CN207342673U - A kind of hydrogenation reactor feed distributor - Google Patents
A kind of hydrogenation reactor feed distributor Download PDFInfo
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- CN207342673U CN207342673U CN201721280242.6U CN201721280242U CN207342673U CN 207342673 U CN207342673 U CN 207342673U CN 201721280242 U CN201721280242 U CN 201721280242U CN 207342673 U CN207342673 U CN 207342673U
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- tedge
- distribution plate
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Abstract
A kind of hydrogenation reactor feed distributor is the utility model is related to, belongs to oil-refining chemical and coal chemical technology.The feed distributor, including feed inlet, charging distribution plate, tedge and tedge bubble-cap, the charging distribution plate are placed in above feed inlet, and each tedge is placed on the through hole of the charging distribution plate, rises the upward reduced diameter of tube passage；The tedge top is raised pipe blister packed, and the tedge upper side is provided with the horizontal cut for leading to bubble-cap, and bubble-cap bottom is provided with outlet.The utility model controls charging rate and flow regime in the reasonable scope, and deposition, coking do not occur for charging, while will not produce erosion to runner again.
Description
Technical field
A kind of hydrogenation reactor feed distributor is the utility model is related to, belongs to oil-refining chemical and coal chemical technology.
Background technology
In recent years, world petroleum resource is increasingly in short supply, and the heaviness of petroleum resources and in poor quality problem are more and more brighter
It is aobvious, but as economic rapid growth, society are growing day by day to the demand of oil product.Heavy Oil Processing Technology can not only have
Effect utilizes petroleum resources, and can improve the economic benefit of oil-processing enterprises, but the decompression residuum of oil plant processing at present
(particularly content of beary metal is high) generally uses delay coking process, its light oil yield is relatively low, and inorganization powder during decoking
Dirt discharge can cause serious environmental pollution, then mink cell focus hydrogen addition technology, especially heavy-oil slurry technology with it in high yield,
Environmentally friendly feature becomes the Heavy Oil Processing Technology favored by people.Based on the few fundamental realities of the country of China's coal heavy wool, DCL/Direct coal liquefaction
Liquefaction and oily coal are smelt the research object for numerous enterprises and R＆D institution altogether.Heavy-oil slurry hydrogenation, DCL/Direct coal liquefaction and oil
It is slurry bed system hydrogenation reactor that coal slurry bed system refines one of core of technology altogether.
Heavy-oil slurry is hydrogenated with and the charging of coal state bed hydroprocessing enters reactor by pipeline, and reactor inside diameter is usual
It is more than 10 times of internal diameter of the pipeline, flow velocity declines suddenly after charging enters reactor, is easily layered and deposits.Heavy constituent is deposited on
Reactor inlet, reactor temperature usually more than 400 DEG C, this part heavy constituent cannot be hydrogenated with time can coking in this,
Reactor is blocked, causes device to stop work.Since reactor feed viscosity is high, solid content is big, it is necessary to charging is maintained at high flow rate
Under state of disturbance, it just can guarantee that charging continuously and stably enters reactiveness.But flow velocity is high, meeting erosion is anti-again by force for perturbation
Device internal structure is answered, or even shakes reactor frame.
Utility model content
To solve the above-mentioned problems, the utility model proposes a kind of hydrogenation reactor feed distributor, according to reactor into
The property of material, designs set of complementary equipment and technological process, solves the problems, such as deposition, blocking and the erosion of reactor feed.
Technical solutions of the utility model are as follows：
A kind of hydrogenation reactor feed distributor, it is characterised in that including feed inlet, charging distribution plate, tedge and rising
Envelope cover, the charging distribution plate are placed in above feed inlet, and each tedge is placed on the through hole of the charging distribution plate,
Rise the upward reduced diameter of tube passage；The tedge top is raised pipe blister packed, the tedge upper side
The horizontal cut for leading to bubble-cap is provided with, bubble-cap bottom is provided with outlet.
The preferable feed inlet includes fresh feed mouth and recycle feed mouth, and feed inlet and distributor angle are 30-
90°。
The pore diameter range of preferable charging distribution plate is 5-50mm.
The preferable charging distribution plate is weldingly connected with tedge, and the charging distribution plate is also welding with reactor wall
It is connected.
The technique effect of the utility model：
The utility model hydrogenation reactor feed distributor is used for coal state bed hydroprocessing technique, residual oil slurry bed hydroprocessing work
Skill and fixed bed hydrogenation technique.Feeding process is that the medium into reactor first enters charging distribution plate through feed inlet；Medium into
Enter to rise after tube passage as the diminution of diameter, flow rate gradually increase, form disturbance and avoid being layered；Medium is in tedge
Top exits into bubble-cap along horizontal hole level, flows downward afterwards, is flowed out in bubble-cap bottom by exporting.Charging rate is
1.5-13m/s.The charging distribution plate flow rates 3-20m/s.Velocity of medium is 5-30m/s in the rising tube passage.
Using the utility model feed distributor when, into reactor medium first through feed inlet enter charging distribution plate
Rising tube passage, be gradually reduced due to rising tube passage, medium gradually increases in this flow rate, form certain disturbance and
Avoid being layered；Tedge top is raised pipe blister packed, and medium flows out on tedge top along the horizontal hole set is horizontal
Into bubble-cap, flow downward, flowed out in bubble-cap bottom by exporting, so far medium covers the whole process of feed distributor afterwards.It is situated between
Reynolds number >=2000 of the matter in distributor, tedge and tedge bubble-cap.The feed distributor of the utility model and its into
Expect that charging dexterously can be sent into reactor very by technique, the flow regime of charging is controlled in rational scope.This is special
It is adapted to residual oil slurry bed system (suspension bed) or boiling bed hydrogenation reactor feed and the charging of coal state bed hydroprocessing, because its charging is viscous
Degree and temperature are higher, easy coking and deposition, and charging can be evenly distributed by the utility model in reactor radial extension, and
Coking and deposition are not produced, erosion is not produced to charging inner member.
The utility model controls charging rate and flow regime in the reasonable scope, and deposition, coking do not occur for charging, together
When again will not to runner produce erosion.The utility model is suitable for fixed bed reactors, boiling bed hydrogenation reactor, slurry bed system
(suspension bed) hydrogenation reactor, be adapted to liquid phase feeding, gas-liquid two-phase feeding and gas-liquid-solid three-phase charging, reactor fresh feed and
Recycle feed can be handled by this feed distributor.
Brief description of the drawings
Fig. 1 is the schematic diagram of the charging distribution plate of the utility model embodiment,
Fig. 2 is the bottom view of single tedge；
Fig. 3 is the schematic diagram of one group of tedge of the utility model embodiment and tedge bubble-cap.
Each label lists as follows in figure：
1- feeds distribution plate, and 2- rises pipe outer wall, and 3- rises inside pipe wall, 4- tedges, 5- tedge feeder connections, on 6-
Riser channel outlet, 7- horizontal cuts, 8- tedge bubble-caps, the outlet of 9- bubble-caps.
Embodiment
For the utility model is expanded on further, will be illustrated in conjunction with the accompanying drawings and embodiments.
Embodiment：
The present embodiment is applied to coal state bed hydroprocessing technique.
1st, feeding process：
(1) as shown in Figs. 1-3, oily coal mixtures enter reactor through feed inlet first, and arrival is arranged in feed inlet
Distribution plate 1 is fed, subsequently into corresponding tedge 4 above each hole on charging distribution plate 1, rises tube passage and goes out greatly for import
Mouthful small structure, outside have tedge bubble-cap 8 to surround, and set 4 tedge horizontal cuts 7 on 4 top of tedge, and medium is from water
Flat nick 7 flows out, and exterior tedge bubble-cap 8 blocks top, and medium is flowed out from the aperture of bubble-cap lower end 4, that is, bubble-cap outlet 9.
(2) reactor band inner circulation structure, recycle feed mouth enter reactor from lower vertical, flow process with it is fresh
Feed identical.The present embodiment reactor shell, feed inlet and inner circulation structure are conventional arrangement, not shown in figure.
2nd, fresh feed mouth and charging distribution plate angle at 45 °, inlet amount 3000m3/ h, charging bore are 500mm；Follow
With distribution plate at an angle of 90, recycle feed amount is 1500m to ring feed inlet3/ h, circulation bore are 500mm；Set on distribution plate
1060 holes, each hole corresponds to a tedge 4, as shown in figure 3,5 a diameter of 40mm of tedge feeder connection, the rising of upper end
Tube passage outlet 6 is 15mm, and 4 horizontal cuts 7 are 10mm, and the bubble-cap outlet 9 of lower end 4 is 8mm.
3rd, fresh feed velocity in pipes is 4.25m/s, Reynolds number 3200；Recycle feed velocity in pipes is 2.12m/s,
Reynolds number is 2800；5 flow velocity of tedge feeder connection is 0.73m/s, Reynolds number 2200；Tedge channel outlet 6 flows
Speed is 6.68m/s, Reynolds number 4000；7 flow velocity of horizontal cut is 3.76m/s, Reynolds number 3100；Lower end bubble-cap outlet
9 flow velocitys are 5.87m/s, Reynolds number 3500.
Device opens inspection after running shut-down in 2 years, without obvious coking and depositional phenomenon.
Above feed distributor is applied to residual oil slurry bed hydroprocessing, DCL/Direct coal liquefaction equally obtains the effect above.
Conclusion：
From above-described embodiment as can be seen that using the utility model reactor, in residual oil slurry bed hydroprocessing, the direct liquid of coal
Change in being kneaded with oily coal, all achieve good effect.
The foregoing is merely the preferable embodiment of the utility model, but the scope of protection of the utility model not office
It is limited to this, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with
Subject to the protection domain of claims.
Claims (4)
1. a kind of hydrogenation reactor feed distributor, it is characterised in that including feed inlet, charging distribution plate, tedge and tedge
Bubble-cap, the charging distribution plate are placed in above feed inlet, and each tedge is placed on the through hole of the charging distribution plate, on
The upward reduced diameter of riser passage；The tedge top is raised pipe blister packed, and the tedge upper side is set
The horizontal cut for leading to bubble-cap is equipped with, bubble-cap bottom is provided with outlet.
2. a kind of hydrogenation reactor feed distributor according to claim 1, it is characterised in that the feed inlet includes new
Fresh feed inlet and recycle feed mouth, feed inlet are 30-90 ° with distributor angle.
3. a kind of hydrogenation reactor feed distributor according to claim 1, it is characterised in that the charging distribution plate
Pore diameter range is 5-50mm.
A kind of 4. hydrogenation reactor feed distributor according to claim 1, it is characterised in that it is described charging distribution plate with
Tedge is weldingly connected, and the charging distribution plate is weldingly connected with reactor wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721280242.6U CN207342673U (en) | 2017-09-30 | 2017-09-30 | A kind of hydrogenation reactor feed distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721280242.6U CN207342673U (en) | 2017-09-30 | 2017-09-30 | A kind of hydrogenation reactor feed distributor |
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| Publication Number | Publication Date |
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| CN207342673U true CN207342673U (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721280242.6U Active CN207342673U (en) | 2017-09-30 | 2017-09-30 | A kind of hydrogenation reactor feed distributor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847658A (en) * | 2019-03-21 | 2019-06-07 | 中国科学院上海高等研究院 | Paste state bed reactor and reaction method |
-
2017
- 2017-09-30 CN CN201721280242.6U patent/CN207342673U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847658A (en) * | 2019-03-21 | 2019-06-07 | 中国科学院上海高等研究院 | Paste state bed reactor and reaction method |
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