WO2004060529A1 - Instalation for separation of emulsion of water and hydrocarbons - Google Patents

Instalation for separation of emulsion of water and hydrocarbons Download PDF

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Publication number
WO2004060529A1
WO2004060529A1 PCT/BG2003/000021 BG0300021W WO2004060529A1 WO 2004060529 A1 WO2004060529 A1 WO 2004060529A1 BG 0300021 W BG0300021 W BG 0300021W WO 2004060529 A1 WO2004060529 A1 WO 2004060529A1
Authority
WO
WIPO (PCT)
Prior art keywords
column
tray
orifice
water
hydrocarbons
Prior art date
Application number
PCT/BG2003/000021
Other languages
French (fr)
Inventor
Sergei Skryabin
Viktor Lobanov
Original Assignee
Resourse Plus Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Resourse Plus Ltd filed Critical Resourse Plus Ltd
Priority to AU2003227139A priority Critical patent/AU2003227139A1/en
Publication of WO2004060529A1 publication Critical patent/WO2004060529A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G33/00—Dewatering or demulsification of hydrocarbon oils
    • C10G33/06—Dewatering or demulsification of hydrocarbon oils with mechanical means, e.g. by filtration
    • 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
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
    • 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
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
    • 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
    • B01D17/04—Breaking emulsions
    • B01D17/042—Breaking emulsions by changing the temperature
    • 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
    • B01D17/04—Breaking emulsions
    • B01D17/045—Breaking emulsions with coalescers
    • 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
    • B01D17/08—Thickening liquid suspensions by filtration
    • B01D17/10—Thickening liquid suspensions by filtration with stationary filtering elements

Definitions

  • the invention is concerned with an installation for separation of emulsion of water and hydrocarbons, applicable to various fields of chemistry.
  • the aim of the present invention is to create an installation for the separation of emulsion of water and hydrocarbons that could be used in uninterrupted processes with increased efficiency and decreased power consumption.
  • the aim is achieved by creating an installation for separation of the emulsion water-hydrocarbons, which is characterized in that it includes 2 columns, the lower parts of which are connected through a column for balancing the water and hydrocarbon currents in them.
  • an orifice is located, under which a deaf tray is located.
  • a system of sieve-grid trays, among which profiled fillings are located is positioned.
  • On the top of the column an orifice is located.
  • the deaf tray is equipped with a bell overflow system, around which an overflow pipe, a serpentine, and a separating device are located.
  • the overflow orifice is located at a certain distance under the deaf tray, connected through an overflow pipe to the middle zone of the second column.
  • a similar separating device is located under the level of the overflow pipe.
  • a system that includes at least one profiled filling and one sieve-grid tray is located in the upper zone of the second column. The highest part of the second column and the balancing column are connected to the middle part of the first column through orifices.
  • each sieve-grid tray is made of a support over which a perforated plate is fixed. The perforation is performed in such a manner that passing openings are obtained, located at a certain distance from each other, while the walls of the passing openings are located at an angle to the plain of the plate. It is suitable for the filling to be accomplished as a package of vertically oriented profiled metal sheets, located parallel and at a distance from each other.
  • the advantages, according to the inventions, lay in its fitness for using it in uninterrupted processes.
  • the installation provides increased efficiency and decreased power consumption, because neither moving devices nor devices that require a great expenditure of electric power are used.
  • Figure 1 represents, according to the invention, the technological scheme of the installation for separation of water and hydrocarbons;
  • Figure 2 illustrates the accomplishment of an element of the separating device;
  • Figure 3 shows the structure of the sieve-grid fractioning trays;
  • Figure 4 shows the structure of the profiled filling
  • the installation for the separation of emulsion of water and hydrocarbons (fig. 1) consists of the column 1 , column 2 and column 3, balancing the currents of hydrocarbons and water in columns 1 and 2.
  • An orifice 4 is located in the middle part of the first column 1 under which a deaf tray 5 is located.
  • a system of sieve- grid fractioning trays 7 is located at the upper part of the first column 1 and the profiled filling 6 is located between the trays.
  • An orifice 8 is fixed on the top of column 1.
  • the deaf tray 5 is equipped with a bell overflow system around the overflow pipe on which a serpentine 12 and a separating device 12, 13 are located.
  • An overflow orifice 11 is fixed at a certain height above the deaf tray 5, connected through an overflow pipe to the middle part of the second column 2. Under the level of the overflow pipe a similar separating device 13 is located. In the upper part of the second column 2 a system that has at least one profiled filling 21 and sieve-grid fractioning tray 23 is located. The top of the second column 2 and the balancing column 3 are connected to the middle part of the first column 1 through the orifices 18 and 19.
  • the separating device (fig. 2) has cell structure shaped of S-shaped elements 24 with overlapping levers 25.
  • Each sieve-grid fractioning tray (fig. 3) consists of support 26, over which a perforated plate 27 is fixed. The perforation is performed in such a manner that passing openings 28, spaced at a certain distance, are obtained. The walls 29 of the passing openings 28 are located at an angle to plane A of plate 27.
  • the filling (fig. 4) can be accomplished as a package of vertically oriented perforated metal sheets 30, spaced parallel at a distance from each other.
  • Uncondensed fractioning gases are charged in the middle part of column 1 through the orifice 4 and while passing through a liquid layer over the deaf tray 5 they partially condense.
  • the remaining part of the gases is cooled down and condenses through the system of profiled filling 6 and the sieve-grid fractioning trays 7, located in the upper part of the column 1, while the unsuitable for condensing gases are transported for additional processing through orifice 8 on the top of column 1.
  • the level of the liquid over the deaf tray 5 is maintained through a bell overflow system so that the surplus of the liquid is charged in the lower part of the column 1.
  • the water in the hydrocarbons is heated through serpentine 12 in the lower part of the column 1 and is separated from the hydrocarbons through the separation device 13, as a result of which the concentration of the hydrocarbon phase exceeds 70%.
  • the sieve-grid fractioning trays 7 located in the upper part of the column 1 serve as drop collectors preventing the discharge of the liquid phase with the gases.
  • the surplus of the liquid hydrocarbons is charged in column 2 through overflow orifice 11.
  • the surplus of water is automatically charged in a circulating water collector through orifice 14 of column 1 and orifice 16 of column 3.
  • the orifices 9 and 10 are reserve.
  • the column 2 is intended for the final separation of the hydrocarbons from the water.
  • the separation is accomplished by a similar separation device 13 as the one used in column 1 , located in the lower part of the column 2, based on the principle of the reciprocating (pulsating) movement of the mixture of hydrocarbons and water, which decreases the concentration of water to less than 2 - 4% and its final discharge is accomplished in horizontal and vertical reservoirs.
  • the effective separation of the emulsion of water and hydrocarbons is accomplished by the laminating effect of the currents, passing through filling 6, 21, sieve-grid fractioning trays 7, 23 and separating device 13.
  • the evaporating gases from columns 3, 2 are charged in the middle part of the column 1 for following condensation through orifices 18 and 19 on the top parts of columns 3, 2.
  • Column 3 represents balancing vessel between column 1 and column 2, so that the water charged from orifice 14 of column 1 is introduced through orifice 15 in the middle of the column 3 and the latter connects to the bottom of column 2 through orifices 16 and 17.
  • the purpose of the balancing vessel 3 is the achievement of uniform action (laminar movement of the liquid) of column 1 and column 2, as well as the prevention of hydrocarbons losses with the current of the drainage water.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The installation for separation of emulsion of water and hydrocarbons includes two columns (1,2), the lower parts of which are connected trough column (3) for balancing the currents of hydrocarbons and water in them. In the middle zone of the first column (1) an orifice (4) is located, under which a deaf tray (5) is located, so that in the upper part of the first column (1), an orifice (8)is located also. The deaf tray (5) is equipped with a bell overflow system, around the overflow pipe of which a serpentine (12) and a separating device (13) are located. At a certain height under the deaf tray (5), an orifice (11) is located, connected trough an overflow pipe with the middle zone of the second column (2). An analogical separating device (13) is located under the level of the overflow pipe, while the upper part of the second column (2), a system of at least one profiled filling (21) and at least one sieve-grid fractioning tray (23), is located. The top of second column (2) and that of balancing column (3) are connected to the middle zone of first column (1) through orifices (18, 19).

Description

Installation for separation of emulsion of water and hydrocarbons
Field of Technique
The invention is concerned with an installation for separation of emulsion of water and hydrocarbons, applicable to various fields of chemistry.
Prior art
'Unit Operations In The Chemical Industry* ('Procesi i aparati v himicheskata promishlenost'), D.G. Elenkov, Sofia, 1970, Tehnika publishing house, p. 178- 227 describes various types of devices for separation of emulsions: coolers, condensators, separators, centrifuges, as well as apparatuses with application in the oil processing, based on the electrolysis principle and other, designed for separation of the emulsion of water-hydrocarbons.
The shortcomings of the above-mentioned apparatuses lay in the complexity of their construction, their limited use in uninterruptible processes, their low efficiency and high power consumption.
Summary of the Invention The aim of the present invention is to create an installation for the separation of emulsion of water and hydrocarbons that could be used in uninterrupted processes with increased efficiency and decreased power consumption. The aim is achieved by creating an installation for separation of the emulsion water-hydrocarbons, which is characterized in that it includes 2 columns, the lower parts of which are connected through a column for balancing the water and hydrocarbon currents in them. In the middle zone of the first column, an orifice is located, under which a deaf tray is located. In the upper part of the first column, a system of sieve-grid trays, among which profiled fillings are located, is positioned. On the top of the column an orifice is located. The deaf tray is equipped with a bell overflow system, around which an overflow pipe, a serpentine, and a separating device are located. The overflow orifice is located at a certain distance under the deaf tray, connected through an overflow pipe to the middle zone of the second column. A similar separating device is located under the level of the overflow pipe. A system that includes at least one profiled filling and one sieve-grid tray is located in the upper zone of the second column. The highest part of the second column and the balancing column are connected to the middle part of the first column through orifices.
It is suitable for the separating device to have cell structure, formed in S-shaped elements, with overlapping levers. It is also preferred for each sieve-grid tray to be made of a support over which a perforated plate is fixed. The perforation is performed in such a manner that passing openings are obtained, located at a certain distance from each other, while the walls of the passing openings are located at an angle to the plain of the plate. It is suitable for the filling to be accomplished as a package of vertically oriented profiled metal sheets, located parallel and at a distance from each other.
The advantages, according to the inventions, lay in its fitness for using it in uninterrupted processes. The installation provides increased efficiency and decreased power consumption, because neither moving devices nor devices that require a great expenditure of electric power are used.
Description of attached drawings
Figure 1 represents, according to the invention, the technological scheme of the installation for separation of water and hydrocarbons; Figure 2 illustrates the accomplishment of an element of the separating device; Figure 3 shows the structure of the sieve-grid fractioning trays; Figure 4 shows the structure of the profiled filling
Examples for particular realization
The installation for the separation of emulsion of water and hydrocarbons (fig. 1) consists of the column 1 , column 2 and column 3, balancing the currents of hydrocarbons and water in columns 1 and 2. An orifice 4 is located in the middle part of the first column 1 under which a deaf tray 5 is located. A system of sieve- grid fractioning trays 7 is located at the upper part of the first column 1 and the profiled filling 6 is located between the trays. An orifice 8 is fixed on the top of column 1. The deaf tray 5 is equipped with a bell overflow system around the overflow pipe on which a serpentine 12 and a separating device 12, 13 are located. An overflow orifice 11 is fixed at a certain height above the deaf tray 5, connected through an overflow pipe to the middle part of the second column 2. Under the level of the overflow pipe a similar separating device 13 is located. In the upper part of the second column 2 a system that has at least one profiled filling 21 and sieve-grid fractioning tray 23 is located. The top of the second column 2 and the balancing column 3 are connected to the middle part of the first column 1 through the orifices 18 and 19. The separating device (fig. 2) has cell structure shaped of S-shaped elements 24 with overlapping levers 25.
Each sieve-grid fractioning tray (fig. 3) consists of support 26, over which a perforated plate 27 is fixed. The perforation is performed in such a manner that passing openings 28, spaced at a certain distance, are obtained. The walls 29 of the passing openings 28 are located at an angle to plane A of plate 27. The filling (fig. 4) can be accomplished as a package of vertically oriented perforated metal sheets 30, spaced parallel at a distance from each other. The functioning of the installation, according to the invention, is as follows: Uncondensed fractioning gases are charged in the middle part of column 1 through the orifice 4 and while passing through a liquid layer over the deaf tray 5 they partially condense. The remaining part of the gases is cooled down and condenses through the system of profiled filling 6 and the sieve-grid fractioning trays 7, located in the upper part of the column 1, while the unsuitable for condensing gases are transported for additional processing through orifice 8 on the top of column 1. The level of the liquid over the deaf tray 5 is maintained through a bell overflow system so that the surplus of the liquid is charged in the lower part of the column 1. The water in the hydrocarbons is heated through serpentine 12 in the lower part of the column 1 and is separated from the hydrocarbons through the separation device 13, as a result of which the concentration of the hydrocarbon phase exceeds 70%.
The sieve-grid fractioning trays 7 located in the upper part of the column 1 serve as drop collectors preventing the discharge of the liquid phase with the gases. The surplus of the liquid hydrocarbons is charged in column 2 through overflow orifice 11. The surplus of water is automatically charged in a circulating water collector through orifice 14 of column 1 and orifice 16 of column 3. The orifices 9 and 10 are reserve.
The column 2 is intended for the final separation of the hydrocarbons from the water. The separation is accomplished by a similar separation device 13 as the one used in column 1 , located in the lower part of the column 2, based on the principle of the reciprocating (pulsating) movement of the mixture of hydrocarbons and water, which decreases the concentration of water to less than 2 - 4% and its final discharge is accomplished in horizontal and vertical reservoirs. The effective separation of the emulsion of water and hydrocarbons is accomplished by the laminating effect of the currents, passing through filling 6, 21, sieve-grid fractioning trays 7, 23 and separating device 13. The evaporating gases from columns 3, 2 are charged in the middle part of the column 1 for following condensation through orifices 18 and 19 on the top parts of columns 3, 2.
The surplus of water is automatically charged to drainage through orifice 17, while orifice 20 serves for reserve purposes.
Column 3 represents balancing vessel between column 1 and column 2, so that the water charged from orifice 14 of column 1 is introduced through orifice 15 in the middle of the column 3 and the latter connects to the bottom of column 2 through orifices 16 and 17.
The purpose of the balancing vessel 3 is the achievement of uniform action (laminar movement of the liquid) of column 1 and column 2, as well as the prevention of hydrocarbons losses with the current of the drainage water.

Claims

Patent Claims
1. Installation for separation of emulsion of water and hydrocarbons, characterized in that it includes two columns (1 ,2), the lower parts of which are connected through column (3) for balancing the currents of hydrocarbons and water in them, so that in the middle zone of the first column (1) a orifice (4) is located, under which a deaf tray (5) is located, so that in the upper part of the first column (1), a orifice (8) is located, while the deaf tray (5) is equipped with a bell overflow system, around the overflow pipe of which a serpentine (12) and a separating device are located, while at a certain height under the deaf tray (5), an orifice (11 ) is located, connected trough an overflow pipe with the middle zone of the second column (2), so that an analogical separating device (13) is located under the level of the overflow pipe, while in the upper part of the second column (2), a system of at least one profiled filling (21) and at least one sieve-grid fractioning tray (23), is located, so that the top of column (2) and that of the balancing column (3) are connected to the middle zone of the first column (1) through orifices (18,19).
2. An installation, according to claim 1 , characterized in that the separating device (13) has cell structure, formed of S-shaped elements (24), with overlapping levers (25).
3. An installation, according to claim 1 or 2, characterized in that each of the sieve-grid fractioning trays (7,23) is formed by the support (26), over which a perforated plate (27) is fixed, so that the perforation is performed in such a manner that passing openings (28) are obtained, located at a certain distance form each other, while the walls (29) of the passing openings (28) are located at an angle to the plane (A) of the plate (27).
4. An installation, according to one of the claims from 1 to 3, characterized in that the filling (6, 21) consists of a package of vertically oriented, perforated metal sheets (30), located parallel and at a distance to each other.
PCT/BG2003/000021 2003-01-03 2003-04-14 Instalation for separation of emulsion of water and hydrocarbons WO2004060529A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003227139A AU2003227139A1 (en) 2003-01-03 2003-04-14 Instalation for separation of emulsion of water and hydrocarbons

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BG107431A BG107431A (en) 2003-01-03 2003-01-03 Installation for the separation of water and hydrocarbon emulsion
BG107431 2003-01-03

Publications (1)

Publication Number Publication Date
WO2004060529A1 true WO2004060529A1 (en) 2004-07-22

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PCT/BG2003/000021 WO2004060529A1 (en) 2003-01-03 2003-04-14 Instalation for separation of emulsion of water and hydrocarbons

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AU (1) AU2003227139A1 (en)
BG (1) BG107431A (en)
WO (1) WO2004060529A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3592752A (en) * 1969-04-28 1971-07-13 Petrolite Corp System for treating well fluids containing crude oil admixed with large volumes of water
EP0629422A2 (en) * 1993-06-18 1994-12-21 Hyco Systems Inc. Method and apparatus for separating aqueous phase from fluid medium
US5560826A (en) * 1992-03-18 1996-10-01 Szereday; Pal Device for separating supernatant, in particular liquid pollutant, e.g. oil and the liquid, e.g. water

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3592752A (en) * 1969-04-28 1971-07-13 Petrolite Corp System for treating well fluids containing crude oil admixed with large volumes of water
US5560826A (en) * 1992-03-18 1996-10-01 Szereday; Pal Device for separating supernatant, in particular liquid pollutant, e.g. oil and the liquid, e.g. water
EP0629422A2 (en) * 1993-06-18 1994-12-21 Hyco Systems Inc. Method and apparatus for separating aqueous phase from fluid medium

Also Published As

Publication number Publication date
BG107431A (en) 2003-08-29
AU2003227139A1 (en) 2004-07-29

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