CN106512867B - The method for arranging of gas-liquid-solid multiphase flow reactor and its filter - Google Patents
The method for arranging of gas-liquid-solid multiphase flow reactor and its filter Download PDFInfo
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- CN106512867B CN106512867B CN201510580499.2A CN201510580499A CN106512867B CN 106512867 B CN106512867 B CN 106512867B CN 201510580499 A CN201510580499 A CN 201510580499A CN 106512867 B CN106512867 B CN 106512867B
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Abstract
The invention discloses a kind of gas-liquid-solid multiphase flow reactor and its method for arranging of filter, gas-liquid-solid multiphase flow reactor includes reactor body (1) and the filter (2) in the reactor body (1), it is characterized in that, the filter (2) includes circumferentially in multiple filter assemblies (21) of circle arrangement, wherein the slower region of slurry flow rate is avoided at the center of each filter assemblies (21).The present invention is in the arrangement for being filtered device, consider the hydrodynamic factors such as the flowing velocity of slurries and solid holdup in filter body, due to avoiding the slower region of the slower slurry flow rate of flowing velocity, it can be washed in time using filter cake is formed by the filter of cross-flow filtration, without quickly thickening, equally avoiding the higher region of solid holdup can also quickly thicken to avoid filter cake, to increase the filter capacity of filter and stablize the time of filtering, the strainability of filter is significantly improved.
Description
Technical field
The present invention relates to the filtration arts of gas-liquid-solid multiphase flow reactor, and in particular, to a kind of gas-liquid-solid multiphase flow is anti-
Answer the method for arranging of filter in device, and the gas-liquid-solid multiphase flow reactor using this method.
Background technique
In the reaction system of gas-liquid-solid multiphase flow, such as F- T synthesis paste state bed reactor, reaction gas is from reactor bottom
Into with solid catalyst and liquid product formation gas-liquid-solid three-phase bed, to keep liquid level, these liquid products need to use
Filter method separate with solid catalyst and outflow reactor.Filter method is divided into built-in filtering and two kinds of skills of outer filtering again
Art.Outer filtering refers to be separated in the filter separated the multiphase flow object pastern in reactor outside reactor, has been separated
It needs to participate in reaction back in reactor at the rear remaining material including solid particle catalyst, outer filtering technique
Advantage be external filter can online repair and replacement, but the disadvantage is that structure is complicated, operation and maintenance cost is high.Industrial production at present
Large-scale multiphase flow reactor use built-in filter technology mostly, i.e., filter assemblies are placed into reactor, using cross-flow
Slurries are separated to outside reactor by the technological means of filtering by the pipeline connected with filter core, and interior filter assemblies structure is simple, behaviour
Facilitate, but need enough filter areas and reasonable filter core preferred arrangement, guarantees that interior filter assemblies can be filtered steadily in the long term
Slurries out, the disadvantage is that filter assemblies can not be replaced online.
Meanwhile to guarantee mass transfer, heat-transfer effect in gas-liquid-solid multiphase flow reactor, also require solid particle will be in suspension
State will not be entrained out reactor under the conditions of certain empty tower gas velocity, will not occur largely to deposit.It is general to require
50 microns of mean particle size, while particle < 5% less than 20 microns.In the operational process of reactor, sub-fraction
Catalyst granules can also occur because of reasons such as physical abrasion or chemical stress it is broken, the broken fine grained fallen some to be even less than 5 micro-
Rice, may block filter duct, and therefore, the specification of structure and filtering gap to filter element has very high want
It asks, it generally need to be using sintering metal, sintered metal mesh or ceramic capillary filter etc..
Interior filter core disclosed in Chinese patent application CN101396647A is substantially all near reactor wall annular
It is evenly arranged.Since filter core is only to be uniformly distributed close to wall, the area of section of entire reactor is not made full use of, it can
Filter area deficiency can be will cause or arrangement spacing is unsatisfactory for the problems such as requiring.Additionally, due to consideration inside reactor multiphase flow
Factor is less, can have an impact to the filtering stability of filter.
Summary of the invention
It is an object of the present invention to provide a kind of gas-liquid-solid multiphase flow reactor, the filter in the reactor, which is arranged, to be closed
Reason, is able to ascend the strainability of filter.
It is a further object to provide a kind of method for arranging of gas-liquid-solid multiphase flow reactor internal filter, the cloth
It sets that method is rationally ingenious, is able to ascend the strainability of filter.
To achieve the goals above, according to an aspect of the present invention, a kind of gas-liquid-solid multiphase flow reactor is provided, including
Reactor body and the filter in the reactor body, the filter include the circumferential direction of the reactor in multi-turn cloth
The multiple filter assemblies set, wherein slurry flow rate is avoided compared with the slow and/or higher area of solid holdup in the center of each filter assemblies
Domain, wherein
The slower region of the slurry flow rate refers to: flow velocity is in the region of 0-10cm/s；The higher region of solid holdup refers to:
Solid content concentration 5% area above higher than reactor center solid content concentration.
Preferably, the slower region of the slurry flow rate meets: 0.75R≤rd≤ 0.85R, wherein R is the reactor
The radius of ontology, rdFor the slower region of slurry flow rate to the distance at the reactor body center.
Preferably, the higher region of the solid holdup meets: 0≤rb≤ 40mm, rbFor the filter assemblies outer edge away from
The minimum radial distance of inner sidewall from the reactor body, wherein the radius R > 300mm of the reactor body.
Preferably, each filter assemblies integrally avoid slurry flow rate compared with the slow and/or higher region of solid holdup.
Preferably, the multi-turn filter assemblies include being located at outermost first lap and adjacent with the first lap second
Circle, wherein each filter assemblies are located at the slower areas outside of the slurry flow rate and each filter assemblies in the first lap
Center avoid the higher region of the higher solid holdup of solid holdup, and each filter assemblies are located at the slurry in second circle
The slower area inside of flow velocity.
Preferably, the first lap is arranged in the first circumference, which is located at the slower region of the slurry flow rate
Between the higher region of solid holdup, second circle is arranged in the second circumference, which is located at the slurry stream
The slower area inside of speed, and meet: 0.65R < r2< 0.75R, wherein r2For second circumference to the reactor body
The distance at center.
Preferably, the multi-turn filter assemblies further include the n-th circle, and the circumference of the n-th circle arrangement meets: [0.65-0.1 (n-
2)]R<rn<[0.75-0.1 (n-2)] R, wherein n>=3, wherein rnThe circumference arranged is enclosed to the reactor body center for n-th
Distance.
Preferably, the circumference of n-th circle meets: rn>0.2R。
Preferably, the filter core of multiple parallel arrangements is parallel in the filter assemblies, the circumscribed circle of the filter assemblies is straight
Diameter is D, and the diameter of the filter core is d, and in circle or in adjacent turn, the center of two adjacent filter assemblies is away from for L, and
And meet L >=D+2d.
Preferably, the center of the two neighboring filter core in the filter assemblies is away from for t, and meets t < 0.8D, and
5d≥t≥2.5d。
According to another aspect of the present invention, a kind of method for arranging of filter in gas-liquid-solid multiphase flow reactor, institute are provided
It states method for arranging and comprises determining that the slower slurry flow rate of slurry flow rate in reactor body is higher compared with slow and/or solid holdup
Multiple filter assemblies in the filter are circumferentially in circle arrangement, and make the center of each filter assemblies equal by region
The slurry flow rate is avoided compared with the higher region arrangement of slow and/or solid holdup.
Preferably, the slower region of the slurry flow rate meets: 0.75R≤rd≤ 0.85R, wherein R is the reactor
The radius of ontology, rdFor the slower region of slurry flow rate to the distance at the reactor body center.
Preferably, the higher region of the solid holdup meets: 0≤rb≤ 40mm, rbFor the filter assemblies outer edge away from
The shortest diameter of inner sidewall from the reactor body is with a distance from, wherein the radius R > 300mm of the reactor body.
Preferably, so that each filter assemblies integrally avoid slurry flow rate compared with the slow and/or higher area of solid holdup
Domain.
Through the above technical solutions, the present invention is in the arrangement for being filtered device, it is contemplated that reactor gas-liquid-solid bed
Hydrodynamics state, wherein avoid the slower region of flowing velocity, using being formed by the filter of cross-flow filtration
Filter cake can be obtained in time slurries and be washed away, without quickly thickening, to increase the filter capacity of filter and stablize
The strainability of the time of filter, filter are significantly improved.And the higher region of solid holdup is avoided, it can also be to avoid filtering group
Filter cake on part will be thickened quickly, to guarantee the filter efficiency of filter assemblies.
In addition after carrying out blowback to filter, a large amount of solid particle is contained from the filter cake that filter core blowback is got off, if
Filter assemblies are arranged in that flow velocity is lower or the higher region of solid holdup, these filter cakes can not be by slurries or gas rapid dispersion
Participate in reaction, it is more likely that be adsorbed onto outside filter core quickly after implementing filtering again after filter blowback, cause filter cake thickness fast
Speed increases, and also will affect the normal filtration of filter in this way, reduces its filter capacity.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the cross section structure schematic diagram for the gas-liquid-solid multiphase flow reactor that the preferred embodiment for the present invention provides；
Fig. 2 is the cross section structure schematic diagram of the filter assemblies provided in one embodiment of the present invention；
Fig. 3 is the cross section structure schematic diagram for the filter assemblies that another embodiment of the present invention provides；
Fig. 4 is the structural schematic diagram of the filter assemblies in the preferred embodiment for the present invention by general pipeline connection；
Fig. 5 is the cross section structure schematic diagram for the gas-liquid-solid multiphase flow reactor that the preferred embodiment of the present invention provides；
Fig. 6 is slurry flow rate and region inside the reactor body tested when empty tower gas velocity is 0.1,0.2 and 0.3m/s
Functional arrangement；
Fig. 7 is that the gas of multiphase flow inside the reactor body tested when empty tower gas velocity is respectively 0.1,0.2 and 0.3m/s contains
The functional arrangement of amount and region.
Description of symbols
1 reactor body, 2 filter
21 filter assemblies, 22 filter core
The lower header of header 24 on 23
The lower general pipeline of general pipeline 26 on 25
31 first laps 32 second circle
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower " is the drawing with Fig. 4
It is defined on the basis of direction, in addition " inside and outside " refers to the inner and outer of corresponding component profile.
As shown in Figures 1 to 7, the present invention provides the method for arranging of filter in a kind of gas-liquid-solid multiphase flow reactor and makes
With the gas-liquid-solid multiphase flow reactor of the method for arranging, such as F- T synthesis paste state bed reactor.Wherein, gas-liquid-solid multiphase flow is anti-
Answering device includes reactor body 1 and the filter 2 in the reactor body 1, i.e. the gas-liquid-solid multiphase flow reactor uses
The mode of internal cross-flow filtration is isolated to by slurries from the inside of reactor body 1.
In order to promote the strainability of filter 2, the present invention is in the arrangement for being filtered device, not with being intended to filter
It is arranged in ontology 1, but considers filtering of the hydrodynamic characteristic of multiphase flow in filter body 1 to filter 2
The influence of performance, for the arrangement using differentiation of different zones, to promote the strainability of filter 2.
Specifically, method for arranging provided by the invention comprises determining that the slower area of the slurry flow rate in reactor body 1
Domain, the circumferential direction by multiple filter assemblies 21 in filter along reactor body 1 arrange in multi-turn, wherein multi-turn filter assemblies edge
Spaced radial setting, and it is located at same circumference with multiple filter assemblies 21 in enclosing.And make each filter assemblies 21
Avoid the slower region arrangement of slurry flow rate in center.That is, in gas-liquid-solid multiphase flow reactor provided by the invention, filter
2 include circumferentially in circle arrangement multiple filter assemblies 21, wherein the center of each filter assemblies 21 avoid slurry flow rate compared with
Slow region.
Therefore, in the inventive solutions, the present invention considers the factor of the flowing velocity of slurries, due to avoiding
The slower region of flowing velocity can be obtained flowing velocity using filter cake is formed by the filter of cross-flow filtration in time
Faster slurries wash away, without quickly thickening, to increase the filter capacity of filter and stablize the time of filtering, filter
Strainability be significantly improved.In addition after carrying out blowback to filter, containing a large amount of from the filter cake that filter core blowback is got off
Solid particle, if filter assemblies are arranged in the lower region of flow velocity, these filter cakes can not be quick by slurries or gas
Dispersion participates in reaction, it is more likely that is adsorbed onto outside filter core quickly after filtering again after filter implements blowback, causes filter cake thick
Degree quicklys increase, and also will affect the normal filtration of filter in this way, reduces its filter capacity.
In addition, invention also contemplates that in slurries solid holdup factor.This is because, being located in the higher region of solid holdup
Filter outside filter cake will quickly thicken, and due to solid holdup height, slurries will be substantially reduced by isolated efficiency, to make
It is poor at the filter strainability in the region.Therefore, method for arranging provided by the invention further include: determine reactor body
The higher region of solid holdup in 1, and the higher region of solid holdup is avoided at the center of each filter assemblies 2 and is arranged.That is, at this
It invents in the gas-liquid-solid multiphase flow reactor provided, the higher region of solid holdup is also avoided at the center of each filter assemblies 2, thus
Promote the strainability of filter 2.
Wherein, the region of " slurry flow rate is slower " in the present invention refers to: flow velocity is in the region 0-10cm/s, preferably 0-5cm/s
Region, and the higher region of solid holdup refers to: the region of solid concentration higher than reactor center concentration 5% or more, due to gas holdup+
Solid content=100%, it may also be said to the region of gas holdup lower than reactor center gas holdup 5% or more.
In addition, avoiding saying for the slurry flow rate higher region of lower solid holdup using the center of filter assemblies 2 in the present invention
Method allows for filter assemblies with circumscribed circle diameter D, that is, the filter assemblies itself are also midpoint respectively to reaction using center
Device center and reactor wall extend D/2, in other words, same filter assemblies be provided with simultaneously closer and farther from it is above-mentioned two should
Two boundaries in the region avoided, the boundary effect far from the two regions are more preferable.Therefore, take the center of filter assemblies 2 for ginseng
It is for the effect for avoiding the two regions of this average filter assemblies according to point.
Again therefore, in a preferred embodiment of the invention, in order to further solve the shadow of filter assemblies circumscribed circle diameter D
It rings, the present invention is lower and/or when the higher region of solid holdup is filtered the arrangement of component for slurry flow rate, it is preferable that
So that each filter assemblies integrally avoid slurry flow rate compared with the slow and/or higher region of solid holdup, that is, any position of filter assemblies
It sets and avoids corresponding above-mentioned zone, to obtain best effect.At this point, if being with mistake when arranging filter assemblies 21
The center of filter component 21 is reference point to avoid slurry flow rate compared with the slow or higher region of solid holdup, then in order to filter group
Part integrally is avoided accordingly carrying out region, then on the region for needing to position on the basis of by center, correspondingly plus or minus extremely
Few D/2, normally in order to guarantee effect, it is preferable to D≤0.1R.
Further, in order to make full use of the space inside reactor body 1, method for arranging provided by the invention further includes
The filter assemblies 21 of the radially spaced arrangement of multi-turn are set in reactor body 1.I.e. in gas-liquid-solid multiphase provided by the invention
In flow reactor, filter 2 includes the multi-turn filter assemblies 21 of radially spaced arrangement.Therefore the radially spaced setting of multi-turn
Filter assemblies 21 can make full use of the space in reactor body 1, dramatically increase the filter area of filter 2, thus into one
Step increases the strainability of filter 2 provided by the invention.Wherein it is preferred to which multi-turn filter assemblies 21 should all be same in arrangement
When avoid the slower higher region in region and solid holdup of slurry flow rate, to guarantee the promotion of strainability.
Based on the above-mentioned design of the present invention, it can accurately determine that slurry flow rate is slower by test, theory deduction etc. modes
Region and the higher region of solid holdup.The mode in the slower region of determining slurry flow rate is described first.
As shown in fig. 6, being tested so that empty tower gas velocity is 0.1,0.2 and 0.3m/s as an example, slurry flow rate uses Pavlov
Pipe measures (bibliography: the axial slurry velocity of Zhang Yu, Wang Lijun, Li Xi turbulence slurry bed system hydrodynamics research (II)
Radial distribution [J] Journal of Chemical Industry and Engineering, 2008,59 (12): 3003-3008), in the reactor body 1 that radius is R, it can be seen that
Under different empty tower gas velocities, slurries flowing velocity is almost nil at the region of 0.8R or so, and when more than 0.8R, slurries are again
Start flowing and it is opposite with flow direction before.Therefore it can be concluded that the lower area of slurry flow rate mentioned in the present invention
Domain is located at 0.8R or so, and in this region, the strainability decline of filter 2 is obvious.Therefore it when arranging filter 2, answers
It should be so that filter assemblies 21 avoid the region.The test under other empty tower gas velocities can additionally be carried out to verify this conclusion.
Specifically, the slower region of slurry flow rate meets: 0.75R≤rd≤ 0.85R, wherein rdIt is the slower region of flow velocity to instead
Answer the distance at 1 center of device ontology.It is highly preferred that the region meets: 0.77R≤rdThe region of≤0.82R, especially 0.8R, that is,
It needs to avoid to arrange filter assemblies 21 on region in this area.In other words, the slower radial zone of slurry flow rate is to flow
Speed is the region centered on 0 region, and the region that flow velocity is zero is substantially in 0.8R, centered on herein, respectively into reactor
It then can be that preferred flow velocity is slower in the present invention that the heart and reactor wall direction, which respectively extend the substantially region of 0.05R to define,
Region, i.e. 0.75R≤rd≤ 0.85R, flow velocity is in 0-10cm/s in the area.
As for the determination in the higher region of solid holdup, can in conjunction with gas holdup in multiphase flow as shown in Figure 7 test into
Row verifying, wherein gas holdup and solid holdup are substantially in that inverse ratio has reference value.The wherein test result of solid holdup and document knot
Seemingly, lower in the center solid holdup of reactor body 1, solid holdup is higher near the wall of reactor body 1 for fruit, tool
Body, in the region solid holdup highest for being greater than 0.95R.Wherein in order to further verify the conclusion, according to hydromechanical boundary
Shelf theory, due to the presence in slurries boundary layer at the wall close to reactor body 1, gas holdup larger can also be reduced, i.e., this
Solid holdup can be higher in the three-phase flow at place.And as shown in fig. 7, empty tower gas velocity be 0.1,0.2 and 0.3m/s when, reactor diameter
To gas holdup with measurement point change in location, close to reactor wall radial gas holdup it is relatively low, be corresponding to it slurries or
Concentration of slurry, that is, solid holdup is higher.Therefore, when arranging filter assemblies, it is required that filter assemblies and reactor wall interval
It opens, at this point, the higher region of solid holdup described in the present invention needs to meet, 0≤rb≤ 40mm, rbFor filter assemblies outer edge
Shortest diameter apart from wall of reactor is to distance, and solid concentration is higher than reactor center concentration by 5% or more in the area.In addition
The radius R > 300mm of usual reactor.
As can be seen that slurry stream during the higher region in region and solid holdup slower from above-mentioned determining slurry flow rate
The slower region of speed is located at the inside in the higher region of solid holdup, in order to enable every circle in the filter assemblies 21 of multi-turn arrangement is same
When meet and avoid the slower region of slurry flow rate and the higher area requirement of solid holdup, it is preferable that multi-turn filter assemblies 21 include
Positioned at outermost first lap 31 and second circle 32 adjacent with the first lap 31, wherein outermost first lap 31 will be located at
In each filter assemblies be centrally disposed on the slower areas outside of slurry flow rate and avoid the higher solid holdup of solid holdup compared with
High region arrangement, i.e., by avoiding the slower region of slurry flow rate and the higher region of solid holdup, and will be with the first lap
The inside for being centrally disposed on the slower region of slurry flow rate of each filter assemblies in 31 adjacent second circles 32, in this way this
Each filter assemblies in two circles 32 can equally avoid the slower region of slurry flow rate and the higher region of solid holdup simultaneously.
First lap 31 is wherein arranged in the first circumference (center edge of filter assemblies 21 as a preferred implementation manner,
First circumference), which is located between the slower region of slurry flow rate and the higher region of solid holdup, and full
Foot: 0.85R < r1< 0.95R, wherein r1For the first circumference to the distance in reactor body 1.And the second circle 32 is arranged in second
Circumference, which is located at the slower area inside of slurry flow rate, and meets: 0.65R < r2< 0.75R, wherein r2It is second
Distance of the circumference to 1 center of reactor body.It is kept away in this way, can make the center of two circle filter assemblies 21 that can meet simultaneously
The requirement in the slower region of slurry flow rate and the higher region of solid holdup is opened, and can make full use of the sky of reactor body 1
Between, guarantee strainability.
In addition, more multi-turn filter assemblies 21 can also be arranged, at this time in this hair according to the specification of reactor body 1
In the method for arranging of bright offer, the circumference of arrangement the n-th circle filter assemblies 21 meets: [0.65-0.1 (n-2)] R < rn<[0.75-
0.1 (n-2)] R, wherein n > 2, wherein rnThe region of arrangement is enclosed to the distance at 1 center of reactor body for n-th.Such as such as Fig. 1 institute
Show, the circumference of the center arrangement of each filter assemblies 21 in third circle 33 meets: 0.55 < r5<0.65.And so on, with reality
Now uniformly fully utilize the space in filter body 1.It should be noted that the above-mentioned first lap of the present invention, the second circle and
The position of n-th circle refers to the region at the center of each filter assemblies in corresponding enclose.
In addition, entering filter 2 since the slurry flow rate at 1 center of reactor body is too fast in order to avoid influencing slurries
Efficiency, therefore also should be avoided and arrange filter assemblies 21 in central area.Thus, it is preferable that the circumference of the n-th circle meets: rn>
0.2R.That is, as shown in Figure 1, the center of all filter assemblies 21 should all be located at the outside of 0.2R in diagram.
As shown in Figure 2, Figure 3 and Figure 4, in a preferred embodiment of this invention, it is parallel in filter assemblies 21 multiple parallel
The filter core 22 of arrangement, the quantity of the filter core 22 in each component 21 are 1-12, and specifically multiple filter cores 22 can use metal
Or ceramic capillary membrane tube etc. is made, multiple filter cores 22 in same filter assemblies 21 are connected in parallel on by upper header 23 and lower header 24
Together, it is worked with the filtration and blowback of realizing same filter assemblies 21 by upper and lower header.In addition, more in same circle
A filter assemblies 21 can also be connected in parallel by upper general pipeline 25 and lower general pipeline 26, be worked with being filtered simultaneously with blowback.
In specific placement process, two outlets up and down of the filter core 22 in each filter assemblies 21 are connected respectively to same filter assemblies
On 21 upper and lower header, if the quantity of each circle filter assemblies 21 is 3-6, these headers can be directly connected to react
Filtering or blowback pipeline outside device, if filter assemblies 21, more than 6, needing at least two filter assemblies 21, (maximum is no more than
10) become one big group, the upper and lower header for the filter assemblies 21 each organized greatly need to be connected on upper and lower general pipeline after again
Draw reactor body 1.
Wherein, the circumscribed circle diameter of filter assemblies 21 is D, and the diameter of filter core 22 is d, in order to give full play to each filtering group
The function of part 21, it is preferable that the center with adjacent two filter assemblies 21 in circle or in adjacent turn away from for L, and meet L >=
D+2d.In this way, each filter assemblies 21 can sufficiently be filtered surrounding region, without arranging excessive filtering
Component 21 causes the excessive occupancy to 1 inner space of reactor body.In addition to the function of each filter core 22 is given full play to, it is excellent
Selection of land, the center of the two neighboring filter core 22 in same filter assemblies 21 meet t < 0.8D away from for t, and 5d >=t >=
2.5d, no matter one group of three filter cores as shown in Figure 2 in this way or as shown in Figure 3 one group of four filter cores, can sufficiently wave
The effect of sending out filter core 22 each, without excessively arranging filter core.In addition, the circumscribed circle diameter of filter assemblies 21 is preferably 0.05R
≤ D≤0.1R, so that when the higher region in the region and solid holdup that avoid slurry flow rate slower at center of filter assemblies 21,
Whole strainability is more preferable.
In addition, the circumscribed circle diameter for being located at the filter assemblies 21 of different circles can be different, set filter core quantity in filter assemblies
Can also be different, such as less filter core quantity can be set in outer ring, as shown in Figure 2 three, more filter core is then arranged such as in inner ring
Four shown in Fig. 3, filter efficiency and filter cake on inner ring and outer ring filter core can be made to thicken similar rate in this way.
In a preferred embodiment of the invention, radius R > 300mm of reactor body 1, in this way, in order to guarantee filtering effect
Rate, the center of the filter assemblies 21 of two adjacent rings is away from L >=60mm, diameter 15mm >=d >=50mm of filter core 22.To by limited
Filter core complete in reactor body 1 multiphase flow complete high efficiency filter.
The present invention is further illustrated with reference to embodiments.
Embodiment 1
Using the radius R=1000mm of the reactor body 1 of the gas-liquid-solid multiphase flow reactor of interior filter separation method.Filter
Fig. 5 is shown in arrangement of the specification and filter assemblies 21 of core 22 and filter assemblies 21 under the same radial section of reactor.
Wherein, using the arrangement of two circles.First circumference of the center arrangement of each filter assemblies 21 in first lap 31
Meet r1=900mm.Second circumference of the center arrangement of each filter assemblies 21 in the second circle 32 meets r2=700mm.First
In circle 31 and the second circle 32 between adjacent filter assemblies 21 the smallest center away from Lmin=220mm.
Wherein the center of each filter assemblies 21 of first lap and the second circle avoids 0.75R≤rd≤ 0.85R (that is,
The slower region of slurry flow rate 750mm-850mm), in addition the outer edge of the filter assemblies of first lap 31 is on the inside of reactor
The radial distance of wall is rb=45mm meets 0≤rbThe requirement in the higher region of solid holdup that≤40mm needs to avoid.
The pore size filter specification of used filter core 22 is 20 μm, outside diameter d=20mm, length 1.2m.Among filter core 22
Center away from t=60mm, the circumscribed circle diameter D of filter assemblies 21 is 95mm.No matter in this way, the mistake in first lap or the second circle
Component is filtered, except center avoids the slower region of slurry flow rate, whole also all to avoid the slower region of slurries, effect is good.
Since the filter core group quantity of first lap is 12 (more than 6), it is divided into 4 big group, per big group by 3 filter cores
Group is constituted, and every group of upper and lower header is connected on general pipeline up and down, finally connects the filtering blowback pipeline outside reactor.
The filter core group quantity of second circle is 8, (more than 6), therefore is divided into 2 big group, per big group by 4 filter core group structures
At every group of upper and lower header is connected on general pipeline up and down, is connected to outside reactor body 1.
In the present embodiment, reactor is operated under 250-270 DEG C, 3.0MPa, filter according to setting filtering
Parameter and program are filtered operation, and slurries filter capacity can be stablized between 2.5-3.0t/h, and filter capacity is stablized, filtering
Device service life can reach 6000 hours or more.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (14)
1. a kind of gas-liquid-solid multiphase flow reactor, including reactor body (1) and the filter being located in the reactor body (1)
(2), which is characterized in that the filter (2) includes the multiple filter assemblies arranged along the circumferential direction of the reactor in multi-turn
(21), wherein slurry flow rate is avoided compared with the slow and/or higher region of solid holdup in the center of each filter assemblies (21), wherein
The slower region of the slurry flow rate refers to: flow velocity is in the region of 0-10cm/s；The higher region of solid holdup refers to: solid
The region of content concn higher than reactor center solid content concentration 5% or more.
2. gas-liquid-solid multiphase flow reactor according to claim 1, which is characterized in that the slower region of the slurry flow rate
Meet: 0.75R≤rd≤ 0.85R, wherein R is the radius of the reactor body (1), rdIt is arrived for the slower region of slurry flow rate
The radial distance at reactor body (1) center.
3. gas-liquid-solid multiphase flow reactor according to claim 1, which is characterized in that the higher region of solid holdup is full
Foot: 0≤rb≤ 40mm, rbFor the filter assemblies (21) inner sidewall of the outer edge apart from the reactor body (1) it is most short
Radial distance.
4. gas-solid-liquid multiphase flow reactor according to claim 1, which is characterized in that each filter assemblies (21) are whole
Body avoids slurry flow rate compared with the slow and/or higher region of solid holdup.
5. gas-liquid-solid multiphase flow reactor described in any one of -4 according to claim 1, which is characterized in that the multi-turn mistake
Filter component (21) includes positioned at outermost first lap (31) and second circle (32) adjacent with the first lap (31), wherein described
Each filter assemblies (21) are located at the slower areas outside of the slurry flow rate and each filter assemblies in first lap (31)
(21) the higher region of solid holdup is avoided at center, and in second circle (32) each filter assemblies (21) be located at it is described
The slower area inside of slurry flow rate.
6. gas-liquid-solid multiphase flow reactor according to claim 5, which is characterized in that the first lap (31) is arranged in
One circumference, first circumference are located between the slower region of the slurry flow rate and the higher region of the solid holdup, and described
Two circles (32) are arranged in the second circumference, which is located at the slower area inside of the slurry flow rate, and meets:
0.65R<r2< 0.75R, wherein r2For second circumference to the distance at the reactor body (1) center.
7. gas-liquid-solid multiphase flow reactor according to claim 5, which is characterized in that the multi-turn filter assemblies (21) are also
Circumference including the n-th circle, the n-th circle arrangement meets: [0.65-0.1 (n-2)] R < rn<[0.75-0.1 (n-2)] R, wherein n>=
3, wherein rnThe circumference of arrangement is enclosed to the distance at the reactor body (1) center for n-th.
8. gas-liquid-solid multiphase flow reactor according to claim 7, which is characterized in that the circumference of n-th circle meets: rn>
0.2R。
9. gas-liquid-solid multiphase flow reactor according to claim 5, which is characterized in that in parallel in the filter assemblies (21)
There is the filter core (22) of multiple parallel arrangements, the circumscribed circle diameter of the filter assemblies (21) is D, and the diameter of the filter core (22) is
D, the center with adjacent two filter assemblies (21) in circle or in adjacent turn away from for L, and the smallest center away from
Meet Lmin≥D+2d。
10. gas-liquid-solid multiphase flow reactor according to claim 9, which is characterized in that in the filter assemblies (21)
The center of the two neighboring filter core (22) meets t < 0.8D, and 5d >=t >=2.5d away from for t.
11. the method for arranging of filter in a kind of gas-liquid-solid multiphase flow reactor, which is characterized in that the method for arranging includes:
Determine slurry flow rate in reactor body (1) compared with the slow and/or higher region of solid holdup,
Circumferentially it is in circle arrangement by multiple filter assemblies in the filter, and makes the center of each filter assemblies (21)
The slurry flow rate is avoided compared with the higher region arrangement of slow and/or solid holdup.
12. method for arranging according to claim 11, which is characterized in that the slower region of the slurry flow rate meets:
0.75R≤rd≤ 0.85R, wherein R is the radius of the reactor body (1), rdIt is the slower region of slurry flow rate described in
The distance at reactor body (1) center.
13. method for arranging according to claim 11, which is characterized in that the higher region of solid holdup meets: 0≤rb
≤ 40mm, rbFor the filter assemblies inner sidewall of the outer edge apart from the reactor body (1) shortest diameter to distance.
14. method for arranging according to claim 11, which is characterized in that so that each filter assemblies (21) are whole
Slurry flow rate is avoided compared with the slow and/or higher region of solid holdup.
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