
What above technical scheme reached has the technical effect that air shooter discharges pipe for releasing for conveying gas, bubble It deflates and steeps.
As currently preferred technical solution, bubble release tube top end is equipped with bubble release head, the bubble Release head surface is provided with multiple stomatas.
What above technical scheme reached has the technical effect that bubble release head can convert the gas into bubble, increases and liquid The contact area of body, to improve the dissolution rate of gas.
As currently preferred technical solution, liquid pressing pump is fixed on the inlet tube.
As currently preferred technical solution, gas pressurized pump is fixed on the gas recycling duct.
What above technical scheme reached has the technical effect that liquid pressing pump can be with the flow velocity of pressurized liquid, to make liquid Bubble hard hit, with abundant dissolved gas；Gas pressurized pump can be such that gas is recycled in feeder.
As currently preferred technical solution, the internal diameter of the shell is 100mm；The outer diameter of the inner sleeve is 55mm。
What above technical scheme reached, which have the technical effect that, defines the diameter of shell and inner sleeve, guarantees inner sleeve and outer There are gaps for shells, so that the mixed liquor of spilling flows back in inner sleeve again.
As currently preferred technical solution, the height of the inner sleeve is 550mm.
As currently preferred technical solution, the structure of the bubble release head is commercially available micro-pore aeration stone, that is, will Micro-pore aeration stone is directly installed on the bottom end of bubble release pipe, and the length of the bubble release head is 50mm.
As currently preferred technical solution, it is 100mm that the inlet tube, which extend into the length in the inner sleeve,.
It can be seen via above technical scheme that compared with prior art, the present disclosure provides a kind of gas circulating is micro- Algae cultivation mends carbon reactor with carbon sequestration, which improves CO2Utilization rate, and make CO2Sufficiently dissolution, increases in solution Soluble HCO3 -Content, consequently facilitating to microalgae supplementary carbon source.
For gas circulating carbon sequestration reactor designed by the present invention under the conditions of different gas liquid ratios, carbon sequestration efficiency is in 43- 76% or so, have relative to the carbon sequestration reaction efficiency (about 15-25%) before transformation and significantly improves, about same gas liquid ratio item CO under part22 times of utilization efficiency.The present apparatus can significantly improve the CO of microalgae2Utilization efficiency reduces food-grade sodium bicarbonate Usage amount, reduce production cost, while substantially reducing the invalid spilling of microdisk electrode carbon dioxide in process, improve micro- The production efficiency of algae carbon sequestration has important Significance for Environment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing is the structural schematic diagram that carbon sequestration in the prior art mends carbon reactor；
Fig. 2 attached drawing is the main view that carbon sequestration provided by the invention mends carbon reactor；
Fig. 3 attached drawing is the structural schematic diagram that carbon sequestration provided by the invention mends carbon reactor.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
As shown in Fig. 2, the embodiment of the invention discloses a kind of gas circulating both culturing microalgae carbon sequestrations to mend carbon reactor, packet It includes: shell 1, inner sleeve 2, inlet tube 3, air inlet pipe 4, fixed bracket 5 and gas recycling duct 6；Wherein, it is equipped in shell 1 Fixed bracket 5, and fixed 5 bottom end of bracket is connected to 1 inner bottom of shell；Inner sleeve 2 is fixed on the top of fixed bracket 5；Into The input end of liquid pipe 3 stretches out shell 1, and outlet end is protruded into inside inner sleeve 2；One end of air inlet pipe 4 is connected to 2 bottom of inner sleeve, The other end is connected to feeder 7；6 one end of gas recycling duct is connected to 1 top of shell, and the other end is connected to feeder 7；
Further include: liquid outlet pipe 11, liquid outlet pipe 11 are connected to 1 bottom end of shell.
What upper technical solution reached has the technical effect that air inlet pipe extend into one end release CO of inner sleeve2, inlet tube protrudes into Liquid is discharged to one end of inner sleeve, and air inlet pipe is always positioned at inlet tube bottom end, when guaranteeing liquid release, due to the work of gravity With making it sufficiently and gas mixing；Undissolved CO in a liquid2, operation is continued up, until gas recycling duct returns to gas supply Device continues cycling through utilization；Since support bracket fastened bottom end is connected to the inside of shell, when gas and liquid mixture spills into shell When, it can be continued to flow to inner sleeve by connectivity part, increase the time of gas mixing, guarantee that gas is sufficiently solubilized；Inlet tube Position between liquid pressing pump and bottom end is equipped with fluid flowmeter, for controlling fluid flow.
Preferably, 3 bottom end of inlet tube is equipped with shower nozzle 31.
Have the technical effect that shower nozzle can increase liquid to a certain extent using what above-mentioned preferred technical solution reached The instantaneous pressure of body, to increase flow rate of liquid, under gravity, liquid collides with gas, so that gas be made to fill Divide dissolution.
Preferably, air inlet pipe 4 includes air shooter 41, and the bubble release pipe 42 connecting with air shooter 41, In, air shooter 41 is connected to feeder 7；Bubble release pipe 42 protrudes into inner sleeve 2；It is equipped on air shooter 41 Gas flowmeter.
It has the technical effect that air shooter is connect with feeder using what above-mentioned preferred technical solution reached, is convenient for Gas is conveyed, bubble release pipe protrudes into inner sleeve, flows gas in the space in inner sleeve and shell completely, prevent gas Body is flow in air.
Preferably, bubble release 42 top of pipe is equipped with bubble release head 43, and 43 surface of bubble release head is provided with multiple Stomata.
Have the technical effect that multiple stomatas, benefit is arranged in bubble release head surface using what above-mentioned preferred technical solution reached In converting the gas into bubble, and discharged.
Preferably, liquid pressing pump 32 is fixed on inlet tube 3.
Preferably, gas pressurized pump 61 is fixed on gas recycling duct 6.
Preferably, the internal diameter of shell 1 is 100mm；The outer diameter of inner sleeve 2 is 55mm.
Preferably, the height of inner sleeve 2 is 550mm.
Preferably, the length of bubble release head 43 is 50mm.
Preferably, it is 100mm that inlet tube 3, which extend into the length in inner sleeve 2,.
Use that above-mentioned preferred technical solution reaches have the technical effect that liquid pressing pump can with the flow velocity of pressurized liquid, To make liquid bubble hard hit, with abundant dissolved gas；Gas pressurized pump can be such that gas is recycled in feeder；Limit Determined the diameter of shell and inner sleeve, guaranteed inner sleeve and outer casing member there are gap, flowed back to again for the mixed liquor of spilling in In casing.
Carbon reactor is mended using carbon sequestration disclosed in the present embodiment, different gas-liquids are detected with gas flowmeter and fluid flowmeter Carbon sequestration efficiency than under the conditions of, the results are shown in Table 1；
Table 1
As shown in Table 1, gas circulating carbon sequestration reactor provided in this embodiment is under the conditions of different gas liquid ratios, carbon sequestration effect Rate has greatly in 46-87% or so (attached testing result such as following table) relative to the carbon sequestration reaction efficiency (about 15-25%) before transformation The raising of width, CO under the conditions of about same gas liquid ratio23 times of utilization efficiency.The present apparatus can significantly improve the CO of microalgae2Benefit With efficiency, reduce the usage amount of food-grade sodium bicarbonate, reduce production cost, while during substantially reducing microdisk electrode The invalid spilling of carbon dioxide, improves the production efficiency of microalgae carbon sequestration, has important Significance for Environment.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (10)

1. a kind of gas circulating both culturing microalgae with carbon sequestration mend carbon reactor characterized by comprising shell (1), inner sleeve (2), Inlet tube (3), air inlet pipe (4), fixed bracket (5) and gas recycling duct (6)；
Wherein, the fixed bracket (5), and fixed bracket (5) bottom end and the shell are installed in the shell (1) (1) inner bottom is connected to；The inner sleeve (2) is fixed on the top of the fixed bracket (5)；
The input end of the inlet tube (3) stretches out the shell (1), and it is internal that the inner sleeve (2) is protruded into outlet end；
One end of air inlet pipe (4) is connected to the inner sleeve (2) bottom, and the other end is connected to feeder (7)；
Described gas recycling duct (6) one end is connected to the shell (1) top, and the other end is connected to the feeder (7)；
Further include: liquid outlet pipe (11), the liquid outlet pipe (11) are connected to the shell (1) bottom end.
2. a kind of gas circulating both culturing microalgae according to claim 1 mends carbon reactor with carbon sequestration, which is characterized in that described Inlet tube (3) bottom end is equipped with shower nozzle (31).
3. a kind of gas circulating both culturing microalgae according to claim 2 mends carbon reactor with carbon sequestration, which is characterized in that described Air inlet pipe (4) includes air shooter (41), and the bubble release pipe (42) connecting with the air shooter (41)；
Wherein, the air shooter (41) is connected to the feeder (7)；The bubble release pipe (42) is protruded into described In casing (2).
4. a kind of gas circulating both culturing microalgae according to claim 3 mends carbon reactor with carbon sequestration, which is characterized in that described Bubble release pipe (42) top is equipped with bubble release head (43), and bubble release head (43) surface is provided with multiple stomatas.
5. a kind of gas circulating both culturing microalgae according to claim 4 mends carbon reactor with carbon sequestration, which is characterized in that described The length of bubble release head (43) is 50mm.
6. a kind of gas circulating both culturing microalgae according to claim 1 mends carbon reactor with carbon sequestration, which is characterized in that described Liquid pressing pump (32) is fixed on inlet tube (3).
7. a kind of gas circulating both culturing microalgae according to claim 1 mends carbon reactor with carbon sequestration, which is characterized in that described Gas pressurized pump (61) is fixed on gas recycling duct (6).
8. a kind of gas circulating both culturing microalgae according to claim 1 mends carbon reactor with carbon sequestration, which is characterized in that described The internal diameter of shell (1) is 100mm；The outer diameter of the inner sleeve (2) is 55mm.
9. a kind of gas circulating both culturing microalgae according to claim 1 mends carbon reactor with carbon sequestration, which is characterized in that described The height of inner sleeve (2) is 550mm.
10. a kind of -9 any gas circulating both culturing microalgaes mend carbon reactor with carbon sequestration according to claim 1, feature exists In it is 100mm that the inlet tube (3), which extend into the length in the inner sleeve (2),.
CN201910754363.7A 2019-08-15 2019-08-15 A kind of gas circulating both culturing microalgae carbon sequestration benefit carbon reactor Pending CN110479131A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114570295A (en) * 2022-03-25 2022-06-03 上海吉量医药工程有限公司 Method for rapidly preparing triethylamine carbonate buffer solution

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CN106607004A (en) * 2015-10-21 2017-05-03 中国石油化工股份有限公司 Circulation mixer and application thereof
CN108359580A (en) * 2018-02-28 2018-08-03 清华大学深圳研究生院 A kind of microvesicle bioreactor for economic microdisk electrode
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