CN205850826U - A kind of outer circulation type alkylation reactor strengthening conveying - Google Patents
A kind of outer circulation type alkylation reactor strengthening conveying Download PDFInfo
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- CN205850826U CN205850826U CN201620232902.2U CN201620232902U CN205850826U CN 205850826 U CN205850826 U CN 205850826U CN 201620232902 U CN201620232902 U CN 201620232902U CN 205850826 U CN205850826 U CN 205850826U
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Abstract
This utility model relates to a kind of outer circulation type alkylation reactor strengthening conveying.Described reactor includes emulsator and heat exchanger；Described emulsator includes: emulsator housing；Stirring drives motor；Shaft, it is driven by stirring driving motor；First axial-flow type blade, it is positioned on shaft；Second axial-flow type blade, it is positioned on shaft；Radial-flow type blade, it is on shaft between the first axial-flow type blade and the second axial-flow type blade；Baffle plate；Component distributor；Feed pipe and discharging opening.Described heat exchanger includes: heat exchanger shell；Heat exchanging pipe；Heat transferring medium import；Heat transferring medium exports；Material inlet；Material outlet and product exit.Described reactor also includes the first connecting tube between emulsator and heat exchanger and the second connecting tube.Device of the present utility model can ensure that the dispersion and emulsion mass transfer in alkylated reaction, reaction move heat and the stability of three kinds of functions of circular fluidic flow and Modulatory character.
Description
Technical field
This utility model belongs to field of chemical equipment, follows more specifically, this utility model relates to a kind of the outer of conveying of strengthening
Ring type alkylation reactor.
Background technology
Alkylated reaction refer to the hydrogen atom being connected in organic compound molecule on carbon, oxygen and nitrogen by alkyl replaced anti-
Should.A kind of typical alkylated reaction is that butane is anti-with the alkylation that butylene generates isobutyltrimethylmethane. under the catalytic action of concentrated sulphuric acid
Should.In the reaction of this sulfuric acid alkylation, butylene is dissolved in concentrated sulphuric acid the continuous phase as reaction system, and is not easy the fourth of concentrated sulphuric acid
Alkane is then dispersion phase, and butane occurs on two-phase interface with the alkylated reaction of butylene.In order to improve reaction efficiency, need strengthening
Its mass transfer area, and being effectively dispersed in by alkane in concentrated sulphuric acid continuous phase is one of important channel strengthening its mass transfer.But because producing
Thing isobutyltrimethylmethane. and corresponding isomerization product dissolubility in concentrated sulfuric acid thereof are the most relatively low, and use for improving the conversion ratio of alkene
High alkane alkene ratio and have a large amount of unreacted alkane, therefore alkane is required for product separating with catalyst concentrated sulphuric acid as early as possible,
To improve production efficiency.This just require alkane dispersion and emulsion in concentrated sulfuric acid without homogenizing, but the most controlled.Meanwhile,
Sulphuric acid catalysis butane is strong exothermal reaction with the alkylated reaction of butylene, and system needs to control cryogenic conditions, and under low temperature
The viscosity of concentrated sulphuric acid is the highest, the dispersive process during therefore this emulsifying is the resisting medium containing thermal transmission requirement.
Patent CN204107349U discloses a kind of novel silicon oil emulsion reactor, is mounted with anchor oar, dish in reactor
Pipe and high-shear emulsion machine, reduced silicon oil viscosity by heating, added more blade and improve rotating speed in high-speed emulsifying machine
Product emulsifying uniformity is improved Deng measure.Patent CN204685014U discloses a kind of high-shear emulsifying device, passes through device
After chuck heating, internal multilamellar zigzag disk high speed shear effect carrys out fortified milk quality.Patent 201410184576.8 disclosure
A kind of emulsion mixing device, coordinates promotion flowing mixing up and down to improve effect by what multiaxis frame stirred with leaf formula.Specially
Profit CN201603524U discloses a kind of emulsifier unit, uses the paddle being provided with through hole that material is circulated emulsifying and improves
Emulsifying effectiveness.Patent 204447838U discloses a kind of silicone oil emulsification device, uses electromagnetic excitation to drive the pivoting leaf on disk
Sheet achieves the uniform stirring that dynamics is gentle.Patent 202446992U provides a kind of silicone oil emulsification agitating device, with coaxial solid
The fixed teeter column between disk achieves the emulsion process that mixing force is less.Patent 102961987A provides one and has premix
The serialization height closed glues silicone oil emulsification technique and equipment thereof, have employed and comprises premixing screw pump, static mixer, emulsifying stirring
The equipment such as still obtain high viscous silicone oil emulsification product, use the oblique leaf oar of different leaves quantity in its emulsifying stirred tank.Specially
Profit CN204247083U provides a kind of emulsifier unit, the mulser rotating shaft in emulsion tank is provided with two and counter pushes away wheel, can
To be effectively improved emulsifying capacity, make emulsifying more thoroughly with finer and smoother.Patent CN204582987U provides a kind of mulser, is stirring
Mix axle to be provided with the agitator arm of multiple stacked on top of one another and coordinate with stator, simultaneously ultrasonic by sidepiece supersonic generator and bottom
Wave producer makes medium can carry out ultrasonic emulsification on the basis of machinery emulsification, and the media diameters after emulsifying is less, emulsifying
Better.In above-mentioned patent, target product is the product emulsion of long-time stable, does not has a product split-phase separation requirement, and not
Containing chemical reaction, be not suitable as existing chemical reaction, the reaction system of applications catalyst, such as sulfuric acid catalysis alkylation anti-
Answer the dispersion and emulsion of system.
Patent CN104667856A, CN104549086A, CN104549115A, CN104549108A, CN104549116A,
CN104549111A, CN104549110A, CN104549109A, CN104549087A, CN104549114A etc. are in reactor
Injection hybrid component is set and revolving bed or inside and outside revolving bed is installed in reactor, to realize the dispersion of catalyst and reactant
Mixing.This kind of reactor realizes the assembly of reaction system dispersion and emulsion too much, complexity is installed, be not easy to the efficient system of equipment
Make.
Patent CN200520078557.3 discloses a kind of horizontal alkylation reactor, uses propeller will disperse, mix
It is incorporated into synchronization implementation in same equipment with heat exchange, but the shearing to immiscible liquid-liquid reactions system disperses, mixes and flow
Exchange capability of heat considers insufficient.
Patent CN103242895A discloses a kind of carbon 4 alkylation production method and device, liquid phase C4 alkane and concentrated sulphuric acid
Utilize agitating device fully emulsified outside device, multistage tower reactor completes alkylated reaction.This patented method ensures
Entering the emulsifying degree of the sour hydrocarbon of reactor, but in tower, the interface of emulsion in course of reaction updates and depends on filler, it is fitted
Time regulation measure few.
Patent CN203764234U discloses a kind of alkylation reactor, its reactor include top material inlet and
Distributed rendering section, the conversion zone at middle part and the product segregation section of bottom.Material distributed rendering section is existed by multi-pipeline distributor
It is uniformly distributed mixing without reaching material in the case of agitator；At conversion zone equipped with filler, promote reaction with mass transfer enhancement effect
Carrying out.This reactor can move heat by gasification and realize directly cooling.The material mixing section of this reactor is provided with too much
Material inlet pipeline, it is arranged that complexity, flow resistance are big, is unfavorable for manufacturing, producing and safeguard.
Patent CN102921368B discloses a kind of Horizontal internal circulating stirred reactor, with Strong shear recycle stream blade, width
The compound action of degree gradual change baffle plate etc. realizes the dispersion of material and circulates.Material dispersion emulsifying in this reactor and circulation
Mobilization dynamic is provided by same blade, is unfavorable for the regulation and control of emulsifying requirement, is also unfavorable for the optimization of mass-and heat-transfer simultaneously.
To sum up, this area also needs to exploitation can increase mass transfer area, improve reaction efficiency alkylated reaction equipment.
Utility model content
The purpose of this utility model is to provide a kind of outer circulation type alkylation reactor strengthening conveying.
In first aspect of the present utility model, it is provided that a kind of outer circulation type alkylation reactor strengthening conveying, described instead
Device is answered to include emulsator and heat exchanger；
Described emulsator includes: emulsator housing 3；Stirring drives motor 1；Shaft 2, it is by stirring driving motor 1
Drive；First axial-flow type blade 201, it is positioned on shaft；Second axial-flow type blade 203, it is positioned on shaft；Radial-flow type
Blade 202, it is on shaft between the first axial-flow type blade 201 and the second axial-flow type blade 203；Baffle plate 4；Component is distributed
Device 6；Feed pipe 8；With discharging opening 10；
Described heat exchanger includes: heat exchanger shell 13；Heat exchanging pipe 18；Heat transferring medium import 16；Heat transferring medium exports
17；Material inlet 12；Material outlet 20 and product exit 14；
Described reactor also includes the first connecting tube 11 and the second connecting tube 21 between emulsator and heat exchanger.
In a preference, described emulsator also includes: heat exchange jacket 5, it is positioned on housing exterior walls；It is preferred that should
Heat exchange jacket 5 includes half tubular heat exchange coil.
In another preference, described emulsator also includes: material discharging hole 7.
In another preference, described feed pipe 8 also includes recycle feed pipe 9.Described material discharging hole 7 also may be used
As charging aperture.
In another preference, the pipe of half described tubular heat exchange coil built with flowing liquid phase or can phase transformation vaporization
Liquid phase heat transferring medium.
In another preference, described emulsator housing 3 includes: upper cover 301；Cylinder 302；Low head 303；Preferably
Ground, described upper cover 301 and low head 303 are spheroid shape end enclosure structure.
In another preference, described cylinder 302 is straight barrel.
In another preference, described discharging opening 10 is positioned at the sidewall of cylinder 302.
In another preference, described feed pipe 8 and recycle feed pipe 9 are positioned on low head 303.
In another preference, described material discharging hole 7 is positioned on low head 303.
In another preference, described component distributor 6 enters in housing through housing 3.
In another preference, described heat exchange jacket 5 is covered in the sidewall of cylinder 302.
In another preference, described shaft 2, through upper cover 301, is positioned in low head 303.
In another preference, the first described axial-flow type blade 201 and the second axial-flow type blade 203 are selected from: propeller,
Aerofoil impeller；Preferably propeller；Or
In another preference, the first described axial-flow type blade 201 and a diameter of cylinder of the second axial-flow type blade 203
0.80～0.88 times of 302 diameters, preferably 0.84～0.86 times；And/or the first described axial-flow type blade 201 is installed on stirring
On axle 2, the upper bottom portion vertical dimension of distance upper cover 301 is 0.8～1.5 times of described cylinder 302 diameter, preferably 0.9～1.4
Position again；And/or the second described axial-flow type blade 203 to be installed on the lower bottom part of distance low head 303 on shaft 2 vertical
Distance is 0.2～1.5 times of described cylinder 302 diameter, the position of preferably 0.3～1.0 times.
In another preference, described radial-flow type blade 202 is selected from: straight leaf disc vane wheel oar, symmetrical recessed leaf disc whirlpool
Wheel oar, asymmetric recessed leaf disc vane wheel oar, oblique leaf oar；Preferably disk vane wheel oar.
In another preference, described radial-flow type blade 202 is one or more；Preferably 1～5, such as 2～3
Individual；It is preferred that 0.8～1.5 times that the interlamellar spacing of described multiple radial-flow type blades is described radial-flow type blade 202 diameter, excellent
Select 0.9～1.2 times；And/or 0.45～0.55 times of a diameter of cylinder 302 diameter of described radial-flow type blade 202, preferably
0.47～0.54 times.
In another preference, the quantity of described baffle plate 4 is 2～12；Preferably 2-10 sheet；It is more preferably 2-8
Sheet；Such as 4,6；It is preferred that multi-piece baffle plate 4 is equally distributed；And/or the width of described baffle plate 4 is described cylinder 302
Diameter 1/20～1/8；Preferably 1/12～1/10；And/or the length of described baffle plate 4 is long with the straight flange of cylinder 302
Spend identical；And/or the inwall of described baffle plate 4 and cylinder 302 from span from for the 1/12～1/8 of baffle plate 4 width.
In another preference, described component distributor 6 includes charging aperture 601 and distributor pipe 602；Described distributor pipe
It is distributed porose on 602；It is preferred that described component distributor 6 is tubular type distributor；It is preferred that described distributor pipe 602
0.8～1.2 times of a diameter of described radial-flow type blade 202 diameter, is more preferably 0.9～1.1 times；Or described component divides
Cloth device 6 is installed between described radial-flow type blade 202 and the second axial-flow type blade 203；It is preferred that described component distributor 6
And 0.5～1.5 times that the vertical dimension between described radial-flow type blade 202 is described radial-flow type blade 202 height, preferably
0.8～1.2 times.
In another preference, on distributor pipe 602, the aperture in the hole of distribution is 2～20mm.
In another preference, the top and bottom of described heat exchanger shell 13 are closed by end socket 15；It is preferred that it is described
Heat transferring medium import 16 and heat transferring medium outlet 17 be present on end socket 15；Or
In another preference, also include in described heat exchanger: tubulation gripper shoe 19, be used for fixing heat exchanging pipe 18.
Other side of the present utility model, due to this disclosure, is aobvious and easy to those skilled in the art
See.
Accompanying drawing explanation
Fig. 1, a kind of mechanical agitation type Continuous Emulsifier structural representation (positive apparent direction strengthening conveying of the present utility model
Profile).In figure, dotted arrow represents that liquid stream flows to.
Fig. 2, tubular type structure of distributor schematic diagram (vertical view direction).
Fig. 3, a kind of mechanical agitation type Continuous Emulsifier structural representation (positive apparent direction strengthening conveying of the present utility model
Profile).In emulsator shown in figure, shaft is provided with the emulsator of multiple radial-flow type blade.
Fig. 4 A-Fig. 4 C, several radial-flow type paddle blade structure schematic diagram.It is followed successively by from left to right: straight leaf disc vane wheel oar, symmetrical
Recessed leaf disc vane wheel oar, oblique leaf oar.
Fig. 5 A-Fig. 5 F, several Axial-flow impeller impeller structure schematic diagram.Upper left for arc propeller, upper in be fan propeller,
Upper right is four leaf Aerofoil impeller, and bottom left is six wide leaf Aerofoil impeller, lower in be six narrow leaf Aerofoil impeller, bottom right is k5 Aerofoil impeller.
In figure, each reference is respectively as follows:
1: stirring drives motor；
2: shaft；201: the first axial-flow type blades；202: radial-flow type blade；203: the second axial-flow type blades；
3: housing；301: upper cover；302: cylinder；303: low head.
4: baffle plate；
5: heat exchange jacket；
6: component distributor；601: charging aperture；602: distributor pipe；
7: material discharging hole (or feed pipe)；
8: feed pipe；
9: recycle feed pipe；
10: discharging opening；
11: the first connecting tubes；
12: material inlet；
13: heat exchanger shell；
14: product exit；
15: end socket；
16: heat transferring medium import；
17: heat transferring medium exports；
18: heat exchanging pipe；
19: tubulation gripper shoe；
20: material outlet；
21: the second connecting tubes.
Detailed description of the invention
In order to overcome the deficiency of prior art, the present inventor, through in-depth study, develops a kind of strengthening outside conveying
Circulating alkylation reactor and alkylation reaction method.The mechanical agitation type Continuous Emulsifier carried by strengthening and heat exchanger
Constituting material outside circulation, emulsator ensure that the suitable dispersion and emulsion realizing the low adhesive material of low-density in high density resisting medium
With suitable temperature control, and the conveying of axial-flow type blade fortification system fluid installed with zones of different and circulate ability；Heat exchange
Device enhances reaction temperature control, and with the axial-flow type blade coordinated drive Matter Transfer in emulsator.Design of the present utility model, can
Ensure that the dispersion and emulsion mass transfer in alkylated reaction, reaction move heat and the stability of three kinds of functions of circular fluidic flow and controllable
Property.
Term
As used herein, described " the low viscous material of low-density " refers to that a class has compared with low-density, more low viscous thing
Material；Such as, its density is typically 0.15～1g/cm3, its viscosity is typically 0.2～100CP.Described " the low goo of low-density
Material " as dispersion phase.
As used herein, described " high density viscous material " refers to that a class has the material of higher density, higher tack；
Such as, its density is typically 1～5g/cm3Or its viscosity is typically 1～1000CP.Described " high density viscous material " conduct
" continuous phase ".
Should be understood that " the low viscous material of low-density " and " high density viscous material " are a kind of relative concepts, such as, if even
The viscosity of continuous phase is in the middle of 1～100CP (such as 20CP), and the viscosity of dispersion phase is less than 1CP (such as 0.5CP), then continuous phase phase
It is " high density viscous material " for dispersion phase.
The outer circulation type alkylation reactor of strengthening conveying
This utility model provides a kind of outer circulation type alkylation reactor strengthening conveying, and described reactor includes emulsifying
Device and heat exchanger, both are connected by connecting tube, carry out substance circulating.
Emulsator described in the utility model includes: emulsator housing, and stirring drives motor, shaft, the first axial-flow type
Blade, the second axial-flow type blade, radial-flow type blade, baffle plate, component distributor, feed pipe and discharging opening.
Described emulsator housing includes: upper cover, cylinder, low head.Described upper cover is used for closed cylinder upper end,
Described low head is for closed cylinder lower end, thus integrant emulsator housing.As preferred side of the present utility model
Formula, described upper cover and low head are spheroid shape end enclosure structure.As optimal way of the present utility model, described cylinder is
Straight barrel.
Described stirring drives motor to provide power for the operating for shaft, has the motor of suitable driving force
All can be applicable in this utility model.Described shaft passes upper cover, quilt in described cylinder or described low head
Location.Generally, the agent structure of described emulsator housing is cylindrical, and described shaft is located in emulsator shell
On internal centrage.
The first described axial-flow type blade and the second axial-flow type blade are installed on shaft, within being positioned at cylinder.As
Optimal way of the present utility model, the first described axial-flow type blade and a diameter of barrel diameter of the second axial-flow type blade
0.80～0.88 times, preferably 0.84～0.86 times.As optimal way of the present utility model, the first described axial-flow type blade peace
It is loaded on upper bottom portion vertical dimension is described barrel diameter 0.8～1.5 times of distance upper cover on shaft, preferably 0.9～1.4
Position again.As optimal way of the present utility model, the second described axial-flow type blade is installed on shaft and seals under distance
Lower bottom part vertical dimension is described barrel diameter 0.2～1.5 times of head, the position of preferably 0.3～1.0 times.Described axial flow
Formula blade can be but not limited to: propeller or Aerofoil impeller；Preferably propeller.Fig. 5 A-Fig. 5 F presents some axial-flow type
Blade.
Described radial-flow type blade is installed on shaft, within being positioned at cylinder, the first axial-flow type blade and the second axial flow
Position between formula blade.Described radial-flow type blade can be one or more；Preferably 1～5, such as 2～3；Relatively
Goodly, 0.8～1.5 times that interlamellar spacing is described radial-flow type diameter of propeller blade of described multiple radial-flow type blades, preferably 0.9～
1.2 again.As optimal way of the present utility model, the 0.45～0.55 of a diameter of barrel diameter of described radial-flow type blade
Times, preferably 0.47～0.54 times.Described radial-flow type blade can be but not limited to: straight leaf disc vane wheel oar, symmetrical recessed leaf circle
Dish vane wheel oar, asymmetric recessed leaf disc vane wheel oar or tiltedly leaf oar；Preferably disk vane wheel oar.Fig. 4 A-Fig. 4 C presents
Radial-flow type blade.
In order to coordinate radial-flow type blade, in cylinder of the present utility model, the position near medial wall also sets up baffle plate, thus
Jointly act on radial-flow type blade, dispersion phase circulation shear is disperseed and enters in continuous phase.The quantity of baffle plate is at least 2；
Generally 2～12；Preferably 2-10 sheet；It is more preferably 2-8 sheet, such as 4,6.Usually, multi-piece baffle plate is uniformly arranged
In cylinder, the wall near medial wall is all.As optimal way of the present utility model, the inwall of described baffle plate and cylinder from
Span is from for the 1/12～1/8 of barrier width.As optimal way of the present utility model, the width of described baffle plate is described cylinder
The 1/20～1/8 of the diameter of body；Preferably 1/12～1/10.As optimal way of the present utility model, described baffle plate
Length is identical with the length of straight flange of cylinder.
Emulsator described in the utility model also includes heat exchange jacket, and it is positioned on cylinder body outer wall, and it can be used for adjusting breast
The temperature of the liquid in change device housing.As optimal way of the present utility model, described heat exchange jacket includes half tubular heat exchange dish
Pipe, its pipe built with flowing liquid phase or can phase transformation vaporization liquid phase heat transferring medium.
Emulsator described in the utility model also includes component distributor, and it is arranged in cylinder, it include charging aperture and
Distributor pipe, described distributor pipe is distributed porose.As optimal way of the present utility model, the aperture in the hole of distribution on distributor pipe
Can be 2～20mm.As optimal way of the present utility model, described component distributor is tubular type distributor.It is preferred that
The ring diameter of the distributor pipe of described component distributor is 0.8～1.2 times of described radial-flow type diameter of propeller blade；It is more preferably
0.9～1.1 times.As optimal way of the present utility model, described component distributor is installed on described radial-flow type blade and
Between two axial-flow type blades；It is preferred that the vertical dimension between described component distributor and described radial-flow type blade is described
0.5～1.5 times of radial-flow type blade height, preferably 0.8～1.2 times.
Emulsator described in the utility model also includes at least one feed pipe (charging aperture), and at least one discharge nozzle (goes out
Material mouth).
Described feed pipe is positioned on cylinder or low head；It is preferably located at bottom low head.As of the present utility model
Optimal way, described feed pipe passes perpendicularly through described low head wall；It is preferred that be additionally provided with recycle feed on described feed pipe
Pipe.Described recycle feed pipe refers to that the material in emulsator can be to another functional operated implement (such as heat exchanger) recycled material
The pipeline of exchange.
Described discharging opening (discharge nozzle) is positioned at the sidewall of cylinder, and it is for exporting emulsification product；New as this practicality
The optimal way of type, described discharging opening is positioned on cylinder the position higher than the first axial-flow type blade.
Emulsator described in the utility model also includes material discharging hole, and it is positioned at the bottom of emulsator housing, and being used for will
After emulsifying terminates, in emulsator, remaining material is discharged.Described material discharging hole also can be as charging aperture.
Heat exchanger described in the utility model includes: heat exchanger shell, heat exchanging pipe, heat transferring medium import, heat transferring medium
Outlet, material inlet, material outlet, product exit.
The top and bottom of described heat exchanger shell are closed by end socket；It is preferred that described heat transferring medium import and changing
Thermal medium outlet is present on end socket.
Described heat exchanging pipe can be fixed in heat exchanger by tubulation support；It is preferred that heat exchanging pipe is by solid equably
Fixed.The gap of heat exchanging pipe allows Flow of Goods and Materials, thus with material generation heat exchange.
In described heat exchanger, heat transferring medium can be liquid phase or can phase transformation vaporization liquid phase heat transferring medium, this heat exchange be situated between
Matter is entered in the pipe of described heat exchanging pipe by the heat transferring medium import of described heat exchanger after end socket is distributed, with described heat exchange
After material-heat-exchanging between the pipe of the described heat exchanging pipe of device, export from the heat transferring medium of described heat exchanger and flow out.
The exchange capability of heat of described heat exchanger is as the criterion with the heat transfer requirements meeting alkylation reactor reaction temperature control, and accordingly
Design effective heat exchange area and heat transferring medium condition.
Reactor described in the utility model also includes that the first connecting tube between emulsator with heat exchanger and second is connected
Pipe, thus reaction mass can be carried between emulsator and heat exchanger.The first described connecting tube and the second connecting tube
Diameter, can determine according to the scale of emulsator and heat exchanger.
The application of the outer circulation type alkylation reactor of strengthening conveying
This utility model additionally provides the purposes of the outer circulation type alkylation reactor of described strengthening conveying, and described is strong
The outer circulation type alkylation reactor changing conveying is used for being alkylated reaction.
Described outer circulation type alkylation of the present utility model includes: the outer circulation type of the strengthening conveying described in offer
Alkylation reactor, inputs the first reaction mass by feed pipe in cylinder；In cylinder, is inputted by component distributor
Two reaction masses；Opening stirring and drive motor, the second reaction mass circulates under radial-flow type blade with the common effect of baffle plate to be cut
Cutting dissipate, enter by second axial-flow type blade suck conveying the first reaction mass in, further by the first axial-flow type blade again
After dispersion and emulsion, discharging opening flow out emulsator, be input in heat exchanger via the first connecting tube and material inlet；At heat exchanger
In, under suitable heat transfer boundary condition, the material of mixing continues reaction, and is entered feed pipe by the second connecting tube, is flowed into emulsifying
Device continues reaction, or is flowed in emulsator after mixing with the first fresh reaction mass, carry out successive reaction；Reaction mass
Export from product exit, obtain target product through subsequent operation.
When described emulsator is run, stirring drives the rotating speed of motor to be typically suitable in the range of 100～800rpm.
Certainly, according to kind and the difference of volume of material to be emulsified, the rotating speed of stirring can be adjusted to the number beyond above-mentioned scope
Value, this is that those skilled in the art are prone to accomplish.
Described heat exchanger includes that heat transferring medium, described heat transferring medium are liquid phase or the liquid phase heat exchange of energy phase transformation vaporization
Medium, this heat transferring medium is entered in the pipe of heat exchanging pipe by heat transferring medium import after end socket is distributed, with the pipe of heat exchanger tube
Between material-heat-exchanging after, from heat transferring medium outlet flow out.
Method of the present utility model is be applicable to the dispersion breast carrying out the low viscous material of low-density high density viscous material
Change, and make two kinds of materials that sufficiently reaction occur.Method of the present utility model is particularly well-suited to need high-viscosity material to participate in
Alkylated reaction.
" alkylated reaction " described in the utility model refers to that the hydrogen being connected on carbon, oxygen and nitrogen in organic compound molecule is former
The reaction that son is replaced by alkyl.Participate in reaction material is the most immiscible and thermal change occurs in course of reaction,
It is thus desirable to carry out dispersion and emulsion to promote contacting with each other of the first reactant and the second reactant by emulsator, pass through heat exchange
Device regulates suitable temperature.
As optimal way of the present utility model, described " the first reaction mass " is the material as continuous phase.Such as,
Concentrated sulphuric acid, its in alkylated reaction frequently as catalyst.More specifically as containing alkene (preferably C3～C5 alkene, as
Butylene) concentrated sulphuric acid.
As optimal way of the present utility model, described " the second reaction mass " is the material as dispersion phase.Such as,
Hydro carbons；Preferably alkane；It is more preferably C3～C5 alkane, such as butane.
The input volume flow ratio of the first reaction mass and the second reaction mass input emulsator can be: continuous phase: point
Dephasing=1:1～10:1.Certainly, according to the needs of reaction, in some cases, other proportion is also possible.
As a kind of embodiment, reactor of the present utility model is applicable to disperse hydro carbons with concentrated sulphuric acid for continuous phase.
Reactor of the present utility model, regulates blade by the version of blade, diameter and speed of agitator in regulation emulsator
Shearing dispersibility to dispersion phase, it is thus achieved that suitable dispersion and emulsion liquid-drop diameter, the liquid-drop diameter of this dispersion phase and follow-up mistake
Journey need the stable time corresponding before dispersion and emulsion system split-phase.Meanwhile, sulphuric acid catalysis butane and the alkylation of butylene
Reaction is strong exothermal reaction, and system needs to control cryogenic conditions, and the viscosity of the concentrated sulphuric acid under low temperature is higher, therefore this breast
Change is the dispersive process in the resisting medium containing thermal transmission requirement；Described emulsator can also be realized by heat exchange jacket
The regulation and control of temperature.Further, by the application of heat exchanger, perfect temperature adjusting ambient is provided for reaction system.
Major advantage of the present utility model is:
1, use the strong radial-flow type blade of power input capability, match with the baffle plate installed, it is achieved efficient to material
Shear the emulsifying degree disperseing and reaching suitable.
2, while dispersion and emulsion, it is achieved that the efficient renewal of reaction interface, enhance mass transfer effect, be conducive to improving
Reaction efficiency.
3, the charging in emulsator is provided with driving the axial-flow type blade of reaction system flowing with pull-off section, enhances
The circulation conveying capacity of fluid mechanics in emulsator, also enhances simultaneously and meets the inside and outside ratio of the Matter Transfer needed for alkylated reaction
Ability of regulation and control.
4, stirrer paddle diameter and the appropriate design of rotating speed, be conducive to regulating and controlling emulsifying effectiveness so that it is can meet reaction and pass
Matter area requirements, can make again product and excess alkane be separated efficiently, improve production efficiency.
5, in external circulation heat exchanging device the part phase separation of material to produce severe poor, this severe difference and axial-flow type blade meeting
Produce synergism, the Matter Transfer function in further enhanced reactor.
6, outer circulation type heat exchanger makes heat exchange function have independence, it is possible to meet the modulability of enhanced heat transfer with controlled
Property, provide convenience for plant maintenance simultaneously.
Below in conjunction with specific embodiment, this utility model is expanded on further.Should be understood that these embodiments are merely to illustrate this
Utility model rather than limit scope of the present utility model.The experimental technique of unreceipted actual conditions in the following example is logical
Often according to normal condition, or according to the condition proposed by manufacturer.
Embodiment 1, the outer circulation type alkylation reactor of strengthening conveying
1, emulsator
Such as Fig. 1 and Fig. 3, emulsator includes: housing 3；Upper cover 301, cylinder 302, low head 303.Described upper cover
301 and low head 303 be spheroid shape end enclosure structure.
Cylinder 302 is straight barrel, and its outer wall also sets up heat exchange jacket 5, and this heat exchange jacket 5 includes half tubular heat exchange dish
Pipe, pipe built with flowing liquid phase or can phase transformation vaporization liquid phase heat transferring medium.
Shaft 2, through upper cover 301, cylinder 302, is positioned in described low head 303, and shaft 2 is by stirring
Motor 1 is driven to drive.
On shaft 2, the first axial-flow type blade 201, radial-flow type blade 202 and the second axial-flow type blade 203 are set.
First axial-flow type blade 201 is positioned in cylinder 302, radial-flow type blade 202 top, and it is installed on shaft 2, adopts
With propeller, 0.85 times of its a diameter of barrel diameter.
Second axial-flow type blade 203 is positioned in cylinder 302, radial-flow type blade 202 bottom, and it is installed on shaft 2, adopts
With propeller, 0.85 times of its a diameter of barrel diameter.
Radial-flow type blade 202 is positioned at the middle part of cylinder 302, uses disc turbine oar, its a diameter of cylinder 302 diameter
0.48 times.
Including component distributor 6 in cylinder 302, it enters in cylinder 302 through housing wall.Component distributor 6 is round
Cast distributor, such as Fig. 2, including charging aperture 601 and distributor pipe 602；It is distributed porose on distributor pipe 602；The diameter of distributor pipe 602
It it is 0.95 times of diameter of radial-flow type blade 202.On distributor pipe 602, the aperture in the hole of distribution is 5mm.Component distributor 6 is installed
Between described radial-flow type blade 202 and the second axial-flow type blade 203.Between component distributor 6 and described radial-flow type blade 202
Vertical dimension equal to the height of described radial-flow type blade 202.
Arranging baffle plate 4 in cylinder 302, baffle plate 4 is uniformly arranged in the position of the close inwall of cylinder 302, from span from for
The 1/10 of baffle plate 4 width, the quantity of installation is 6.The length of baffle plate 4 is identical with the length of straight flange of cylinder 302, and width is cylinder
The 1/11 of the diameter of 302.
Multiple material gateway is also set up, including feed pipe 8, discharging opening 10, material discharging hole 7 on housing 3.Feed pipe 8
On be additionally provided with recycle feed pipe 9.Discharging opening 10 is positioned at the sidewall of cylinder 302.Feed pipe 8 is positioned on low head 303.Material emptying
Mouth 7 is positioned on low head 303.
2, heat exchanger
Heat exchanger includes: heat exchanger shell 13；Heat exchanging pipe 18；Heat transferring medium import 16；Heat transferring medium outlet 17；Material
Entrance 12；Material outlet 20；Product exit 14.The top and bottom of described heat exchanger shell 13 are closed by end socket 15.Described
Heat transferring medium import 16 and heat transferring medium outlet 17 be present on end socket 15.
Also include in described heat exchanger: tubulation gripper shoe 19, be used for fixing heat exchanging pipe 18.Comprise heat transferring medium import
In the end socket 15 of 16, it is additionally provided with the device of distribution heat transferring medium so that the heat transferring medium of inflow is evenly distributed on heat exchanging pipe
In.
3, connecting tube
Described reactor also includes the first connecting tube 11 and the second connecting tube 21 between emulsator and heat exchanger, is used for
Carry out the mass transfer between emulsator and heat exchanger.
Embodiment 2, the outer circulation type alkylation of strengthening conveying
1, reactions steps
With simulation medium, (as continuous phase, isobutyltrimethylmethane. is dispersion phase to syrup saline solution.The density ratio of continuous phase and dispersion phase
Ratio of viscosities for 1.5:1, continuous phase and dispersion phase is 80:1).Drive with the stirring of rotating speed 500rpm.
The outer circulation type alkylation reactor utilizing the strengthening conveying described in embodiment 1 is simulated reaction, and step is as follows:
In the outer circulation type alkylation reactor described in embodiment 1, by feed pipe 8 in emulsator housing 3 continuously
Ground input continuous phase material (the first reaction mass), after continuous phase material submergence radial-flow type blade 202, opens stirring and drives electricity
Machine 1；Then in emulsator housing 3, dispersion phase material (the second reaction mass) is inputted continuously by component distributor 6.
Dispersion phase material circulation shear under radial-flow type blade 202 with the common effect of baffle plate 4 disperses, enters by the second axle
Streaming blade 203 sucks in the continuous phase material carried, by the first further dispersion and emulsion of axial-flow type blade 201, (this example is adopted again
Simulate emulsifying with simulation medium, do not produce heat release；When being alkylated reaction, dispersion phase is by radial-flow type blade 202 He
There is chemical reaction while axial-flow type blade 201 dispersion and emulsion and conveying and release reaction heat).Flow continually out from discharging opening 10
Emulsion entered between the pipe of the heat exchanging pipe 18 in heat exchanger 13 through the first connecting tube 11 by material inlet 12, (anti-when producing
Should heat time, material during flow further downstream along between pipe with the medium generation heat exchange effect in heat exchanging pipe bundle 18 pipe, move
In the range of walking to react liberated heat thus reaction temperature being maintained at suitably).Material after heat exchanging pipe is from heat exchange
The material outlet 20 of device returns to emulsifying and reaction further in emulsator with new material after the second connecting tube 21 merges, and material exists
Circulate between emulsator and heat exchanger.
From the material of emulsator inflow heat exchanger, can flow out and obtain through subsequent operation target from product exit 14 part and produce
Thing.
2, reaction effect
The shifting thermic load of alkylation reactor is determined by process conditions, and is jointly completed by emulsator and heat exchanger.Emulsifying
The heat exchange efficiency of device and heat exchanger and emulsator and the turnover state parameter of the heat exchange area of heat exchanger and heat transferring medium and flowing
Speed is relevant, simultaneously the most relevant with the flowing velocity of material between the material in emulsator and heat exchanger tube.Emulsator and heat exchange
The heat exchange area of device is big, the fast the most then heat exchange efficiency of flowing velocity of material and heat transferring medium is high, and heat transferring medium occurs vaporization phase transformation then
Heat exchange efficiency can be made to significantly improve.
When design suitably reduces flow velocity in heat exchanger, material will occur phase separation.Dispersion phase is because density is low
Floating and flow out from product exit, continuous phase then settles because density is big.Sedimentation gravity and the axial flow in emulsator of continuous phase
Formula blade conveying power upwards is consistent, thus beneficially material circulating between emulsator and heat exchanger, promotion mass transfer,
Reaction and heat exchange.
The parameters such as the emulsifying degree of system material, emulsion droplet size, Matter Transfer flowing velocity reflect the biography of reaction
Matter and heat-transfer effect, these effects can be embodied in unresponsive simulation medium.
Use the simulation medium in aforementioned " 1 " and method to carry out Characterization result, from emulsator, gather emulsion carry out one
The investigation of a little parameters, result is as follows:
(1) reaction mass emulsifying degree is investigated
Obtain the emulsion through emulsator emulsifying, investigate the time used by emulsion split-phase 50%.After measured, emulsion split-phase
The time needed when 50% is 40～70min.
Visible, in mechanical agitation type Continuous Emulsifier of the present utility model, use the radial-flow type oar that power input capability is strong
Leaf, matches with the baffle plate installed, adds the mating reaction of axial-flow type blade, it is achieved that efficiently shearing dispersion and reaching material
To suitable emulsifying degree.
(2) reaction efficiency is investigated
Obtain the emulsion through emulsator emulsifying, investigate the liquid-drop diameter of dispersion phase.After measured, the liquid-drop diameter of dispersion phase
d32The content of ＜ 80 μm is more than 80%.Dispersed phase drop diameter is little, is conducive to improving mass transfer interfacial area and renewal thereof, thus carries
High reaction efficiency.
(3) Matter Transfer parameter is investigated
In course of reaction, measure reaction mass loop parameter.After measured, the recycle stream calculated with axial-flow type diameter of propeller blade
Amount number is more than 0.79.Higher circular flow number is conducive to meeting ratio inside and outside the circulation of alkylated reaction, improves heat exchange efficiency.
(4) the unit volume power of agitator of dispersion and emulsion system consumes
After measured, the specific volume power consumption of dispersion and emulsion system is 3～10kw/m3In the range of.Visible, this practicality is new
The outer circulation type alkylation reactor of type has the highest production efficiency.
Emulsator described in the utility model is while strengthening circulates ability, and the shearing of axial-flow type blade disperses energy
Power is improved.In view of excessive dispersion and emulsion can affect split-phase performance, the diameter of radial-flow type blade is carried out Reasonable adjustment, from
And realize power consumption reasonable distribution on two kinds of blades, and meet dispersion and emulsion and strengthen conveying, overall power consumption balanced condition.
When needs temperature adjusts, heat exchanger provides the effect realizing heat exchange.
It should be noted that embodiment of the present utility model is only used in order to the technical solution of the utility model to be described
In limiting protection domain.Should be understood that those skilled in the art are permissible after having read above-mentioned teachings of the present utility model
Making various changes or modifications this utility model, these equivalent form of values fall within what the application appended claims was limited equally
Scope.
Claims (25)
1. the outer circulation type alkylation reactor strengthening conveying, it is characterised in that described reactor includes emulsator and changes
Hot device；
Described emulsator includes: emulsator housing (3)；Stirring drives motor (1)；Shaft (2), it is by stirring driving motor
(1) drive；First axial-flow type blade (201), it is positioned on shaft；Second axial-flow type blade (203), it is positioned at shaft
On；Radial-flow type blade (202), its be positioned on shaft the first axial-flow type blade (201) and the second axial-flow type blade (203) it
Between；Baffle plate (4)；Component distributor (6)；Feed pipe (8)；With discharging opening (10)；
Described heat exchanger includes: heat exchanger shell (13)；Heat exchanging pipe (18)；Heat transferring medium import (16)；Heat transferring medium goes out
Mouth (17)；Material inlet (12)；Material outlet (20) and product exit (14)；
Described reactor also includes the first connecting tube (11) between emulsator and heat exchanger and the second connecting tube (21).
2. the outer circulation type alkylation reactor of strengthening conveying as claimed in claim 1, it is characterised in that described emulsator is also
Including:
Heat exchange jacket (5), it is positioned on housing exterior walls.
3. the outer circulation type alkylation reactor of strengthening conveying as claimed in claim 2, it is characterised in that described heat exchange folder
Set (5) includes half tubular heat exchange coil.
4. the outer circulation type alkylation reactor of strengthening conveying as claimed in claim 1, it is characterised in that described emulsator is also
Including:
Material discharging hole (7)；Or
Recycle feed pipe (9) is also included on described feed pipe (8).
5. the outer circulation type alkylation reactor of strengthening conveying as claimed in claim 1, it is characterised in that described emulsator
Housing (3) including: upper cover (301)；Cylinder (302)；Low head (303).
6. the outer circulation type alkylation reactor of strengthening conveying as claimed in claim 5, it is characterised in that described upper envelope
Head (301) and low head (303) are spheroid shape end enclosure structure.
7. the outer circulation type alkylation reactor of the strengthening conveying as described in claim 1-4 is arbitrary, it is characterised in that described
Discharging opening (10) is positioned at the sidewall of cylinder (302)；Or
Described feed pipe (8) and recycle feed pipe (9) are positioned on low head (303)；Or
Described material discharging hole (7) is positioned on low head (303)；Or
Described component distributor (6) enters in housing through housing (3)；Or
Described heat exchange jacket (5) is covered in the sidewall of cylinder (302)；Or
Described shaft (2) passes upper cover (301), is positioned in low head (303).
8. the outer circulation type alkylation reactor of strengthening conveying as claimed in claim 1, it is characterised in that the first described axle
Streaming blade (201) and the second axial-flow type blade (203) are selected from: propeller, Aerofoil impeller；Or
The first described axial-flow type blade (201) and the 0.80 of a diameter of cylinder (302) diameter of the second axial-flow type blade (203)
～0.88 times；Or
The first described axial-flow type blade (201) is installed on the upper bottom portion vertical dimension of the upper distance upper cover (301) of shaft (2)
For the position of 0.8～1.5 times of described cylinder (302) diameter；Or
The second described axial-flow type blade (203) is installed on the lower bottom part vertical dimension of the upper distance low head (303) of shaft (2)
For the position of 0.2～1.5 times of described cylinder (302) diameter.
9. the outer circulation type alkylation reactor of strengthening conveying as claimed in claim 8, it is characterised in that the first described axle
Streaming blade (201) and the second axial-flow type blade (203) are propellers.
10. the outer circulation type alkylation reactor of the strengthening conveying as described in claim 1-5 is arbitrary, it is characterised in that described
Radial-flow type blade (202) be selected from: straight leaf disc vane wheel oar, symmetrical recessed leaf disc vane wheel oar, asymmetric recessed leaf disc vane wheel oar,
Tiltedly leaf oar；Or
Described radial-flow type blade (202) is one or more；Or
0.45～0.55 times of a diameter of cylinder (302) diameter of described radial-flow type blade (202).
The 11. outer circulation type alkylation reactors that strengthening carries as claimed in claim 10, it is characterised in that described footpath
Streaming blade (202) is disc turbine oar.
The 12. outer circulation type alkylation reactors that strengthening carries as claimed in claim 10, it is characterised in that described runoff
Formula blade (202) is 1～5.
The 13. outer circulation type alkylation reactors that strengthening carries as claimed in claim 10, it is characterised in that described is multiple
The interlamellar spacing of radial-flow type blade is 0.8～1.5 times of described radial-flow type blade (202) diameter.
The 14. outer circulation type alkylation reactors that strengthening carries as claimed in claim 1, it is characterised in that described baffle plate
(4) quantity is 2～12；Or
The length of described baffle plate (4) is identical with the length of straight flange of cylinder (302)；Or
The inwall of described baffle plate (4) and cylinder (302) from span from for the 1/12～1/8 of baffle plate (4) width.
The 15. outer circulation type alkylation reactors that strengthening carries as claimed in claim 14, it is characterised in that described baffle plate
(4) quantity is 2-10 sheet.
The 16. outer circulation type alkylation reactors that strengthening carries as claimed in claim 14, it is characterised in that baffle plate (4) is
Equally distributed.
The 17. outer circulation type alkylation reactors that strengthening carries as claimed in claim 14, it is characterised in that described baffle plate
(4) width is the 1/12～1/10 of the diameter of described cylinder (302).
The 18. outer circulation type alkylation reactors that strengthening carries as claimed in claim 5, it is characterised in that described baffle plate
(4) width is the 1/20～1/8 of the diameter of described cylinder (302).
The 19. outer circulation type alkylation reactors that strengthening carries as claimed in claim 1, it is characterised in that described component
Distributor (6) includes charging aperture (601) and distributor pipe (602)；The upper distribution of described distributor pipe (602) is porose；Or
Described component distributor (6) is installed between described radial-flow type blade (202) and the second axial-flow type blade (203).
The 20. outer circulation type alkylation reactors that strengthening carries as claimed in claim 19, it is characterised in that described component
Vertical dimension between distributor (6) and described radial-flow type blade (202) be described radial-flow type blade (202) height 0.5～
1.5 again.
The 21. outer circulation type alkylation reactors that strengthening carries as claimed in claim 20, it is characterised in that described component
Vertical dimension between distributor (6) and described radial-flow type blade (202) be described radial-flow type blade (202) height 0.8～
1.2 again.
The 22. outer circulation type alkylation reactors that strengthening carries as claimed in claim 19, it is characterised in that described component
Distributor (6) is tubular type distributor.
The 23. outer circulation type alkylation reactors that strengthening carries as claimed in claim 19, it is characterised in that described distribution
0.8～1.2 times of a diameter of described radial-flow type blade (202) diameter of pipe (602).
The 24. outer circulation type alkylation reactors that strengthening carries as claimed in claim 1, it is characterised in that described heat exchange
The top and bottom of device housing (13) are closed by end socket (15)；Or
Also include in described heat exchanger: tubulation gripper shoe (19), be used for fixing heat exchanging pipe (18).
The 25. outer circulation type alkylation reactors that strengthening carries as claimed in claim 24, it is characterised in that described heat exchange
Medium entrance (16) and heat transferring medium outlet (17) are present on end socket (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620232902.2U CN205850826U (en) | 2016-03-24 | 2016-03-24 | A kind of outer circulation type alkylation reactor strengthening conveying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620232902.2U CN205850826U (en) | 2016-03-24 | 2016-03-24 | A kind of outer circulation type alkylation reactor strengthening conveying |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642217A (en) * | 2016-03-24 | 2016-06-08 | 华东理工大学 | Transportation-reinforced external circulation type alkylation reactor and alkylation reaction method |
-
2016
- 2016-03-24 CN CN201620232902.2U patent/CN205850826U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642217A (en) * | 2016-03-24 | 2016-06-08 | 华东理工大学 | Transportation-reinforced external circulation type alkylation reactor and alkylation reaction method |
| CN105642217B (en) * | 2016-03-24 | 2019-02-01 | 华东理工大学 | A kind of outer circulation type alkylation reactor and alkylation reaction method for strengthening conveying |
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