CN104383719A - Oil drop catcher of inverted fluidized bed - Google Patents
Oil drop catcher of inverted fluidized bed Download PDFInfo
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- CN104383719A CN104383719A CN201410712696.0A CN201410712696A CN104383719A CN 104383719 A CN104383719 A CN 104383719A CN 201410712696 A CN201410712696 A CN 201410712696A CN 104383719 A CN104383719 A CN 104383719A
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- bed
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- fluid bed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0205—Separation of non-miscible liquids by gas bubbles or moving solids
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention discloses an oil drop catcher of an inverted fluidized bed. The oil drop catcher comprises a fluidized bed, a liquid charge system, an in-bed packing concentration monitoring system and a gas charge system, wherein the fluidized bed comprises a cylinder body, an in-bed packing support element, an air distributing plate and in-bed packing which is arranged in the in-bed packing support element and the surface of which is covered by an oleophylic coating; by utilizing the characteristic that the density of a solid particle is less than that of a liquid, the in-bed packing moves up and down in a bed and is at a fluidized state in the bed, so that the in-bed packing solid particles and the oil-water mixture are mixed fully, and the in-bed packing of the oleophylic coating adsorbs the oil phase so as to achieve the aim of catching oil drops. The oil drop catcher of the inverted fluidized bed has the advantages of running stability, relatively high safety, simple structure, relatively high separation efficiency, operation simplicity and the like.
Description
Technical field
The present invention relates to a kind of oily-water seperating equipment, be specifically related to a kind of inversion fluid bed oil droplet grabber, belong to oil field of Environment Protection.
Background technology
Carrying out water-oil separating to oil field mining liquid is an important link in oil-gas gathering and transportation process.The water-oil separating mode of current employing mainly contains: gravitational separator-: utilize the density contrast between profit, adopt the mode of sedimentation to be separated; The difference of cyclone-utilize profit density, makes the oil-water mixture of High Rotation Speed produce different centrifugal force, thus oil and water is separated; Electrically separated-principle is interchange or the DC electric field that emulsion is placed in high pressure, because electric field is to the effect of water droplet, weakens the interfacial film strength of emulsion, promotes the collision of water droplet, merging, is agglomerated into the water droplet that particle diameter is larger, separates from crude oil; Form micro-bubble in dissolved air flotation method-dependence water, carry wadding grain and float up to a kind of method that liquid level makes water-oil separating.A lot of oil field adds surfactant and polymer on stream at present, the emulsifying agents such as oil displacement agent, crude oil and surfactant, polymer etc. form stable colloidal dispersion emulsified crude oil, add the naturally occurring emulsifying agent contained in oil, Produced Liquid is existed with stable emulsion, the oil water mixture of this stable emulsion adds the difficulty of water-oil separating, traditional technique and separation equipment are mechanically, cannot thoroughly be separated, and reservoir reserve reduces now, in Produced Liquid, oil phase content is less, oil droplet is dispersed in water with fine particle state, traditional mechanical means is adopted to be separated, be difficult to especially be separated.Method of the prior art cannot meet the needs of the water-oil separating of the emulsified crude oil of actual production, therefore needs to develop high efficiency, the technology of low energy consumption and separation equipment.
Summary of the invention
In order to solve, the oil water mixture oil droplet separative efficiency existed in prior art is low, volume is large, cost is high and power consumption large, the problem that oil-polluted water is serious to environmental pollutions such as oil field water quality, soil.The present invention proposes a kind of inversion fluid bed oil droplet grabber, it adopts the fluid bed being inverted this uniqueness of fluid bed, it utilizes density of solid particles this distinguishing feature less of fluid density, original state particle is suspended in bed top, liquid enters from fluid bed top entry, carries particle and moves downward.Meanwhile, due to the density contrast of particle and liquid, particle, under the effect of buoyancy, makes particle move upward.Under fluid drag and buoyancy, particle moves up and down like this, particle is formed in bed and circulates.Be inverted the particle of fluid bed and the move toward one another of fluid simultaneously, be also conducive to particle and liquid fully mixes, reach with the physical property such as different densities, viscosity of water the object be separated according to oil.
A kind of concrete scheme being inverted fluid bed oil droplet grabber that the present invention proposes is as follows:
A kind of inversion fluid bed oil droplet grabber, comprise fluid bed, feed liquor system, packing density monitoring system in bed, gas handling system, it is characterized in that: fluid bed comprises cylindrical shell, packing support part in bed, filler in the bed that air distribution plate and the surface coverage be placed in bed on packing support part have an oleophylic coating, in bed, packing support part and air distribution plate are arranged radially in cylindrical shell from top to bottom, cylindrical shell in bed above packing support part is provided with filler charging aperture and exhaust outlet in bed, cylindrical shell above air distribution plate is provided with filler discharging opening in bed, cylindrical shell below air distribution plate is provided with the air inlet be connected with gas handling system, the top of cylindrical shell is connected with feed liquor system, the bottom of cylindrical shell is provided with leakage fluid dram, several monitoring points be connected with packing density monitoring system in bed are provided with in cylindrical shell in bed between packing support part and air distribution plate,
Further, in described bed, the density of filler is less than oil water mixture, and when oil water mixture enters bed from fluid bed top, in bed, filler is fluidized state under liquid carries in cylindrical shell;
Further, in described bed, filler adopts hollow ball shape particle, and outer surface covers oleophylic coating, particle and oil water mixture mix contact time, oil phase can be attached to particle surface, thus reaches the object that oil droplet catches;
Further, described feed liquor system comprises liquid phase spray thrower, directly sprays in the cylindrical shell of fluid bed by oil water mixture by spray thrower;
Further, in described bed, packing density monitoring system comprises concentration monitor and several fibre-optical probes, and fibre-optical probe is distributed in bed in packed-fluidized bed layer, by filler flow regime in bed in the concentration monitor monitoring fluid bed cylindrical shell that is attached thereto;
Further, described gas handling system is interval start up system, and in fluid bed during filler fluidisation energy shortage, play the effect of makeup energy, gas handling system comprises gas flowmeter and gas compressor, and air enters from the air inlet below air distribution plate;
Further, initial time, in bed, filler is entered bed by charging aperture, and is placed in bed on packing support part, and in bed, packing support part adopts butterfly valve design, when oil water mixture enters in fluid bed, is opened by packing support part in bed;
Further, discharge filler in bed from discharging opening, after oil is separated with filler in bed, in bed, filler rejoins in bed, recycles;
Further, the material of described oleophylic coating is fluorine-containing poly-benzoxazine;
Further, in described bed, filler adopts hydrophobic aerogel particles.
The course of work and the principle of inversion fluid bed oil droplet grabber of the present invention are: when oil water mixture enters bed from inversion fluid bed top, liquid is uniformly distributed in bed, in bed, filler is under liquid carries, in fluidized state, in bed, active force suffered by filler comprises drag force, gravity, buoyancy and virtual mass power etc.In bed, filler moves up and down in bed, in fluidized state under the promotion of water-oil phase mixture, filler solid particle and oil water mixture in bed are fully mixed, contact, due to the lipophile of filling surface in bed, the oil phase in oil water mixture is made to stick to filling surface in bed, filling surface attachment oil phase in bed, then add the weight of filler in bed, to cause in bed filler deposition bottom bed, fully contact with filler in bed at oil water mixture, after mixing, filler in the bed being stained with oil droplet is discharged from discharging opening, by mode of heating, oil is departed from from filling surface in bed, collect gained oil phase.All the other liquid are discharged from the leakage fluid dram bottom bed, namely reach water-oil separating.A state for endoparticle fluidisation is judged by granule density monitor, when bed bottom, concentration increases gradually, be increased to certain numerical value when no longer changing, illustrate that separation process completes, finally discharge particle from discharging opening, stick the particle of oil phase, by heating, make oil and particle separation, isolated crude oil can be recycled.In bed, remaining liquid and aqueous phase are discharged by the leakage fluid dram bottom bed, and sample examination, can measure separative efficiency.In addition, in order to improve the motion state of filler in the bed in bed, increase the energy in bed, higher in oil phase content, when liquid phase viscosity is larger, in bed, kinergety consumption is comparatively large, starts gas handling system, by adding air, carry out makeup energy with this, the addition of air is depending on flow regime in bed.Flow regime in bed, by bed inner fiber probe acquires information, is sent to packing density monitor in bed.In bed after separation, filler can rejoin in bed, recycles.In order to ensure the separative efficiency of profit, can according to the difference of oil content, feed liquor speed in bed, determines the size of grain diameter and the quantity of particle.
Beneficial effect of the present invention is as follows:
Inversion fluid bed oil droplet grabber of the present invention adopts inversion liquid-solid fluid bed, being inverted liquid-solid fluid bed is the liquid-solid parallel descending-bed reactor flowed downward, compare with traditional parallel uplink fluid bed, there is liquid-solid contact time short, liquid-solid speed and more even, the liquid-solid axial backmixing of concentration radial distribution greatly reduces, easily realize the features such as high solid-liquid ratio operation.Therefore be conducive to fully contacting of particle and oil water mixture, improve water-oil separating efficiency.Can be used for the water-oil separating of the oil water mixture in oil field mining liquid, oil field mining liquid comes from tertiary phase, oil water mixture containing the high polymer such as surfactant and polymer in oil field mining liquid, now oil water mixture presents stable emulsion state, cause water-oil separating extremely difficult, when adopting inversion fluid bed oil droplet grabber of the present invention, there is separation process stable, security be higher, structure is simple, separative efficiency is higher, simple operation and other advantages.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram being inverted fluid bed oil droplet grabber
Fig. 2 is the fundamental diagram of inversion fluid bed oil droplet grabber of the present invention
Fig. 3 is air distribution plate schematic diagram
Fig. 4 is particles supports net schematic diagram
In figure: 1 spray thrower; 2 charging apertures; 3 interior packing support nets; 4 cylindrical shells; 5 fibre-optical probes; 6-1,2 discharging openings; 7 leakage fluid drams; 8 air inlets; 9 air distribution plates; 10 exhaust outlets; 11 fluid flowmeters; 12 pumps; 13 storage tanks; 14 gas compressors; 15 gas flowmeters; 16 concentration monitors
Detailed description of the invention
Below in conjunction with embodiment, inversion fluid bed oil droplet grabber of the present invention is described further, but not thereby limiting the invention.
Embodiment 1
As depicted in figs. 1 and 2:
A kind of inversion fluid bed oil droplet grabber, comprises packing density monitoring system, gas handling system in fluid bed, feed liquor system, bed, fluid bed comprises cylindrical shell (4), packing support net (3) in bed, filler in air distribution plate (9) and bed, in bed, packing support net (3) and air distribution plate are arranged radially in cylindrical shell from top to bottom, air distribution plate is perpendicular to cylindrical shell direction, gas enters in cylindrical shell by air distribution plate, inlet is provided with at cylindrical shell top, inlet is connected with feed liquor system, charging aperture (2) is provided with on cylindrical shell top, exhaust outlet (10), charging aperture is the import of filler in bed, two discharging openings (6-1) are provided with in cylindrical shell bottom, (6-2), air inlet (8) is provided with in air distribution plate bottom, air inlet is connected with gas handling system, leakage fluid dram (7) is provided with at cylinder body bottom, several monitoring points be connected with packing density monitoring system in bed are provided with in cylindrical shell in bed between packing support net (3) and air distribution plate.
In the bed of fluid bed, filler is hollow ball shape particle, can be divided into multiple different-grain diameter, as adopted different-grain diameter in 3, is respectively 1mm, 2mm and 5mm, and particle surface is oleophilic coating, and density is at 800-900kg/m3, and reusable.Particle diameter can be selected according to concrete practical operation condition, variable grain diameter particle can surface coverage used in combination have an oleophylic coating bed in filler; Wherein in bed, packing support net (3) is movable part, employing butterfly valve type designs, time initial, in bed, filler to be placed in bed on packing support net (3), when oil water mixture enters bed, in bed, packing support net (3) is opened, and filler can freely-movable in cylindrical shell.When oil water mixture enters bed from fluid bed top, liquid is uniformly distributed in bed, and in bed, filler is under liquid carries, in fluidized state.Oleophilic coating can adopt lipophile material conventional in prior art, i.e. fluorine-containing poly-benzoxazine, by the wetability that oil is different with water, reach the effect of hydrophobic oleophilic oil, in bed, filler particles can adopt filler material in bed conventional in prior art, i.e. silica gel particle, density is less than oil water mixture.Hydrophobic aerogel particles has the performance of super-hydrophobic/super-oleophilic, and extremely strong adsorption capacity.Adopt and be inverted fluid bed, the fluid containing oil droplet carries the hydrophobic aerogel particles cocurrent flow descending of low grain density, and between liquid-solid phase under drag force and buoyancy, hydrophobic aerogel particles is fluidized, and interacts with oil droplet, adsorbs oil droplet.Meanwhile, hydrophobic aerogel particles density can increase thereupon, and diameter also can change, and is conducive to separation and the recovery of hydrophobic aerogel particles, and realize profit and be separated continuously, efficiently and the recycling of hydrophobic aerogel particles, being separated adsorption efficiency can reach more than 99%.
Feed liquor system comprises liquid phase spray thrower (1), fluid flowmeter (11), pump (12) and storage tank (13), above liquid phase spray thrower fixed cylinder, liquid phase spray thrower is connected with fluid flowmeter, oil water mixture injects in bed by liquid phase spray thrower (1), the flow of oil water mixture is controlled by fluid flowmeter (11), in order to ensure the separative efficiency of profit, can according to the difference of oil content, in bed, filler sizes and quantity etc. select feed liquor flow and feed liquor speed.
Gas handling system comprises gas flowmeter (15) and gas compressor (14); Gas compressor is connected with gas flowmeter and is connected to cylindrical shell air inlet by air inlet pipe.Gas handling system is accessory system, and when oil phase content is larger, in bed, the resistance of motion is comparatively large, opens air inlet, and increase a self-energy by introducing gas, make particle abundant fluidisation in bed, particle fully contacts with oil water mixture, thus improves water-oil separating efficiency.
In bed, packing density monitoring system comprises concentration measuring apparatus and fibre-optical probe, several fibre-optical probes are arranged in the middle part of cylindrical shell vertically to bottom, fibre-optical probe can be multiple, as 6 fibre-optical probe (5-1) ~ (5-6), fibre-optical probe is connected with concentration measuring apparatus, monitors filler flow regime in bed with this, thus judges whether to need to open air inlet (8), there is provided a self-energy, the fluidisation of reinforcement filler.Also a state for endoparticle fluidisation is judged by granule density monitor, when bed bottom, concentration increases gradually, be increased to certain numerical value when no longer changing, illustrate that separation process completes, finally discharge particle from discharging opening, stick the particle of oil phase, by heating, make oil and particle separation, isolated crude oil can be recycled.In bed, remaining liquid and aqueous phase are discharged by the leakage fluid dram bottom bed, and sample examination, can measure separative efficiency.
Particle after separation can rejoin in bed, recycles.
Claims (10)
1. an inversion fluid bed oil droplet grabber, comprise fluid bed, feed liquor system, packing density monitoring system in bed, gas handling system, it is characterized in that: fluid bed comprises cylindrical shell, packing support part in bed, filler in the bed that air distribution plate and the surface coverage be placed in bed on packing support part have an oleophylic coating, in bed, packing support part and air distribution plate are arranged radially in cylindrical shell from top to bottom, cylindrical shell in bed above packing support part is provided with filler charging aperture and exhaust outlet in bed, cylindrical shell above air distribution plate is provided with filler discharging opening in bed, cylindrical shell below air distribution plate is provided with the air inlet be connected with gas handling system, the top of cylindrical shell is connected with feed liquor system, the bottom of cylindrical shell is provided with leakage fluid dram, several monitoring points be connected with packing density monitoring system in bed are provided with in cylindrical shell in bed between packing support part and air distribution plate.
2. one according to claim 1 is inverted fluid bed oil droplet grabber, it is characterized in that: in described bed, the density of filler is less than oil water mixture, when oil water mixture enters bed from fluid bed top, in bed, filler is fluidized state under liquid carries in cylindrical shell.
3. one according to claim 1 is inverted fluid bed oil droplet grabber, it is characterized in that: in described bed, filler adopts hollow ball shape particle, outer surface covers oleophylic coating, particle and oil water mixture mix contact time, oil phase can be attached to particle surface, thus reaches the object that oil droplet catches.
4. one according to claim 1 is inverted fluid bed oil droplet grabber, it is characterized in that: described feed liquor system comprises liquid phase spray thrower, is directly sprayed in the cylindrical shell of fluid bed by oil water mixture by spray thrower.
5. one according to claim 1 is inverted fluid bed oil droplet grabber, it is characterized in that: in described bed, packing density monitoring system comprises concentration monitor and several fibre-optical probes, fibre-optical probe is distributed in bed in packed-fluidized bed layer, by filler flow regime in bed in the concentration monitor that is attached thereto monitoring fluid bed cylindrical shell.
6. one according to claim 1 is inverted fluid bed oil droplet grabber, it is characterized in that: described gas handling system is interval start up system, in fluid bed in bed during filler fluidisation energy shortage, play the effect of makeup energy, gas handling system comprises gas flowmeter and gas compressor, and air enters from the air inlet below air distribution plate.
7. be inverted fluid bed oil droplet grabber according to the one one of claim 1 to 6 Suo Shu, it is characterized in that: initial time, in bed, filler is entered bed by charging aperture, and to be placed in bed on packing support part, in bed, packing support part adopts butterfly valve design, when oil water mixture enters in fluid bed, packing support part in bed is opened.
8. be inverted fluid bed oil droplet grabber according to the one one of claim 1 to 6 Suo Shu, it is characterized in that: discharge filler in bed from discharging opening, after oil is separated with filler in bed, in bed, filler rejoins in bed, recycles.
9. be inverted fluid bed oil droplet grabber according to the one one of claim 1 to 6 Suo Shu, it is characterized in that: the material of described oleophylic coating is fluorine-containing poly-benzoxazine.
10. be inverted fluid bed oil droplet grabber according to the one one of claim 1 to 6 Suo Shu, it is characterized in that: in described bed, filler adopts hydrophobic aerogel particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712696.0A CN104383719B (en) | 2014-12-01 | 2014-12-01 | A kind of inversion fluid bed oil droplet grabber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410712696.0A CN104383719B (en) | 2014-12-01 | 2014-12-01 | A kind of inversion fluid bed oil droplet grabber |
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| CN104383719A true CN104383719A (en) | 2015-03-04 |
| CN104383719B CN104383719B (en) | 2016-04-06 |
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| CN201410712696.0A Expired - Fee Related CN104383719B (en) | 2014-12-01 | 2014-12-01 | A kind of inversion fluid bed oil droplet grabber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903292A (en) * | 2016-07-01 | 2016-08-31 | 山东新达能环保科技有限公司 | Oil drop filtering filler and high-efficient condensing oil gas recycling device |
| CN109626618A (en) * | 2018-12-27 | 2019-04-16 | 东北石油大学 | Recirculating fluidized bed oil water separator |
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| EP0722771A1 (en) * | 1990-07-09 | 1996-07-24 | Upfront Chromatography A/S | Method of distributing a liquid in a fluid bed reactor and fluid bed particles for use in carrying out the method |
| CN1185121A (en) * | 1995-05-23 | 1998-06-17 | 罗纳德·W·阿瑟 | separating hydrocarbons and water from a mixture |
| CN1302224A (en) * | 1998-02-09 | 2001-07-04 | 工业科学技术网络公司 | Ion separation using surface-treated xerogel |
| WO2002087871A1 (en) * | 2001-05-02 | 2002-11-07 | Phillips Plastics Corporation | Composite particles |
| US20020185444A1 (en) * | 2001-05-18 | 2002-12-12 | The Regents Of The University Of California | Method of oil spill recovery using hydrophobic sol-gels and aerogels |
| WO2008060940A2 (en) * | 2006-11-10 | 2008-05-22 | New Jersey Institute Of Technology | Inverse fluidization for purifying fluid streams |
-
2014
- 2014-12-01 CN CN201410712696.0A patent/CN104383719B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0722771A1 (en) * | 1990-07-09 | 1996-07-24 | Upfront Chromatography A/S | Method of distributing a liquid in a fluid bed reactor and fluid bed particles for use in carrying out the method |
| CN1185121A (en) * | 1995-05-23 | 1998-06-17 | 罗纳德·W·阿瑟 | separating hydrocarbons and water from a mixture |
| CN1302224A (en) * | 1998-02-09 | 2001-07-04 | 工业科学技术网络公司 | Ion separation using surface-treated xerogel |
| WO2002087871A1 (en) * | 2001-05-02 | 2002-11-07 | Phillips Plastics Corporation | Composite particles |
| US20020185444A1 (en) * | 2001-05-18 | 2002-12-12 | The Regents Of The University Of California | Method of oil spill recovery using hydrophobic sol-gels and aerogels |
| WO2008060940A2 (en) * | 2006-11-10 | 2008-05-22 | New Jersey Institute Of Technology | Inverse fluidization for purifying fluid streams |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903292A (en) * | 2016-07-01 | 2016-08-31 | 山东新达能环保科技有限公司 | Oil drop filtering filler and high-efficient condensing oil gas recycling device |
| CN105903292B (en) * | 2016-07-01 | 2018-04-24 | 山东新达能环保科技有限公司 | A kind of oil droplet filter packing and high-efficiency condensation oil-gas recovery device |
| CN109626618A (en) * | 2018-12-27 | 2019-04-16 | 东北石油大学 | Recirculating fluidized bed oil water separator |
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| CN104383719B (en) | 2016-04-06 |
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Granted publication date: 20160406 Termination date: 20191201 |