Oil dehydration and demineralisation device

FIELD: oil and gas industry.

SUBSTANCE: device contains a remote oil mixer (3) with fresh flushing water and a water chamber (2) for oil flushing and a settling chamber (11) located in a common body (1) separated by transverse partition (10). The settling chamber is an electric precipitation chamber. The device can further comprise a pre-dewatering chamber. A gas separation chamber can be additionally installed on the body of the pre-dewatering chamber. There are one or more injector mixers placed vertically or under inclination in the water flushing chamber and provided with nozzles (4) and coaxial mixing nipples (5) in the lower part.

EFFECT: increased efficiency of oil dehydration and demineralisation by increasing time for mixing oil with water at high water-oil ratio.

7 cl, 5 dwg

 



 

Same patents:

FIELD: oil and gas industry.

SUBSTANCE: invention refers to dehydration device for oil product running in a main pipeline by water drop evaporation. Device includes electromagnetic field power source connected to electromagnetic field power input element for controlled medium and additionally features heated pipeline section with a first and second radio transparent dielectric manholes, thermocouple connected to external surface of heated pipeline section, and temperature logger, so that thermocouple output is connected to temperature logger input.

EFFECT: simplified process of oil product dehydration.

1 dwg

FIELD: oil and gas industry.

SUBSTANCE: group of inventions refers to oil production and processing. The invention concerns a method for a hydrocarbon material dehydration involving the high-frequency magnetic treatment of the hydrocarbon material with a signal in a generated pulsed magnetic field. The pulsed magnetic field is generated along a flow translation vector. The process of the hydrocarbon material dehydration is controlled by varying the pulse frequency and amplitude depending on a degree of the water content of the hydrocarbon material. The invention also refers to a device for the hydrocarbon material dehydration comprising an inductor, a pulse generator and an analyser with a sensitive unit for determining the degree of the water content of the hydrocarbon material.

EFFECT: improving the quality of the treated hydrocarbon material and the effectiveness of its dehydration with minimum energy, time and equipment costs.

4 cl, 1 dwg, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to the field of processing petroleum products. The invention deals with a method of water-petroleum emulsion dehydration with the application of super-high-frequency (SHF) energy, supplied via a waveguide, made in form of a metal pipe, and a system of coalescentors, in addition to SHF energy in the range from 100 MHz to 3000 MHz with the power flux density from 50 to 200 W/cm2, ultrasonic (US) energy, with the intensity from 1 to 10 W/cm2, and with the frequency from 300 kHz to 2000 kHz, is supplied into the waveguides, US energy with the intensity from 0.8 to 1.2 W/cm2 and the frequency from 18 to 40 kHz, is used in the coalescentors.

EFFECT: effective removal of water and solid admixtures from petroleum in the flow with the minimal energy consumption.

2 cl, 1 tbl, 2 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the method of ultrasonic destruction of oil-in-water emulsion comprising the process of treatment of emulsion with the emulsion breaker, ultrasound and settling process, meanwhile the optimum level of specific acoustic power of ultrasound allowing to achieve the minimal fraction of water in oil is determined in advance, and the emulsion is settled during the ultrasonic treatment.

EFFECT: method allows 2-4 times decrease the settling time and capital expenses for oil dewatering.

2 cl, 2 dwg, 1 tbl, 2 ex

FIELD: oil-and-gas industry.

SUBSTANCE: proposed unit comprises interconnected electric desalting unit including sets of heat exchangers and four electric hydrators, gasoline pre-evaporation unit including stripping column, reflux tank and refrigerator-condenser, atmospheric distiller unit including atmospheric column, reflux tank and refrigerator-condenser, gasoline stabilisation unit stabilising column, pump reflux tanks and refrigerator-condenser. Besides, this unit comprises crude oil feed pump, stripping columns, tubular furnaces, vacuum distiller column, reflux tank, refrigerator-condenser, stem ejection pump, six group of heat exchangers and after coolers. Note here that desalting unit comprises additionally two groups of heat exchangers. Note also that gasoline pre-stripping unit and atmospheric distillation unit comprise extra compressor and reducing throttle. Note here that unit compressor of gasoline pre-stripping unit is arranged between reducing unit and seventh group of heat exchangers of electric desalting unit. Aforesaid reducing throttle is arranged between refrigerator-condenser and seventh group of desalting unit heat exchangers, compressor of atmospheric distillation unit is arranged between atmospheric column and eighth group of desalting unit heat exchangers. Atmospheric distillation unit reducing throttle is arranged between refrigerator-condenser and eighth group of desalting unit heat exchangers.

EFFECT: minimised thermal head between cold and hot flows, primary power source saving.

1 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention is related to the method including degasification of raw oil, its division into two parts, heating of the first part up to the temperature close to the temperature of electric desalting and dewatering due to cooling of light-end products (gasoline, kerosene) up to temperature of transportation. The second part of degassed oil is mixed up with drain water obtained at the first stage, and then the mixture is heated with remaining products for oil processing up to the temperature ensuring equality of temperature in heated degassed oil with temperature of electric desalting and dewatering upon mixing of the first and second parts. Heated degasses oil is subject to separation with receipt of dewatered oil, which is subjected to multistage desalting and dewatering with receipt of treated oil and drain water of the first stage.

EFFECT: reducing consumed power and steel intensity of the equipment, reducing consumed fresh water and quantity of runoffs, reducing corrosion rate for the equipment.

3 cl, 1 dwg, 1 ex

FIELD: oil-and-gas industry.

SUBSTANCE: proposed unit consists of mud-gas separator, recuperative heat exchangers of oil degassed by oil processing products, separator, electrical dehydrators equipped with jet pumps feeding circulating drainage water and jet pumps feeding balance drainage water. This unit comprises three electrical dehydrators. Crude oil is degassed to get degassed oil to be divided into two parts. First part is heated while second part is mixed by jet pump with balance drainage water from first electrical dehydrator and heated. Heated parts of degassed oil are mixed and fed to separator for salt water to be separated. Obtained partially desalted water is mixed by jet pumps with circulating drainage water from first electrical dehydrator and with balance drainage water from second electrical dehydrator and directed to first electrical dehydrator. Therefrom, drainage water is discharged and divided to circulating and balance drainage water. Besides, partially desalted oil is discharged and directed to second electrical dehydrator after mixing by jet pumps with circulating drainage water from second electrical dehydrator and with balance drainage water from third electrical dehydrator. Therefrom, drainage water is discharged and divided to circulating and balance drainage water. Now, partially desalted oil is discharged and directed to third electrical dehydrator after mixing by jet pumps with the mix of fresh water circulating drainage water from third electrical dehydrator and with balance drainage water from third electrical dehydrator.

EFFECT: lower metal input, electric power and fresh water savings, extraction of dissolved oxygen from oil.

2 cl, 1 dwg, 1 ex

FIELD: oil and gas industry.

SUBSTANCE: invention pertains to field of oil preparation for refining. Invention refers to oil (water-oil emulsion) dehydration method that includes oil mixing with magnetic liquid, oil separation into dehydrated oil and water phase in gradient magnetic field and further separation of magnetic particles from dehydrated oil, note that magnetic liquid received from kerosene oil and iron-containing wastes of the production is used, note that water-oil emulsion is mixed with magnetic liquid in relation 1:0.01.

EFFECT: oil dehydration efficiency increase with decrease of capital and operation costs.

2 dwg

FIELD: gas and oil production.

SUBSTANCE: invention refers to UHF plant of oil-water emulsion processing including UHF generator connected to waveguide where microwave coalescenter in the form of pipe out of UHF-permeable material for oil-water emulsion flow with elements increasing wetting area installed inside the pipe is mounted coaxially and irradiated by horn emitters of UHF. Coalescenter is mounted inside pipeline out of dielectric UHF-permeable material for oil-water emulsion feeding coaxially to the pipeline. Waveguide envelops emulsion feeding pipeline. Operation frequency of UHF generator is 2400-2500 MHz at output power up to 5 kW or 905-925 MHz at output power of 5-50 kW. Generator can operate in continuous or pulse mode and is connected via decoupler and horn emitters to waveguide made in the form of pipe with octagonal cross-section. Elements increasing wetting area are made of UHF-absorbing material based on porous ceramics which can be heated by UHF emission to 70 90C. Vertical centrifugal static separator in the form of rim at the output with end wall with output hole is installed at the coalescenter output. Side wall features holes at different levels for separate water discharge from lower level and oil from higher level, and device of flow twisting is mounted inside the rim.

EFFECT: improved oil quality at the plant output, increased performance.

6 cl, 3 tbl, 3 dwg

FIELD: oil and gas production.

SUBSTANCE: here is disclosed procedure for breaking down water-oil emulsion in tank comprising set of rod electrodes, disk electrode and water-oil emulsion. The procedure consists in the following stages: a) transmission of water-oil emulsion through a distributing, working and outlet chambers; also, water-oil emulsion is uniformly distributed in the distributing chamber in space before inlet orifices. Notably, a flow of water-oil emulsion runs parallel to the rod electrodes in the working chamber; b) procedure consists in supply of sinusoidal voltage to the rod electrodes; this causes coagulation of dipole molecules of water in space of lines of magnetic inductions and coagulation of molecules of hydrocarbon structures in space beyond boundaries of magnet inductions. Further, from the working chamber coagulated dipole molecules of water and coagulated molecules of hydrocarbon structures enter a discharge chamber through orifices in the disk electrode and are successively removed via an outlet branch.

EFFECT: efficient breakdown of water-oil emulsion by re-orientation of dipole molecules of water along lines of magnetic induction.

1 ex, 13 dwg

FIELD: oil and gas industry.

SUBSTANCE: group of inventions refers to oil production and processing. The invention concerns a method for a hydrocarbon material dehydration involving the high-frequency magnetic treatment of the hydrocarbon material with a signal in a generated pulsed magnetic field. The pulsed magnetic field is generated along a flow translation vector. The process of the hydrocarbon material dehydration is controlled by varying the pulse frequency and amplitude depending on a degree of the water content of the hydrocarbon material. The invention also refers to a device for the hydrocarbon material dehydration comprising an inductor, a pulse generator and an analyser with a sensitive unit for determining the degree of the water content of the hydrocarbon material.

EFFECT: improving the quality of the treated hydrocarbon material and the effectiveness of its dehydration with minimum energy, time and equipment costs.

4 cl, 1 dwg, 2 ex

FIELD: process engineering.

SUBSTANCE: invention relates to mixers-electrocoalescentres and can be used to make water-oil emulsions at oil electrical desalting plants. Proposed device is composed of vertical earthed Venturi tube housing with electrode aligned therewith. Water feed nozzle is arranged at the bottom in housing axis. Variable electric field inside said chamber is induced between central rod electrode and Venturi tube mixing chamber walls. Nozzle counter electrode is composed by Venturi tube confuser part. Voltage to electrode and nozzle is fed via current conductors and bushing from step-up transformer.

EFFECT: higher efficiency of coalescence.

1 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention is related to the method including degasification of raw oil, its division into two parts, heating of the first part up to the temperature close to the temperature of electric desalting and dewatering due to cooling of light-end products (gasoline, kerosene) up to temperature of transportation. The second part of degassed oil is mixed up with drain water obtained at the first stage, and then the mixture is heated with remaining products for oil processing up to the temperature ensuring equality of temperature in heated degassed oil with temperature of electric desalting and dewatering upon mixing of the first and second parts. Heated degasses oil is subject to separation with receipt of dewatered oil, which is subjected to multistage desalting and dewatering with receipt of treated oil and drain water of the first stage.

EFFECT: reducing consumed power and steel intensity of the equipment, reducing consumed fresh water and quantity of runoffs, reducing corrosion rate for the equipment.

3 cl, 1 dwg, 1 ex

FIELD: oil-and-gas industry.

SUBSTANCE: proposed unit consists of mud-gas separator, recuperative heat exchangers of oil degassed by oil processing products, separator, electrical dehydrators equipped with jet pumps feeding circulating drainage water and jet pumps feeding balance drainage water. This unit comprises three electrical dehydrators. Crude oil is degassed to get degassed oil to be divided into two parts. First part is heated while second part is mixed by jet pump with balance drainage water from first electrical dehydrator and heated. Heated parts of degassed oil are mixed and fed to separator for salt water to be separated. Obtained partially desalted water is mixed by jet pumps with circulating drainage water from first electrical dehydrator and with balance drainage water from second electrical dehydrator and directed to first electrical dehydrator. Therefrom, drainage water is discharged and divided to circulating and balance drainage water. Besides, partially desalted oil is discharged and directed to second electrical dehydrator after mixing by jet pumps with circulating drainage water from second electrical dehydrator and with balance drainage water from third electrical dehydrator. Therefrom, drainage water is discharged and divided to circulating and balance drainage water. Now, partially desalted oil is discharged and directed to third electrical dehydrator after mixing by jet pumps with the mix of fresh water circulating drainage water from third electrical dehydrator and with balance drainage water from third electrical dehydrator.

EFFECT: lower metal input, electric power and fresh water savings, extraction of dissolved oxygen from oil.

2 cl, 1 dwg, 1 ex

Electric dehydrator // 2523313

FIELD: electricity.

SUBSTANCE: electric dehydrator includes electrodes and distribution devices in the form of distribution boxes with open bottom and perforated top out of flexible dielectric material attached to a frame; in the work state, the boxes have vault shape.

EFFECT: enhanced performance of electric dehydrator, expanded scope of work loads, enhanced demineralisation and dehydration efficiency, reduced cost of distribution device.

1 dwg

FIELD: electricity.

SUBSTANCE: described is a method and an apparatus, having a plurality of electromagnetic resonant structures connected to a common process or reaction volume, such that resonance of each structure is maintained while the process or reaction volume is a part of each resonant structure. At the same time, each resonant structure is matched with its respective electromagnetic generator. Such an apparatus allows each generator and its delivery system to run at rated power, with summation of all the powers occurring in the common process or reaction volume. In various versions of this invention, the various electromagnetic generators can run at the same or different frequencies. The various resonant structures can be single mode or multimode or a combination of single mode and multimode. The various resonant structures can be arranged spatially in order to connect several structures to the process or reaction volume.

EFFECT: high output power of the reaction chamber.

17 cl, 8 dwg

FIELD: chemistry.

SUBSTANCE: apparatus for regenerating spent transformer oil includes a waveguide at the ends of which there are stop rings and a hollow cone with a hole at the vertex, capable of moving between the stop rings through a rod which is connected to the base of the hollow cone through a sliding ring.

EFFECT: effective regeneration of transformer oil through coagulation of molecules of water and ageing products with a rotating electromagnetic field.

1 tbl, 7 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to oil processing and may be used for oil dehydration in oil production and petrochemical industries. Proposed method comprises subjecting oil to shock waves originating at high-voltage pulse discharged in water contained in tight cylindrical membrane radiator separated from processed oil-water emulsion and provided with electrodes arranged on its sidewalls. Note here that oil is fed via branch pipe into process tank for it to be separated after processing by hydraulic waves into gas, oil and water to be discharged via appropriate branch pipes.

EFFECT: higher efficiency.

2 cl, 1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to separation of water-oil emulsions and may be used in oil processing and chemical industries, etc. Proposed separator comprises housing equipped with raw stock distributors and manifolds for discharge of purified oil product and separated water. Vertical external electrodes made up of plates and rod electrodes arranged there between and suspended to dry oil distribution manifold under dry oil flow injectors are connected via rectifier to transformer.

EFFECT: higher quality of separation.

3 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to preparation of commercial oil and may be used in petroleum industry for development of devices for super high-frequency processing of water-oil mixes. Proposed device comprises LK-long cylindrical chamber with inlet and outlet branch pipes to connect said chamber to pipeline. Radiolucent sealed case is arranged on chamber inner face wall to accommodate electromagnetic power input and distribution device connected with SHF power source. Similar cases with emulation passage openings are fitted one into another and arranged atop aforesaid case arranged in adjacent cases, one is located at the end of the case and another one is located at its beginning. Inlet and outlet branch pipes are arranged between radiolucent sealed case and first straight-flow radiolucent case, and downstream of the last straight-flow radiolucent case. Tapered case may be used as sealed radiolucent cases. Odd straight-flow cases may have opening at case apex and have their base located back-to-back on chamber surface, while even straight-flow cases have their bases fitted on chamber surface with clearance. Sealed radiolucent case and straight-flow cases may have cylindrical shape of various diameters and be arranged coaxially on opposite walls of the chamber.

EFFECT: higher quality of separation.

3 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention proposes a biofuel cleaning filter containing housing 1 having a base connected to an external wall with spokes 4 and 5, in which inlet and outlet channels having the shape of a knee are located. Cartridge-type filter element 9 is installed on housing 1 from above under cap 10, and bowl 15 is located from below, at the bottom of which accumulated water level sensor 26 is installed. Above the bottom of fuel 15 there installed is a biofuel flow swirler consisting of upper part 20 made in the form of a funnel connected to the housing base and plate-like lower part 17 with tangentially located grooves. Parts 17 and 20 are connected to each other with tubular fasteners forming channels for biofuel passage from under the swirler to the cartridge-type filter element. At the bottom of bowl 15 there is valve 27 installed for automatic draining of accumulated water, which is electromagnetically controlled from sensor 26. An umbrella made in the form of a net having the shape of a semi-toroid is installed above sensor 26.

EFFECT: reduction of labour costs for filter maintenance.

2 cl, 3 dwg

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