CN106622045A - Method and device for improving reaction efficiency of bubble tower by micro-nano bubbles - Google Patents
Method and device for improving reaction efficiency of bubble tower by micro-nano bubbles Download PDFInfo
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- CN106622045A CN106622045A CN201611077138.7A CN201611077138A CN106622045A CN 106622045 A CN106622045 A CN 106622045A CN 201611077138 A CN201611077138 A CN 201611077138A CN 106622045 A CN106622045 A CN 106622045A
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- 239000002101 nanobubble Substances 0.000 title claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000007789 gas Substances 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000012071 phase Substances 0.000 claims abstract description 9
- 239000012295 chemical reaction liquid Substances 0.000 claims abstract description 4
- 230000005587 bubbling Effects 0.000 claims description 43
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims 1
- 230000036186 satiety Effects 0.000 claims 1
- 235000019627 satiety Nutrition 0.000 claims 1
- 239000012495 reaction gas Substances 0.000 abstract 1
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 12
- 239000007791 liquid phase Substances 0.000 description 12
- 238000002156 mixing Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000004581 coalescence Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000008246 gaseous mixture Substances 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 241000272517 Anseriformes Species 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910002668 Pd-Cu Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- OQICUELKMVKCFT-UHFFFAOYSA-N acetaldehyde;ethene Chemical compound C=C.CC=O OQICUELKMVKCFT-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010523 cascade reaction Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
- B01J10/002—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor carried out in foam, aerosol or bubbles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
- B01F23/2311—Mounting the bubbling devices or the diffusers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/48—Mixing water in water-taps with other ingredients, e.g. air, detergents or disinfectants
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Organic Chemistry (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to a method and a device for improving reaction efficiency of bubble tower by micro-nano bubbles. The device comprises a micro-nano bubble generation system (A) and a bubble tower reactor (B). The micro-nano bubble generation system (A) comprises a gas compressor (1), a pressure gas dissolving tank (2), a pressurizing water pump (3) and a releaser (4). An outlet of the gas compressor (1) is connected with a gas inlet of the pressure gas dissolving tank (2), and an outlet of the pressurizing water pump (3) is connected with a water inlet of the pressure gas dissolving tank (2). A water outlet of the pressure gas dissolving tank (2) is connected with the releaser (4) through a gas dissolved water inlet (5) at the lower end of the tower lateral side of the bubble tower reactor (B), and the releaser (4) is positioned at the inner bottom end of the bubble tower reactor (B). The bottom of the bubble tower reactor (B) is provided with an original liquid inlet (6), the upper end of the bubble tower reactor (B) is provided with a liquid outlet (7), and the top of the bubble tower reactor (B) is provided with a gas outlet (8). By complete contact of a reaction gas phase and a reaction liquid phase, reaction efficiency of the bubble tower is improved.
Description
Technical field
The present invention relates to gas and liquid phase course of reaction, is related to micro-nano generating means and bubbling column reactor, more particularly to one
The device and method that bubble tower reaction efficiency is improved using micro-nano bubble is planted, the fields such as oil refining, chemical industry, environmental protection are can be widely used for
The process engineering such as distillation, absorption, washing, air lift.
Background technology
Bubbling reactor liquid is continuous phase, and gas is dispersion phase, and it has movement-less part, simple structure, thermal capacity
Greatly, good heat-transfer, easy control of temperature and it is safe the advantages of.But in more than superficial gas velocity 5cm/s, with stingy
Bubble is constantly merged into air pocket and air pocket constantly ruptures, and reactor flow pattern enters turbulent area by uniform bubble flow, and gas is to tower
Center is assembled, therefore low density area occurs in tower center, and liquid parabolic type VELOCITY DISTRIBUTION, i.e. tower center liquid occurs upwards in tower
Flowing, near wall region flows downward, and causes the circulation of liquid in tower.The liquid phase axial backmixing coefficient of bubble tower is proportional to superficial gas velocity
0.3～0.5 power and tower diameter 1.25～1.5 powers, for the bubble tower of 6 meters of a diameter, can reach complete back-mixing
Degree.However, back-mixing is unfavorable for the reaction with series connection step.For example, it is to reduce returning for reactant mixture
Mixed, industrial catalytic oxidation of cyclohexane reaction adopts plural serial stage mode, to limit the time of staying of oxidation product, it is to avoid reaction is produced
The deep oxidation of thing, so as to improve selectivity and the yield of purpose product.Do not only have hydrocarbon oxidation with cascade reaction feature,
Also selective hydrogenation, take a support synthesis etc. system.
In order to improve the flow regime of bubbling reactor, the solution for generally adopting is the radially installed polylith gear in tower
Plate or sieve plate.The effect of baffle plate is to force the fluid along baffling path flows, it is to avoid short circuit.Sieve plate can effectively to the liquid in tower
Redistribution, release rate distribution are played a part of in body flowing.But in HTHP or in the presence of having solid catalyst, then occur
Many problems such as sintering, blocking, heated bending deformation, cleaning difficulty, have a strong impact on the carrying out of reaction.
In order to reduce the back-mixing of bubble tower, people have carried out various improvement to bubbling tower structure, but all adopt in tower substantially
The interior method that inner member is set.For example, Chinese invention patent CN104587943A discloses one kind by multipair pillow formula heat transfer plate pair
New interior heat exchange element in cylindrical arrangement composition, pillow formula heat transfer plate is some to whole reaction system space uniform is separated into
Individual passage, serves effective guide functions, and the back-mixing of liquid material is reduced to a certain extent, improves the choosing of reaction result
Selecting property.Chinese invention patent CN102580630A proposes a kind of bubbling column reactor of reinforcing acetylene dimer, in bubble tower
Connect 2～8 pieces of baffle plates on wall, baffle plate can reduce the back-mixing of acetylene gas for circular, rectangle or polygon, make whole acetylene
The mean concentration of gas is improved, and accelerates acetylene dimer reaction rate.But liquid velocity measure of spread shows, install after inner member to the greatest extent
Pipe declines can center speed, but the liquid at wall still flows downward, and velocity magnitude with without identical during inner member.
Therefore, this structure can only to a certain extent reduce the backmixing of liquid phase in tower, and it is little to take effect.
From unlike above method, Chinese invention patent CN103819380A proposes a kind of multiple stage bubbling column reactor
The hydrogen peroxide of series connection generates new method to Meng's alkane, and the series connection of multiple stage bubbling column reactor defines the very big horizontal sliding of draw ratio
Flow reactor, is conducive to eliminating the impact that back-mixing carrys out reaction zone, improves the time of contact of gas-liquid phase reaction, improves turning for reaction
Rate.But this method is simply simple by the series connection of multiple stage bubbling column reactor, weakens the impact that back-mixing brings, without from root
Backmixing of liquid phase is solved the problems, such as in sheet.Meanwhile, the series connection of multiple stage bubble tower increased cost of investment, it is difficult in extensive industrialization
Apply in journey.It can be seen that, although people have done substantial amounts of research work in terms of bubble tower, but still the method for effect is found no preventing
Only backmixing of liquid phase in tower.
The content of the invention
The invention aims to solve that bubble coalescence, backmixing of liquid phase that current bubbling column reactor is present are serious etc. to ask
Topic, and a kind of device and method that bubble tower reaction efficiency is improved using micro-nano bubble is provided.
In order to solve above-mentioned technical problem, the present invention is achieved by the following technical solutions：
A kind of device for strengthening bubble tower reaction efficiency using micro-nano bubble, it is characterised in that：Device includes micro-nano
There is system A and bubbling column reactor B in bubble；There is system A by gas compressor 1, pressure air-dissolving tank 2, increasing in micro-nano bubble
Water pump 3 and release 4 are constituted；The outlet of gas compressor 1 is connected with the air inlet of pressure air-dissolving tank 2, and booster water pump 3 goes out
Mouth is connected with the water inlet of pressure air-dissolving tank 2, and the delivery port of pressure air-dissolving tank 2 passes through bubbling column reactor B tower bodies side lower end
The dissolved air water entrance 5 being provided with is connected with the release 4 of the inner bottom positioned at bubbling column reactor B；Bubbling column reactor B bottoms
Stoste entrance 6 is provided with, upper end is provided with liquid outlet 7, and top is provided with gas vent 8.
Present invention also offers a kind of method for improving bubble tower reaction efficiency using above-mentioned device, its concrete steps is such as
Under：
1) gas compressor 1 and booster water pump 3 are opened, respectively reacting gas and water is sent into pressure air-dissolving tank 2；
2) pressure of pressure air-dissolving tank 2 is maintained into 0.3～0.6MPa, reacting gas is well mixed with water, formed
Saturated dissolved gas water；
3) dissolved air water is supersaturated by the delivery port of pressure air-dissolving tank 2 by pipeline, through dissolved air water entrance 5 release is reached
At 4, in the bottom of bubbling column reactor B substantial amounts of micro-nano bubble is produced；
4) stoste entrance 6 is opened, reaction liquid phase enters bubbling column reactor, fills with the micro-nano bubble rich in reacting gas
Tap is touched, and is reacted in bubbling column reactor；
5) reacted liquid is discharged by liquid outlet 7, and reacted gas from gas outlet 8 is discharged.
Bubbling column reactor is consistent with existing bubbling tower apparatus design requirement, and ratio of height to diameter is preferably 3:1～12:1, preferred drum
In 0.03m/s～0.4m/s, at 20～150 DEG C, absolute pressure is preferably temperature control empty tower gas velocity in bubble tower reactor
0.1MPa～0.5MPa.
The reacting gas that gas compressor is blasted is the gas such as air, oxygen, ethene, acetylene, ozone, hydrogen or carbon dioxide
Body, gas compressor also can blast device and substitute with gases such as gas cylinder, gas pump, bus-bar or air blasts.
There is the micro-nano bubble diameter of system generation between 5 μm～100 μm in micro-nano bubble, micro-nano bubble occurs
Mode can also be using methods such as micropore gas distribution, Impeller trim, flow type pump with injection and electrolysis analysis.
The method have the benefit that：
1st, compared to common blister, micro-nano bubble is less due to own vol, and its suffered buoyancy in water is also corresponding
It is less, show slow rising characteristic.The rate of climb that such as a diameter of 10 μm of micro-nano gas ducks in drink is 3mm/
Min, the 1/2000 of only a diameter of 1mm bubbles.Due to slow rising characteristic, it is to avoid the generation of backmixing of liquid phase phenomenon, pole
The big stability that improve bubbling column reactor.
2nd, because micro-nano bubble diameter is much smaller than common blister, relative to the volume of micro-nano bubble, its specific surface area
It is very big, the contact area of liquid phase and gas phase is significantly increased, while micro-nano bubble is not susceptible to the coalescence of common blister
Phenomenon, improves the mass-transfer efficiency of bubbling column reactor.
3rd, on the basis of effect 2, because the diameter of micro-nano bubble is less, affected by capillary, inside bubble
Pressure much larger than environmental liquids pressure, be produced from pressurized effect so as to compress bubble internal gas, promote inside bubble
Gas be dissolved into liquid phase through gas-liquid interface, so as to effectively increase the mass-transfer efficiency of gas-liquid interface.
4th, the present invention only needs for the existing gas distributor of bubble tower to be replaced with micro-nano bubble generation system, to bubble tower
The overall structure of reactor does not have big change, is equally applicable to existing bubbling column reactor, and reconstruction and operating cost are low.
Description of the drawings
Fig. 1 is that, using the micro-nano bubble bubble tower schematic device of pressure air-dissolving method, A is micro-nano bubble system
System, B be bubbling column reactor, 1 be gas compressor, 2 be pressure air-dissolving tank, 3 be booster water pump, 4 be release, 5 be molten gas
Water inlet, 6 be stoste entrance, 7 be liquid outlet, 8 be gas vent.
Specific embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated.
Embodiment 1
Reference Fig. 1, a kind of device for strengthening bubble tower reaction efficiency using micro-nano bubble, including：Micro-nano bubble is sent out
Raw system A and bubbling column reactor B.The micro-nano bubble occurs system A to be included gas compressor 1, pressure air-dissolving tank 2, increases
Water pump 3, release 4.Bubbling column reactor B tower bodies bottom is provided with dissolved air water entrance 5, stoste entrance 6, and top is provided with liquid discharge
Mouth 7 and gas vent 8.Gas compressor is connected with the air inlet of pressure air-dissolving tank, and booster water pump enters water with pressure air-dissolving tank
Mouth is connected, and the water outlet pipeline of pressure air-dissolving tank is entered in bubbling column reactor through dissolved air water entrance, anti-with bubble tower is placed in
The release for answering device bottom is connected.
According to the device connected mode of Fig. 1, reacting gas and water enter pressure by gas compressor and booster water pump respectively
In power dissolving, supersaturation dissolved air water is formed in pressure air-dissolving tank.Supersaturation dissolved air water is through dissolved air water entrance in release
Place's decompression discharges a large amount of stable micro-nano bubbles, and reactant liquor is entered in bubbling column reactor by stoste entrance, anti-with being rich in
The micro-nano bubble for answering gas is fully contacted, and is reacted.Bubbling column reactor is heated by external chuck, and control bubble tower is anti-
The temperature in device, reacted liquid is answered to be discharged by liquid outlet, reacted gas from gas outlet is discharged.
Embodiment 2
The present embodiment is probed into bubbling column reactor backmixing of liquid phase situation.Under conditions of normal temperature and pressure, with air
Tested as air-liquid medium with water, pressure air-dissolving tank internal pressure power is maintained at 0.3MPa, using TV-I type dissolved air releases,
Produce micro-nano bubble size to concentrate between 5 μm～30 μm, in bubble tower empty tower gas velocity be 0.03m/s, bubbling column reactor
High 2000mm, internal diameter 280mm, hydrostatic height 1500mm.Make tracer from KC1 concentrated solutions, normally run bubble tower is kept
Under state, using an impulses injection method, from the injection of dissolved air water porch moment, and use conductivity meter real-time in liquid outlet
Detection, as a result shows, backflow coefficient maintains 0.017cm2/s。
Under the same conditions, it is 2mm from aperture, percent opening is that 0.5% Perforated plate distributor is contrast experiment, is as a result shown
Show, the backflow coefficient of system is in 0.05cm2/ s or so.By this example demonstrates that, micro-nano bubble occurs system can be effective
Solve the problems, such as bubble tower backmixing of liquid phase, stable course of reaction.
Embodiment 3
The present embodiment is intended to improve the reaction yield of ethylene acetaldehyde, bubbling column reactor chi using micro-nano bubble
Very little such as embodiment 1, hydrostatic is highly 1600mm.Using main component as ethene and oxygen gaseous mixture as gas medium, with water
Tested as liquid medium.Wherein, in gaseous mixture ethylene contents control 65～75%, oxygen content control 5～
8%, pressure air-dissolving pressure tank is maintained at 0.6MPa.Supersaturation dissolved air water is produced big in bubbling column reactor lower end by release
The stable micro-nano bubble of amount, bubble size is concentrated between 60 μm～90 μm, reaction mixture gas body void tower in the reactor
Linear velocity is 0.37m/s, and the micro-nano bubble rich in ethene and oxygen is fully contacted with reaction liquid phase and catalyst, and reaction is generated
Thick acetaldehyde solution through liquid outlet enter follow-up distillation process.Wherein, the reaction pressure of bubbling column reactor from
0.38MPa changes to 0.48MPa (absolute pressure), and reaction temperature is controlled at 125 DEG C, using Pd-Cu solution as the catalyst of reaction.
The thick acetaldehyde solution that reaction is generated is analyzed, and then calculates the yield of overall reaction acetaldehyde.As a result show, mould
Intend existing bubbling tower apparatus flow process, the average yield of acetaldehyde is 90% or so, if adding micro-nano bubble generator, acetaldehyde
Average yield can improve 3.7%.It is obvious from practical function from the point of view of the actual motion of acetaldehyde device.
The present invention is not limited to the technology described in embodiment, and the description in embodiment is merely exemplary, and not limits
Property processed, the authority requirement of having the right of the present invention is limited, and to be changed according to the present invention based on those skilled in the art, be weighed
The technology related to the present invention that the methods such as Combination nova are obtained, all within the scope of the present invention.
Claims (7)
1. it is a kind of using micro-nano bubble strengthen bubble tower reaction efficiency device, it is characterised in that：Device includes micro-nano gas
The raw system that is soaked (A) and bubbling column reactor (B)；There is system (A) by gas compressor (1), pressure air-dissolving in micro-nano bubble
Tank (2), booster water pump (3) and release (4) composition；The air inlet phase of the outlet of gas compressor (1) and pressure air-dissolving tank (2)
Even, the outlet of booster water pump (3) is connected with the water inlet of pressure air-dissolving tank (2), and the delivery port of pressure air-dissolving tank (2) passes through bubbling
The dissolved air water entrance (5) that tower reactor (B) tower body side lower end is provided with is released with the inner bottom positioned at bubbling column reactor (B)
Put device (4) to be connected；Bubbling column reactor (B) bottom is provided with stoste entrance (6), and upper end is provided with liquid outlet (7), and top is provided with gas
Body exports (8).
2. a kind of method for improving bubble tower reaction efficiency using device as claimed in claim, it is comprised the following steps that：
1) gas compressor (1) and booster water pump (3) are opened, respectively reacting gas and water is sent into pressure air-dissolving tank (2)；
2) pressure of pressure air-dissolving tank (2) is maintained into 0.3～0.6MPa, reacting gas is well mixed with water, form satiety
And dissolved air water；
3) dissolved air water is supersaturated by the delivery port of pressure air-dissolving tank (2) by pipeline, through dissolved air water entrance (5) release is reached
(4) place, in the bottom of bubbling column reactor (B) substantial amounts of micro-nano bubble is produced；
4) stoste entrance (6) is opened, reaction liquid phase enters bubbling column reactor, abundant with the micro-nano bubble rich in reacting gas
Contact, is reacted in bubbling column reactor；
5) reacted liquid is discharged by liquid outlet (7), and reacted gas from gas outlet (8) is discharged.
3. method according to claim 2, it is characterised in that：Empty tower gas velocity in bubbling column reactor be 0.03m/s～
0.4m/s。
4. method according to claim 2, it is characterised in that：Reaction temperature in bubbling column reactor is 20～150 DEG C.
5. method according to claim 2, it is characterised in that：Absolute pressure in bubbling column reactor be 0.1MPa～
0.5MPa。
6. method according to claim 2, it is characterised in that：The reacting gas for blasting is air, oxygen, ethene or smelly
Oxygen.
7. it is according to claim 2 using micro-nano bubble strengthen bubble tower reaction efficiency method, it is characterised in that：Produce
Raw micro-nano bubble diameter is between 5 μm～100 μm.
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| CN201611077138.7A CN106622045A (en) | 2016-11-30 | 2016-11-30 | Method and device for improving reaction efficiency of bubble tower by micro-nano bubbles |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109046057A (en) * | 2018-08-23 | 2018-12-21 | 芜湖美的厨卫电器制造有限公司 | Micro bubble apparatus and water heater |
| CN110420609A (en) * | 2019-09-02 | 2019-11-08 | 南京中汇能源科技研发中心 | A kind of micro/nano-scale multiphase flow process intensification reaction unit |
| CN110433676A (en) * | 2019-07-19 | 2019-11-12 | 中北大学 | A kind of hypergravity micro bubble generation device and application method |
| CN110527008A (en) * | 2019-08-12 | 2019-12-03 | 浙江大学 | It is a kind of to prepare polyvinyl method using microbubble |
| WO2021249853A3 (en) * | 2020-06-11 | 2022-04-14 | Clean Power Hydrogen Limited | A gas dissolution and bubble generator system |
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| GB2307191B (en) * | 1995-11-15 | 1997-10-15 | Sumitomo Chemical Co | Multistage bubble column with perforated plates |
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| CN109046057B (en) * | 2018-08-23 | 2024-02-23 | 芜湖美的厨卫电器制造有限公司 | Microbubble device and water heater |
| CN110433676A (en) * | 2019-07-19 | 2019-11-12 | 中北大学 | A kind of hypergravity micro bubble generation device and application method |
| CN110527008A (en) * | 2019-08-12 | 2019-12-03 | 浙江大学 | It is a kind of to prepare polyvinyl method using microbubble |
| CN110527008B (en) * | 2019-08-12 | 2020-10-30 | 浙江大学 | Method for preparing ethylene polymer by using microbubbles |
| CN110420609A (en) * | 2019-09-02 | 2019-11-08 | 南京中汇能源科技研发中心 | A kind of micro/nano-scale multiphase flow process intensification reaction unit |
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