EP0763464A1 - Floating facility for recovery of oily residues generated during tank washing in tanker ships - Google Patents
Floating facility for recovery of oily residues generated during tank washing in tanker ships Download PDFInfo
- Publication number
- EP0763464A1 EP0763464A1 EP96306540A EP96306540A EP0763464A1 EP 0763464 A1 EP0763464 A1 EP 0763464A1 EP 96306540 A EP96306540 A EP 96306540A EP 96306540 A EP96306540 A EP 96306540A EP 0763464 A1 EP0763464 A1 EP 0763464A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- facility
- recovery
- fuel
- tanks
- oily
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J4/00—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
- B63J4/004—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for for treating sludge, e.g. tank washing sludge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
Definitions
- the present invention relates to ship building and, in particular, to a floating facility for recovery of oily residues which are generated in the process of tank washing in tanker ships.
- Prior art floating facilities for recovery of oily residues generated during tank washing in tanker ships comprised setting tanks; a process chamber; vacuum pump connected with a pressure drop regulator, fuel tank and a fuel mixture stabilizing system, which includes a homogenizing disperser and a fuel stabilizing tank connected to the fuel tank of the facility, the process chamber being connected with the settling tanks via a disintegrator and an inert gas generator.
- the object of the invention is to provide a floating facility for recovery of oily residues generated during tank washing in taker ships which will ensure a high environmental safety degree and a maximum recovery of oily residues.
- a floating facility for recovery of oily residues, for cleaning the products generated during tank washing of tanker ships, the facility comprising:
- the provision of the rectifying column for breaking up oily residues into fractions, which is located in the process chamber, and of diesel and fuel oil accumulation tanks, which are arranged in parallel and connected on one side with the column, and on the other side with the pressure drop regulator, makes it possible to supply the homogenizing disperser with oily products having regular properties and composition (diesel oil or fuel oil), which simplifies the operation of the fuel mixture stabilizing system.
- the floating facility 1 comprises settling tanks 2 provided with oily water separators 3; a process chamber 4; a rectifying column 5 to break up oily residues into fractions; fuel tank 6, vacuum pump 7, pressure drop regulator 8, disintegrator 9, inert gas generator 10, light fractions accumulating tank 11, 12 and 13 for petrol, kerosene and benzene respectively, accumulating tank 14 for diesel oil, accumulating tank 15 for fuel oil; a fuel mixture stabilizing system including a homogenizing disperser 16, fuel mixture stabilizing tank 17, microprocessor 18, laser apparatus 19, infrared spectrum sensor 20, electron viscometer 21, homogenized mixture flash point analyzer 22, fuel tanks 23 and ballast water and oily residues accumulating tank 24.
- a fuel mixture stabilizing system including a homogenizing disperser 16, fuel mixture stabilizing tank 17, microprocessor 18, laser apparatus 19, infrared spectrum sensor 20, electron viscometer 21, homogenized mixture flash point analyzer 22, fuel tanks 23 and ballast water and oily residues accumulating tank 24.
- the settling tanks 2 communicate with the process chamber 4 via separators 3 wherein the rectifying column 5 is located connected with accumulating tanks 11, 12, 13, 14 and 15.
- the petrol accumulating tank 11 is connected with settling tanks 2.
- the vacuum pump 7 is connected on one side with fuel tank 6, and on the other side with diesel and fuel oil accumulating tanks 14 and 15 via the pressure drop regulator.
- the diesel and fuel oil accumlating tanks 14,15 are arranged in parallel.
- the vacuum pump 7 is also connected with homogenizing disperser 16, and, via fuel mixture stabilizing tank 17, with fuel tanks 23 of the floating facility 1.
- the homogenizing disperser 16 is connected with the pressure drop regulator 8 via the infrared spectrum sensor 20 and microprocessor 18.
- the homogenizing disperser 16 is connected via electron viscometer 21 and homogenized mixture flash point analyzer 22 with the microprocessor 18 and laser apparatus 19.
- the microprocessor 18 is provided with a feedback path with the homogenizing disperser 16.
- the process chamber 4 is connected, via disintegrator 9 and inert gas generator 10, with settling tanks 2 and the floating facility.
- the ballast water and oil residues accumulating tank 24 is connected on one side with the process chamber 4 and settling tanks 2, and on the other side with purification facilities 1 for recovery of oily residues as described below.
- the facility 1 receives, from tanker ships, oil cargo residues generated during washing of their tanks. These residues are left to clarify in the settling tanks 2 and separated by means of separators 3 into water and oily residues.
- the water is conveyed to the accumulation tank 24, and the oil residues to the process chamber 4, wherefrom, after preheating, they are conveyed to the rectifying column 5.
- the oily residues are broken up into fractions: petrol, kerosene, benzene, diesel oil and fuel oil.
- the lighter fractions - petrol, kerosene and benzene are conveyed to the accumulation tanks 11, 12 and 13 respectively, and the heavier ones: diesel oil and fuel oil to the accumulating tanks 14 and 15.
- oil sludge formed in the process chamber 4 is directed to the inert gas generator nozzle 10 via disintegrator 9 which changes the chemical and physical properties of the oil sludge transforming it into a finely dispersed liquid multiphase system, the remainder to the oil sludge being conveyed from the process chamber 4 to the accumulating tank 24.
- the petrol from accumulating tank 11 arrives to washing machines, which perform washing and stripping operations in the settling tanks 2.
- the washing and stripping of the settling tanks 2 is carried out in an atmosphere of inert gas produced by the inert gas generator 10.
- the diesel oil or fuel oil are conveyed from the accumulating tanks 14 and 15 by means of the vacuum pump 7 via the pressure drop regulator 8 to the homogenizing disperser 16.
- the dispersion degree, viscosity and flash point of the homogenized mixture are monitored constantly.
- the microprocessor 18 controls the operating mode of the homogenizing disperser 16, which ensures the assigned guaranteed parameters of the output mixture.
- the homogenized mixture in the fuel mixture stabilizing tank 17, on a signal generated by the microprocessor 18, is subject to electronic ray treatment by laser apparatus 19.
- the stabilized mixture from the tank 17 is conveyed to the fuel tanks 23 of the floating facility 1.
- the ballast water and oily residues from the accumulating tank 24 are discharged to a ship or shore treatment facility.
Abstract
Description
- The present invention relates to ship building and, in particular, to a floating facility for recovery of oily residues which are generated in the process of tank washing in tanker ships.
- Prior art floating facilities for recovery of oily residues generated during tank washing in tanker ships comprised setting tanks; a process chamber; vacuum pump connected with a pressure drop regulator, fuel tank and a fuel mixture stabilizing system, which includes a homogenizing disperser and a fuel stabilizing tank connected to the fuel tank of the facility, the process chamber being connected with the settling tanks via a disintegrator and an inert gas generator.
- The disadvantage of the above prior art is that the oily residues arriving from the process chamber to the homogenizing disperser do not have regular properties or composition, which complicates the operation of the fuel mixture stabilizing system, and in that the oil content of residues arriving from the settling tanks at purification facilities is too high.
- The object of the invention is to provide a floating facility for recovery of oily residues generated during tank washing in taker ships which will ensure a high environmental safety degree and a maximum recovery of oily residues.
- In accordance with the present invention there is provided a floating facility for recovery of oily residues, for cleaning the products generated during tank washing of tanker ships, the facility comprising:
- settling tanks;
- a process chamber connected to the settling tanks via a disintegrator and inert gas generator,
- a rectifying column for breaking up the oily residues into fractions;
- a rectifying column for breaking up the oily residues into fractions;
- accumulating tanks for lighter oil fractions, diesel oil and fuel oil;
- a pump connected to a pressure drop regulator;
- a fuel tank; and
- a fuel mixture stabilizing system, which includes a homogenizing disperser and a fuel mixture stabilizing tank connected to the fuel tank.
- The provision of the rectifying column for breaking up oily residues into fractions, which is located in the process chamber, and of diesel and fuel oil accumulation tanks, which are arranged in parallel and connected on one side with the column, and on the other side with the pressure drop regulator, makes it possible to supply the homogenizing disperser with oily products having regular properties and composition (diesel oil or fuel oil), which simplifies the operation of the fuel mixture stabilizing system.
- The provision of settling tanks with oily water separators makes it possible to discharge to purification facilities water containing only a minimum amount of oily residues. This, as well as the provision of accumulating tanks for light fractions, diesel oil and fuel oil, which are connected with the rectifying column, makes it possible to achieve a higher purification degree and environmental safety of the floating facility.
- A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing which shows a schematic representation of the floating facility and a flow chart of the oil residues recovery process.
- Referring to the drawing the
floating facility 1 comprises settlingtanks 2 provided withoily water separators 3; aprocess chamber 4; a rectifyingcolumn 5 to break up oily residues into fractions;fuel tank 6,vacuum pump 7,pressure drop regulator 8,disintegrator 9,inert gas generator 10, lightfractions accumulating tank tank 14 for diesel oil, accumulatingtank 15 for fuel oil; a fuel mixture stabilizing system including ahomogenizing disperser 16, fuelmixture stabilizing tank 17,microprocessor 18,laser apparatus 19,infrared spectrum sensor 20,electron viscometer 21, homogenized mixtureflash point analyzer 22,fuel tanks 23 and ballast water and oilyresidues accumulating tank 24. - The
settling tanks 2 communicate with theprocess chamber 4 viaseparators 3 wherein the rectifyingcolumn 5 is located connected with accumulatingtanks petrol accumulating tank 11 is connected withsettling tanks 2. Thevacuum pump 7 is connected on one side withfuel tank 6, and on the other side with diesel and fueloil accumulating tanks tanks vacuum pump 7 is also connected withhomogenizing disperser 16, and, via fuelmixture stabilizing tank 17, withfuel tanks 23 of thefloating facility 1. Thehomogenizing disperser 16 is connected with thepressure drop regulator 8 via theinfrared spectrum sensor 20 andmicroprocessor 18. Thehomogenizing disperser 16 is connected viaelectron viscometer 21 and homogenized mixtureflash point analyzer 22 with themicroprocessor 18 andlaser apparatus 19. Themicroprocessor 18 is provided with a feedback path with thehomogenizing disperser 16. - The
process chamber 4 is connected, viadisintegrator 9 andinert gas generator 10, with settlingtanks 2 and the floating facility. The ballast water and oilresidues accumulating tank 24 is connected on one side with theprocess chamber 4 and settlingtanks 2, and on the other side withpurification facilities 1 for recovery of oily residues as described below. - The
facility 1 receives, from tanker ships, oil cargo residues generated during washing of their tanks. These residues are left to clarify in thesettling tanks 2 and separated by means ofseparators 3 into water and oily residues. The water is conveyed to theaccumulation tank 24, and the oil residues to theprocess chamber 4, wherefrom, after preheating, they are conveyed to the rectifyingcolumn 5. In the rectifyingcolumn 5 the oily residues are broken up into fractions: petrol, kerosene, benzene, diesel oil and fuel oil. The lighter fractions - petrol, kerosene and benzene are conveyed to theaccumulation tanks tanks - Some part of oil sludge, formed in the
process chamber 4, is directed to the inertgas generator nozzle 10 viadisintegrator 9 which changes the chemical and physical properties of the oil sludge transforming it into a finely dispersed liquid multiphase system, the remainder to the oil sludge being conveyed from theprocess chamber 4 to the accumulatingtank 24. - The petrol from accumulating
tank 11 arrives to washing machines, which perform washing and stripping operations in thesettling tanks 2. The washing and stripping of thesettling tanks 2 is carried out in an atmosphere of inert gas produced by theinert gas generator 10. - The diesel oil or fuel oil are conveyed from the accumulating
tanks vacuum pump 7 via thepressure drop regulator 8 to thehomogenizing disperser 16. - During the fuel stabilizing system operation the dispersion degree, viscosity and flash point of the homogenized mixture are monitored constantly.
- The signals from the
infrared spectrum sensor 20, monitoring the dispersion degree of the homogenizated mixture; from theelection viscometer 21, monitoring viscosity; and from theflash point analyser 22, arrive at themicroprocessor 18, controlling, by means of thepressure drop regulator 8, the proportion of diesel (fuel) oil and of fuel fromtank 6 arriving to be homogenized. At the same time, themicroprocessor 18 controls the operating mode of thehomogenizing disperser 16, which ensures the assigned guaranteed parameters of the output mixture. - When the mixture contains synthetic compounds, the homogenized mixture in the fuel
mixture stabilizing tank 17, on a signal generated by themicroprocessor 18, is subject to electronic ray treatment bylaser apparatus 19. The stabilized mixture from thetank 17 is conveyed to thefuel tanks 23 of thefloating facility 1. The ballast water and oily residues from the accumulatingtank 24 are discharged to a ship or shore treatment facility.
Claims (4)
- A floating facility (1) for recovery of oily residues, for cleaning the products generated during tank washing of tanker ships the facility comprising: settling tanks (2);a process chamber (4) connected to the settling tanks via a disintegrator (9) and inert gas generator (10);a rectifying column (5) for breaking up the oily residues into fractions;accumulating tanks (11,12,13,14,15) for lighter oil fractions, diesel oil and fuel oil;a pump connected to a pressure drop regulator (8);a fuel tank (2); anda fuel mixture stabilizing system, which includes a homogenizing disperser (16) and a fuel mixture stabilizing tank (17) connected to the fuel tank (23).
- The floating facility (1) for recovery of oily residues as claimed in claim 1, wherein the rectifying column (5) is located in the process chamber (4).
- A floating facility (1) for recovery of oily residues as claimed in claim 1 or claim 2, wherein the settling tanks (2) are provided with oily water separators (3).
- A floating facility (1) for recovery of oily residues as claimed in any of preceding claims, wherein the accumulating tanks (14,15) for diesel oil and fuel oil are arranged in parallel and connected to on one side with the rectifying column (5), and on the other side with a pressure drop regulator (8).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
UA95094137 | 1995-09-13 | ||
UA95094137A UA21912C2 (en) | 1995-09-13 | 1995-09-13 | floating Station for utilization of oil waste |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0763464A1 true EP0763464A1 (en) | 1997-03-19 |
EP0763464B1 EP0763464B1 (en) | 1999-07-28 |
Family
ID=21689075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96306540A Expired - Lifetime EP0763464B1 (en) | 1995-09-13 | 1996-09-09 | Floating facility for recovery of oily residues generated during tank washing in tanker ships |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0763464B1 (en) |
AT (1) | ATE182538T1 (en) |
DE (1) | DE69603423T2 (en) |
UA (1) | UA21912C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101177817B1 (en) | 2010-06-29 | 2012-08-28 | 삼성중공업 주식회사 | Storage tank maintenance method for floating offshore platform |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101099690B1 (en) | 2008-12-17 | 2011-12-28 | 삼성중공업 주식회사 | Inert gas supply system and LNG Floating Production Storage Offloading having the same |
FR3075754B1 (en) * | 2017-12-22 | 2020-01-03 | Gaztransport Et Technigaz | LIQUEFIED GAS-PROPELLED VESSEL |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3520181A1 (en) * | 1985-06-05 | 1986-12-11 | Artur Richard 6000 Frankfurt Greul | Floating platform for universal use |
DE4205885C1 (en) * | 1992-02-26 | 1993-03-18 | Bernard 4358 Haltern De Meinken | System for sepg. oil slops or emulsions into water, petrol, oil and solids - in which slop oil is heated in circuit comprising heater, column and pump and slop oil from bottom of column is cooled and sepd. into clean oil phase and solid phase |
-
1995
- 1995-09-13 UA UA95094137A patent/UA21912C2/en unknown
-
1996
- 1996-09-09 EP EP96306540A patent/EP0763464B1/en not_active Expired - Lifetime
- 1996-09-09 DE DE69603423T patent/DE69603423T2/en not_active Expired - Fee Related
- 1996-09-09 AT AT96306540T patent/ATE182538T1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3520181A1 (en) * | 1985-06-05 | 1986-12-11 | Artur Richard 6000 Frankfurt Greul | Floating platform for universal use |
DE4205885C1 (en) * | 1992-02-26 | 1993-03-18 | Bernard 4358 Haltern De Meinken | System for sepg. oil slops or emulsions into water, petrol, oil and solids - in which slop oil is heated in circuit comprising heater, column and pump and slop oil from bottom of column is cooled and sepd. into clean oil phase and solid phase |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101177817B1 (en) | 2010-06-29 | 2012-08-28 | 삼성중공업 주식회사 | Storage tank maintenance method for floating offshore platform |
Also Published As
Publication number | Publication date |
---|---|
DE69603423T2 (en) | 1999-12-16 |
ATE182538T1 (en) | 1999-08-15 |
DE69603423D1 (en) | 1999-09-02 |
UA21912C2 (en) | 1998-04-30 |
EP0763464B1 (en) | 1999-07-28 |
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