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WO1997034676A1 - Procede et systeme permettant d'eliminer un liquide sous forme de melange d'hydrocarbures bitumineux visqueux et d'eau - Google Patents

Procede et systeme permettant d'eliminer un liquide sous forme de melange d'hydrocarbures bitumineux visqueux et d'eau Download PDF

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Publication number
WO1997034676A1
WO1997034676A1 PCT/EP1997/001297 EP9701297W WO9734676A1 WO 1997034676 A1 WO1997034676 A1 WO 1997034676A1 EP 9701297 W EP9701297 W EP 9701297W WO 9734676 A1 WO9734676 A1 WO 9734676A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
container
separator
liquid
jet pump
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.)
Ceased
Application number
PCT/EP1997/001297
Other languages
German (de)
English (en)
Inventor
Erhard Crema
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kaibel and Sieber GmbH
Original Assignee
Kaibel and Sieber GmbH
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 Kaibel and Sieber GmbH filed Critical Kaibel and Sieber GmbH
Priority to DE19780224T priority Critical patent/DE19780224D2/de
Priority to AU25045/97A priority patent/AU2504597A/en
Publication of WO1997034676A1 publication Critical patent/WO1997034676A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C1/00—Working-up tar
    • C10C1/02—Removal of water
    • 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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/02—General arrangement of separating plant, e.g. flow sheets specially adapted for oil-sand, oil-chalk, oil-shales, ozokerite, bitumen, or the like

Definitions

  • the invention relates to a method and an arrangement for disposing of a liquid in the form of a mixture of viscous, bituminous hydrocarbons and water, in particular for disposing of a tar lake.
  • the present invention is based on the problem of a mixture of viscous, bituminous hydrocarbons and water, in particular water-containing tar and to dispose of oil residues in such a way that there is sufficient separation of the individual substances so that they are accessible for individual separate disposal.
  • the aim is to prevent the constituents from emulsifying even at high throughputs of the liquid to be disposed of.
  • the outlay on equipment should be kept low.
  • the problem is essentially solved in that the arrangement comprises
  • a second line which can be shut off from the suction point via a first valve and leads to a viscous bituminous hydrogen-containing first container
  • a second container directly or indirectly connected to the separator, with a water reservoir from the water separated in the separator and
  • a water jet pump arranged in the water reservoir, the suction side of which can be connected to a liquid-holding third container or the separator via a second valve or to the first container via a third valve.
  • the first container has a third line which can be shut off via a valve and which is optionally connected to the at least one suction point or the separator in its viscous, bituminous hydrocarbon collecting area.
  • the liquid to be disposed of can be sucked off and supplied to the desired extent in various receptacles by means of a single delivery unit in the form of a water jet pump arranged in a water reservoir, in which either the viscous bituminous hydrocarbons are separated from water or the former is accumulated, in order to prepare the viscous bituminous hydrocarbons such as tar or oil residues in a highly concentrated manner by further removing the water - specifically because of the evaporation generated by the water jet pump - so that they can be disposed of to the desired extent.
  • the water separated from the separator can be subjected to an aftertreatment - for example by a biological and / or ozone system - via the second container containing the water jet pump to such an extent that the water can be introduced into a conventional sewer system .
  • the liquid to be disposed of is sucked off via a plurality of suction points which are distributed uniformly over the liquid surface and which are heatable so that the liquid is sufficiently flowable.
  • the liquid-hydrocarbon mixture can first be sucked into a collecting or collecting container connected to the suction side of the water jet pump, from which the mixture flows to the separator, preferably in the form of a heatable sedimenter.
  • a second sedimentation stage which preferably consists of a lamella or inclined clarifier. From this, the largely purified water passes into the second container having the water jet pump, the accumulated water serving as a water reservoir for operating the water jet pump.
  • the viscous bituminous hydrocarbons, such as tar / oil concentrates, separated from the water by gravity in the separator are then sucked into the first container after reaching a certain layer thickness, which is monitored by measuring probes.
  • the connection between the intake points must be made beforehand and be shut off from the separator. Since the hydrocarbons are sucked into the vacuum-pressurized container, any water inclusions still present are evaporated when the hydrocarbon is introduced. In addition, this evaporation is facilitated by setting the interior temperature of the containers to, for example, 65 °.
  • the pressure in the container itself should be between 200 and 100 mbar. On the basis of these temperature and vacuum conditions, low-pressure evaporation of the water occurs.
  • a second step bypassing the separator, pasty hydrocarbons such as tar / oil mass, if appropriate mixed with solids which have accumulated in the bottom area of the separator stages, or correspondingly heavy masses from the basins in which the liquid to be disposed of is accumulated, can be taken directly into the first heated container can be sucked in.
  • the concentrate obtained in the separator stage in the bottom area is sucked through another container, which functions as a filter and preferably consists of a cylindrical container in which a rotating filter is arranged concentrically to the container through which the substance to be disposed of is disposed sucked and thus solids are retained.
  • the pasty hydrocarbons passing through the filter such as tar / oil mass, then enter the heated, pressurized first container, from which the hydrocarbons, such as tar / oil substance, can be conveyed to a bearing via a thick matter pump.
  • the pasty tar / oil masses are sucked out of the basin directly into the first container, the vacuum required for this being generated by the water jet pump.
  • the invention is also characterized by a method for disposing of a liquid of a mixture of viscous, bituminous hydrocarbons and water, characterized by the process steps
  • a further container forming a water reservoir for a water jet pump, with the vacuum generated by means of a water jet pump optionally sucking the liquid to be disposed of into the collecting container or bituminous hydrocarbons into another container in which residual water evaporates.
  • the suction points are heated. It is preferably provided that an additional pressure between 100-200 mbar and a temperature in the range between 40 and 45 ° C., in particular of approximately 65 ° C., are set in the further container.
  • the invention is characterized in that the bituminous hydrocarbons are sucked out of the separators and / or a basin such as a lake containing the liquid to be disposed of, by means of the pressure generated by the water jet pump into the further container.
  • Fig. 1 is a schematic diagram of an arrangement for disposing of a tar lake and Fig. 2 is a circuit diagram of the arrangement used for the disposal of the tar lake.
  • a tar lake 10 is shown in principle, from which tar and oil residues are to be disposed of.
  • the upper part of the lake has a high water content of, for example, approximately 80% and a tar content of approximately 20%.
  • the lake 10 is covered with a flexible cover 12 in which suction points 14 are evenly distributed.
  • the liquid to be disposed of is then sucked in via the heatable suction points 14.
  • the suction points 14 are connected in the following manner via lines 16, 18, which are hereinafter referred to as a single line 20 for reasons of uniformity, with the elements and units assigned and connected according to the invention in order to dispose of the liquid to the desired extent.
  • An arrangement according to the invention for disposing of the tar lake comprises, in accordance with the exemplary embodiment in FIG. 2, a first container in the form of two agitator containers 22, 24 connected in parallel to one another for receiving pasty tar or oil mass, and a water jet pump 26 serving as a delivery unit for receiving the second Container 28, a third container 30 to be disposed of liquid, a first separator 32 designed and heated as sediment and a further separator 34 in the form of a lamella or inclined clarifier.
  • the aforementioned containers 22, 24, 28, 30 and separators 32, 34 are connected to one another and to the water jet pump 26 as follows.
  • the line 20 emanating from the lake 10 leads into the collecting container 30, which is then automatically emptied when a predetermined filling level has been reached in the collecting container 30.
  • This can be done by level meters, sensors or solely by gravity, that is, by triggering a valve due to the weight in the container.
  • the container to be disposed of then passes from the collecting container 30 Liquid in the sediment 32, in which there is a rough separation between liquid, light tar and oil and solid-oil-tar mixture.
  • the solid substances accumulate in the bottom area 36 of the separator 32.
  • the low-viscosity tar oil can float on the surface in the separator 32, so that water can flow via partition walls ending at a distance from the bottom region 36 of the separator 32 via an overflow 38 into the second separator 34 in the form of the lamella or inclined clarifier in which other suspended matter is separated. Also entrained solids can be collected in the bottom area 39 of the lamella clarifier 34.
  • Purified water flows from the second separator 34 into the second container 28 in which the water jet pump 26 is arranged.
  • the water reservoir present in the container 28 serves as driving water for the water jet pump 26.
  • the suction side of the water jet pump 26 is optionally connected via a line 42 via a line 44, in which a valve 46 is located, to the collecting container 30 or via a line 48 connected to the agitator tanks 22, 24, which are preceded by shut-off valves 50, 52, which either shut off or release the line 48 leading to the suction side of the water jet pump 26.
  • a line 58 extends from the agitator containers 22, 24 - likewise lockable via valves 54 and 56 - which connects via a valve 60 to the line 20 leading to the suction points 14, or via a valve 62 to the storage container 30 is.
  • a further line 66 containing a valve 64 branches off from the line 58 leading to the return tank 22, 24 and opens into the first separator 22, specifically in the area where the low-viscosity tar oil collects.
  • a further line 68 which can be shut off on the bottom in relation to the separators 32, 34 and leads via a filter tank 70 to the agitator tanks 22, 24.
  • the line 58 can be connected via a valve 72.
  • the filter container 70 has an annular filter 74 which is penetrated by the liquid flowing via the line 68 in order to be connected from the bottom region of the filter container 70 via the valve 72 to the line 58 leading to the agitator containers 58.
  • the second container 28 forming the water reservoir for the water jet pump 26 can be connected to an intermediate treatment stage 76 in which the water overflowing from the water reservoir or the second container 28 is treated biologically or, for example, by means of ozone and then by means of a feed pump 78 into the sewage system can be delivered.
  • the agitator containers 22, 24 are in turn connected via a lockable line 80 to a thick matter pump 82, from which the substance extracted from the agitator containers 22, 24 can be fed to an intermediate container.
  • the arrangement according to the invention works as follows.
  • the liquid to be disposed of is sucked into the collecting container 30 via the suction points 14 as well as the lines 16 and 18 and thus the line 20, the line 58 being blocked off from the agitator containers 22, 24.
  • the suction side of the water jet pump 26 is connected to the collecting container 30 via the line 42 and the open valve 46.
  • the suction line 48 leading to the agitator containers 22, 24 is shut off via the valves 50, 52.
  • the line 68 coming from the bottom regions 36, 40 of the separators 32, 34 is also shut off via the valve 72.
  • the collecting container 30 is filled, it is opened, the valve 46 in the suction line 44 being blocked and the collecting container 30 being connected to the surroundings via a valve 84.
  • valves 54, 56 to the line 58 are open, so that when the valve 64 is open, the line 66 branching off the line 58 to the separator 32 is open.
  • valve 60 of line 20 and valve 62 of line 58 leading to reservoir 30 must be shut off. The suction of the hydrocarbon residues accumulated in the separator 32 accordingly takes place via the same unit, ie the water jet pump 26, via which the liquid is sucked out of the lake 10.
  • the agitator tanks 22, 24 are heated to an internal temperature of 65 ".
  • any water inclusions still present are evaporated.
  • the vapors which are drawn in by the water jet pump 26 via line 48, 42 are only contaminated to a small extent with pollutant of the water reserve in the container 28. Any contaminants which have been separated off are then removed in the aftertreatment stage 26.
  • the exhaust air leaving the second container 28 is also cleaned and is released to the environment via a filter 88. If the upper layer containing, for example, a water fraction of 80% and a tar fraction of 20% has been sucked out of the lake 10, the pasty soil mass is then suctioned off. This is also done via lines 20 and 58, the collecting container 30 and the separators 32, 34 being shut off. Furthermore, there is the possibility of conveying the tar substances accumulated in the separators 32, 34 in the previously described manner via the line 68, 58 via the filter container 70 into the agitator containers 22, 24 using the negative pressure generated by the water jet pump 26.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Sealing Material Composition (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un procédé et un système permettant d'éliminer un fluide sous forme de mélange d'hydrocarbures bitumineux visqueux et d'eau, notamment une nappe de goudron. A cet effet le liquide est aspiré à l'aide d'un éjecteur à eau (26) dans des cuves collectrices (30, 22, 24), ainsi que dans des séparateurs (32, 34). L'eau séparée du liquide et purifiée sert de réserve d'eau pour l'éjecteur à eau. Des hydrocarbures visqueux sont aspirés dans une cuve (22, 24) maintenue sous dépression afin de vaporiser l'eau résiduelle.
PCT/EP1997/001297 1996-03-15 1997-03-14 Procede et systeme permettant d'eliminer un liquide sous forme de melange d'hydrocarbures bitumineux visqueux et d'eau Ceased WO1997034676A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19780224T DE19780224D2 (de) 1996-03-15 1997-03-14 Verfahren und Anordnung zum Entsorgen einer Flüssigkeit in Form eines Gemisches aus zähflüssigen, bituminösen Kohlenwasserstoffen und Wasser
AU25045/97A AU2504597A (en) 1996-03-15 1997-03-14 Method and device for disposing of a liquid in the form of mixture of viscous bituminous hydrocarbons and water

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29604689.2 1996-03-15
DE29604689U DE29604689U1 (de) 1996-03-15 1996-03-15 Anordnung zum Entsorgen einer Flüssigkeit eines Gemischs aus zähflüssigen, bituminösen Kohlenwasserstoffen und Wasser

Publications (1)

Publication Number Publication Date
WO1997034676A1 true WO1997034676A1 (fr) 1997-09-25

Family

ID=8021024

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/001297 Ceased WO1997034676A1 (fr) 1996-03-15 1997-03-14 Procede et systeme permettant d'eliminer un liquide sous forme de melange d'hydrocarbures bitumineux visqueux et d'eau

Country Status (3)

Country Link
AU (1) AU2504597A (fr)
DE (2) DE29604689U1 (fr)
WO (1) WO1997034676A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5066407A (en) * 1990-07-16 1991-11-19 Furlow George R Petrochemical recovery machine
WO1992005115A1 (fr) * 1990-09-26 1992-04-02 Pec Research, Inc. Systeme de recuperation et de recyclage de petrole monte sur peniche
DE4122172A1 (de) * 1991-07-04 1993-01-14 Ahrens & Bode Masch & App Verfahren und vorrichtung zum wiederaufbereiten von waessrigen oel- und fetthaltigen reinigungsloesungen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5066407A (en) * 1990-07-16 1991-11-19 Furlow George R Petrochemical recovery machine
WO1992005115A1 (fr) * 1990-09-26 1992-04-02 Pec Research, Inc. Systeme de recuperation et de recyclage de petrole monte sur peniche
DE4122172A1 (de) * 1991-07-04 1993-01-14 Ahrens & Bode Masch & App Verfahren und vorrichtung zum wiederaufbereiten von waessrigen oel- und fetthaltigen reinigungsloesungen

Also Published As

Publication number Publication date
AU2504597A (en) 1997-10-10
DE29604689U1 (de) 1996-06-05
DE19780224D2 (de) 1999-09-23

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