CN207605560U - A kind of efficient circulation hydrogen desulfurizing tower - Google Patents
A kind of efficient circulation hydrogen desulfurizing tower Download PDFInfo
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- CN207605560U CN207605560U CN201721667600.9U CN201721667600U CN207605560U CN 207605560 U CN207605560 U CN 207605560U CN 201721667600 U CN201721667600 U CN 201721667600U CN 207605560 U CN207605560 U CN 207605560U
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Abstract
A kind of efficient circulation hydrogen desulfurizing tower of the utility model, main body is tower body, there is tower body gas vent at the top of the tower body, bottom has tower body liquid-phase outlet, tower body lower sidewall has recycle hydrogen gaseous mixture entrance, top has absorbing liquid entrance, it is characterized in that including at least one reinforcing mini cyclone inside the tower body, positioned at tower body top, the reinforcing mini cyclone includes outer tube and inner tube, a part for said inner tube lower part enters the top of outer tube, opening between the outer tube and inner tube is cyclone inlet, the top of said inner tube is cyclone separator gas vent, it is provided with guide vane between said inner tube and the outer tube.Above-mentioned efficient circulation hydrogen desulfurizing tower has the characteristics that efficient, energy saving, long-term operation.It realizes and high-efficiency desulfurization is carried out to the recycle hydrogen in hydrogenation technique, eliminating and running amine phenomenon, drag losses are small.
Description
Technical field
The utility model is related to a kind of efficient circulation hydrogen removing tower, for handle be hydrocracked, catalytic cracking, the dresses such as coking
The desulphurization system of the recycle hydrogen, liquefied petroleum gas set belongs to Petroleum Processing Technology field.
Background technology
In recent years, crude quality and yield are all drastically declining, and sulphur, nitrogen, content of beary metal are exceeded, and people are to light oil
Demand it is more and more, therefore the hydrogenation techniques such as heavy-oil hydrogenation technology, direct coal liquefaction technology and oily coal mixing technology are increasingly
It is taken seriously, these technologies react the hydrocarbon raw materials such as heavy crude, coal under catalyst and high temperature with hydrogen, by mink cell focus
Or coal carries out hydrogenation reaction, obtains light oil.It is required for using high-pressure separation apparatus in these techniques, by reactor outlet
Oil-gas-water three-phase product carries out gas phase and liquid phase separation, and the recycle hydrogen in gas phase recycles, and tail gas enters gas treatment dress
It sets, liquid phase enters fractionating system and is fractionated, and then carries out desulfurization process to the circulating hydrogen separated.
Recycle hydrogen there are problems that carrying amine liquid secretly, on the one hand causes amine liquid to lose, increase operating cost after carrying out desulfurization；
On the other hand seriously affect the quality of gas products, if the gas of entrainment amine liquid into follow-up chemical plant installations, etching apparatus pipe
Road causes secondary pollution, endangers bigger.Conventional gas-liquid knockout drum can not detach, and be typically employed in outside tower and gravity settler is arranged
It controls, but takes up a large area with coalescer, investment is big.
Miniature cyclone separator be it is a kind of efficiently, safety, can long-term operation equipment, U.S. School of
The units such as Mechanical and Materials Engineering of Washington State University design
The mini cyclone of 5mm, 10mm, 15mm, 25mm.Vapour sol particle of the 19mm cyclone separators for 3 μm of biomass
Separative efficiency is up to 95%；80% or more is also reached to the vapour sol particle separative efficiency of 2 μm of biomass.Therefore, if by Miniature
Wind separator is grafted onto hydrocracking recycle hydrogen, liquid hydrocarbon, sour water and low point of gas heterogeneous separation system, is expected to solve to follow
The problems such as entrained liquids, solids problem in ring hydrogen, the consumption of amine liquid is big.
But currently used cyclone separator is all made of the lateral air inlet of single port, there is separative efficiency in use
Low and drag losses problem bigger than normal.Mini cyclone generally comprises outer tube and inner tube, a part for said inner tube lower part
It into the top of outer tube, is tightly connected with outer wall of inner tube at the top of outer tube, is cyclone separator gas vent, outer tube packet at the top of inner tube
Include the straight-tube portion on top and the straight-tube portion of the Taper Pipe part and lower part small diameter at the Taper Pipe part of lower part or middle part, air inlet
The top that mouth is located at the straight-tube portion of outer tube is unilateral.Medium to be separated is needed generally to enter cyclone separator from unilateral side to air inlet
Interior carry out gas-liquid separation, liquid or liquid-solid mixture are exported from outer pipe bottom and are discharged, and gas is discharged at the top of inner tube.Miniature whirlwind
Separator refers to cyclone separator of the diameter on outer tube top at tens-hundreds of millimeters.
Therefore, these problems of the mini cyclone of the prior art have seriously affected its application in desulfurizing tower,
Desulfurizing tower there are low separation efficiency, consumption of materials and floor space are bigger than normal, drag losses are big and continuous operation time is limited
The defects of.
Utility model content
Based on problems of the prior art, the utility model provides a kind of efficient circulation hydrogen desulfurizing tower, due to desulfurization
The axial admission mouth of reinforcing mini cyclone in tower, and with guide vane drainage so that desulfurizing tower separative efficiency height,
Drag losses are smaller, floor space is small, amine liquid race damage is low, low energy consumption.
The technical solution of the utility model：
A kind of efficient circulation hydrogen desulfurizing tower, main body are tower body, at the top of the tower body there is tower body gas vent, bottom to have
Tower body liquid-phase outlet, tower body lower sidewall is with recycle hydrogen gaseous mixture entrance, top with absorbing liquid entrance, it is characterised in that institute
It includes at least one reinforcing mini cyclone to state inside tower body, is located at tower body top, the reinforcing mini cyclone
Including outer tube and inner tube, a part for said inner tube lower part enters the top of outer tube, and the opening between the outer tube and inner tube is
The top of cyclone inlet, said inner tube is cyclone separator gas vent, is arranged between said inner tube and the outer tube
There is guide vane.
The tower body internal upper part has demister partition board, is around tightly connected with tower body inner wall, on the demister partition board
With at least one opening, the lower part of the outer tube passes through the opening to be placed among the demister partition board.
The absorbing liquid entrance is higher than the bottom of the outer tube and below the demister partition board.
One or more layers gas-liquid power board is provided between the absorbing liquid entrance and the recycle hydrogen gaseous mixture entrance.
Every layer of gas-liquid power board includes two block baffles, two block baffles connect with the side wall of the tower body side respectively,
It is interspersed up and down, the baffle is more than half disk-shaped to be adapted to the tower body inner wall.
The gas-liquid power board is disk-shaped to be adapted to tower body inner wall, has several absorbing liquids and circulating hydrogen thereon
Gaseous mixture can by aperture.
Said inner tube is connected with outer tube by the guide vane.
The guide vane is helical wire form.
The guide vane quantity is 3-6, and the guide vane is arranged in the same direction, and circumferential uniform point along outer wall of inner tube
Cloth.
The length that said inner tube enters outer tube is 60mm~150mm.
The technique effect of the utility model：
Reinforcing mini cyclone is used inside a kind of efficient circulation hydrogen desulfurizing tower of the utility model, is used for eddy flow
Separation is entrained with the gaseous mixture of absorbing liquid.It is that the axial direction at the top of outer tube between inner tube is opened to strengthen mini cyclone entrance
Mouthful, it is entirely different to intake method with existing unilateral side so as to form axial admission mode, not only increase effective admission face
Product, is obviously improved intake efficiency, also greatly reduces droop loss.The reinforcing of guide vane of the gaseous mixture between inner and outer pipes is drawn
It flows down, the centrifugal force bigger of rotation, to greatly strengthen the separating effect of cyclone separator, promotes separative efficiency.Gaseous mixture
It is efficiently separated the recycle hydrogen gas being purified from inner tube open top to go out, liquid runs down outer tube lower end flows into desulfurizing tower bottom
Portion.The separative efficiency of efficient circulation hydrogen desulfurizing tower with above-mentioned reinforcing mini cyclone a kind of improves, drag losses compared with
It is small, floor space is small, amine liquid run damage it is low, low energy consumption.
The demister is filtered to remove large-sized drop and solid particle in the recycle hydrogen with purification first.
Absorbing liquid entrance is between recycle hydrogen gaseous mixture entrance and demister partition board so that recycle hydrogen and the suction in tower body
The reaction of liquid counter current contacting is received, allows the two to come into full contact with absorption, removes the sulfide in recycle hydrogen as far as possible.
Gas-liquid power board hinder the recycle hydrogen that enters in tower body from bottom too fast to upper flowing and tower body entered by top
The too fast speed for flowing downward, both slowing down of absorbing liquid, to increase touch opportunity and the time of absorbing liquid and recycle hydrogen,
Countercurrent reaction is more abundant, removes the sulfide in recycle hydrogen as far as possible.
It is connected by guide vane between the outer tube and inner tube, the connection structure between inner and outer pipes is made to be directly becoming water conservancy diversion
Functional component simplifies structure.
The guide vane is helical wire form, can make to enter the medium in separator and form helix stream along guide vane
Flowing mode enhances flow strength, improves medium separative efficiency.
Multiple guide vanes in the same direction are set, the flowing of medium is made to form multiple rotational flows, are formed in guide vane tail portion
Multiple vortex can enhance the flow strength of vortex after multiple eddies, further enhance the separative efficiency of medium.
Preferably, the length that said inner tube enters outer tube is 60mm~150mm, can further reduce resistance.
Description of the drawings
Fig. 1 is a kind of longitudinal sectional view of the internal efficient circulation hydrogen desulfurizing tower for having and strengthening mini cyclone；
Fig. 2 is the longitudinal sectional view of the reinforcing mini cyclone of the utility model embodiment；
Fig. 3 is the vertical view of the reinforcing mini cyclone of the utility model embodiment；
Fig. 4 is the fragmentary three-dimensional view of the reinforcing mini cyclone of the utility model embodiment.
Each label is as follows in figure：
1- inner tubes, 2- outer tubes, 3- guide vanes, 4- air inlets, 5- cyclone separator gas vents, 6- strengthen miniature whirlwind
Separator, 7- efficient circulation hydrogen desulfurizing towers, 8- tower bodies, 9- demister partition boards, 10- gas-liquid power boards, 11- tower body gas vents,
12- absorbing liquid entrances, 13- tower body liquid-phase outlets, 14- recycle hydrogen gaseous mixture entrances.
Specific implementation mode
The utility model is explained in detail with reference to specific embodiments and the drawings 1-4.
The present embodiment is a kind of efficient circulation hydrogen desulfurizing tower, and inside, which has, strengthens mini cyclone, contains for handling
The recycle hydrogen gaseous mixture of sulphur, the amine liquid for removing sulphur-containing substance therein and entrainment are purified circulating hydrogen.
As shown in Figure 1, a kind of efficient circulation hydrogen desulfurizing tower 7, main body is tower body 8.8 lower part side of tower body is mixed with recycle hydrogen
Gas entrance 14 is closed, 8 top of tower body is tower body gas vent 11, the outlet for the decontamination cycle hydrogen after desulfurization, separation.Tower
It is tower body liquid-phase outlet 13, the rich amine for absorbing hydrogen sulfide that 8 top side of body, which has absorbing liquid entrance 12,8 bottom of tower body,
The outlet of liquid.Also have in the tower body 8 and strengthens mini cyclone 6.As Figure 2-3, strengthen mini cyclone 6
Including outer tube 2 and inner tube 1.Said inner tube 1 is straight pipe；Outer tube 2 includes top straight-tube portion, middle part conical section and lower part
Small diameter straight-tube portion.A part for 1 lower part of said inner tube enters the top of outer tube 2.Between the top and inner tube 1 of outer tube 2
Axially open be cyclone separator air inlet 4, the top of inner tube 1 is cyclone separator gas vent 5, is arranged between inner and outer pipes
There is guide vane 3.
The absorbing liquid can be monoethanolamine (MEA) solution, diethanol amine (DEA) solution, diisopropanolamine (DIPA) (DIPA)
Solution or N methyldiethanol amine (MDEA) solution.
Two layers of gas-liquid power board 10 is equipped on side wall between absorbing liquid entrance 12 and recycle hydrogen gaseous mixture entrance 14, often
The layer gas-liquid power board 10 is disk-shaped to be adapted to tower body inner wall, has several apertures, absorbing liquid and gaseous mixture thereon
It can be transferred through the aperture.
Further include demister partition board 9 and otic placode (not shown) inside tower body 8.Demister partition board 9 is located at the top of tower body 8,
It is located higher than absorbing liquid entrance 12, disk-shaped to be adapted to tower body inner wall shape, periphery is fixedly connected with the inner wall of tower body 8.
The otic placode is fixed on 8 inner wall of the tower body.The 2 middle part conical section of outer tube of the idetified separation device 6 pass through demister every
The bottom end of plate 9, lower part small diameter straight-tube portion is fixed on otic placode 14.
As shown in figure 4, the guide vane 3 can be located on 1 outer wall circumference of said inner tube, while passing through between inner and outer pipes
The guide vane 3 connects, and guide vane 3 is also used as attachment device as drainage device, simplifies structure.Specific implementation side
Formula be guide vane 3 be welded on 1 outer wall of inner tube or by thick-walled pipe machine-shaping be the inner tube 1 with guide vane 3, outer tube 2
There are the guide vane placing groove of perforation, inner tube 1 is screwed in the guide plate blade placing groove of outer tube 2 by when installation, in outer tube 2 after screw-in
Outside is welded, and realizes the connection of inner and outer pipes.It is arranged on 2 inner wall of outer tube alternatively, guide vane 3 can also be welded and fixed.
In addition, the connection of other connection structures can also be used between inner and outer pipes and guide vane 3 is only used as guiding device.
Preferably, the guide vane 3 is along the axially extending helical wire form flow deflector of inner tube so that enters inner and outer pipes
Between medium form the helix type of flow, the flow strength of medium is further enhanced.
Preferably, the guide vane 3 is multiple and is circumferentially arranged in the same direction along 1 outer wall of inner tube, axially extending, uniform point
Cloth.The guide vane of the present embodiment is 4, length 7mm, helix constant pitch 200mm, the number of turns 0.25.Arise from inner tube 1 with it is outer
The junction of pipe 2 respectively extends downwardly and does not extend to axially the bottom of inner tube 1 along helix, is convenient for the coupling of multiple vortex
It closes and is formed, so that the medium entered between inner and outer pipes is formed multiple rotational flows along guide vane 3, formed in 3 tail portion of guide vane
Multiple vortex and multiple vortex can form the coupling of flow strength enhancing, further enhance the flow strength of medium to improve
Separative efficiency.
Certainly, the quantity of guide vane 3 can also be other values, and the quantity of preferred guide vane 3 is 3-6.When leading
When the quantity for flowing blade 3 is 3, guide vane 3 length 7mm, helix constant pitch 150mm, the number of turns 0.33.Work as guide vane
When 3 quantity is 5, guide vane 3 length 7mm, helix constant pitch 250mm, the number of turns 0.2.When the quantity of guide vane 3
When being 6, guide vane 3 length 7mm, helix constant pitch 300mm, the number of turns 0.16.In above-mentioned guide vane, water conservancy diversion is maintained
The length of blade 3 is constant, changes its helix constant pitch, alternatively, can be configured as maintaining the numerical value of helix constant pitch
It is constant, change the length of guide vane 3.
The length setting of guide vane 3 can be according to the synthesis of the specific requirement to improving separative efficiency and reduction droop loss
Consider and other values are set, it is preferred that the length of guide vane 3 is 7-10mm.Water conservancy diversion leaf can be made by increasing the length of guide vane
Piece 3 increases the drainage length of gas-solid or gas-solid liquid medium and separative efficiency is made to further enhance, but can increase gas simultaneously
The pressure loss, the high energy consumption of subsequent production.
Preferably, it is 60mm~150mm that said inner tube 1, which enters 2 length of outer tube, the lower part of inner tube 1 in the present embodiment
100mm enters the top of outer tube 2.
Using above-mentioned efficient circulation hydrogen desulfurizing tower 7 to the sulfur-bearing recycle hydrogen gaseous mixture through high-pressure separation apparatus initial gross separation
Desulfurization and separation operation principle is as follows：
Sulfur-bearing recycle hydrogen gaseous mixture from recycle hydrogen gaseous mixture entrance 14 enter tower body 8 in moves upwards, while absorbing liquid from
Absorbing liquid entrance 12, which enters in tower body, to flow downward, and counter current contacting absorption is carried out with sulfur-bearing recycle hydrogen gaseous mixture, by gas-liquid
Speed slows down both at 10 position of power board, and further contact absorbs.Then, the recycle hydrogen for carrying amine liquid after Absorption Desulfurization secretly is mixed
It closes gas to continue up across demister partition board 9, filters out large-sized drop.Drop by gravity settle downwards into
Enter to the bottom of tower body 8；The separator air inlet 4 of gas rising in an axial direction enters to strengthen to be revolved in mini cyclone 6
Flow separation.The recycle hydrogen gaseous mixture for carrying amine liquid secretly is drained by the reinforcing of guide vane 3 and forms strong rotating separation and along outer tube 2
Inner wall rotation is downwardly into 2 middle part of outer tube.Isolated decontamination cycle hydrogen enters in inward eddy along the whirlwind at 1 top of inner tube
Separator gas outlet 4 enters 8 top of tower body, and is finally left through tower body gas vent 11.And the big amine liquid of density is centrifuging
It is thrown toward 2 inner wall of outer tube under force effect, and under the effect of gravity, is quickly flowed out along 2 lower part of outer tube and strengthen mini cyclone
6, it is stored in 8 bottom of tower body, finally separation is completed in 13 outflow from the outlet of tower body liquid.
The separating effect of the present embodiment is as follows：
1, to the removing situation of drop：Separation accuracy to drop is the removal efficiency of 2-10 μm and the above grain size drop>
99%；
2, to the removing situation of solid particle：Separation accuracy to solid particle is 3 μm, 5 μm and the above grain size solid
The removal efficiency of grain is not less than 95%；
3, the drag overall loss of desulfurizing tower is less than 0.01MPa, and pressure drop is small；
4, when strength check meets pressure vessel code, the present embodiment realizes operation steady in a long-term.
It should be pointed out that specific implementation mode described above can make those skilled in the art that this practicality be more completely understood
It is novel, but the utility model is not limited in any way.Therefore, although this specification is new to this practicality with reference to drawings and examples
Type has been carried out detailed description, it will be understood by those skilled in the art, however, that still can modify to the utility model
Or equivalent replacement, and the technical solution of all spirit and scope for not departing from the utility model and its improvement, such as each structure
Fixed form, the quantity of cyclone separator, size, arrangement, the quantity of guide vane and mounting means etc. its should all contain
It covers in the protection domain of the utility model patent.
Claims (10)
1. a kind of efficient circulation hydrogen desulfurizing tower, main body are tower body, with tower body gas vent, bottom with tower at the top of the tower body
Body liquid-phase outlet, tower body lower sidewall is with recycle hydrogen gaseous mixture entrance, top with absorbing liquid entrance, it is characterised in that described
Include at least one reinforcing mini cyclone inside tower body, is located at tower body top, the reinforcing mini cyclone packet
Outer tube and inner tube are included, a part for said inner tube lower part enters the top of outer tube, and the opening between the outer tube and inner tube is rotation
The top of wind separator inlet, said inner tube is cyclone separator gas vent, is provided between said inner tube and the outer tube
Guide vane.
2. a kind of efficient circulation hydrogen desulfurizing tower according to claim 1, it is characterised in that the tower body internal upper part has broken
Foam net partition board is around tightly connected with tower body inner wall, has at least one opening on the demister partition board, under the outer tube
Portion passes through the opening to be placed among the demister partition board.
3. a kind of efficient circulation hydrogen desulfurizing tower according to claim 2, it is characterised in that the absorbing liquid entrance is higher than institute
State the bottom of outer tube and below the demister partition board.
4. a kind of efficient circulation hydrogen desulfurizing tower according to claim 1, it is characterised in that in the absorbing liquid entrance and institute
It states and is provided with one or more layers gas-liquid power board between recycle hydrogen gaseous mixture entrance.
5. a kind of efficient circulation hydrogen desulfurizing tower according to claim 4, it is characterised in that every layer of gas-liquid power board packet
Include two block baffles, two block baffles connect with the side wall of the tower body side, are interspersed up and down respectively, the baffle be with it is described
Tower body inner wall adapts to more than half disk-shaped.
6. a kind of efficient circulation hydrogen desulfurizing tower according to claim 4, it is characterised in that the gas-liquid power board is and tower
Internal wall adapts to disk-shaped, thereon with several absorbing liquids and circulating hydrogen gaseous mixture can by aperture.
7. according to a kind of any efficient circulation hydrogen desulfurizing towers of claim 1-6, it is characterised in that said inner tube and outer tube
It is connected by the guide vane.
8. a kind of efficient circulation hydrogen desulfurizing tower according to one of claim 1-6, it is characterised in that the guide vane is
Helical wire form.
9. a kind of efficient circulation hydrogen desulfurizing tower according to claim 1, it is characterised in that the guide vane quantity is 3-6
A, the guide vane is arranged in the same direction, and is circumferentially uniformly distributed along outer wall of inner tube.
10. a kind of efficient circulation hydrogen desulfurizing tower according to claim 1, it is characterised in that said inner tube enters the length of outer tube
Degree is 60mm~150mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721667600.9U CN207605560U (en) | 2017-12-05 | 2017-12-05 | A kind of efficient circulation hydrogen desulfurizing tower |
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| CN201721667600.9U CN207605560U (en) | 2017-12-05 | 2017-12-05 | A kind of efficient circulation hydrogen desulfurizing tower |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791913A (en) * | 2018-08-17 | 2018-11-13 | 西安航空学院 | A kind of docking mechanism in rigid tanker refuelling system |
| CN113083170A (en) * | 2021-05-13 | 2021-07-09 | 华东理工大学 | Fluidized bed hydrogenation reactor and using method thereof |
| CN113117905A (en) * | 2021-03-04 | 2021-07-16 | 中国石油大学(华东) | Decoking device and method of cyclone separator for decoking of top gas of coking tower |
-
2017
- 2017-12-05 CN CN201721667600.9U patent/CN207605560U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791913A (en) * | 2018-08-17 | 2018-11-13 | 西安航空学院 | A kind of docking mechanism in rigid tanker refuelling system |
| CN113117905A (en) * | 2021-03-04 | 2021-07-16 | 中国石油大学(华东) | Decoking device and method of cyclone separator for decoking of top gas of coking tower |
| CN113083170A (en) * | 2021-05-13 | 2021-07-09 | 华东理工大学 | Fluidized bed hydrogenation reactor and using method thereof |
| CN113083170B (en) * | 2021-05-13 | 2022-07-15 | 华东理工大学 | Fluidized bed hydrogenation reactor and using method thereof |
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