RU2574918C2 - Device for oil and water separation, and systems for oil spills gathering including such device - Google Patents

Device for oil and water separation, and systems for oil spills gathering including such device Download PDF

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RU2574918C2
RU2574918C2 RU2013127644/02A RU2013127644A RU2574918C2 RU 2574918 C2 RU2574918 C2 RU 2574918C2 RU 2013127644/02 A RU2013127644/02 A RU 2013127644/02A RU 2013127644 A RU2013127644 A RU 2013127644A RU 2574918 C2 RU2574918 C2 RU 2574918C2
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oil
oleophilic
water
hydrophobic
device
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RU2013127644/02A
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Russian (ru)
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RU2013127644A (en
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Шенгьи ЦИНЬ
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Бейджинг Речсэнд Сайенс энд Текнолоджи Групп Ко., Лтд
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Priority to CN201010554391.3A priority patent/CN102462977B/en
Application filed by Бейджинг Речсэнд Сайенс энд Текнолоджи Групп Ко., Лтд filed Critical Бейджинг Речсэнд Сайенс энд Текнолоджи Групп Ко., Лтд
Priority to PCT/CN2011/076049 priority patent/WO2012065439A1/en
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Abstract

FIELD: oil and gas industry.
SUBSTANCE: invention relates to the device for oil and water separation. The device contains a chamber (2) for oil accumulation, enclosed by the wall (1), wherein at least part of the wall (1) surface is coated by the porous, oleophilic, and hydrophobic layer (3), that permits water and oil penetration through it. The device also contains a fixing layer (4) coating the surface of the porous, oleophilic, and hydrophobic layer (3), to limit dispersion of the porous, oleophilic, and hydrophobic layer, wherein the fixing layer (4) ensures water and oil penetration through it, wherein the diameter of pores of the said porous, oleophilic, and hydrophobic layer (3) is 300-850 mcm, and porosity is 10-40%. The oleophilic and hydrophobic layer (3) is cluster of silicone sand with applied coating, wherein sphericity of the silicone sand with the applied coating is at least 0.7, particles diameter is 300-850 micron, and density of the cluster is 1.4-1.65 g/cm3.
EFFECT: invention increases efficiency of the oil spills gathering, and is suitable for the oil spills gathering from large sea areas.
19 cl, 3 dwg, 1 tbl, 15 ex

Description

Technical field

This invention relates to a device for separating oil and water, as well as to a system for collecting floating oil, including this device.

State of the art

All over the world, oil is transported mainly by sea, while there is a serious danger of an oil spill due to aground, collision, impact on rocks and damage to the hull itself when the tanker is sailing. At the same time, more and more offshore drilling platforms and floating pipelines are being installed; however, there may be safety concerns for the environment or for their own design; this leads to oil spill accidents, resulting in large areas of floating oil in the sea. Thus, the negative impact of floating oil can be minimized through efficient methods for collecting floating oil and advanced devices for collecting floating oil.

Currently, the floating oil recovery device, which has the functions of collecting and refining, works only in the case of oil floating on water, with a small area and fewer liquids; but it is useless for processing when large quantities of floating oil, caused by the coup of a large and giant tanker or leakage from it, spread over a large surface of the sea. For example, existing oil reservoirs suck in oil and part of the water floating on the surface of the water using a floating pipe to draw in oil, based on the fact that water and oil have different densities; the oil-water mixture is directed, by means of a transfer pump, to a vortex type floating oil separator; the oil-water mixture is separated in a separator; floating oil is accumulated in a separator and discharged automatically; water that is separated from floating oil is returned to the sea with a return pump. For example, CN 2122860 U describes a reservoir for floating oil, consisting mainly of a water pump, an oil pump, a floating casing, and an open container. This floating oil manifold uses the difference in local water level, laminar flow rate and the principle of fluid viscosity to collect floating oil directly in water containing floating oil. As another example, CN 101565942 A describes an offshore marine type floating oil reservoir, the main structure of which consists of an air cushion, balancing blades and a control device at the inlet of floating oil. Floating oil enters through a control device at the inlet of the floating oil and passes through a fine mesh to filter out impurities floating on the surface of the sea; the mixture entering the oil and water separation tank is subjected to the oil and water separation process using the principle that floating oil and sea water have different densities. Floating oil, which must be separated, floats on the surface of the sea water, and the underlying layer of sea water is discharged through the outlet pipe; At this point, the oil pump is turned on to collect the floating oil and store it in an elastic oil bag. However, the existing technology has low collection efficiency of floating oil, and, therefore, it is not suitable for the collection of oil floating on a large surface of the sea.

SUMMARY OF THE INVENTION

The objective of the invention is to overcome the disadvantages that the existing device for collecting floating oil has a low collection efficiency of floating oil and is unsuitable for collecting floating oil from large areas of the sea surface; and providing a device for separating oil and water and a floating oil collection system comprising this device, which is highly efficient in collecting floating oil and is suitable for collecting floating oil from large sea surfaces.

The present invention provides a device for separating oil and water. The device includes a chamber for collecting oil, surrounded by a wall. At least part of the wall surface is covered with a porous, oleophilic and hydrophobic layer, which allows water and oil to penetrate through it. This device also includes a fixing layer covering the surface of the porous, oleophilic and hydrophobic layer, to limit the spreading of the porous, oleophilic and hydrophobic layer, and this fixing layer allows the penetration of water and oil. The pore diameter of the specified porous, oleophilic and hydrophobic layer is 300-850 μm, and the porosity is 10-40%.

The invention also provides a floating oil collection system, which includes at least one oil and water separation device, wherein said oil and water separation device is the oil and water separation device of the present invention.

In the device for separating oil and water, proposed in this invention, at least part of the surface of the wall surrounding the chamber for collecting oil, is covered with a porous, oleophilic and hydrophobic layer. Thus, after coming into contact with the oleophilic and hydrophobic layer, floating oil can flow into the voids between the silicon sand covered with the oleophilic and hydrophobic membrane, due to the low surface tension, and flow into the oil collection chamber through the through holes in the wall of the oil collection chamber coated with a porous, oleophilic and hydrophobic layer; while after being brought into contact with the oleophilic and hydrophobic layer, the water passage on the outside of the oleophilic and hydrophobic layer is essentially blocked due to the large surface tension in this layer; or only a small amount of water can penetrate, or even water cannot penetrate through this layer at all. Thus, the task of separating oil and water is completed. What is more unexpected, when using the floating oil collection system including the oil-water separation device of the present invention, it is possible to efficiently collect oil floating on a sea surface from a large area, and the efficiency of collecting floating oil can be substantially increased.

Description of drawings

Figure 1 is a diagram showing a partial sectional view of an oil and water separation apparatus according to this invention;

Figure 2 is a diagram showing a partial sectional view of an oil and water separation apparatus of the present invention;

Figure 3 is a diagram of a system for collecting floating oil according to this invention.

A specific method of implementing the present invention

According to the present invention, said oil and water separation apparatus includes an oil collection chamber 2 surrounded by a wall 1. At least a portion of the surface of the wall 1 is coated with a porous, oleophilic and hydrophobic layer 3; and a portion of said wall 1 covered with a porous, oleophilic and hydrophobic layer 3 allows water and oil to penetrate. The device also includes a fixing layer 4 located on the surface of the porous, oleophilic and hydrophobic layer 3 to limit the spillage of the porous, oleophilic and hydrophobic layer, and the fixing layer 4 allows the penetration of water and oil. The pore diameter of the specified porous, oleophilic and hydrophobic layer 3 is 300-850 microns, preferably 300-600 microns; porosity is 10-40%, preferably 20-35%. The indicated pore diameter can be measured using an electron microscope. The indicated porosity can be measured by mercury porosimetry. In detail, the method includes the following steps: mercury is pressed into a porous medium to replace air in voids; measuring the difference in mass of the sample before and after indentation of mercury to obtain a void volume; divide the void volume into the outer volume to obtain porosity.

When using the specified device for separating oil and water according to this invention, if the pressure drop across the oleophilic and hydrophobic layer is 0-20 kPa, the ratio of the volumetric flows of oil and water penetrating through the oleophilic and hydrophobic layer can reach 1.5-3: 1 .

As shown in FIG. 1, said oil and water separation device includes an oil collection chamber 2 surrounded by a wall 1. A part of the surface of the wall 1 is covered with a porous, oleophilic and hydrophobic layer 3; and a portion of said wall 1 covered with a porous, oleophilic and hydrophobic layer 3 allows water and oil to penetrate. The device also includes a fixing layer 4, covering the surface of the porous, oleophilic and hydrophobic layer 3, to limit the scattering of the porous, oleophilic and hydrophobic layer, and the fixing layer 4 allows the penetration of water and oil.

Preferably, in order to increase the efficiency of oil collection, the entire surface of said wall 1 is covered with a porous, oleophilic and hydrophobic layer 3.

According to the invention, said wall 1 surrounding an oil collection chamber 2 and said fixing layer 4 can have various shapes and consist of various materials (e.g. plastics) that allow water and oil to penetrate to collect floating oil and limit spillage the specified porous, oleophilic and hydrophobic layer. Preferably, both the wall 1 and the fixing layer 4 are flat. There are many tools that allow the penetration of water and oil. Preferably, the fixing layer 4 and a part of said wall 1 coated with a porous, oleophilic and hydrophobic layer 3 have a plurality of through holes 9 and 8, so that the fixing layer 4 and a part of said wall 1 that is covered with a porous, oleophilic and hydrophobic layer 3 can allow penetration water and oil through these through holes 9 and 8. Although a portion of said wall 1 covered with a porous, oleophilic and hydrophobic layer 3 allows water and oil to penetrate, only oil can easily pass through said porous, oleophilic and hydro the other layer and said wall 1 and enter the oil collection chamber, and water penetration will be prevented, or only a small amount of water will be able to penetrate the specified porous oleophilic and hydrophobic layer to reach the surface of wall 1 and pass through wall 1 into the oil collection chamber since this porous oleophilic and hydrophobic layer has oleophilic and hydrophobic properties. In order to facilitate the smooth and fast penetration of water and oil through the fixing layer in order to contact the porous, oleophilic and hydrophobic layer, so that the oil can quickly enter the oil collection chamber through wall 1, on the fixing layer 4 and part of said wall 1 covered with a porous, oleophilic and hydrophobic layer 3, said through holes 9 and 8 are evenly spaced. According to the above embodiment, a chamber 5 for separating water and oil is preferably formed between the wall 1 and the fixing layer 4. eat porous, oleophilic and hydrophobic layer 3 fills the inside of the chamber 5 for the separation of oil and water, to further facilitate the separation of oil and water and oil collection. In addition, the shape of the fixing layer may correspond to the shape of the oil collection chamber, so that the oil and water separation chamber 5 follows the shape of the oil collection chamber 2.

According to the present invention, the oil collection chamber 2 may have a different shape adapted to collect oil floating on the water surface, for example, the shape of a sphere, cylinder or cone. The volume of the oil collection chamber in the oil and water separation apparatus can be selected depending on the surface area of the water. Typically, the volume of the oil collection chamber 2 may be 50-100 ml.

As shown in FIG. 2, said oil and water separation apparatus comprises an oil collection chamber 2 surrounded by a wall 1. The entire surface of the wall 1 of the oil collection chamber 2 is coated with a porous, oleophilic and hydrophobic layer 3, and the wall 1 of the oil collection chamber 2 is coated with a porous, oleophilic and hydrophobic layer 3, has many evenly spaced through holes 8. The fixing layer 4 is located on the surface of the porous, oleophilic and hydrophobic layer 3 to limit the scattering of the porous, oleophilic and hydrophobic layer 3, and on the fixing layer 4, a plurality of through holes 9 are evenly spaced. The wall 1 of the oil collection chamber 2 and the fixing layer 4 together form a separation chamber 5.

According to the present invention, preferably said oil and water separation device comprises a pipe connected to the oil collection chamber 2. Floating oil stored in the oil collection chamber 2 can be removed and collected accordingly without first using this device to separate oil and water.

According to the invention, said porous, oleophilic and hydrophobic layer 3 may consist of layers of various porous materials with oleophilic and hydrophobic properties. Preferably, in order to further improve the effect of the separation of oil and water when filtering floating oil, said oleophilic and hydrophobic layer 3 is a collection of coated silicon sand particles. According to the invention, said coated silicon sand may be various silicon sands with oleophilic and hydrophobic properties that allow oil to flow into the voids between the coated silicon sand particles and pass between them, while at the same time holding water outside the silicon sand with applied coating. Preferably, said silicon sand in this application is silicon sand with a surface on which a coating layer is applied. The specified silicon sand with a surface on which the coating layer is applied is obtained by mixing silicon sand with an oleophilic and hydrophobic resin, followed by curing.

According to this invention, said through holes 8 in said wall 1 of an oil collection chamber 2, coated with a porous, oleophilic and hydrophobic layer 3 and a fixing layer 4, are arranged to facilitate the passage of floating oil into said oil and water separation device, and finally inside the chamber 2 for collecting oil. In order to prevent entrained silicon sand from floating oil and the penetration of said coated silicon sand, together with the stream, into the oil collecting chamber 2 through the through holes 8 of the oil collecting chamber, and to prevent the silicon coated sand from spilling out through the through holes 9 in the fixing layer 4, which affects the effect of oil and water separation, the diameter of the above through pores (including through holes 8 in the wall 1 of the chamber 2 for collecting oil, which is covered with por fifth, oleophilic and hydrophobic layer, and through-holes 9 in the fixing layer 4) is preferably less than the average particle diameter of said silica sand coated with (and more preferably - less than this value). For example, the diameter of these through holes 8 and 9 may be 100-400 microns.

The closer the shape of said silicon coated sand is to spherical, the more likely it is to guarantee that the diameter of the voids in the coated silicon sand will be smaller and more uniform to further improve the effect of oil penetration. Thus, the sphericity of said coated silicon sand is at least 0.7, preferably 0.7-0.95. The term "sphericity" means a measure of the relative sharpness of the outlines, or the curvature of the edges and angles of a particle, and it also means the degree to which the shape of the particle approaches the spherical one. A method for measuring sphericity is well known to those skilled in the art. For example, you can use the correction table method to measure it. The particle diameter of the specified coated silicon sand is 300-850 μm. The density of accumulations (accumulation density) is 1.4-1.65%, preferably 1.4-1.5%.

In accordance with this invention, the thickness of said porous, oleophilic and hydrophobic layer 3 can be selected in accordance with the amount of oil floating on the water to be collected. If the floating oil layer is thinner, the thickness of the accumulation of silicon sand with a coating forming a porous, oleophilic and hydrophobic layer 3 will be, respectively, less. If the floating oil layer is thicker, then the thickness of the accumulation of silicon sand with the coating, forming a porous, oleophilic and hydrophobic layer 3, respectively, will be greater. In general, the thickness of said porous, oleophilic and hydrophobic layer 3 may be 5-50 mm, preferably 10-30 mm.

According to this invention, the range of mass ratios of said oleophilic and hydrophobic resin to said silicon sand, which can be selected, is relatively wide. Preferably, the amount of oleophilic and hydrophobic resin constitutes a coating layer with a thickness of 0.1-10 microns, more preferably 1-5 microns. Thus, the mass ratio of oleophilic and hydrophobic resin to silicon sand can be 0.2-15: 100.

According to this invention, said oleophilic and hydrophobic resin may be various oleophilic and hydrophobic resins. Said oleophilic and hydrophobic resin may preferably be one or more resins selected from oleophilic and hydrophobic epoxy resins, oleophilic and hydrophobic phenolic resins, oleophilic and hydrophobic polyurethane resins and oleophilic and hydrophobic organosilicon resins.

More preferably, said oleophilic and hydrophobic resin is at least two resins selected from an oleophilic and hydrophobic epoxy resin, an oleophilic and hydrophobic phenolic resin, an oleophilic and hydrophobic polyurethane resin and an oleophilic and hydrophobic organosilicon resin; this gives the best oleophilic and hydrophobic properties. It is further preferred that the mass ratio between any two oleophilic and hydrophobic resins can be 1: 0.1-10.

In particular, said oleophilic and hydrophobic epoxy resin may be one or more resins selected from an epoxy resin such as glycidyl ether, an epoxy resin such as glycidyl ether, an epoxy resin such as glycidylamine, an epoxy resin of linear aliphatic type, an epicyclic type epoxy resin polysulfide-modified epoxy resin, polyamide-modified epoxy resin, t-butyrene-modified epoxy resin icedehyde, nitrile rubber modified epoxy, phenolic modified epoxy, polyester modified epoxy, melamine urea formaldehyde modified epoxy, furfural modified epoxy, vinylated resin modified epoxy and an epoxy resin modified with an organosilicon resin.

The specified oleophilic and hydrophobic phenolic resin may be one or two resins selected from a phenolic resin modified with dimethylbenzene; epoxy modified phenolic resin; and a phenolic resin modified with an organosilicon compound.

Said oleophilic and hydrophobic polyurethane resin may be a polyurethane resin derived from one or more resins selected from oligomeric polyhydric alcohols, for example, organic polyisocyanate, polyester (simple), polyester (complex), and the like.

Said oleophilic and hydrophobic organosilicon resin may be one or more resins selected from methyltrichlorosilane, dimethyldichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane and methylphenyldichlorosilane.

According to the present invention, the method for curing an oleophilic and hydrophobic resin can be various conventional methods, for example, curing using a curing agent or direct photocuring. The types of curing agent used for curing can be various curing agents for curing the oleophilic and hydrophobic resins, which are well known in the art, and the range of typically used controlled amounts of curing agent can be relatively wide. For example, the mass ratio of the specified curing agent to the specified oleophilic and hydrophobic resin may be 1-25: 100.

The curing agent for said oleophilic and hydrophobic epoxy resin may be one or more selected from an aliphatic amine, an alicyclic amine, an aromatic amine and its modifications, a polyamide, anhydride, a tertiary amine and its salt, paraformaldehyde, imidazole, prepolymer, acyl formaldehydes, acyl peroxide, pitches.

The curing agent for said oleophilic and hydrophobic phenolic resin may be hexamethylenetetramine.

The curing agent for said oleophilic and hydrophobic polyurethane resin may be one or more selected from the addition products of toluene diisocyanate (TDI) and trimethylolpropane (TMP); a prepolymer of toluene diisocyanate (TDI) and hydroxyl-containing components, as well as a triple polymer of a one-component curing agent in a humid environment and toluene diisocyanate (TDI).

The curing agent for said oleophilic and hydrophobic organosilicon resin may be dibutyltin dilaurate and / or N, N, N ', N'-tetramethylguanidine.

According to this invention, in order to further improve the oleophilic and hydrophobic properties of the coating layer, silicon sand with a surface on which the coating layer is applied can be obtained by mixing silicon sand with an oleophilic and hydrophobic resin, plasticizer and / or lubricant, followed by curing of the obtained mixtures.

According to this invention, the commonly used amount of plasticizer is well known in the art. Plasticizers are mainly used to reduce the elastic modulus and tensile strength, to improve elasticity, reversible flexural strength, strength and toughness, to lower the glass transition temperature, to expand the possibility of using the polymer at lower temperatures, to improve bonding with various materials basics, etc. The mass ratio of the specified plasticizer to the specified oleophilic and hydrophobic resin may be 5-25: 100. Said plasticizer may preferably be one or more selected from phthalic acid ester, aliphatic acid ester and phosphoric ester. The indicated phthalic acid ester may be dimethyl phthalate. The specified aliphatic acid ester may be one or more esters selected from diglycol formate, ethylene formate and diethylene glycol formate. Said phosphoric acid ester may be one or more selected from triaryl phosphate, triisopropyl phenyl phosphate (IPPF) and phenyl phosphoric ester.

According to this invention, the commonly used amount of lubricant is well known in the art. A lubricant is generally used to improve lubricity, to reduce friction and static electricity, and to improve surface gloss and appearance. The mass ratio of the specified lubricant to the specified oleophilic and hydrophobic resin may be 1-10: 100. The specified lubricant may be one or more selected from low molecular weight polyethylene, oxidized low molecular weight polyethylene, octadecanamide, calcium stearate, zinc stearate and ethylene bis stearamide.

According to the invention, conditions under which silicon sand, an oleophilic and hydrophobic resin and possibly a plasticizer and / or lubricant are mixed and cured may be common in the industry. For example, you can first heat the particles of silicon sand to a temperature of 50-400 ° C, preferably to 100-240 ° C; then mix the heated silicon sand with an oleophilic and hydrophobic resin, possibly a plasticizer and / or lubricant, and mix the mixture until smooth. There are no specific requirements for the mixing temperature as long as it allows said oleophilic and hydrophobic resin to uniformly adhere to the surface of silicon sand particles. The mixing time is preferably 1-10 minutes. Curing conditions may be as follows: the curing temperature may be 20-150 ° C, the curing time may be 0.1-24 hours, and the humidity during curing may be 5-35%.

The sequence of adding said oleophilic and hydrophobic resin, plasticizer and lubricant does not substantially affect the properties of the coated silicon sand obtained in this invention. For example, an oleophilic and hydrophobic resin, a plasticizer and a lubricant can be added at the same time to mix them with silicon sand. Alternatively, the oleophilic and hydrophobic resin, plasticizer and lubricant may be added at various stages. For example, you can first mix the oleophilic and hydrophobic resin with silicon sand, and then mix with a plasticizer and / or lubricant.

Preferably, the coated silicon sand can also be obtained by cooling, crushing, and sieving in order to control the diameter of its particles. There are no special requirements for cooling conditions, but it is preferably cooled to room temperature. In addition, conventional crushing and sieving methods can be used to obtain coated silicon sand having a particle diameter of this invention.

In addition, the invention provides a floating oil collection system. The specified system includes at least one device for separating oil and water, which is a device for separating oil and water according to this invention.

Preferably, there may be a plurality of said oil and water separation devices, which are preferably uniformly located on the surface of the water containing the floating oil, so that floating oil can be collected on a larger surface of the water, even on the sea surface, to increase the collection efficiency. Many devices for separating oil and water can be fixed by means of flexible joints. For example, to connect multiple devices for the separation of oil and water and evenly distribute them on the surface of the water, you can use steel wire, a connection in the form of a thin spring and a thin cable.

Preferably, said floating oil collection system may further comprise a pump and a pipe for connecting a pump and an oil collecting chamber of each of the oil and water separation devices to simultaneously pump the collected floating oil.

Preferably, said floating oil collection system may further include an oil storage device to store floating oil from the pump.

Preferably, said floating oil collection system may further include a shell enclosing an oil storage device.

According to this invention, a method for collecting oil floating on a water surface using said floating oil collecting system according to this invention may include the following steps: arranging said oil and water separation device according to this invention on a surface of water containing floating oil so that at least part of the surface of the fixing layer 4, which covers the surface of the porous, oleophilic and hydrophobic layer 3 to limit the scattering of this porous, oleophilic and hydrophobic layer, ontaktirovala with the water surface, comprising a floating oil; and collecting floating oil inside the oil collection chamber.

According to the method of this invention, said oil and water separation device is located on the surface of water containing floating oil, and it is necessary to make at least a portion, preferably 30-80%, of the surface of the fixing layer 4, which covers the surface of the porous, oleophilic and hydrophobic layer 3 to limit the scattering of this porous, oleophilic and hydrophobic layer, was in contact with the surface of the water containing floating oil so that the oil-water mixture entered the chamber for separation of oil and water through the holes 9 in the fixing layer 4 and was in contact with the porous, oleophilic and hydrophobic layer 3 below it to achieve effective collection of floating oil. Preferably, the entire surface of said wall 1 is coated with a porous, oleophilic and hydrophobic layer 3. In order to absorb floating oil more efficiently, it is preferable that 30-80% of the volume of said oil and water separation device is under the surface of the water (immersed in water), containing floating oil.

This invention does not impose specific requirements on the method of arranging a device for separating oil and water on the surface of water containing floating oil; You can apply various conventional methods. For example, said oil and water separation device may float on a surface of water containing floating oil using a buoyancy supporting device, or said oil and water separation device may be suspended above a surface of water containing floating oil.

Preferably, said method for collecting oil floating on a water surface may further include moving the floating oil within each oil storage chamber to a storage unit for storing floating oil. For example, a method of moving floating oil located inside each oil collection chamber to a storage unit includes arranging a pipe connected to each oil storage chamber and introducing floating oil located inside each oil collection chamber to the storage unit through this pipe. In particular, a pipe connected to each oil collection chamber is connected to a pump. Floating oil is pumped from each oil collection chamber and introduced into the storage unit by means of said pump. In addition, this method may further include moving the storage unit loaded with floating oil. For example, a casing may be used as a storage unit to facilitate transportation.

Turning now to FIG. 3; a method for collecting floating oil by using the floating oil collecting system of the present invention is illustrated. The specified system for collecting floating oil includes a shell 10, a device 11 for storing oil, placed on this shell; a pump 12, a pipe 14 for connecting the pump 12 to the oil storage chamber of the oil and water separation device 13. The specified method of collecting oil floating on the surface of the water includes the step of placing the device 13 for separating oil and water on the surface of the water containing the floating oil layer 6, so that the specified device 13 for separating oil and water floats on the surface of the water. The specified device for the separation of oil and water includes a chamber for the accumulation of oil, surrounded by a wall. The entire surface of the wall forming the chamber for the accumulation of oil is covered with a porous, oleophilic and hydrophobic layer (preferably 30-80% of the volume of the specified device for separating oil and water is located below the surface of the water containing floating oil). A plurality of through holes are evenly distributed over the wall of the oil storage chamber coated with a porous, oleophilic and hydrophobic layer. The surface of the porous, oleophilic and hydrophobic layer is coated with a fixing layer, to limit the spreading of the porous, oleophilic and hydrophobic layer, and a plurality of through holes are evenly distributed over this fixing layer. The fixing layer and the wall of the specified chamber for the accumulation of oil form a separation chamber. The specified porous, oleophilic and hydrophobic layer is an accumulation of silicon sand with a coating that fills the inner part of the separation chamber. After the collection period, pump 12 is started to pump the floating oil collected inside the oil storage chamber of the oil and water separation device 13 through a pipe 14; and the collected floating oil is stored in the oil storage device 11.

The invention will be further described in detail in conjunction with specific embodiments.

In further exemplary embodiments, silica sand may be purchased from Yong Deng Blue Sky Quartz Sand Co., Ltd.

Manufacturers and brands of oleophilic and hydrophobic resins, curing agents and plasticizers may be as follows:

Polyamide Resin Modified Epoxy: Flagship Fine Chemicals Co., Ltd (Fuqing).

Polyvinyl-tert-butyraldehyde Modified Epoxy: Shengquan Chemical Industry Co., Ltd (Shandong).

Dimethylbenzene Modified Epoxy: Shengquan Chemical Industry Co., Ltd (Shandong).

Organosilicon resin: Dow Corning (USA).

Polyurethane Resin: Shengquan Chemical Industry Co., Ltd (Shandong).

Polytetrafluoroethylene: Qinairun Industry and Trade Co., Ltd (Shanghai).

Polydimethylsiloxane: Dow Corning (USA).

Aliphatic amine as a curing agent: Tianxing Thermal Insulation Materials Co., Ltd (Jiangyin).

Polyamide as a curing agent: Flagship Fine Chemicals Co., Ltd (Fuqing).

Hexamethylene tetramine as a curing agent: Tianxing Thermal Insulation Materials Co., Ltd (Jiangyin).

Diol Butyl Dilaurate: Yuanji Chemical Industry Co., Ltd (Shanghai).

TDI Triple Polymer: Bogao Coating Factory (Leliu Town, Shunde City).

Dimethylphthalate (DMF) as a plasticizer: Liantai Chemical Industry Co., Ltd (Shandong).

Low molecular weight polyethylene as a lubricant: Huada Tianrong New Material Technology Co., Ltd (Beijing).

Methods for determining the efficiency of oil absorption in the following embodiments refer to Technology Research on Oily Sludge Benzinum Extraction, Journal of Safety and Environment, vol. 8, Stage 1, February 2008.

A particular test method is Soxhlet extraction with UV spectrophotometry.

Oil and petroleum products have a distinctive feature - absorption in the ultraviolet region. Aromatic compounds with a benzene ring absorb mainly at a wavelength of 250-260 nm. Compounds with conjugated double bonds absorb mainly at a wavelength of 215-230 nm. In order to avoid interference from other factors, a method for absorbing UV radiation is often used at two wavelengths. Typically, the two main absorption wavelengths of crude oil are 225 and 254 nm. As for petroleum products, the peak absorption of fuel oil, lubricants, etc. close to peak absorption of crude oil. Thus, the choice of wavelength should depend on the particular case. A wavelength of 254 nm can be selected for crude oil and heavy oil, while a wavelength of 225 nm can be selected for light oil and petroleum products obtained at the refinery.

In the Soxhlet extraction method using UV spectrophotometry, a Soxhlet extractor is used to extract crude oil from oil sludge by circulating irrigation for six hours. As an extractant, gasoline or a mixture of heptanes is used. The oil content is measured at two wavelengths using a UV spectrophotometer.

Solution preparation

(1) Standard oil: oil products are extracted from a sample of oil sludge using gasoline at a temperature of 30-60 ° C, which was subjected to dearomatization and re-distillation; then the oil is filtered after dehydration with anhydrous sodium sulfate. Filtered liquids are placed in a thermostat with a temperature of 65 ° C to remove the remaining gasoline; after which standard oil is received.

(2) Stock solution of standard oil: 0.1 g of standard oil, accurately weighed, is dissolved in gasoline; the mixed solution is transferred to a 100 ml volumetric flask and diluted to the mark, and then stored in the refrigerator. This solution contains oil at a concentration of 1.00 mg per ml.

(3) Working solution of standard oil: the above stock solution of standard oil is diluted with gasoline 10 times; this diluted solution contains oil at a concentration of 0.1 mg per ml.

(4) Dearomatized gasoline (fraction 60-90 ° C).

Preparation of dearomatized gasoline: silica gel microspheres with a particle diameter of 60-100 mesh and neutral alumina for chromatography with a particle diameter of 70-120 mesh are placed in a glass column with an inner diameter of 25 mm and a height of 750 mm using column chromatography 150-160 ° C for 4 hours), before complete cooling. The bottom layer of silica gel has a height of 600 mm, and alumina, with a thickness of 50 mm, is located on top of it; then dearomatization of commercially available gasoline is carried out (fraction 60-90 ° C), passing it through this column. When measuring the transmittance of processed gasoline (which should be at least 80%, in the position corresponding to the 225 nm mark on a UV spectrophotometer), water is used for comparison.

Building a calibration curve

Working solutions of standard oil with volumes of 0, 2.00, 4.00, 8.00, 12.00, 20.00 and 25.00 ml are added, respectively, in seven volumetric flasks with a volume of 70 ml, and diluted to the mark using gasoline (60-90 ° C). Measurements are taken at the position corresponding to the 254 nm line on a UV spectrophotometer; for comparison, a 1 cm quartz cuvette is used; Based on the measurements, a calibration curve is built.

Measurement on a sample of oil sludge

(1) 20 g of a sample of oil sludge previously dehydrated at 105 ° C is wrapped with filter paper and then placed in a Soxhlet extractor; in a round-bottom flask, on 1 / 2-1 / 3 of its volume, add gasoline and conduct condensation during reflux for six hours.

(2) The remaining substance is dissolved in dearomatized gasoline, and then this mixed solution is transferred to a 100 ml volumetric flask and diluted to a constant volume; determination of the absorption coefficient of a sample of oil sludge is carried out under the same conditions as in the case of a standard sample.

(3) The oil content can be found from the calibration curve by which the oil content is calculated.

Preparation Example 1

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

After heating to 250 ° C, 3 kg of quartz sand particles (with a density of 1.65 g / cm 3 ) with an average diameter of 0.4 mm are placed in a sand mixer for mixing, after which they are cooled to 200 ° C; then 0.15 kg of the polyamide resin modified epoxy is added to it to mix sufficiently to uniformly distribute the resin over the outer surface of the silica sand particle; then, to conduct curing, an aliphatic amine (with a curing agent to resin mass ratio of 2: 100) is added as a curing agent, and the cured particles are finally cooled to room temperature and crushed to obtain coated silicon sand (coating thickness layer is 1-2 micrometers). The sphericity of the obtained coated silicon sand is 0.72, and the particle diameter distribution is 320-450 μm.

Preparation Example 2

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

Coated particles are prepared in the same manner as in Preparation Example 1 (except) that dimethyl phthalate (DMF) is added as a plasticizer before the curing agent is added. The mass ratio of plasticizer to resin is 10: 100. After sufficiently mixing, the thickness of the coating layer of the obtained coated silicon sand is 2-3 μm. The sphericity of the coated silicon sand is 0.75, and the particle diameter distribution is 350-430 microns.

Preparation Example 3

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

Coated particles are prepared in the same manner as in Preparation Example 1, except that low molecular weight polyethylene is added as a lubricant before the resin begins to cure and combine into a block. The mass ratio of lubricant to resin is 2: 100. After sufficient mixing, the thickness of the coating layer of the obtained silicon sand coated is 0.5-1 μm. The sphericity of the coated silicon sand is 0.78, and the particle diameter distribution is 380-420 μm.

Preparation Example 4

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

The coated particles are obtained in the same manner as in Preparation Example 1, except that the mass ratio of the polyamide resin modified epoxy resin to the silicon sand particles is 0.5: 100. The coating layer thickness of the obtained coated silicon sand is 0.1-0.5 microns. The sphericity of the coated silicon sand is 0.73 and the particle diameter is 350-430 microns.

Preparation Example 5

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

Coated particles are obtained in the same manner as in Preparation Example 1, except that the mass ratio of the polyamide resin modified epoxy resin to the silicon sand particles is 12: 100. The thickness of the coating layer of the obtained silicon sand coated is 4-5 microns. The sphericity of the coated silicon sand is 0.75, and the particle diameter is 360-450 microns.

Preparation Example 6

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

2 kg of particles of silicon sand with an average diameter of 0.4 mm are heated to 400 ° C; 0.04 kg of an epoxy resin modified with polyvinyl-tert-butyraldehyde are added thereto and mixed sufficiently to evenly distribute the resin on the outer surface of the silicon sand particles; then add a polyamide resin (with a mass ratio of curing agent to resin 5: 100) as a curing agent, to conduct curing, so that the surface of the particles of silicon sand was coated with a deposited layer of resin; followed by cooling to room temperature, crushing and sieving to obtain coated silicon sand (coating layer thickness is 1-2 micrometers). The sphericity of the obtained coated silicon sand is 0.75, and the particle diameter is 320-450 microns.

Preparation Example 7

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

5 kg of silicon sand with an average diameter of 0.8 mm are heated to 100 ° C; then 0.3 kg of phenolic resin modified with dimethylbenzene, together with hexamethylenetetramine, is added as a curing agent (with a mass ratio of curing agent to resin of 12: 100) to mix them sufficiently and evenly distribute the resin and curing agent on the outer surface of the silicon sand; followed by cooling to room temperature, crushing and sieving, to obtain oleophilic and hydrophobic particles coated. The thickness of the coating layer of the obtained silicon sand coated is 5-6 microns. The sphericity of the coated silicon sand is 0.72 and the particle diameter is 750-825 μm.

Preparation Example 8

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

Coated particles are prepared in the same manner as in Preparation Example 1, except that instead of using an epoxy resin modified with a polyamide resin, an organosilicon resin is used and dibutyltin dilaurate is used as a curing agent. The thickness of the coating layer of the obtained silicon sand coated is 1-2 μm. The sphericity of the coated silicon sand is 0.75, and the particle diameter is 320-450 microns.

Preparation Example 9

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

Coated particles are prepared in the same manner as in Preparation Example 1, except that instead of using an epoxy resin modified with a polyamide resin, a polyurethane resin is used and a triple TDI polymer is used as a curing agent. The thickness of the coating layer of the obtained silicon sand coated is 1-2 μm. The sphericity of the coated silicon sand is 0.73 and the particle diameter is 320-450 μm.

Preparation Example 10

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

Coated particles are obtained in the same manner as in Preparation Example 1, except that polytetrafluoroethylene is used instead of the epoxy resin modified with a polyamide resin and no curing agent is used. The thickness of the coating layer of the obtained silicon sand coated is 1-2 μm. The sphericity of the coated silicon sand is 0.71, and the particle diameter is 320-450 μm.

Preparation Example 11

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

Coated particles are prepared in the same manner as in Preparation Example 1, except that instead of using an epoxy resin modified with a polyamide resin, polydimethylsiloxane is used and no curing agent is used. The thickness of the coating layer of the obtained silicon sand coated is 1-2 μm. The sphericity of the coated silicon sand is 0.73 and the particle diameter is 320-450 μm.

Preparation Example 12

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

The coated particles are obtained in the same manner as in Preparation Example 1, except that instead of 3 kg of the polyamide-modified epoxy resin, 2 kg of the polyamide-modified epoxy resin and 1 kg of the polyvinyl-modified epoxy resin are used tert-butyraldehyde. The thickness of the coating layer of the obtained silicon sand coated is 1-2 μm. The sphericity of the coated silicon sand is 0.75, and the particle diameter is 320-450 microns.

Preparation Example 13

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

Coated particles are obtained in the same manner as in Preparation Example 1, except that instead of using an epoxy resin modified with a polyamide resin, 0.5 kg of an epoxy resin modified with polyvinyl tert-butyraldehyde and 2.5 kg of phenolic are used resin modified with dimethylbenzene and the fact that polyamide (with a mass ratio of polyamide to epoxy modified with polyvinyl tert-butyraldehyde of 5: 100) and hexamethylenetetramine (with a mass Ocean hexamethylenetetramine to phenolic resin modified dimethylbenzene, is 5: 100). The thickness of the coating layer of the obtained silicon sand coated is 1-2 μm. The sphericity of the coated silicon sand is 0.78, and the particle diameter is 320-450 μm.

Preparation Example 14

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

The coated particles are obtained in the same manner as in Preparation Example 1, except that instead of using an epoxy resin modified with a polyamide resin, 0.5 kg of an epoxy resin modified with polyvinyl tert-butyraldehyde and 1.5 kg of phenolic resin are used modified with dimethylbenzene and 1 kg of organosilicon resin, and the use of polyamide as curing agents (with a weight ratio of polyamide to epoxy modified with polyvinyl-tert-butyraldehyde of 5: 100); hexamethylenetetramine (with a mass ratio of hexamethylenetetramine to phenolic resin modified with dimethylbenzene of 5: 100) and dibutyltin dilaurate (with a mass ratio of dibutyltin dilaurate to organosilicon of 5: 100). The thickness of the coating layer of the obtained silicon sand coated is 1-2 μm. The sphericity of the coated silicon sand is 0.82, and the particle diameter is 320-450 microns.

Preparation Example 15

This embodiment is used to describe the preparation of coated silicon sand with a surface onto which an oleophilic and hydrophobic film of the present invention is applied.

Coated particles are obtained in the same manner as in Preparation Example 1, except that instead of using an epoxy resin modified with a polyamide resin, 1.5 kg of an epoxy modified with polyvinyl tert-butyraldehyde and 1.5 kg of polyurethane resin are used ; and the fact that polyamide (with a mass ratio of polyamide to epoxy modified with polyvinyl-tert-butyraldehyde of 5: 100) and a triple TDI polymer (with a mass ratio of triple polymer TDI to polyurethane resin of 5: 100 are used as curing agents) ) The thickness of the coating layer of the obtained silicon sand coated is 1-2 μm. The sphericity of the coated silicon sand is 0.78, and the particle diameter is 320-450 μm.

An example of embodiment 1-15

This embodiment is used to illustrate the preparation of the oil and water separation apparatus of the present invention.

A spherical chamber for the accumulation of oil with a volume of 50 ml (it is made of PC polycarbonate material, and at the top of the chamber for the accumulation of oil there is an opening for oil connected to the pipes) is placed inside another spherical chamber (it is made of polycarbonate material); and the space between the wall of the oil collection chamber and the wall of another spherical chamber is filled with coated silicon sand (about 30 ml) obtained according to preparation examples 1-15, to obtain a porous, oleophilic and hydrophobic layer; the wall of said other spherical chamber is used to fix the coated silicon sand between the walls to obtain said porous, oleophilic and hydrophobic layer covering the wall of said chamber for oil accumulation; while the wall of the specified chamber for the accumulation of oil, and the wall of another spherical chamber have many evenly distributed through holes. The thickness of the specified porous, oleophilic and hydrophobic layer, the diameter of the holes in the wall of the specified chamber for the accumulation of oil and other spherical chambers, as well as the porosity, diameter of the holes and the cluster density of the specified porous, oleophilic and hydrophobic layer are shown in Table 1 below.

A system for collecting floating oil is used to collect oil floating on a water surface. Said floating oil collection system includes a shell, an oil storage device housed in the shell, a pump and a pipe for connecting the pump to the oil storage chamber of the oil and water separation device. The specified method of collecting oil floating on the surface of the water includes the following steps: connecting 20 devices for separating oil and water provided in the above embodiment, using steel wires; the placement of these systems for separating oil and water on the surface of the water containing a layer of floating oil (each device for separating oil and water is located at a distance of 15-20 cm from each other; 40-50% of the volume of each device for separating oil and water is below the surface water containing floating oil) (floating oil floats on the surface of the water in an amount of 1 liter per square meter, and the density of floating oil is 0.7-0.8 g / cm 3 ); actuating the pump after collecting for 2.5 hours, and discharging the floating oil collected in the oil storage chamber of the oil and water separation device into the oil storage device, and storing it there; oil absorption rate is shown in Table 1.

An example of embodiment 16

This embodiment is used to illustrate the preparation of the oil and water separation apparatus of the present invention.

A 100 ml cubic body is used as an oil storage chamber (it is made of PC polycarbonate material, and an oil hole connected to the pipe is made on the side of the oil storage chamber); on the part of the surface of the oil storage chamber, silicon sand is deposited, obtained according to example 1, in order to form a porous, oleophilic and hydrophobic layer. The porosity of the porous, oleophilic and hydrophobic layer is 35%; the diameter of the holes is 480 microns; the cluster density is 1.48 g / cm 3 and the thickness is 30 mm; a fixing layer is formed on the surface of said porous, oleophilic and hydrophobic layer to limit the spillage of said porous, oleophilic and hydrophobic layer; and a plurality of through holes are evenly distributed over the surface of the fixing layer (hole diameter 300 μm); the upper surface of the specified chamber for the accumulation of oil and the fixing layer together form a chamber for the separation of oil and water; and the inside of said oil and water separation chamber is filled with a porous, oleophilic and hydrophobic layer (the filling volume with coated silicon sand is about 30 ml). The wall of the upper surface of the specified chamber for the accumulation of oil has many through holes (the diameter of the through hole is 300 μm). Floating oil is collected in accordance with the method of Embodiments 1-15, except that 80% of the surface of the fixing layer covering the surface of the porous, oleophilic and hydrophobic layer to limit the dispersion of the porous, oleophilic and hydrophobic layer is in contact with the surface of the water containing the floating oil ; oil absorption rate is shown in Table 1.

Table 1 No. of an example embodiment The thickness of the porous oleophilic and hydrophobic layer (mm) Through Hole Diameter (mm) The porosity of the porous oleophilic and hydrophobic layer (%) The particle diameter of the porous oleophilic and hydrophobic layer (mm) The density of accumulations of the porous, oleophilic and hydrophobic layer (g / cm 3 ) Oil absorption rate (%) Incarnation 1 twenty 0.3 twenty 0.45 1,56 60 Incarnation 2 twenty 0.3 25 0.48 1,58 65 Embodiment 3 twenty 0.3 thirty 0.52 1,57 67 Embodiment 4 twenty 0.3 22 0.46 1,60 62 Embodiment 5 twenty 0.3 21 0.45 1.48 61 Embodiment 6 twenty 0.3 25 0.48 1,59 62 Incarnation 7 twenty 0.3 twenty 0.47 1,53 75 Embodiment 8 twenty 0.3 28 0.55 1,56 65 Embodiment 9 twenty 0.3 26 0.50 1.55 70 Embodiment 10 twenty 0.3 twenty 0.47 1,53 72 Incarnation 11 twenty 0.3 twenty 0.44 1.55 70 Embodiment 12 twenty 0.3 35 0.58 1,52 82 Embodiment 13 twenty 0.3 32 0.56 1,53 81 Embodiment 14 twenty 0.3 38 0.58 1,58 85 Embodiment 15 twenty 0.3 31 0.56 1.55 80 Embodiment 16 thirty 0.3 35 0.48 1.48 78

(Since the pressure drop across the porous, oleophilic and hydrophobic layer is in the range of 0-20 kPa, the ratio of the volumetric flow rate of oil and water that penetrate the porous, oleophilic and hydrophobic layer is 1.5-3: 1).

The oil absorption rate is the percentage of oil in the oil-water mixture collected in the oil storage chamber. Oil absorption is generally represented by the ability of the oleophilic and hydrophobic layer in said oil collecting device of the present invention to pass oil and prevent water from entering; the better this effect of the oleophilic and hydrophobic layer with respect to the transmission of oil and water retention, the higher the absorption rate.

After uptake of floating oil for 2.5 hours, in accordance with the method of Examples 1-15, the remaining floating oil per square meter is only 1-2% of the volume of oil floating on the surface of the water before collection. After absorbing floating oil for 2.5 hours according to the method of embodiment 16, the remaining floating oil per square meter is only 2% of the volume of oil floating on the surface of the water before collection.

Claims (19)

1. A device for separating oil and water, characterized in that it includes a chamber (2) for the accumulation of oil, surrounded by a wall (1), and at least part of the surface of the wall (1) is covered with a porous, oleophilic and hydrophobic layer (3), which allows water and oil to penetrate through it, while it also includes a fixing layer (4) covering the surface of the porous, oleophilic and hydrophobic layer (3), to limit the spillage of the porous, oleophilic and hydrophobic layer, and the fixing layer (4) allows penetration through it to water and oil, while the pore diameter of the aforementioned porous, oleophilic and hydrophobic layer (3) is 300-850 μm, and the porosity is 10-40%, and the oleophilic and hydrophobic layer (3) is an accumulation of silicon sand with a coating, and the sphericity of silicon coated sand is at least 0.7, with a particle diameter of 300-850 μm, and a cluster density of 1.4-1.65 g / cm 3 .
2. A device for separating oil and water according to claim 1, characterized in that the wall (1) and the fixing layer (4) are flat, and the fixing layer (4) and part of the specified wall (1) coated with porous, oleophilic and hydrophobic layer (3), have through holes made with the possibility of water and oil to penetrate through them.
3. A device for separating oil and water according to claim 2, characterized in that the through holes are evenly distributed on the fixing layer (4) and on a part of said wall (1) covered with a porous, oleophilic and hydrophobic layer (3).
4. A device for separating oil and water according to any one of paragraphs. 1-3, characterized in that the entire surface of the wall (1) is covered with a porous, oleophilic and hydrophobic layer (3).
5. A device for separating oil and water according to claim 4, characterized in that between the wall (1) and the fixing layer (4) a chamber (5) is formed for separating oil and water, and the porous, oleophilic and hydrophobic layer (3) fills a chamber (5) for separating oil and water.
6. A device for separating oil and water according to claim 5, characterized in that the silicon sand with the coating is silicon sand with a surface coated with a coating layer, and the silicon sand with the coating is formed by mixing silicon sand and an oleophilic and hydrophobic resin with subsequent curing, while the diameter of the through holes does not exceed the diameter of the particles of silicon sand coated, and the thickness of the coating layer is 0.1-10 microns.
7. A device for separating oil and water according to claim 6, characterized in that the thickness of said oleophilic and hydrophobic layer (3) is 5-50 mm, the sphericity of silicon sand with a preliminary coating is 0.7-0.95, and the density accumulations is 1.4-1.5 g / cm 3 .
8. The device for separating oil and water according to claim 6, characterized in that the mass ratio of oleophilic and hydrophobic resin to silicon sand is 0.2-15: 100, the oleophilic and hydrophobic resin is one or more selected from oleophilic and hydrophobic epoxy resin, oleophilic and hydrophobic phenolic resin, oleophilic and hydrophobic polyurethane resin and oleophilic and hydrophobic organosilicon resin.
9. A device for separating oil and water according to claim 8, characterized in that the oleophilic and hydrophobic epoxy resin is one or more selected from an epoxy resin such as glycidyl ethers, an epoxy resin such as glycidyl ethers, an epoxy resin such as glycidylamine, epoxy linear aliphatic type resins, alicyclic type epoxy resins, polysulphide rubber modified epoxy resins, polyamide modified epoxy resins, modified epoxy resins livinyl-tert-butyraldehyde, nitrile-modified epoxy, phenolic-modified epoxy, polyester-modified epoxy, melamine-urea-formaldehyde-modified epoxy, furfural-modified, epoxy, epoxy, epoxy an isocyanate-modified resin; and an organosilicon-modified epoxy resin.
10. The device for separating oil and water according to claim 8, characterized in that the oleophilic and hydrophobic phenolic resin is one or two selected from a phenolic resin modified with dimethylbenzene, a phenolic resin modified with an epoxy resin, and a phenolic resin modified with an organosilicon compound .
11. A device for separating oil and water according to claim 8, characterized in that the oleophilic and hydrophobic polyurethane resin is obtained using one or more substances selected from organic polyisocyanate, polyether and oligomeric polyols.
12. A device for separating oil and water according to claim 8, characterized in that the oleophilic and hydrophobic organosilicon resin is one or more selected from methyltrichlorosilane, dimethyldichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane and methylphenyldichlorosilane.
13. A device for separating oil and water according to claim 6, characterized in that the mass ratio of the curing agent used for curing to oleophilic and hydrophobic resin is 1-25: 100.
14. A device for separating oil and water according to claim 5, characterized in that the chamber (5) for separating oil and water has a shape corresponding to the shape of the chamber (2) for accumulating oil.
15. A device for separating oil and water according to claim 1 or 14, characterized in that the shape of the chamber (2) for the accumulation of oil is spherical, columnar or conical, while the chamber (2) for the accumulation of oil has a volume of 50-100 ml.
16. A device for separating oil and water according to claim 1, characterized in that it further includes a pipe in communication with the chamber (2) for the accumulation of oil.
17. A system for collecting oil floating on the surface of water, comprising at least one oil and water separation device, characterized in that said oil and water separation device is an oil and water separation device according to any one of claims. 1-16.
18. The system for collecting floating oil according to claim 17, characterized in that there are many devices for separating oil and water, and many devices for separating oil and water, connected by flexible connections.
19. A system for collecting floating oil according to claim 17 or 18, characterized in that it further includes a pump, a pipe for connecting the pump to the chamber for accumulating oil of each device for separating oil and water, a device for collecting oil, for storing floating oil, coming from the pump, and a shell for storing the device for collecting oil.
RU2013127644/02A 2010-11-19 2011-06-21 Device for oil and water separation, and systems for oil spills gathering including such device RU2574918C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201010554391.3 2010-11-19
CN201010554391.3A CN102462977B (en) 2010-11-19 2010-11-19 Oil-water separation device and floating oil collection system with oil-water separation device
PCT/CN2011/076049 WO2012065439A1 (en) 2010-11-19 2011-06-21 Oil-water separating device and floating oil collecting system comprising same

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RU2574918C2 true RU2574918C2 (en) 2016-02-10

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830371A (en) * 1972-12-27 1974-08-20 Exxon Production Research Co Liquid-liquid separation
GB1442219A (en) * 1972-09-15 1976-07-14 Inst Francais Du Petrole Device for collecting an oily polluting liquid on the surface of water
US5971659A (en) * 1998-01-27 1999-10-26 Patterson; James A. Oil spill recovery articles and method
RU2183231C2 (en) * 1999-09-16 2002-06-10 Открытое акционерное общество "Научно-исследовательский институт нетканых материалов" Oil-sorbing boom
CN1764457A (en) * 2003-04-04 2006-04-26 默克.夏普-道姆公司 Combination therapy for the treatment of Alzheimer's disease
CN101565942A (en) * 2009-04-23 2009-10-28 上海交通大学 Maritime shovel-type floating oil collector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1442219A (en) * 1972-09-15 1976-07-14 Inst Francais Du Petrole Device for collecting an oily polluting liquid on the surface of water
US3830371A (en) * 1972-12-27 1974-08-20 Exxon Production Research Co Liquid-liquid separation
US5971659A (en) * 1998-01-27 1999-10-26 Patterson; James A. Oil spill recovery articles and method
RU2183231C2 (en) * 1999-09-16 2002-06-10 Открытое акционерное общество "Научно-исследовательский институт нетканых материалов" Oil-sorbing boom
CN1764457A (en) * 2003-04-04 2006-04-26 默克.夏普-道姆公司 Combination therapy for the treatment of Alzheimer's disease
CN101565942A (en) * 2009-04-23 2009-10-28 上海交通大学 Maritime shovel-type floating oil collector

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