CN205974402U - Base oil is fractionating system in advance - Google Patents
Base oil is fractionating system in advance Download PDFInfo
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- CN205974402U CN205974402U CN201620695015.9U CN201620695015U CN205974402U CN 205974402 U CN205974402 U CN 205974402U CN 201620695015 U CN201620695015 U CN 201620695015U CN 205974402 U CN205974402 U CN 205974402U
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- tower
- stripper
- discharge pipe
- base oil
- phase outlet
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Abstract
The utility model discloses a base oil is fractionating system in advance, including the strip tower, the strip tower includes feed inlet pipeline and stripping steam pipeline, strip top of the tower portion is connected with strip top reflux jar, strip top reflux tank deck portion and the total union coupling of fuel gas, and strip top reflux tank bottoms portion is connected with strip top of the tower portion through strip top reflux pump, is equipped with first fractional distillation apparatus in advance on the reflux pipeline of strip top reflux pump exit end, is connected with liquefied gas discharge -pipe and pumice cerebrol discharge -pipe on the first fractional distillation apparatus in advance respectively, be connected with second fractional distillation apparatus in advance in the liquid phase export of strip tower bottom, second fractional distillation apparatus in advance is connected with naphtha discharge -pipe, solvent naphtha discharge -pipe and base oil discharge -pipe from top to bottom respectively, pumice cerebrol discharge -pipe and second be fractional distillation apparatus's naphtha discharge pipeline connection in advance. It is rational in infrastructure, distillates fractionally effectually, can separate in advance the reacted material, improves follow -up product quality, can increase the base oil product category.
Description
Technical field
This utility model is related to a kind of base oil production system and in particular to a kind of base oil prefractionation system.
Background technology
At present, lubricating oil is to be main body by base oil, adds a small amount of additive and be in harmonious proportion forming, the technical specification of base oil
Decide lubricants performance and technical specification with quality.The production of top-grade lubricating oil, basic oil quality is a highly important ring.
Existing base oil, in fractional distillation, needs to carry out fractional distillation by typically directly entering vacuum tower after stripper to fluid, tool
In process of production, because fluid is directly entered vacuum tower, the base oil product species after fractional distillation is few for body, and such many kinds of substance mixes
It is combined, reduce fractionating effect.Meanwhile, the gas producing in stripper top is usually directly discharged into fuel gas house steward, so
After send process outside, such fuel gas is contained within other compositions it is impossible to it is efficiently separated with process, impact fuel gas quality.
Content of the invention
The purpose of this utility model is aiming at the defect of prior art presence, provides a kind of rational in infrastructure, fractionating effect
Good, reacted material can be previously isolated from, improve subsequent product quality, the base oil of base oil product species can be increased
Prefractionation system.
Its technical scheme is：Base oil prefractionation system, including stripper, described stripper include feed inlet lines and
Stripped vapor pipeline；
The gaseous phase outlet of described stripper top is connected with stripping return tank of top of the tower, described stripping overhead reflux by pipeline
The gaseous phase outlet of tank top is connected with fuel gas house steward, and the liquid-phase outlet of described stripping overhead reflux pot bottom is through stripper fight back
Stream pump is connected with stripper top, and the reflux pipeline at described stripping overhead reflux pump discharge end is provided with the first prefractionation device,
It is connected to liquefied gas discharge pipe and light naphthar discharge pipe on described first prefractionation device；
On the liquid-phase outlet of described stripper bottom, the second prefractionation device, described second prefractionation are connected with by pipeline
Device is from top to bottom connected to Petroleum discharge pipe, solvent naphtha discharge pipe and base oil discharge pipe；
Described light naphthar discharge pipe is connected with the Petroleum discharge pipe of the second prefractionation device.
Described first prefractionation device is the debutanizing tower being arranged on stripper reflux pipeline, described debutanizing tower top
Gaseous phase outlet debutanization return tank of top of the tower is connected with by pipeline, the gaseous phase outlet of described debutanization overhead reflux tank top with
Fuel gas house steward connects, and the liquid-phase outlet of described debutanization overhead reflux pot bottom is through debutanization overhead reflux pump and debutanizing tower
Top connects, and the liquid-phase outlet of described debutanizing tower bottom passes through pipeline through heat exchangers of the reactor-outflow ＆ the feed of butane splitter and light naphthar water-cooled
But device is connected with light naphthar discharge pipe.
Described second prefractionation device is the atmospheric fractional tower being arranged on stripper liquid-phase outlet, described atmospheric fractional tower
The gaseous phase outlet of tower top is connected with atmospheric fractional tower top return tank by normal pressure fractional distillation air cooler, described atmospheric fractional tower fight back stream
The outlet at bottom of tank is connected with atmospheric fractional tower by atmospheric fractional tower top reflux pump, the going out of described atmospheric fractional tower top reflux pump
Mouth end is connected with Petroleum discharge pipe；Solvent naphtha stripper and solvent oil product are sequentially provided with described solvent naphtha discharge pipe
Pump；Base oil stripper and base oil product pump are sequentially provided with described base oil discharge pipe.
It is provided with charging heating furnace between the fluid outlet line of described atmospheric fractional tower and stripper.
It is provided with stripper top heat exchanger and stripping between the gaseous phase outlet of described stripper top and stripping return tank of top of the tower
Tower top air cooler.
This utility model compared with prior art, has advantages below：Rational in infrastructure, fractionating effect is good, can be to reaction
Material afterwards is previously isolated from, and improves subsequent product quality, can increase base oil product species.
Brief description
It is presented herein below and in conjunction with the accompanying drawings and embodiments this utility model is further illustrated.
Fig. 1 is structural representation of the present utility model；
In figure：1. stripper；2. feed inlet lines；3. stripped vapor pipeline；4. strip return tank of top of the tower；5. fuel gas
House steward；6. strip overhead reflux pump；7. liquefied gas discharge pipe；8. light naphthar discharge pipe；9. Petroleum discharge pipe；
10. solvent naphtha discharge pipe；11. base oil discharge pipes；12. debutanizing towers；13. debutanization return tank of top of the tower；14. debutanizations
Overhead reflux pump；15. heat exchangers of the reactor-outflow ＆ the feed of butane splitters；16. light naphthar water coolers；17. atmospheric fractional towers；18. normal pressures divide
Evaporate air cooler；19. atmospheric fractional tower top return tanks；20. atmospheric fractional tower top reflux pumps；21. solvent naphtha strippers；22. solvents
Oil product pump；23. base oil strippers；24. base oil product pumps；25. charging heating furnaces；26. stripper top heat exchangers；27.
Stripper head space cooler.
Specific embodiment
With reference to Fig. 1, base oil prefractionation system, including stripper 1, stripper 1 includes feed inlet lines 2 and stripping steams
Steam pipe line 3.
Gaseous phase outlet at stripper 1 top is connected with stripping return tank of top of the tower 4 by pipeline, strips return tank of top of the tower 4
The gaseous phase outlet at top is connected with fuel gas house steward 5, and the liquid-phase outlet of stripping return tank of top of the tower 4 bottom is through stripping overhead reflux pump
6 are connected with stripper 1 top.It is provided with stripper between the gaseous phase outlet at stripper 1 top and stripping return tank of top of the tower 4 and take one's place heat
Device 26 and stripper head space cooler 27.
The reflux pipeline of stripping overhead reflux pump 6 port of export is provided with the first prefractionation device, the first prefractionation device
On be connected to liquefied gas discharge pipe 7 and light naphthar discharge pipe 8.Wherein, the first prefractionation device is to be arranged on vapour
Debutanizing tower 12 on stripper 1 reflux pipeline, the gaseous phase outlet at debutanizing tower 12 top is connected with debutanization tower top by pipeline
Return tank 13, the gaseous phase outlet at debutanization return tank of top of the tower 13 top is connected with fuel gas house steward 5, debutanization return tank of top of the tower 13
The liquid-phase outlet of bottom is connected with debutanizing tower 12 top through debutanization overhead reflux pump 14, and the liquid phase of debutanizing tower 12 bottom goes out
Mouth is connected with light naphthar discharge pipe 8 through heat exchangers of the reactor-outflow ＆ the feed of butane splitter 15 and light naphthar water cooler 16 by pipeline.
Liquefied gas and light naphthar can be isolated by debutanizing tower 12, and pass through liquefied gas discharge pipe 7 and light naphthar respectively
Discharge pipe 8 is outer to be arranged.
The liquid-phase outlet of stripper 1 bottom is connected with the second prefractionation device, the second prefractionation device by pipeline
From top to bottom it is connected to Petroleum discharge pipe 9, solvent naphtha discharge pipe 10 and base oil discharge pipe 11；Wherein,
Two prefractionation devices are the atmospheric fractional tower 17 being arranged on stripper 1 liquid-phase outlet, the oil of atmospheric fractional tower 17 and stripper 1
It is provided with charging heating furnace 25 between liquid outlet line.The gaseous phase outlet of atmospheric fractional tower 17 tower top passes through normal pressure fractional distillation air cooler 18
It is connected with atmospheric fractional tower top return tank 19, the outlet at bottom of atmospheric fractional tower top return tank 19 passes through atmospheric fractional tower fight back stream
Pump 20 is connected with atmospheric fractional tower 17, and the port of export of atmospheric fractional tower top reflux pump 20 is connected with Petroleum discharge pipe 9；Solvent
Solvent naphtha stripper 21 and solvent naphtha product pump 22 are sequentially provided with oily discharge pipe 10；Set successively on base oil discharge pipe 11
There are base oil stripper 23 and base oil product pump 24.
Light naphthar discharge pipe 8 is connected with the Petroleum discharge pipe 9 of the second prefractionation device.So light naphthar leads to
Cross light naphthar discharge pipe 8 and can enter Petroleum discharge pipe 9 mixing discharge.
Operation principle：
During production, after the reacted system response of raw material, enter stripper 1, tower overhead gas is after stripper head space cooler 27 cooling
Enter stripping return tank of top of the tower 4 and carry out oil gas water three phase separation, after a part of overhead reflux pump 6 boosting through stripping of tower top oil phase,
Flow back as stripper 1 under flow and tower top temperature serials control, another part enters debutanizing tower 12；Debutanizing tower 12 bottom
An oil phase part for portion's oil phase outlet, after heat exchanger heat exchange and water cooler water-cooled, is discharged gently by light naphthar discharge pipe 8
Petroleum, another part oil phase is as flowing back into debutanizing tower 12；Debutanizing tower 12 top gas phase exports through air cooler air cooling
Enter debutanizing tower top return tank 13 afterwards, the gaseous phase outlet of debutanization return tank of top of the tower 13 passes through pipeline incoming fuel gas house steward 5,
Bottom liquid phases outlet is back to debutanizing tower 12 by debutanization overhead reflux pump 14 part, and another part is arranged by liquefied gas
Go out pipeline 7 and be expelled directly out liquefied gas.
Stripping tower bottom liquid enters atmospheric fractional tower 3, and atmospheric fractional tower 17 passes through solvent naphtha discharge pipe 10, base oil respectively
Discharge pipe 11 and Petroleum discharge pipe 9 discharge solvent naphtha, 1# base oil and Petroleum.
This utility model is rational in infrastructure, and fractionating effect is good, and reacted material can be previously isolated from, and improves follow-up producing
Quality, can increase base oil product species.
This utility model is not limited to above-mentioned embodiment, in the ken that those skilled in the art possess,
Can also make a variety of changes on the premise of without departing from this utility model objective, the content after change still falls within this utility model
Protection domain.
Claims (3)
1. base oil prefractionation system, including stripper it is characterised in that：Described stripper includes feed inlet lines and stripping
Steam pipe line；
The gaseous phase outlet of described stripper top is connected with stripping return tank of top of the tower, described stripping overhead reflux tank deck by pipeline
The gaseous phase outlet in portion is connected with fuel gas house steward, and the liquid-phase outlet of described stripping overhead reflux pot bottom is through stripping overhead reflux pump
It is connected with stripper top, the reflux pipeline at described stripping overhead reflux pump discharge end is provided with the first prefractionation device, described
Liquefied gas discharge pipe and light naphthar discharge pipe are connected on the first prefractionation device；
On the liquid-phase outlet of described stripper bottom, the second prefractionation device, described second prefractionation device are connected with by pipeline
From top to bottom it is connected to Petroleum discharge pipe, solvent naphtha discharge pipe and base oil discharge pipe；
Described light naphthar discharge pipe is connected with the Petroleum discharge pipe of the second prefractionation device；
Described first prefractionation device is the debutanizing tower being arranged on stripper reflux pipeline, the gas at described debutanizing tower top
Mutually outlet is connected with debutanization return tank of top of the tower, the gaseous phase outlet of described debutanization overhead reflux tank top and fuel by pipeline
Gas house steward connects, and the liquid-phase outlet of described debutanization overhead reflux pot bottom is through debutanization overhead reflux pump and debutanizing tower top
Connect, the liquid-phase outlet of described debutanizing tower bottom passes through pipeline through heat exchangers of the reactor-outflow ＆ the feed of butane splitter and light naphthar water cooler
It is connected with light naphthar discharge pipe；
Described second prefractionation device is the atmospheric fractional tower being arranged on stripper liquid-phase outlet, described atmospheric fractional tower tower top
Gaseous phase outlet be connected with atmospheric fractional tower top return tank by normal pressure fractional distillation air cooler, described atmospheric fractional tower top return tank
Outlet at bottom is connected with atmospheric fractional tower by atmospheric fractional tower top reflux pump, the port of export of described atmospheric fractional tower top reflux pump
It is connected with Petroleum discharge pipe；Solvent naphtha stripper and solvent naphtha product pump are sequentially provided with described solvent naphtha discharge pipe；
Base oil stripper and base oil product pump are sequentially provided with described base oil discharge pipe.
2. base oil prefractionation system according to claim 1 it is characterised in that：Described atmospheric fractional tower and stripper
It is provided with charging heating furnace between fluid outlet line.
3. base oil prefractionation system according to claim 1 it is characterised in that：The gaseous phase outlet of described stripper top
It is provided with stripper top heat exchanger and stripper head space cooler and stripping return tank of top of the tower between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620695015.9U CN205974402U (en) | 2016-07-05 | 2016-07-05 | Base oil is fractionating system in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620695015.9U CN205974402U (en) | 2016-07-05 | 2016-07-05 | Base oil is fractionating system in advance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205974402U true CN205974402U (en) | 2017-02-22 |
Family
ID=58023210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620695015.9U Active CN205974402U (en) | 2016-07-05 | 2016-07-05 | Base oil is fractionating system in advance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135809A (en) * | 2018-08-06 | 2019-01-04 | 武汉金中石化工程有限公司 | A kind of naphtha deaerating type of cycles and deoxidation method |
-
2016
- 2016-07-05 CN CN201620695015.9U patent/CN205974402U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135809A (en) * | 2018-08-06 | 2019-01-04 | 武汉金中石化工程有限公司 | A kind of naphtha deaerating type of cycles and deoxidation method |
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| GR01 | Patent grant |