CN205473602U - Catalytic cracking unit - Google Patents
Catalytic cracking unit Download PDFInfo
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- CN205473602U CN205473602U CN201620085466.0U CN201620085466U CN205473602U CN 205473602 U CN205473602 U CN 205473602U CN 201620085466 U CN201620085466 U CN 201620085466U CN 205473602 U CN205473602 U CN 205473602U
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- catalytic cracking
- cracking unit
- entrance
- catalyst
- regenerator
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Abstract
The utility model discloses a catalytic cracking unit belongs to the petroleum processing field. Catalytic cracking unit includes: settler, regenerator and get the calorimeter outward, the regenerator is connected with and singes the jar, the settler is through the living entry linkage of treating on waiting to give birth to the pipe chute and singeing the jar, get the entry of calorimeter outward and be connected with the regenerator, the export of getting the calorimeter outward with burn the cryogen entry linkage on the jar, circulating inlet, wait to give birth to the entry and be arranged in the not co -altitude that burns the jar with the cryogen entry. The utility model discloses a to burn circulating inlet on the jar, wait to give birth to entry and cryogen entry and set up at the not co -altitude that burns jar, and make the various catalyst that burn in the jar can follow different high entering and burn the jar, and solve to burn in the correlation technique jar and let in the multiple catalyst that is in different states through waiting to give birth to entry, circulating inlet and cryogen entry, the lower problem of mixed effect between the catalyst. Reached can be abundant between the multiple catalyst the mixture, improve catalytic cracking unit's work efficiency's effect.
Description
Technical field
This utility model relates to PETROLEUM PROCESSING field, particularly to a kind of catalytic cracking unit.
Background technology
Catalytic cracking refers to make oil generation cracking anti-by catalytic cracking unit under the effect of heat and catalyst
Should, it is changed into the process of cracked gas, gasoline and diesel oil etc..Catalytic cracking is the main side of oil secondary operations
One of method.
Having a kind of catalytic cracking unit in correlation technique, this catalytic cracking unit includes settler, regenerator
And external warmer, regenerator connects burning tank, and the thermocatalyst in two close phases of regenerator bottom is through regeneration
Inclined tube enter bottom settler with settler bottom oil gas (vaporous oil) hybrid reaction that sprays into, oil afterwards
Gas rises with the catalyst riser in settler jointly, and the oil gas after reacting with thermocatalyst is through sedimentation
The gas outlet of device flows to other device, and thermocatalyst reacted with oil gas is treated through the stripping section entrance of settler
Raw inclined tube, then entered in burning tank by entrance to be generated by inclined tube to be generated；Two close phases and the circulation on burning tank
Connecting between entrance and have outer circulating tube, thermocatalyst can enter burning tank, two close phases by this outer circulating tube
Being connected with the entrance of external warmer, the outlet of external warmer is connected with the cryogen entrance on burning tank, two close phases
In thermocatalyst through external warmer cool down after can enter burning tank.Wherein, the entrance to be generated on burning tank,
Loop head is identical with cryogen entrance height.
During realizing this utility model, inventor finds that prior art at least there is problems in that burning
Burnt tank is passed through the multiple catalyst being in different conditions by entrance to be generated, loop head and cryogen entrance, urges
Mixed effect between agent is relatively low.
Utility model content
It is passed through multiple in order to solve burning tank in prior art by entrance to be generated, loop head and cryogen entrance
Being in the catalyst of different conditions, the problem that mixed effect between catalyst is relatively low, this utility model is implemented
Example provides a kind of catalytic cracking unit.Described technical scheme is as follows:
According to first aspect of the present utility model, it is provided that a kind of catalytic cracking unit, described device includes:
Settler, regenerator and external warmer；
Described regenerator connects burning tank, and described regenerator passes through outer circulating tube and following on described burning tank
Ring entrance connects；
Described settler is connected with the entrance to be generated on described burning tank by inclined tube to be generated；
The entrance of described external warmer is connected with described regenerator, and the outlet of described external warmer is burnt with described
Cryogen entrance on tank connects, and described loop head, described entrance to be generated and described cryogen entrance are positioned at described
Differing heights in burning tank.
Alternatively, in described burning tank, described loop head, described entrance to be generated and described cryogen entrance
In at least one be provided with catalyst distributor.
Alternatively, it is provided with catalyst redistribution device in described burning tank.
Alternatively, the board-like distributor of main air it is provided with bottom described burning tank.
Alternatively, described settler includes riser, bottom described riser with described regenerator sloped tube even
Connect,
Being provided with cold and hot catalyst blender bottom described riser, described cold and hot catalyst blender is with described
The outlet of external warmer connects；
Or,
Pre-lift commutator it is provided with bottom described riser.
Alternatively, described settler is provided with stripping section, described stripping section is provided with grid packing, institute
State grid packing and tilt staggered in described stripping section.
Alternatively, described settler is provided with thick cyclone separator and top cyclone separator, described thick whirlwind
The air inlet of separator is connected with described riser top, the gas outlet of described thick cyclone separator and described top
The air inlet of cyclone separator is directly connected to by Oil/Gas Pipe, and the gas outlet of described top cyclone separator is with described
The gas outlet of settler connects.
Alternatively, described Oil/Gas Pipe is circumscribed with gas-liquid equilibrium device.
Alternatively, described regenerator bottoms is provided with stagewise main air distributor.
Alternatively, described regenerator overhead is provided with radial-flow type three-stage cyclone separator and at least two two grades rotation
Wind separator, the gas outlet of described at least two secondary cyclone connects with described three-stage cyclone separator
And at described three-stage cyclone separator exterior periphery array arrangement.
The technical scheme that this utility model embodiment provides has the benefit that
By by different from what cryogen entrance was arranged in burning tank to the loop head on burning tank, entrance to be generated
Highly, enable the various catalyst in burning tank to enter burning tank from different height, solve relevant skill
In art, burning tank is passed through the multiple catalysis being in different conditions by entrance to be generated, loop head and cryogen entrance
Agent, the problem that mixed effect between catalyst is relatively low.Reach can sufficiently mix between multiple catalysts
Close, improve the effect of the work efficiency of catalytic cracking unit.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, embodiment will be described below
The accompanying drawing used required in is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of utility model, for those of ordinary skill in the art, are not paying creative work
On the premise of, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of catalytic cracking unit shown in this utility model embodiment；
Fig. 2-1 is the structural representation of the another kind of catalytic cracking unit shown in this utility model embodiment；
Fig. 2-2 is the structural representation of the another kind of catalytic cracking unit shown in this utility model embodiment；
Fig. 2-3 is the plan structure schematic diagram of the catalytic cracking unit shown in Fig. 2-1；
Fig. 2-4 is the structural representation of the another kind of catalytic cracking unit shown in this utility model embodiment.
By above-mentioned accompanying drawing, it has been shown that the embodiment that this utility model is clear and definite, hereinafter will have and retouch in more detail
State.These accompanying drawings and word describe the scope being not intended to be limited this utility model design by any mode,
But be that those skilled in the art illustrate concept of the present utility model by reference specific embodiment.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing to this
Utility model embodiment is described in further detail.
Fig. 1 is the structural representation of a kind of catalytic cracking unit shown in this utility model embodiment.This catalysis
Cracking unit may include that
Settler 11, regenerator 12 and external warmer 13.
Regenerator 12 connects burning tank 122, and regenerator 12 is by outer circulating tube A and burning tank 122
Loop head x connect.
Settler 11 is connected with the entrance y to be generated on burning tank 122 by inclined tube B to be generated.
The entrance q1 of external warmer 13 is connected with regenerator 12, the outlet q2 of external warmer 13 and burning tank
Cryogen entrance z on 122 connects, and loop head x, entrance y to be generated and cryogen entrance z are positioned at burning tank 122
Differing heights.
In sum, the catalytic cracking unit that this utility model embodiment provides, by by following on burning tank
The differing heights that ring entrance, entrance to be generated and cryogen entrance are arranged in burning tank, make in burning tank is various
Catalyst can enter burning tank from different height, solve in correlation technique burning tank by entrance to be generated,
Loop head and cryogen entrance are passed through the multiple catalyst being in different conditions, the mixed effect between catalyst
Relatively low problem.Reach can sufficiently mix between multiple catalysts, improved the work of catalytic cracking unit
Make the effect of efficiency.
Further, refer to Fig. 2-1, the another kind of catalysis that it illustrates this utility model embodiment provides is split
The structural representation of gasifying device, this catalytic cracking unit increases on the basis of the catalytic cracking unit shown in Fig. 1
Preferred parts are added, so that the catalytic cracking unit that this utility model embodiment provides has more preferably
Performance.
Alternatively, in burning tank 122, in loop head x, entrance y to be generated and cryogen entrance z at least
One is provided with catalyst distributor 122a.Optionally, due to loop head x, entrance y to be generated and cryogen
Entrance z is positioned at different height in burning tank, thus loop head x, entrance y to be generated and cryogen entrance z
Catalyst distributor 122a, catalyst distributor 122a can be provided with and can improve various urging to greatest extent
In agent radial distribution uniformity in regenerator and burning tank, the regulation and control of catalyst temperature, are more easy to simultaneously
In maintaining burning tank close phase reserve, create preferable initial condition for burning process.
It should be noted that loop head x, entrance y to be generated and cryogen entrance z are arranged on burning tank 122
Differing heights, reached the effect burnt of strengthening, the catalytic cracking that i.e. this utility model embodiment is provided
Device have employed strengthening and burns technology to reduce regeneration temperature, and to greatest extent guard catalyst activity, recover
Catalyst activity.
Alternatively, catalyst redistribution device 122b, this catalyst reallocation dress it are provided with in burning tank 122
Put 122b and can arrange 1 to 10 layer.This catalyst redistribution device 122b can make catalyst with air more
Uniform contact, makes coke and oxygen that combustion reaction stably to occur.Additionally, this catalyst redistribution device can
So that coke and oxygen stably occur combustion reaction in bed, thus can effectively control the combustion of regenerator dilute phase tail
The generation of phenomenon.
Alternatively, main air board-like distributor 122c it is provided with bottom burning tank 122.Main air board-like distributor 122c
Oxygen radial distribution uniformity in regenerator can be improved, create preferable initial condition for burning process.
Alternatively, settler 11 includes riser 111, bottom riser 111 with regenerator sloped tube C even
Connect, be provided with bottom riser 111 cold and hot catalyst blender 111a, cold and hot catalyst blender 111a with
The outlet q2 of external warmer 13 connects, and in Figure 2-1, can be provided with at the outlet q2 of external warmer 13
Opening k1, cold and hot catalyst blender 111a can be provided with opening k2, opening k1 and opening k2 and can connect
Logical.When the catalytic cracking unit that this utility model embodiment provides runs, cold catalyst is from external warmer 13
Entering cold and hot catalyst blender 111a, the thermocatalyst two close phases bottom regenerator 12 enter cold and hot catalysis
Agent blender 111a.
It should be noted that can be feed vaporization section above cold and hot catalyst blender 111a, cold and hot catalysis
Agent blender 111a can effectively reduce feed vaporization section temperature, thus reduces heat cracking reaction ratio, and then
Reduce dry gas and coke yield.
Further, it is also possible to as shown in Fig. 2-2, for the catalytic cracking dress provided by this utility model embodiment
Put, if regeneration temperature has already decreased to meet reduction response system feed vaporization section temperature, riser
Bottom can directly arrange pre-lift commutator 111b, enters the catalyst from the close phase of two bottom regenerator 12
High efficiency rectification while row lifting, by improving feed vaporization section oil preparation contacting efficiency, can reduce thermal cracking
Reaction ratio, and then reduce dry gas and coke yield.In Fig. 2-2, the implication of other label is referred to Fig. 2-1.
In Figure 2-1, settler 11 is provided with stripping section 112, stripping section 112 is provided with grid and fills out
Material 112a, grid packing 112a tilt staggered in stripping section, and grid packing 112a is with strip list
Unit's body combines through certain rule, has various structures form.Tilting staggered grid packing can
To improve stripping section capacity utilization, increase and be attached on catalyst after coke and oil product while the response time
Strengthening oil gas displacement efficiency, thus reduce coke hydrogen content.
Alternatively, settler 11 is provided with thick cyclone separator 113 and top cyclone separator 114, slightly revolves
The air inlet of wind separator 113 is connected with riser 111 top, the gas outlet of thick cyclone separator 113 and top
The air inlet of cyclone separator 114 is connected by Oil/Gas Pipe g, and the gas outlet of top cyclone separator 114 is with heavy
The gas outlet k3 of fall device 11 connects.This design prevents the oil gas in riser and enter the chamber of settler
In, reduce dry gas and coke yield further.
Alternatively, Oil/Gas Pipe g is circumscribed with gas-liquid equilibrium device g1.
Alternatively, regenerator 12 top is provided with radial-flow type three-stage cyclone separator 125 and at least two two grades
Cyclone separator 126, the gas outlet of at least two secondary cyclone 126 and three-stage cyclone separator 125
Connect and at three-stage cyclone separator 125 exterior periphery array arrangement.
Alternatively, the regenerator 12 in the catalytic cracking unit that this utility model embodiment provides is realizing completely
On the premise of regeneration, two bottom regenerator 12 are close without being further continued for burning, and can function only as catalyst stream
Change pans to use, therefore, bottom regenerator 12, be provided with stagewise main air distributor 123.Such as Fig. 2-3
Shown in, it is the birds-eye perspective at stagewise main air distributor 123, and wherein, circulating catalyst exports
X1, regenerated catalyst outlet y1 and outside heat removing catalyst outlet z1 are positioned on regenerator, and 124 is at the bottom of regenerator
The two close phases in portion, circulating catalyst outlet x1 connects with outer circulating tube, regenerated catalyst outlet y1 and again
Raw inclined tube connection, outside heat removing catalyst outlet z1 connects with external warmer.Stagewise main air distributor 123 exists
While maintaining two close phase stabilization fluid states bottom regenerator 12, for improving regenerated catalyst two-phase transportation
Stability creates conditions；This two close phase structure make flue gas without two dense-phase bed, such that it is able to drop further
Low flue gas system pressure drop.
It should be noted that in Figure 2-1, the thermocatalyst that outer circulating tube A returns enters on the upper strata of bed
Entering burning tank, the reclaimable catalyst that inclined tube B to be generated returns enters burning tank 122, treatment with external measures in the intermediate layer of bed
The cold catalyst that heat 13 returns enters burning tank 122 in the lower floor of bed, for improving the regeneration of several catalyst
In device, radially distributing homogeneity provides condition.
As in Figure 2-4, the thermocatalytic that the reclaimable catalyst of inclined tube B to be generated return, outer circulating tube A return
The cold catalyst that agent and external warmer 13 return enters in burning tank 122 in differing heights layering, outer circulating tube
The thermocatalyst that A returns enters burning tank 122 in the lower floor of bed, the reclaimable catalyst that inclined tube B to be generated returns
Enter burning tank 122 in the intermediate layer of bed, the cold catalyst that outside heat removing 13 returns enters on the upper strata of bed
Burning tank 122, provides condition for radial direction distributing homogeneity in the regenerator of several catalyst of raising.
It should be noted that the catalytic cracking unit that this utility model embodiment provides is internal without consumable accessory, have
Help make catalytic cracking unit safety, macrocyclic operation.
It should be noted that this utility model embodiment provide catalytic cracking unit in regenerator and settler
Can be to arrange with high block form, regenerator can be the fast bed single hop highly efficient regeneration close phase structure that adds two, adopts
Burn technology with strengthening thus reduce regeneration temperature, improve catalyst towards heavy vanadium metal and hydrothermal condition etc.
Toleration, for the activity of guard catalyst to greatest extent and recover catalyst activity and create conditions.
It should be added that, the catalytic cracking unit that this utility model embodiment provides, by circulation
On entrance, entrance to be generated and cryogen entrance, catalyst distributor is set, has reached the various catalyst of raising again
Give birth to the regulation and control of catalyst temperature in the radial distribution uniformity in device and burning tank, be easier to maintain burn simultaneously
Burnt tank close phase reserve, creates the effect of preferable initial condition for burning process.
It should be added that, the catalytic cracking unit that this utility model embodiment provides, by burning
Tank arranges catalyst redistribution device, has reached to make various catalyst evenly contact with air, made coke
The effect of combustion reaction is stably there is with oxygen.
It should be added that, the catalytic cracking unit that this utility model embodiment provides, by promoting
Cold and hot catalyst blender is set bottom pipe, has reached to be regulated by the cold catalyst in external warmer
The effect of temperature when catalyst and air-fuel mixture.
It should be added that, the catalytic cracking unit that this utility model embodiment provides, by stripping
Arranging the staggered grid packing of inclination in Duan, reached raising stripping section capacity utilization, increase is attached to
Strengthening oil gas displacement efficiency on catalyst after coke and oil product while response time, the final coke hydrogen that reduces contains
The effect of amount.
It should be added that, the catalytic cracking unit that this utility model embodiment provides, by will slightly revolve
The air inlet of wind separator is directly connected to by Oil/Gas Pipe with riser top, it is to avoid the oil gas in riser
Enter in the chamber of settler.
It should be added that, the catalytic cracking unit that this utility model embodiment provides, by burning
Pot bottom is provided with the board-like distributor of main air.Reach to improve oxygen radial distribution uniformity in regenerator,
The effect of preferable initial condition is created for burning process.
It should be added that, the catalytic cracking unit that this utility model embodiment provides, by regeneration
Device top arranges radial-flow type three-stage cyclone separator and at least two secondary cyclone, improves flue gas and enters
Enter the original allocation uniformity of three-stage cyclone separator, reach the effect of the efficiency improving three-stage cyclone separator
Really, reduce the effect of the pressure drop of three-stage cyclone separator simultaneously.
In sum, the catalytic cracking unit that this utility model embodiment provides, by by following on burning tank
Ring entrance, entrance to be generated and cryogen entrance are arranged on the differing heights of burning tank, and make in burning tank various urges
Agent can enter burning tank from different height, solve in correlation technique burning tank by entrance to be generated,
Loop head and cryogen entrance are passed through the multiple catalyst being in different conditions, the mixed effect between catalyst
Relatively low problem.Reach can sufficiently mix between multiple catalysts, improved the work of catalytic cracking unit
Make the effect of efficiency.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all should wrap
Within being contained in protection domain of the present utility model.
Claims (10)
1. a catalytic cracking unit, it is characterised in that described catalytic cracking unit includes:
Settler, regenerator and external warmer；
Described regenerator connects burning tank, and described regenerator passes through outer circulating tube and following on described burning tank
Ring entrance connects；
Described settler is connected with the entrance to be generated on described burning tank by inclined tube to be generated；
The entrance of described external warmer is connected with described regenerator, and the outlet of described external warmer is burnt with described
Cryogen entrance on tank connects, and described loop head, described entrance to be generated and described cryogen entrance are positioned at described
Differing heights in burning tank.
Catalytic cracking unit the most according to claim 1, it is characterised in that in described burning tank,
Described loop head, described entrance to be generated are provided with catalyst distribution with at least one in described cryogen entrance
Device.
Catalytic cracking unit the most according to claim 1, it is characterised in that arrange in described burning tank
There is catalyst redistribution device.
Catalytic cracking unit the most according to claim 1, it is characterised in that set bottom described burning tank
It is equipped with the board-like distributor of main air.
Catalytic cracking unit the most according to claim 1, it is characterised in that comprise in described settler
There is riser, be connected with described regenerator sloped tube bottom described riser,
Being provided with cold and hot catalyst blender bottom described riser, described cold and hot catalyst blender is with described
The outlet of external warmer connects；
Or,
Pre-lift commutator it is provided with bottom described riser.
Catalytic cracking unit the most according to claim 1, it is characterised in that arrange in described settler
Having stripping section, be provided with grid packing in described stripping section, described grid packing tilts in described stripping section
Staggered.
Catalytic cracking unit the most according to claim 5, it is characterised in that arrange in described settler
There are thick cyclone separator and top cyclone separator, the air inlet of described thick cyclone separator and described riser top
Portion connects, and the air inlet of the gas outlet of described thick cyclone separator and described top cyclone separator passes through Oil/Gas Pipe
Being directly connected to, the gas outlet of described top cyclone separator is connected with the gas outlet of described settler.
Catalytic cracking unit the most according to claim 7, it is characterised in that external on described Oil/Gas Pipe
There is gas-liquid equilibrium device.
Catalytic cracking unit the most according to claim 1, it is characterised in that described regenerator bottoms sets
It is equipped with stagewise main air distributor.
10. according to the arbitrary described catalytic cracking unit of claim 1 to 9, it is characterised in that described again
Raw device top is provided with radial-flow type three-stage cyclone separator and at least two secondary cyclone, described at least
The gas outlet of two secondary cyclones connects with described three-stage cyclone separator and divides at described three grades of whirlwind
From device exterior periphery array arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620085466.0U CN205473602U (en) | 2016-01-28 | 2016-01-28 | Catalytic cracking unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620085466.0U CN205473602U (en) | 2016-01-28 | 2016-01-28 | Catalytic cracking unit |
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| Publication Number | Publication Date |
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| CN205473602U true CN205473602U (en) | 2016-08-17 |
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| CN201620085466.0U Active CN205473602U (en) | 2016-01-28 | 2016-01-28 | Catalytic cracking unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107011940A (en) * | 2016-01-28 | 2017-08-04 | 中国石油天然气集团公司 | Catalytic cracking unit |
-
2016
- 2016-01-28 CN CN201620085466.0U patent/CN205473602U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107011940A (en) * | 2016-01-28 | 2017-08-04 | 中国石油天然气集团公司 | Catalytic cracking unit |
| CN107011940B (en) * | 2016-01-28 | 2019-03-15 | 中国石油天然气集团公司 | Catalytic cracking unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Petroleum Engineering & Construction Corp. Patentee before: China National Petroleum Corp. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190605 Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNPC EAST CHINA DESIGN INSTITUTE CO.,LTD. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Patentee before: CHINA NATIONAL PETROLEUM Corp. |
|
| TR01 | Transfer of patent right |