CN107497392A - Novel injection reactor mouth of pipe nozzle - Google Patents
Novel injection reactor mouth of pipe nozzle Download PDFInfo
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- CN107497392A CN107497392A CN201710939621.XA CN201710939621A CN107497392A CN 107497392 A CN107497392 A CN 107497392A CN 201710939621 A CN201710939621 A CN 201710939621A CN 107497392 A CN107497392 A CN 107497392A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
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Abstract
The present invention relates to a kind of novel injection reactor mouth of pipe nozzle, mainly solves the problems, such as that nozzle Involving velocity is bad in the prior art, mixing is bad.The present invention is by using a kind of novel injection reactor mouth of pipe nozzle, mouth of pipe cross section uses the form of equilateral triangle, three summits are respectively A, B, C, the length of side is AB=BC=CA=a, the circular arc summit of Rhizoma Sparganii circular cone is D, E, F, and at grade, △ DEF are parallel with plane where △ ABC and are congruent triangles, and △ ABD, △ BCE and △ CAF are congruent triangles；Plane DEF and plane ABC vertical range is h, h:A=0.1~1, when △ ABD are isosceles triangle, i.e. during the long AD=BD=b of waist, b:The technical scheme of a=0.2~1 preferably solves above mentioned problem, in being fed available for injection reactor.
Description
Technical field
The present invention relates to a kind of novel injection reactor mouth of pipe nozzle.
Background technology
Traditional continuous Production of Acetic Acid by Methanol Carbonylation technique selects stirred-tank reactor more, and sets multiple impellers.
But due to the severe corrosive of acetic acid, reactor and inner member need to use zirconium material to manufacture, not only high equipment cost, Er Qiecun
It is high in the difficult sealing of agitating paddle and vibration problem, operation and maintenance cost.Stirring is substituted using jet bubbling reactor simple in construction
Tank reactor.The gas dispersive property of stirred-tank reactor and jet bubbling reactor, liquid mixed performance, gas-liquid are passed
Matter performance etc. carries out com-parison and analysis.Incorporation time, the average air of experiment discovery, jet bubbling reactor and stirred-tank reactor
The same order of magnitude is in containing rate, Liquid volumetric mass transfer etc., gas can reach the state of being completely dispersed in two kinds of reactors.
From the perspective of flowing mixing and gas-liquid mass transfer, jet bubbling reactor can substitute stirred-tank reactor, for continuous
Production of Acetic Acid by Methanol Carbonylation technique.The energy consumption of jet bubbling reactor is much smaller than stirred-tank reactor, anti-using jet bubbling
Answer device, moreover it is possible to play energy-saving effect.Acetic acid is a kind of environment-friendly organic acid, is important chemical intermediate and change
Learn reaction dissolvent, be mainly used in producing VAM, aceticanhydride, acetate, terephthalic acid (TPA), monoxone, polyvinyl alcohol with
And metal acetate salt etc..Processes for Producing Acetic Acid is at present using wide for low-pressure methanol oxo synthesis.Existing main first
Need to add iodide ion in the reaction in alcohol carbonylating process, and the introducing of iodide ion causes the corrosivity of reaction solution to become extremely strong,
This just needs the reactor contacted with reaction solution and its internals to have to make using zirconium, to ensure device normal operation.
Zirconium is a kind of rare metal, has the spies such as surprising corrosion resistance, high fusing point, the hardness of superelevation and intensity
Property, but this also causes its difficulty being manufactured to greatly increase.Simplify as far as possible again while the efficiency of reactor is ensured
The structure of reactor, type of reactor use hydraulics stirring-type reaction kettle.It is anti-that this requires that reaction solution enters from inlet duct
Good volume can be produced by answering during device inhales effect, the liquid phase in reactor is evenly distributed, gas phase dispersion works well.
Patent CN2604434Y discloses a kind of reactor of low-pressure methanol liquid phase carbonyl synthesis acetic acid, and the reactor is by growing
Footpath is formed than the tower body for 4-6 and gas distributor, and liquid phase is mixed using gas, is entered during being somebody's turn to do by excessive gas phase
Material reaches mixed effect.Mixed in EP-A-188246, EP-1-423769 and WO95/08525 using agitator or air agitator
Close reaction solution.And reactor configuration complex designing with agitating paddle and expensive.Industry often uses multiple less stirred tanks
Instead of single big stirred reactor, cause cost of investment height.Further drawback using stirred reactor is that agitator axle is necessary
It is higher to seal request through the wall of pressurized reactor, while influenceed by agitating shaft rotation, reactor is sealed and stirred
Oar has higher stress influence, the easy occurrence of equipment failure of mixing plant, has a strong impact on the continual and steady operation of production.And use
Traditional agitating paddle is substituted with the reactor of fluid injector and gas sparging part, on the one hand can reduce the maintenance expense of dynamic equipment
With the vibration problem of agitating paddle on the other hand can be avoided.The nozzle of prior art uses the form of undergauge, simple in construction, and volume is inhaled
Action effect and unobvious.Expansion and the structure design of reactor are thus limit, while adds reaction fluid circulation
Energy consumption.
The content of the invention
The technical problems to be solved by the invention, which are that nozzle Involving velocity of the prior art is bad, mixing is bad, asks
A kind of topic, there is provided new novel injection reactor mouth of pipe nozzle.The nozzle has that nozzle Involving velocity is good, good excellent of mixing mass transfer
Point.
To solve the above problems, the technical solution adopted by the present invention is as follows：A kind of novel injection reactor mouth of pipe nozzle, pipe
Mouth cross section uses the form of equilateral triangle, and three summits are respectively A, B, C, and the length of side is AB=BC=CA=a, Rhizoma Sparganii circular cone
Circular arc summit is D, E, F, and at grade, and △ DEF are parallel with plane where △ ABC and are congruent triangles, and △
ABD, △ BCE and △ CAF are congruent triangles；Plane DEF and plane ABC vertical range is h, h:A=0.1~1, work as △
ABD is isosceles triangle, i.e. during the long AD=BD=b of waist, b:A=0.2~1.
In above-mentioned technical proposal, it is preferable that h:A=0.4~0.8.
In above-mentioned technical proposal, it is preferable that
In above-mentioned technical proposal, it is preferable that nozzle is located at the bottom of injection reactor.
The Liquid volumetric mass transfer of turn-knob triangular nozzle and diameter reduced round nozzle is with superficial gas velocity or jet
The increase of Reynolds numbers has identical changing rule, but compared to diameter reduced round nozzle, the liquid discharge of triangular structure
Mouth can strengthen the mixing of fine-scale degree, reduce the systematicness flowing of large scale, and the jet caused by triangular apex
It is stronger to the shear cracking action of bubble so that the mass transfer effect of turn-knob triangular nozzle of the invention is better than traditional diameter reduced
Round nozzle.Experiment prove the present invention new Rhizoma Sparganii circular cone type nozzle to the broken shear action of bubble, gas-liquid mass transfer effect,
Liquid phase mixed performance is superior to typical circular nozzle, present invention design Novel rotary prism-shaped nozzle, is applied to injection reaction
Device reaction solution entrance, and then structure of reactor is improved, fulfillment capability makes full use of, and improves production capacity and reaction conversion ratio, obtains
Preferable technique effect.
Brief description of the drawings
Fig. 1 is the 3-D view of nozzle of the present invention；
Fig. 2 is the top view of nozzle of the present invention；
Fig. 3 is the front view of nozzle of the present invention；
Fig. 4 is the tomograph of nozzle of the present invention；
In Fig. 1-Fig. 4, A, B, C are three summits in nozzle mouth of pipe section；D, E, F are the circular arc summit of Rhizoma Sparganii circular cone；A is
The length of side of nozzle mouth of pipe section triangle；B is the waist length that △ ABD are isosceles triangle；H is that plane DEF is vertical with plane ABC's
Distance.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Embodiment
【Embodiment 1】
A kind of novel injection reactor mouth of pipe nozzle, as Figure 1-Figure 4, mouth of pipe cross section use the shape of equilateral triangle
Formula, three summits are respectively A, B, C, and the length of side is AB=BC=CA=a, and the circular arc summit of Rhizoma Sparganii circular cone is D, E, F, and same
In plane, △ DEF are parallel with plane where △ ABC and are congruent triangles, and △ ABD, △ BCE and △ CAF are congruent triangle
Shape；Plane DEF and plane ABC vertical range is h, h:A=0.5, when △ ABD are isosceles triangle, i.e. the long AD=BD=b of waist
When,
The chill replication experiment of jet reactor is carried out using new type nozzle of the present invention.
Experiment investigated turn-knob triangular nozzle structure carry out mass transfer characteristic, during keep following with diameter reduced round nozzle
Ring is than consistent (the injection liquid flow of unit volume, QL/VL), choose typical operation conditions and tested, wherein gas phase flow rate model
Enclose for 2.5-14m3·h-1, liquid phase range of flow is 0.25-1m3·h-1。
The change of experimental study superficial gas velocity is to turn-knob triangular nozzle and diameter reduced round nozzle liquid phase volume mass transfer system
Several influences, the results showed that, the liquid phase volume mass transfer of turn-knob triangular nozzle similar with the mass transfer characteristic of diameter reduced round nozzle
Coefficient kLA increases with the increase of superficial gas velocity.Discovery is further looked at, (u when superficial gas velocity is smallerg<0.025m·s-1), rotation
The mass transfer characteristic for turning round triangular nozzle is substantially better than diameter reduced round nozzle；(the u when superficial gas velocity is largerg>0.025m·s-1),
The gas-liquid mass transfer performance of turn-knob triangular nozzle approaches with diameter reduced round nozzle.
According to mixing mass transfer theory analysis, when superficial gas velocity is smaller, the special construction of turn-knob triangular nozzle so that it is penetrated
The liquid flowed out has the motion of stereo spiral stream, so that tiny gas group occurs to disperse, while jet is to the fragmentation of bubble
It is stronger, gas liquid film product is added, further increases the mass transfer rate between gas-liquid.When superficial gas velocity increases, liquid phase input
Energy be not enough to complete bubble crushing, peptizaiton weakens, therefore now gas-liquid mass transfer performance approaches two kinds of nozzles.
In addition, experiment is investigated jet Reynolds numbers to turn-knob triangular nozzle and the liquid phase of diameter reduced round nozzle
The influence of volume transmission quality coefficient.As a result show, the timing of superficial gas velocity one, diameter reduced round nozzle and turn-knob triangular nozzle are corresponding
Liquid volumetric mass transfer kLA increases with the increase of jet Reynolds numbers, still, the liquid phase of turn-knob triangular nozzle
Volume transmission quality coefficient is bigger, illustrates that its mass-transfer performance is better than diameter reduced round nozzle.Its reason is the liquid of triangular structure
Outlet can strengthen the mixing of fine-scale degree, so as to reduce the flowing of the systematicness of large scale.Triangular apex is made simultaneously
Into jet it is stronger to the shear cracking action of bubble, therefore its gas-liquid mass transfer performance is better than original diameter reduced round nozzle.
【Embodiment 2】
A kind of novel injection reactor mouth of pipe nozzle, as Figure 1-Figure 4, mouth of pipe cross section use the shape of equilateral triangle
Formula, three summits are respectively A, B, C, and the length of side is AB=BC=CA=a, and the circular arc summit of Rhizoma Sparganii circular cone is D, E, F, and same
In plane, △ DEF are parallel with plane where △ ABC and are congruent triangles, and △ ABD, △ BCE and △ CAF are congruent triangle
Shape；Plane DEF and plane ABC vertical range is h, h:A=0.1, when △ ABD are isosceles triangle, i.e. the long AD=BD=b of waist
When, b:A=0.2.(analysis of experimental results is shown in Table 1)
【Embodiment 3】
A kind of novel injection reactor mouth of pipe nozzle, as Figure 1-Figure 4, mouth of pipe cross section use the shape of equilateral triangle
Formula, three summits are respectively A, B, C, and the length of side is AB=BC=CA=a, and the circular arc summit of Rhizoma Sparganii circular cone is D, E, F, and same
In plane, △ DEF are parallel with plane where △ ABC and are congruent triangles, and △ ABD, △ BCE and △ CAF are congruent triangle
Shape；Plane DEF and plane ABC vertical range is h, h:A=1, when △ ABD are isosceles triangle, i.e. the long AD=BD=b of waist
When, b:A=1.(analysis of experimental results is shown in Table 1)
【Embodiment 4】
A kind of novel injection reactor mouth of pipe nozzle, as Figure 1-Figure 4, mouth of pipe cross section use the shape of equilateral triangle
Formula, three summits are respectively A, B, C, and the length of side is AB=BC=CA=a, and the circular arc summit of Rhizoma Sparganii circular cone is D, E, F, and same
In plane, △ DEF are parallel with plane where △ ABC and are congruent triangles, and △ ABD, △ BCE and △ CAF are congruent triangle
Shape；Plane DEF and plane ABC vertical range is h, h:A=0.8, when △ ABD are isosceles triangle, i.e. the long AD=BD=b of waist
When, b:A=0.8.(analysis of experimental results is shown in Table 1)
【Embodiment 5】
A kind of novel injection reactor mouth of pipe nozzle, as Figure 1-Figure 4, mouth of pipe cross section use the shape of equilateral triangle
Formula, three summits are respectively A, B, C, and the length of side is AB=BC=CA=a, and the circular arc summit of Rhizoma Sparganii circular cone is D, E, F, and same
In plane, △ DEF are parallel with plane where △ ABC and are congruent triangles, and △ ABD, △ BCE and △ CAF are congruent triangle
Shape；Plane DEF and plane ABC vertical range is h, h:A=0.4, when △ ABD are isosceles triangle, i.e. the long AD=BD=b of waist
When, b:A=0.4.(analysis of experimental results is shown in Table 1)
【Embodiment 6】
A kind of novel injection reactor mouth of pipe nozzle, as Figure 1-Figure 4, mouth of pipe cross section use the shape of equilateral triangle
Formula, three summits are respectively A, B, C, and the length of side is AB=BC=CA=a, and the circular arc summit of Rhizoma Sparganii circular cone is D, E, F, and same
In plane, △ DEF are parallel with plane where △ ABC and are congruent triangles, and △ ABD, △ BCE and △ CAF are congruent triangle
Shape；Plane DEF and plane ABC vertical range is h, h:A=0.8, when △ ABD are isosceles triangle, i.e. the long AD=BD=b of waist
When,(analysis of experimental results is shown in Table 1)
Table 1
In general, replication experiment result shows, the liquid phase volume of turn-knob triangular nozzle and diameter reduced round nozzle
Mass tranfer coefficient has identical changing rule with the increase of superficial gas velocity or jet Reynolds numbers, but justifies compared to diameter reduced
Shape nozzle, the liquid outlet of triangular structure can strengthen the mixing of fine-scale degree, reduce the systematicness flowing of large scale,
And the jet caused by triangular apex is stronger to the shear cracking action of bubble so that the mass transfer effect of turn-knob triangular nozzle
Better than traditional diameter reduced round nozzle.Experiment proves that broken shearing of the new Rhizoma Sparganii circular cone type nozzle of the present invention to bubble is made
With, gas-liquid mass transfer effect, liquid phase mixed performance be superior to typical circular nozzle.
Claims (3)
1. a kind of novel injection reactor mouth of pipe nozzle, mouth of pipe cross section uses the form of equilateral triangle, and three summits are respectively
A, B, C, the length of side are AB=BC=CA=a, and the circular arc summit of Rhizoma Sparganii circular cone is D, E, F, and at grade, △ DEF and △
Plane where ABC is parallel and is congruent triangles, and △ ABD, △ BCE and △ CAF are congruent triangles；Plane DEF and plane
ABC vertical range is h, h:A=0.1~1, when △ ABD are isosceles triangle, i.e. during the long AD=BD=b of waist, b:A=0.2~
1。
2. novel injection reactor mouth of pipe nozzle according to claim 1, it is characterised in that h:A=0.4~0.8.
3. novel injection reactor mouth of pipe nozzle according to claim 1, it is characterised in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710939621.XA CN107497392B (en) | 2017-10-11 | 2017-10-11 | Injection reactor nozzle nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710939621.XA CN107497392B (en) | 2017-10-11 | 2017-10-11 | Injection reactor nozzle nozzle |
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| CN107497392A true CN107497392A (en) | 2017-12-22 |
| CN107497392B CN107497392B (en) | 2019-07-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070212294A1 (en) * | 2006-03-10 | 2007-09-13 | Korea Advanced Institute Of Science And Technology | Fuel reformer comprising spraying device, sprayer used in the fuel reformer and fuel reforming method |
| CN101396647A (en) * | 2007-09-29 | 2009-04-01 | 中科合成油技术有限公司 | Gas-liquid-solid three-phase suspended bed reactor for f-t synthesis and use thereof |
| US20130302528A1 (en) * | 2011-01-21 | 2013-11-14 | Shin-Etsu Chemical Co., Ltd. | Apparatus for producing polycrystalline silicon and method for producing polycrystalline silicon |
| CN204656509U (en) * | 2015-06-02 | 2015-09-23 | 宁波象保合作区天吉自动化设备有限公司 | Airlift circulating reactor |
| CN106732309A (en) * | 2017-01-13 | 2017-05-31 | 惠州宇新化工有限责任公司 | A kind of injecting type shell-and-tube reactor and its reaction method for alkylated reaction |
-
2017
- 2017-10-11 CN CN201710939621.XA patent/CN107497392B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070212294A1 (en) * | 2006-03-10 | 2007-09-13 | Korea Advanced Institute Of Science And Technology | Fuel reformer comprising spraying device, sprayer used in the fuel reformer and fuel reforming method |
| CN101396647A (en) * | 2007-09-29 | 2009-04-01 | 中科合成油技术有限公司 | Gas-liquid-solid three-phase suspended bed reactor for f-t synthesis and use thereof |
| US20130302528A1 (en) * | 2011-01-21 | 2013-11-14 | Shin-Etsu Chemical Co., Ltd. | Apparatus for producing polycrystalline silicon and method for producing polycrystalline silicon |
| CN204656509U (en) * | 2015-06-02 | 2015-09-23 | 宁波象保合作区天吉自动化设备有限公司 | Airlift circulating reactor |
| CN106732309A (en) * | 2017-01-13 | 2017-05-31 | 惠州宇新化工有限责任公司 | A kind of injecting type shell-and-tube reactor and its reaction method for alkylated reaction |
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| CN107497392B (en) | 2019-07-16 |
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