CN208591818U - A kind of slurry-bed hydrocracking device - Google Patents
A kind of slurry-bed hydrocracking device Download PDFInfo
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- CN208591818U CN208591818U CN201820975983.4U CN201820975983U CN208591818U CN 208591818 U CN208591818 U CN 208591818U CN 201820975983 U CN201820975983 U CN 201820975983U CN 208591818 U CN208591818 U CN 208591818U
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- mixer
- bed
- floating bed
- hydrogenation reactor
- shell
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model relates to a kind of slurry-bed hydrocracking devices, including floating bed hydrogenation reactor shell and material mixer；Pre- hot hydrogen, preheating material, which enter, is mixed into foam-like mixture in material mixer, after being mixed with the solvent naphtha that the gap bottom of material mixer is passed through on material mixer top with floating bed hydrogenation reactor shell, hydrocracking reaction occurs into reaction bed, reaction product is expelled to product processing device by reactor head.The utility model reduces the temperature of air and liquid mixer by being passed through solvent naphtha in suspended-bed reactor bottom, ensure that air and liquid mixer normal table works, " dead zone " between mixer and floating bed hydrogenation reactor shell is eliminated simultaneously, reduce reactor bottom solid precipitation possibility, enhancing mass and heat transfer process improves hydrocracking reaction efficiency.
Description
Technical field
The utility model relates to hydrocracking reaction device more particularly to a kind of floating bed hydrocrackings with mixer
Reaction unit.
Background technique
Floating bed hydrocracking technology is the important process of heavy oil lighting and clean coal utilization.Currently, suspension bed adds
Hydrogen cracker mostly uses inner member to increase the disturbance of logistics in reactor, and then enhances the mass-and heat-transfer between material,
Improve hydrocracking reaction efficiency.
CN102451650A discloses a kind of floating bed hydrogenation reactor.The reactor includes cylinder, truncated cone diffusion
The inner circulation zone that section and guide frame form and the cylinder reactor shell perpendicular to ground, to enhance fluid in reactor
Inside circulation, enhance the mass-and heat-transfer of fluid.
CN02132115 discloses a kind of catalytic reactor coupled with air and liquid mixer, air and liquid mixer make reaction gas and
Reaction solution carries out initial mixing, forms foam-like mixture, weakens the diffusional resistance of hydrogen, enhance the mass transport process of logistics, mention
High reaction rate.
Given mixer is difficult to adapt to the hot environment of slurry-bed hydrocracking, and mixer work energy consumption is high,
It is also easy to produce heat, if heat dissipation is not in time, will affect equipment normal use；Inner member type hydrocracking reactor easily forms dead zone,
Lead to inside reactor coking；Catalyst, unreacted coal and grey branch are deposited on the bottom of suspended-bed reactor, are unfavorable for passing
Matter heat transfer, influences the long-period stable operation of reaction.
Summary of the invention
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of slurry-bed hydrocracking
Device.
In order to achieve the above objectives, the technical solution adopted in the utility model is: offering reacting product outlet including upper end
Floating bed hydrogenation reactor shell and be mounted on floating bed hydrogenation reactor shell bottom and with floating bed hydrogenation reactor enclosure
There are the material mixers in gap between body, and floating bed hydrogenation reactor shell bottom offers respectively and material mixer
The gas-phase feed mouth preheating hydrogen inlet being connected, the preheating material that is connected with the liquid phase feeding mouth of material mixer enters
The solvent oil-in that mouth, the gap bottom between floating bed hydrogenation reactor shell and material mixer are connected, suspension bed
The multiple cold hydrogen entrances being connected with cold hydrogen tube road are also provided in hydrogenator housing sidewall.
Multiple cold hydrogen entrances are provided with from top to bottom on floating bed hydrogenation reactor enclosure body sidewall, and in each cold hydrogen
The flow control valve of control suspended-bed reactor internal temperature is installed on the pipeline of entrance.
The floating bed hydrogenation reactor shell uses up flow type plug flow suspended-bed reactor.
The material mixer is accurate jetting type mixer.
Compared with prior art, the utility model has the following beneficial effects:
Cold solvent oil is passed through the slurry-bed hydrocracking device bottom with material mixer by the utility model, cooling
Air and liquid mixer, while the temperature of charge on air and liquid mixer top is reduced, it avoids air and liquid mixer temperature excessively high, guarantees that gas-liquid is mixed
The work of clutch normal table.The flowing of reactor bottom fluid is strengthened simultaneously, is eliminated between material mixer and reactor shell
" dead zone ", avoid generating coking phenomenon, while solvent naphtha is flowed from bottom to top by reactor bottom, and it is solid to reduce reactor bottom
Phase electrodeposition substance possibility.
Cold solvent oil used in the utility model can gasify heat absorption at high temperature, when " temperature runaway " occurs for suspension bed reaction bed
When, reaction bed temperature is reduced rapidly by increasing cold solvent oil inlet amount, solves lacking for cold hydrogen fast cooling scarce capacity
Point.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Wherein: 1- preheats hydrogen inlet；2- preheating material entrance；3- solvent oil-in；The cold hydrogen entrance of 4-；5- reaction product
Outlet；6- material mixer；7- floating bed hydrogenation reactor shell.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
Referring to Fig. 1, the utility model includes the use up flow type plug flow suspension bed that upper end offers reacting product outlet 5
The floating bed hydrogenation reactor shell 7 of reactor and be mounted on 7 bottom of floating bed hydrogenation reactor shell and and floating bed hydrogenation
There are the accurate jetting type material mixer 6 in gap, 7 bottoms of floating bed hydrogenation reactor shell between reactor shell 7
The preheating hydrogen inlet 1 being connected with the gas-phase feed mouth of material mixer 6, the liquid phase with material mixer 6 are offered respectively
Gap bottom between the feed inlet preheating material entrance 2 being connected and floating bed hydrogenation reactor shell 7 and material mixer 6
The solvent oil-in 3 that portion is connected, 7 side wall of floating bed hydrogenation reactor shell offer multiple with cold hydrogen tube road phase from top to bottom
The cold hydrogen entrance 4 of connection, and the flow tune for controlling suspended-bed reactor internal temperature is installed on the pipeline of each cold hydrogen entrance 4
Save valve.
The course of work of the utility model is as follows:
Pre- hot hydrogen, preheating material distinguish preheated hydrogen inlet 1 and preheating material entrance 2 enters in air and liquid mixer 6
It is mixed to form foam-like mixture, foam-like mixture enters reaction bed and carries out hydrocracking reaction, the reaction product of generation
It is discharged by reacting product outlet 5；Solvent naphtha passes through the sky between suspended-bed reactor and material mixer through solvent oil-in 3
Gap bottom enters device, flow to material mixer top from bottom to top and foam-like mixture is mixed into reaction bed；Cold hydrogen
It is passed through each section of suspended-bed reactor through cold hydrogen entrance 4, control suspended-bed reactor internal temperature is adjusted by flow.
When the utility model is directed to the slurry-bed hydrocracking device progress hydrocracking reaction with mixer, Yi Fa
The disadvantages of angry liquid mixer operating temperature is excessively high, and reactor bottom is also easy to produce in " dead zone ", and solid precipitation occurs, by outstanding
Floating bed reactor bottom is passed through solvent naphtha to reduce the temperature of air and liquid mixer, it is ensured that the work of air and liquid mixer normal table, together
When eliminate " dead zone " between mixer and floating bed hydrogenation reactor shell, reduce reactor bottom solid precipitation possibility,
Enhancing mass and heat transfer process improves hydrocracking reaction efficiency.
Claims (4)
1. a kind of slurry-bed hydrocracking device, which is characterized in that offer the outstanding of reacting product outlet (5) including upper end
Floating bed hydrogenator shell (7) and be mounted on floating bed hydrogenation reactor shell (7) bottom and with floating bed hydrogenation reactor
There are the material mixer in gap (6) between shell (7), floating bed hydrogenation reactor shell (7) bottom offers respectively
Preheating hydrogen inlet (1), the liquid phase feeding with material mixer (6) being connected with the gas-phase feed mouth of material mixer (6)
Gap between the mouth preheating material entrance (2) being connected and floating bed hydrogenation reactor shell (7) and material mixer (6)
The solvent oil-in (3) that bottom is connected is also provided on floating bed hydrogenation reactor shell (7) side wall and is connected with cold hydrogen tube road
Logical multiple cold hydrogen entrances (4).
2. slurry-bed hydrocracking device according to claim 1, which is characterized in that multiple cold hydrogen entrances
(4) it is provided on floating bed hydrogenation reactor shell (7) side wall, and is installed on the pipeline of each cold hydrogen entrance (4) from top to bottom
There is the flow control valve of control suspended-bed reactor internal temperature.
3. slurry-bed hydrocracking device according to claim 1, which is characterized in that the floating bed hydrogenation is anti-
Answer device shell (7) using up flow type plug flow suspended-bed reactor.
4. slurry-bed hydrocracking device according to claim 1, which is characterized in that the material mixer
It (6) is accurate jetting type mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820975983.4U CN208591818U (en) | 2018-06-25 | 2018-06-25 | A kind of slurry-bed hydrocracking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820975983.4U CN208591818U (en) | 2018-06-25 | 2018-06-25 | A kind of slurry-bed hydrocracking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208591818U true CN208591818U (en) | 2019-03-12 |
Family
ID=65601782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820975983.4U Active CN208591818U (en) | 2018-06-25 | 2018-06-25 | A kind of slurry-bed hydrocracking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208591818U (en) |
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2018
- 2018-06-25 CN CN201820975983.4U patent/CN208591818U/en active Active
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