CN205627179U - Fractionating tower top of tower water oil separating system - Google Patents
Fractionating tower top of tower water oil separating system Download PDFInfo
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- CN205627179U CN205627179U CN201620237699.8U CN201620237699U CN205627179U CN 205627179 U CN205627179 U CN 205627179U CN 201620237699 U CN201620237699 U CN 201620237699U CN 205627179 U CN205627179 U CN 205627179U
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Abstract
The utility model provides a fractionating tower top of tower water oil separating system, the system includes oil -water separation tank and purification and separation device, and oil -water separation tank's dehydration package links to each other with the liquid material entry of purification and separation device, and the oil export of purification and separation device links to each other with oil -water separation tank's oil entry, and outer sour water system of the sour water export of purification and separation device and water oil separating system is continuous. The utility model discloses a set up the purification and separation device on the outlet pipe way that oil -water separation tank's dehydration was wrapped, has reduced the outer row of oil content in the sour water, the system does not need additionally to increase power device, relies on autogenous pressure to realize the circulation, and the flow is simple, and the equipment investment is little, and cost and energy consumption are low.
Description
Technical field
This utility model belongs to petrochemical wastewater process field, relates to a kind of fractionator overhead oil-water separation system
System and processing method thereof, particularly relate to a kind of fractionator overhead oil-water separation system relied on from the existing circulation of compacting
And processing method.
Background technology
Due to improving constantly and being continuously increased of sulfur content in crude oil, the discharge of acid water of crude runs
Amount constantly increases, and oil content higher in acid water can cause a large amount of oil gas in soul water stripper inner accumulated,
Destroy the vapor liquid equilibrium in stripper, cause stripper operation fluctuation, affect Srteam Stripping effect and product quality；
Cause lighter hydrocarbons to run off simultaneously.But, in the sewage that in prior art, most fractionating columns are discharged, oil content is all difficult to
Control to reach qualified index.Therefore, the even running of sulfur-containing sewage stripping device is had by the oil removing of acid water
Significance.
Existing fractional distillation tower top gas stream journey mostly is below scheme (as shown in Figure 1), the oil ejected from fractionating column
Gas enters gun barrel after heat exchange cools down, and removes aerostatic press from the isolated enriched gas of gun barrel
Entrance, raw gasoline to absorption tower or as cold reflux, through oil water separator dehydration bag bottom out
Sulfuric acid sewage enters acid water system, delivers to acidic water stripping device.But in this sulfuric acid sewage
Oil content is relatively big, about 500～6000mg/L, it is necessary to process before going out device.
Cheng Fengzhen et al. (Cheng Fengzhen etc., coking sulfur-containing sullage rotational flow oil removing decoking powder technical research [J]. oil
Work environmental conservation, 2003,26 (2): 33.) propose a kind of oil removing being applied to delayed coking unit top sewage
Device, described device is as in figure 2 it is shown, it includes the capital equipments such as Water Tank, booster pump and cyclone, logical
Cross de oiling hydrocyclone to be reduced by Oil in Sewage Water content.Although outer row's acid water oil content can significantly be dropped by the method
Low, but its flow process is longer, equipment needed thereby is more, and the pressure drop that causes due to cyclone is relatively big, and (pressure drop is
100～500kPa), need to configure power-equipment booster pump, add energy consumption to plant running.
Utility model content
Long for Acidulous water oil removing process flow present in existing Crude Oil Processing, equipment needed thereby is many, needs
Wanting additional configuration power-equipment, energy consumption and high in cost of production problem, this utility model provides a kind of fractionation column
Top oil-water separation system and processing method thereof.This utility model is by the water outlet of the dehydration bag at gun barrel
Setting up purification separation device on pipeline, reduce the oil content in outer row's acid water, described system is not required to additionally
Increasing power set, rely on from the existing circulation of compacting, flow process is simple, and equipment investment is little, and cost and energy consumption are low.
For reaching this purpose, this utility model by the following technical solutions:
First aspect, this utility model provides a kind of fractionator overhead oil-water separation system, described system bag
Oil scraper water separation tank and purification separation device, the dehydration bag of gun barrel and the liquids of purification separation device
Material entrance is connected, and the oil plant outlet of purification separation device is connected with the oil plant entrance of gun barrel, purifies and divides
Acid water from device exports the acidity passed sequentially through outside acid water efflux pump and regulation valve and oil-water separation system
Water system is connected.
Wherein, acid water is that fractionator overhead oil gas out entrance gun barrel after heat exchange cools down enters
Obtaining water body after row oil-water separation, the acid water of gun barrel isolated enters purification separation device to be carried out
Process, the acid water after process with oil-water separation system outside acid water system be connected.
Following as the preferred technical scheme of this utility model, but the technical side provided not as this utility model
The restriction of case, by the following technical programs, can preferably reach and realize technical purpose of the present utility model
And beneficial effect.
As the preferred technical scheme of this utility model, described purification separation device is pressure vessel；
Or, described purification separation device is the pressure vessel of built-in filler.
In this utility model, according to the difference of the conditions such as existence, content and the temperature of oil in acid water,
Purification separation device can be pressure vessel (i.e. slack tank), it is possible to for the pressure vessel of built-in filler.Divide when purifying
From device be pressure vessel (i.e. slack tank) time, it is to utilize oil and the density contrast of water and oil and the not phase of water
Dissolubility realizes gravitational method physical separation.When the pressure vessel that purification separation device is built-in filler, it is profit
The separation of profit is realized by the principle of coalescence, separation.
As the preferred technical scheme of this utility model, described filler is metal, pottery and/or macromolecular material
In any one or the combination of at least two.In the present invention, filler used is for having coarse, coalescing and divide
Material from effect.
Preferably, described filler is ptfe composite drainage screen and/or Kynoar filter membrane.
As the preferred technical scheme of this utility model, the dehydration bag of described gun barrel fills with purification separation
It is not provided with power conveying device between the liquid material entrance put.I.e. this utility model is dependent on from being compacted now follow
Ring, decreases power conveying device, greatly reduces energy consumption, has saved cost.
As the preferred technical scheme of this utility model, the dehydration bag of described gun barrel fills with purification separation
It is not provided with Liquid level adjusting valve between the liquid material entrance put.
The processing method of fractionator overhead oil-water separation system described in the utility model is as follows:
Fractionator overhead oil gas out enters gun barrel after heat exchange cools down and carries out oil-water separation, oil
The oil content of water isolated be 500～6000mg/L acid water enter purification separation device carry out purify point
From rear, the oil content after purification separation be 80～300mg/L acid water carry out subsequent treatment, purification separation goes out
Oil plant return re-start oil-water separation.
Compared with prior art, this utility model has the advantages that
This utility model passes through to set up purification separation device on the outlet pipeline of the dehydration bag of gun barrel,
Reduce the oil content in outer row's acid water, make oil content in outer row's acid water reach 150～300mg/L；Should
System need not power set, utilize from the existing circulation of compacting, be also not required to additionally increase control set for adjusting,
Flow process is short, small investment, runs simple, makes cost and energy consumption all be substantially reduced, and its energy consumption relatively prior art drops
Low by more than 60%.Meanwhile, the oil product after purification separation device processes is circulated by this utility model
Process, add the yield of recovered oil, add economic benefit.
Accompanying drawing explanation
Fig. 1 is fractionator overhead oil vapor treatment schematic flow sheet in prior art；
Fig. 2 is the degreasing unit schematic diagram being applied to delayed coking unit top sewage in prior art；
Fig. 3 is fractionator overhead oil-water separation system structural representation described in the utility model；
Wherein, 1-gun barrel, 2-purification separation device, 3-acid water efflux pump, 4-regulates valve；5-is burnt
Making sour water tank, 6-devokes cyclone, 7-de oiling hydrocyclone, 8-sour water tank.
Detailed description of the invention
For this utility model is better described, it is simple to understand the technical solution of the utility model, below to this reality
Use novel further description.But following embodiment is only simple example of the present utility model, not
Representing or limit rights protection scope of the present utility model, this utility model protection domain with claims is
Accurate.
As it is shown on figure 3, this utility model specific embodiment part provides a kind of fractionator overhead oil-water separation
System, described system includes gun barrel 1 and purification separation device 2, the dehydration bag of gun barrel 1 with
The liquid material entrance of purification separation device 2 is connected, the oil plant outlet of purification separation device 2 and oil-water separation
The oil plant entrance of tank 1 is connected, and the acid water outlet of purification separation device 2 passes sequentially through acid water efflux pump 3
With regulation valve 4 with oil-water separation system outside acid water system be connected.
Described purification separation device 2 is pressure vessel；Or, described purification separation device 2 is built-in filler
Pressure vessel.
Described filler is the material with coarse, coalescence and centrifugation, i.e. metal, pottery and/or high score
Any one or the combination of at least two in sub-material.
Described filler is ptfe composite drainage screen and/or Kynoar filter membrane.
It is not provided with between dehydration bag and the liquid material entrance of purification separation device 2 of described gun barrel 1
Power conveying device.
It is not provided with between dehydration bag and the liquid material entrance of purification separation device 2 of described gun barrel 1
Liquid level adjusting valve.
Meanwhile, this utility model provides the processing method of a kind of fractionator overhead oil-water separation system, described
Method is:
Fractionator overhead oil gas out carries out oil-water separation after heat exchange cools down, the acid that oil-water separation obtains
After property water carries out purification separation, the acid water after purification separation carries out subsequent treatment, the oil plant that purification separation goes out
Return re-starts oil-water separation.
Following as this utility model typical case but non-limiting example:
Embodiment 1:
Present embodiments providing a kind of fractionator overhead oil-water separation system, described system includes gun barrel 1
With purification separation device 2, the dehydration bag of gun barrel 1 and the liquid material entrance phase of purification separation device 2
Even, the oil plant outlet of purification separation device 2 is connected with the oil plant entrance of gun barrel 1, and purification separation fills
The acid water outlet putting 2 passes sequentially through the acid outside acid water efflux pump 3 and regulation valve 4 and oil-water separation system
Property water system be connected.
Described purification separation device 2 is the pressure vessel of built-in ptfe composite drainage screen；Oil-water separation
It is not provided with power conveying device and liquid between dehydration bag and the liquid material entrance of purification separation device 2 of tank 1
Position regulation valve.
Embodiment 2:
Present embodiments providing a kind of fractionator overhead oil-water separation system, described system includes gun barrel 1
With purification separation device 2, the dehydration bag of gun barrel 1 and the liquid material entrance phase of purification separation device 2
Even, the oil plant outlet of purification separation device 2 is connected with the oil plant entrance of gun barrel 1, and purification separation fills
The acid water outlet putting 2 passes sequentially through the acid outside acid water efflux pump 3 and regulation valve 4 and oil-water separation system
Property water system be connected.
Described purification separation device 2 is the pressure vessel of built-in Kynoar filter membrane；Gun barrel 1
Dehydration bag and the liquid material entrance of purification separation device 2 between be not provided with power conveying device and liquid level and adjust
Joint valve.
Embodiment 3:
Present embodiments providing a kind of fractionator overhead oil-water separation system, described system includes gun barrel 1
With purification separation device 2, the dehydration bag of gun barrel 1 and the liquid material entrance phase of purification separation device 2
Even, the oil plant outlet of purification separation device 2 is connected with the oil plant entrance of gun barrel 1, and purification separation fills
The acid water outlet putting 2 passes sequentially through the acid outside acid water efflux pump 3 and regulation valve 4 and oil-water separation system
Property water system be connected.
Described purification separation device 2 is built-in Teflon filtration net and the pressure of Kynoar filter membrane
Container；It is not provided with moving between dehydration bag and the liquid material entrance of purification separation device 2 of gun barrel 1
Power conveyer device and Liquid level adjusting valve.
Embodiment 4:
Present embodiments providing a kind of fractionator overhead oil-water separation system, described system includes gun barrel 1
With purification separation device 2, the dehydration bag of gun barrel 1 and the liquid material entrance phase of purification separation device 2
Even, the oil plant outlet of purification separation device 2 is connected with the oil plant entrance of gun barrel 1, and purification separation fills
The acid water outlet putting 2 passes sequentially through the acid outside acid water efflux pump 3 and regulation valve 4 and oil-water separation system
Property water system be connected.
Described purification separation device 2 is empty pressure vessel；The dehydration bag of gun barrel 1 and purification separation
It is not provided with power conveying device and Liquid level adjusting valve between the liquid material entrance of device 2.
Embodiment 5:
Present embodiments provide the processing method of fractionator overhead oil-water separation system described in embodiment 1, tool
Gymnastics is made as follows:
After heat exchange cools down, enter gun barrel 1 from fractionator overhead oil gas out and carry out oil-water separation,
The oil content that oil-water separation obtains is that the acid water entrance purification separation device 2 of 1500mg/L carries out purification separation
After, the oil content after purification separation is that the acid water of 200mg/L carries out subsequent treatment, the oil that purification separation goes out
Material return re-starts oil-water separation.
Wherein, the pressure drop during purification separation is ＜ 80kPa.
Embodiment 6:
Present embodiments provide the processing method of fractionator overhead oil-water separation system described in embodiment 2, tool
Gymnastics is made as follows:
After heat exchange cools down, enter gun barrel 1 from fractionator overhead oil gas out and carry out oil-water separation,
The oil content that oil-water separation obtains is that the acid water entrance purification separation device 2 of 6000mg/L carries out purification separation
After, the oil content after purification separation is that the acid water of 300mg/L carries out subsequent treatment, the oil that purification separation goes out
Material return re-starts oil-water separation.
Wherein, the pressure drop during purification separation is ＜ 80kPa.
Embodiment 7:
Present embodiments provide the processing method of fractionator overhead oil-water separation system described in embodiment 3, tool
Gymnastics is made as follows:
After heat exchange cools down, enter gun barrel 1 from fractionator overhead oil gas out and carry out oil-water separation,
The oil content that oil-water separation obtains is that the acid water entrance purification separation device 2 of 500mg/L carries out purification separation
After, the oil content after purification separation is that the acid water of 150mg/L carries out subsequent treatment, the oil that purification separation goes out
Material return re-starts oil-water separation.
Wherein, the pressure drop during purification separation is ＜ 80kPa.
Embodiment 8:
Present embodiments provide the processing method of fractionator overhead oil-water separation system described in embodiment 4, tool
Gymnastics is made as follows:
After heat exchange cools down, enter gun barrel 1 from fractionator overhead oil gas out and carry out oil-water separation,
The oil content that oil-water separation obtains is that the acid water entrance purification separation device 2 of 2000mg/L carries out purification separation
After, the oil content after purification separation is that the acid water of 170mg/L carries out subsequent treatment, the oil that purification separation goes out
Material return re-starts oil-water separation.
Wherein, the pressure drop during purification separation is ＜ 80kPa.
Comparative example 1:
As it is shown in figure 1, this comparative example provides a kind of fractionator overhead oil vapor treatment system, described system bag
Oil scraper water separation tank 1, acid water efflux pump 3 and regulation valve 4, fractionator overhead oil gas out is through heat exchange
Entering gun barrel 1 after cooling and carry out oil-water separation, the acid water that oil-water separation obtains is from gun barrel 1
Dehydration wrap out, directly enter acid water system through acid water efflux pump 3 and regulation valve 4.
Wherein, in the acid water that oil-water separation obtains, oil content is 500～6000mg/L.
Comparative example 2:
As described in Figure 2, this comparative example provides a kind of oil removing dress being applied to delayed coking unit top sewage
Putting, it includes Jiaozhuo sour water tank 5, devokes cyclone 6, de oiling hydrocyclone 7 and sour water tank 8,
It carries out oil removal treatment to oil-polluted water, in this processing procedure by decoking cyclone 6 and de oiling hydrocyclone 7
The pressure drop that cyclone produces is 100～500kPa.
The result of integrated embodiment 1-8 and comparative example 1-2 is it can be seen that this utility model is by oil-water separation
Set up purification separation device on the outlet pipeline of the dehydration bag of tank, reduce the oil content in outer row's acid water,
Oil content in outer row's acid water is made to reach 80～300mg/L；This system need not power set, utilize from pressure
Realizing circulation, be also not required to additionally increase control set for adjusting, flow process is short, small investment, runs simple, makes into
This and energy consumption are all substantially reduced, and its energy consumption relatively prior art reduces more than 80%.Meanwhile, this utility model
Oil product after purification separation device processes is circulated process, adds the yield of recovered oil, increase
Economic benefit.
Applicant states, this utility model illustrates method detailed of the present utility model by above-described embodiment,
But this utility model is not limited to above-mentioned method detailed, i.e. do not mean that this utility model has to rely on above-mentioned
Method detailed could be implemented.Person of ordinary skill in the field is it will be clearly understood that to of the present utility model any
Improving, the equivalence of raw material each to this utility model product is replaced and the interpolation of auxiliary element, the choosing of concrete mode
Select, within the scope of all falling within protection domain of the present utility model and disclosure.
Claims (6)
1. a fractionator overhead oil-water separation system, it is characterized in that, described system includes gun barrel (1) and purification separation device (2), the dehydration bag of gun barrel (1) is connected with the liquid material entrance of purification separation device (2), the oil plant outlet of purification separation device (2) is connected with the oil plant entrance of gun barrel (1), the acid water of purification separation device (2) export pass sequentially through acid water efflux pump (3) with regulate valve (4) with oil-water separation system outside acid water system be connected.
Oil-water separation system the most according to claim 1, it is characterised in that described purification separation device (2) is pressure vessel；
Or, described purification separation device (2) is the pressure vessel of built-in filler.
Oil-water separation system the most according to claim 2, it is characterised in that described filler is any one or the combination of at least two in metal, pottery and/or macromolecular material.
Oil-water separation system the most according to claim 2, it is characterised in that described filler is ptfe composite drainage screen and/or Kynoar filter membrane.
Oil-water separation system the most according to claim 1, it is characterised in that be not provided with power conveying device between dehydration bag and the liquid material entrance of purification separation device (2) of described gun barrel (1).
Oil-water separation system the most according to claim 1, it is characterised in that be not provided with Liquid level adjusting valve between dehydration bag and the liquid material entrance of purification separation device (2) of described gun barrel (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620237699.8U CN205627179U (en) | 2016-03-25 | 2016-03-25 | Fractionating tower top of tower water oil separating system |
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| CN201620237699.8U CN205627179U (en) | 2016-03-25 | 2016-03-25 | Fractionating tower top of tower water oil separating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776607A (en) * | 2016-03-25 | 2016-07-20 | 上海优华系统集成技术股份有限公司 | Tower top oil-water separation system of fractionating tower and treatment method of tower top oil-water separation system |
-
2016
- 2016-03-25 CN CN201620237699.8U patent/CN205627179U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776607A (en) * | 2016-03-25 | 2016-07-20 | 上海优华系统集成技术股份有限公司 | Tower top oil-water separation system of fractionating tower and treatment method of tower top oil-water separation system |
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