CN110078161A - A kind of device and method of offshore platform production waste water compact efficient oil removing - Google Patents
A kind of device and method of offshore platform production waste water compact efficient oil removing Download PDFInfo
- Publication number
- CN110078161A CN110078161A CN201910266371.7A CN201910266371A CN110078161A CN 110078161 A CN110078161 A CN 110078161A CN 201910266371 A CN201910266371 A CN 201910266371A CN 110078161 A CN110078161 A CN 110078161A
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- water
- oil
- hydrophilic
- particle
- waste water
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
Abstract
The present invention relates to a kind of offshore platform production waste water compact efficient deoiling method and devices.For oily wastewater by close and distant particle water combination cot layer, oil wet grain and oleophobic particle are random accumulation filling inside equipment.Particle adsorbs emulsification state oil droplet or smaller suspended matter in water by absorption and coalescence effect.Oil content in suspended matter and water is integrally reduced in water by the cooperation of upper and lower particle.Tight compression either is uniformly mixed into filter bed using different hydrophilic and hydrophobic materials, and impurities in water is removed to the filtering, absorption, coalescence effect of suspended matter and oil droplet by close and distant particle water.The present invention also provides a set of device for realizing this method, described device includes shell, modified metal baffle, partition, several parts such as hydrophilic and hydrophobic particle combination bed.The device of the invention parameter can adjust according to the actual situation, optimize, and realize the removal to dispersed and emulsification state oil phase, compensate for the deficiency of industrial production water oiliness sewage treatment technology.
Description
Technical field
The invention belongs to environment protection field oily water separation techniques, and in particular to a kind of offshore platform produces waste water advanced oil removing
Device and method.
Background technique
At the initial stage of marine oil gas-field exploitation, ground end crude oil can be produced by primary oil recovery, but with exploitation of oil-gas field
Into the middle and later periods, down-hole pressure is reduced, and oil gas field improves oil gas field pressure by the way of displacement of reservoir oil by filling water, the chemical displacement of reservoir oil, just
In the further exploitation to oil gas field.It is mostly water phase, oil phase and gas phase in Produced Liquid during exploitation of oil-gas field.Subsequent
When process flow water-oil phase separates, due to the presence of a large amount of medicaments and dynamic equipment that are added in exploitation of oil-gas field process flow,
Cause to cause in water phase there are the oil droplet of a large amount of emulsification states to produce water oil content excessively high.
The domestic commonly used adoptable equipment of oil water separation process has inclined plate oil expeller, coarse separation, cyclonic separation
Etc. technologies, a few class equipment objects used and the occasion used it is often different.Although the separative efficiency of UF membrane is high, cost
Also very high, because flux is small, equipment is also very huge.The principle of sedimentation separation is gravitational settling, low separation efficiency, and equipment is also very
It is huge, it is frequently used as the means of pre-separation.Cyclonic separation equipment is simple, takes up little area, and cost of investment is low, but low separation efficiency, right
The oil water mixture separating effect of emulsification state is poor.
Therefore the technology for the production waste depth oil removing that there is an urgent need in the art to the inefficient fruits of development cost is good, low energy consumption.
Summary of the invention
In view of problem above and correlation theory, the present invention provides a kind of production waste water compact efficient oil removings of offshore platform
Method and device thereof, specific technical solution are as follows:
A kind of device of offshore platform production waste water compact efficient oil removing, described device include shell, modified metal baffle,
Partition, hydrophilic and hydrophobic particle combine bed, feed inlet, water phase outlet, oil mutually outlet.
Wherein, the feed inlet is in the middle part of the bottom of the shell, in the production waste water oil content be 1000ppm~
2000ppm；The oil droplet size of the micro oil is 20~100um；Suspended matter is 100~200mg/L, behaviour in the production waste water
Making temperature is 38~90 DEG C；The oil mutually exports at the top of the shell；The water phase outlet is located at the bottom of the shell
Two sides；Inside filling hydrophilic and hydrophobic particle combines bed, modified metal baffle and partition.
The shell is vertical circular tank body.The hydrophilic and hydrophobic particle layers are to utilize hydrophilic particle and hydrophobicity
The random filling in bulk of grain.The hydrophilic and hydrophobic particle layers filling is appropriate, and spacing can make partial size less than 100 μm between particle
Particle is able to extend the service life that grain bed uses so not will cause the blocking of bed by particle layers.The modified metal
Baffle is modified using metal surface, makes baffle that hydrophilic and oleophobic property be presented, wherein baffle and hydrophilic and hydrophobic particle layers
Spacing spacing be 50cm.The partition is located on the upside of hydrophilic and hydrophobic particle layers.
Offshore platform is handled seabed Crude Oil exploitation using numerous production trees, is produced and is contained mass production in crude oil
It is useless；China produces production platform there are two types of the discharging modes of waste water: first is that handling heel row sea up to standard；Another kind is to need to infuse
The oil reservoir for entering water exploitation will produce in water process rear injection bottom up to standard.No matter that discharging modes, be required to reduce production useless
Water oil content.
The present invention also provides a kind of method of offshore platform production waste water compact efficient oil removing, production tree handle is passed through in oil field
Crude oil extraction is collected to maritime center platform and is handled, and offshore platform production water first passes through production separator, makes water, oil, gas
Three phase separation, between 1000ppm~2000ppm, suspended matter is the production waste water oil content flowed out from production separator bottom
100~200mg/L, oil droplet size is between 20~100um.In this patent, this strand of platform production waste water is set by this patent
Standby bottom enters in hydrophilic and hydrophobic particle combination bed cavity, and since upper baffle plate acts on, production waste water can only pass through radial side
To outflow cavity.Waste water is produced when flowing through hydrophilic and hydrophobic particle layers, particle adsorbs remaining water by absorption and coalescence effect
Middle emulsification state oil droplet or smaller suspended matter.Integrally reduce in water that oil contains in suspended matter and water by the cooperation of upper and lower particle
Amount.Either be uniformly mixed tight compression into filter bed using different hydrophilic and hydrophobic materials, by close and distant particle water to suspended matter and
The filtering of oil droplet, absorption, coalescence effect remove impurities in water.By the way that partial size can be made to be greater than 50um when hydrophobe particle layers
Oil droplet coalescence grow up, be detached from；Produce after waste water passes through bed, coalescence grow up after oil droplet and treated water quality due to
The effect of the hydrophilic and oleophobic baffle in outside, water drive oil droplet to move upwards.Oil droplet coalesces on cylinder top, and from top oil, mutually outlet is arranged
It removes.Clean water quality is exported from bottom aqueous phase and is discharged, and water quality that treated can achieve 60ppm hereinafter, suspension content exists
50mg/L or less.
It can be expanded using the method for expanding filtrate bed height inside offshore platform production waste water compact efficient degreasing unit
Big processing capacity.
The beneficial effects of the present invention are the device is by hydrophobic oleophilic oil particle and oleophobic hydrophilic particle with random distribution
Mode accumulated, play demulsification, coalescence and oil droplet floating upward quickly centrifugation, and carry out for the characteristic containing micro oil droplet
Specific aim separation combination, and have the features such as high efficiency and low energy consumption, the processing suitable for different offshore platform oil-containing production wastes
Process.
Detailed description of the invention
Fig. 1 is offshore platform production waste water compact efficient degreasing unit structural schematic diagram.
Symbol description:
Oily mutually outlet 1；Shell 2；Partition 3；Hydrophilic and hydrophobic particle combines bed 4；Hydrophilic and oleophobic baffle 5；Water phase exports 6-
1,6-2；Production waste import 7.
Specific embodiment
In the following, the present invention is specifically described by embodiment.It is necessarily pointed out that following embodiment is only used
In the invention will be further described, it should not be understood as limiting the scope of the invention, professional and technical personnel in the field
Some nonessential modifications and adaptations that content according to the present invention is made, still fall within protection scope of the present invention.
Embodiment 1
Certain offshore platform produces waste water oil removing, using a kind of offshore platform production waste water compact efficient oil removing dress of the present invention
It sets.
The structural schematic diagram of its above-mentioned apparatus is as shown in Figure 1, include oil mutually outlet 1；Shell 2；Partition 3；Hydrophilic and hydrophobic
Grain combination bed 4；Hydrophilic and oleophobic baffle 5；Water phase exports 6-1,6-2；Production waste import 7；
Wherein, the feed inlet is in the middle part of the bottom of the shell, in the production waste water oil content be 1000ppm~
2000ppm；The oil droplet size of the micro oil is 20~100um；Suspended matter is 100~200mg/L, behaviour in the production waste water
Making temperature is 38~90 DEG C；The oil mutually exports at the top of the shell；The water phase outlet is located at the bottom of the shell
Two sides；Inside filling hydrophilic and hydrophobic particle combines bed, modified metal baffle and partition.
The shell is vertical circular tank body.The hydrophilic and hydrophobic particle layers are to utilize hydrophilic particle and hydrophobicity
The random filling in bulk of grain.The hydrophilic and hydrophobic particle layers filling is appropriate, and spacing can make partial size less than 100 μm between particle
Particle is able to extend the service life that grain bed uses so not will cause the blocking of bed by particle layers.The modified metal
Baffle is modified using metal surface, makes baffle that hydrophilic and oleophobic property be presented, wherein baffle and hydrophilic and hydrophobic particle layers
Spacing spacing be 50cm.The partition is located on the upside of hydrophilic and hydrophobic particle layers.
Offshore platform is handled seabed Crude Oil exploitation using numerous production trees, is produced and is contained mass production in crude oil
It is useless；China produces production platform there are two types of the discharging modes of waste water: first is that handling heel row sea up to standard；Another kind is to need to infuse
The oil reservoir for entering water exploitation will produce in water process rear injection bottom up to standard.No matter that discharging modes, be required to reduce production useless
Water oil content.
Crude oil extraction is collected to maritime center platform by production tree and is handled by oil field, and offshore platform production water first passes through
Production separator is crossed, water, oil, gas three phase separation is made, the production waste water oil content flowed out from production separator bottom is in 1000ppm
Between~2000ppm, suspended matter is 100~200mg/L, and oil droplet size is between 20~100um.In this patent, this stock is flat
Platform produces waste water and is entered in hydrophilic and hydrophobic particle combination bed cavity by this patent equipment bottom, since upper baffle plate acts on,
Production waste water can only flow out cavity by radial direction.Waste water is produced when flowing through hydrophilic and hydrophobic particle layers, particle passes through suction
It is attached to adsorb emulsification state oil droplet or smaller suspended matter in remaining water with coalescence effect.It is integrally reduced by the cooperation of upper and lower particle
Oil content in suspended matter and water in water.Tight compression either is uniformly mixed into filter bed using different hydrophilic and hydrophobic materials, is passed through
Close and distant particle water removes impurities in water to the filtering, absorption, coalescence effect of suspended matter and oil droplet.Pass through hydrophobe particle layers
When partial size can be made to grow up greater than the oil droplet coalescence of 50um, be detached from；Waste water is produced after bed, coalesces the oil after growing up
Due to the effect of the hydrophilic and oleophobic baffle in outside, water drives oil droplet to move upwards for drop and treated water quality.Oil droplet is on cylinder top
Coalescence, from top oil, mutually outlet is excluded.Clean water quality is exported from bottom aqueous phase and is discharged, and treated, and water quality can achieve
60ppm hereinafter, suspension content in 50mg/L or less.
It can be expanded using the method for expanding filtrate bed height inside offshore platform production waste water compact efficient degreasing unit
Big processing capacity.
Main advantages of the present invention are:
(1) random combine is carried out using hydrophilic and oleophobic and lipophilic-hydrophobic property two kinds of particles and be piled into particle layers, efficiently go
Except bright oil, dispersed oil and the oil emulsion in production waste, and energy consumption is extremely low, high-efficient.
(2) using baffle effect around particle layers, the water entrainment that makes that treated is poly- and oil droplet after growing up is to cylinder top
Portion makes oily phase from the mutually outlet discharge of top oil using the buoyancy of oily phase, and the outlet of purification water phase is located at cylinder body bottom and guarantees water phase
It is low to export oil content.
(3) equipment treating capacity is improved using the method for increasing filtrate height, reduces the increase of device diameters, be suitable for sea
The requirement of platform tight space.
Claims (7)
1. a kind of device of offshore platform production waste water compact efficient oil removing, which is characterized in that described device includes shell, metal
Baffle, partition, hydrophilic and hydrophobic particle combine bed, feed inlet, water phase outlet, oil mutually outlet；Wherein, the feed inlet is described
In the middle part of the bottom of shell, oil content is 1000ppm~2000ppm in the production waste water；The oil droplet size of the micro oil is
20~100um；Suspended matter is 100~200mg/L in the production waste water, and operation temperature is 38~90 DEG C；The oil mutually exports
At the top of the shell；The water phase outlet is located at the two sides of the bottom of the shell；Inside filling hydrophilic and hydrophobic particle combination
Bed, metal baffle and partition.
2. the apparatus according to claim 1, which is characterized in that the shell is vertical circular tank body.
3. the apparatus according to claim 1, which is characterized in that the hydrophilic and hydrophobic particle layers are to utilize hydrophilic particle
And hydrophobic particle filling in bulk at random.
4. device according to claim 3, which is characterized in that the hydrophilic and hydrophobic particle layers packed density is appropriate,
Spacing makes solid impurity of the partial size less than 100 μm pass through particle layers between grain.
5. the apparatus according to claim 1, which is characterized in that the spacing of the metal baffle and hydrophilic and hydrophobic particle layers
Spacing is 50cm.
6. the apparatus according to claim 1, which is characterized in that the partition is located on the upside of hydrophilic and hydrophobic particle layers.
7. a kind of method of offshore platform production waste water compact efficient oil removing, includes the following steps:
(1) offshore platform production water first passes through production separator, makes water, oil, gas three phase separation, flows out from production separator bottom
Production waste water oil content between 1000ppm~2000ppm, suspended matter is 100~200mg/L, oil droplet size 20~
Between 100um；
(2) above-mentioned platform is produced into waste water and hydrophilic and hydrophobic particle combination bed is entered by device bottom described in claim 1
It in cavity, is acted on by upper baffle plate, produces waste water by radial direction and flow out cavity；
Waste water is produced when flowing through hydrophilic and hydrophobic particle layers, particle adsorbs emulsification state in remaining water by absorption and coalescence effect
Oil droplet or smaller suspended matter；
(3) oil content in suspended matter and water is integrally reduced in water by the cooperation of upper and lower particle；Either using different close and distant
Water-based material is uniformly mixed tight compression into filter bed, is made by close and distant particle water to the filtering of suspended matter and oil droplet, absorption, coalescence
For removing impurities in water；
(4) after production waste water passes through bed, coalescence grow up after oil droplet and treated water quality due to the hydrophilic and oleophobic baffle in outside
Effect, water drive oil droplet move upwards；Oil droplet coalesces on cylinder top, and from top oil, mutually outlet is excluded；Clean water quality from
Bottom aqueous phase outlet discharge, water quality that treated can achieve 60ppm hereinafter, suspension content is in 50mg/L or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910266371.7A CN110078161A (en) | 2019-04-03 | 2019-04-03 | A kind of device and method of offshore platform production waste water compact efficient oil removing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910266371.7A CN110078161A (en) | 2019-04-03 | 2019-04-03 | A kind of device and method of offshore platform production waste water compact efficient oil removing |
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| CN110078161A true CN110078161A (en) | 2019-08-02 |
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| CN201910266371.7A Pending CN110078161A (en) | 2019-04-03 | 2019-04-03 | A kind of device and method of offshore platform production waste water compact efficient oil removing |
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Cited By (2)
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| CN111450576A (en) * | 2020-04-15 | 2020-07-28 | 中国石油化工股份有限公司 | Oil-water separation device and oil-water separation method |
| CN112479452A (en) * | 2020-11-06 | 2021-03-12 | 大庆油田有限责任公司 | Ultrasonic coalescence contains polymer produced water oil-water separation composite set |
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