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WO2003068688A1 - Dispositif pour separer et/ou eliminer un solvant contenu dans une solution contaminee par evaporation dudit solvant - Google Patents

Dispositif pour separer et/ou eliminer un solvant contenu dans une solution contaminee par evaporation dudit solvant Download PDF

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Publication number
WO2003068688A1
WO2003068688A1 PCT/NL2002/000059 NL0200059W WO03068688A1 WO 2003068688 A1 WO2003068688 A1 WO 2003068688A1 NL 0200059 W NL0200059 W NL 0200059W WO 03068688 A1 WO03068688 A1 WO 03068688A1
Authority
WO
WIPO (PCT)
Prior art keywords
reservoir
vapour chamber
condensation
evaporation
temperature
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/NL2002/000059
Other languages
English (en)
Inventor
Jacob Van Berkel
Johann Henricus Houf
Marinus Adriaan Potter
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.)
Solar Dew BV
Original Assignee
Solar Dew BV
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 Solar Dew BV filed Critical Solar Dew BV
Priority to AU2002233820A priority Critical patent/AU2002233820A1/en
Priority to PCT/NL2002/000059 priority patent/WO2003068688A1/fr
Publication of WO2003068688A1 publication Critical patent/WO2003068688A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
    • B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/343—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas
    • B01D3/346—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas the gas being used for removing vapours, e.g. transport gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
    • B01D61/364—Membrane distillation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/142—Solar thermal; Photovoltaics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation

Definitions

  • a device for separation and/or purification by means of evaporation of a solvent from a contaminated solution A device for separation and/or purification by means of evaporation of a solvent from a contaminated solution.
  • the present invention relates to a system for separation and/or purification of a solvent from a contaminated solution, comprising a device for separation and/or purification of the solvent by means of evaporation of the solvent and subsequent condensation of at least a part of said vaporised solvent, and a reservoir for the contaminated solution, wherein the device comprises a vapour chamber, with an evaporation surface having a first temperature for evaporating the solvent and a condensation surface, having a second temperature for condensation of the vaporised solvent and means for removing the condensed solvent from the vapour chamber.
  • the system according to the present invention is specially adapted for separation of water from a contaminated aqueous solution.
  • the system according to the present invention for instance can be used for desalination of said aqueous solution.
  • the purification of liquids can be achieved in many ways. When the volatility of the components differs considerably, one way is to evaporate the most volatile component and condense the vapour. In case of desalination, this thermal separation or purification process involves evaporation and subsequent condensation of water from a salt-water mixture.
  • Solar energy for desalination is used primarily on small and medium scale ( ⁇ 100 m 3 ).
  • Fossil fuel based desalination systems are used on large scale as well (25000 m 3 ).
  • membranes In most contemporary industrial desalination systems, evaporation takes place from a free water surface.
  • water-permeable membranes are used to maintain an interface between the salt-water mixture and the vapour.
  • the advantages of using membranes are that static, off level water surfaces can be configured and that entrainment salt containing micro droplets from the water surface into the water vapour is eliminated.
  • micro-porous membranes used for membrane desalination.
  • nano-filtration and micro-filtration techniques are also used, wherein mechanical energy (pressure) is used for the purification process.
  • pressure mechanical energy
  • micro-pores transmit the passage of water vapour but block the passage of liquid water.
  • the object of the present invention is to provide a system for separation and/or purification of a solvent from a contaminated solution, as described above, wherein cost reduction can be achieved due to low-cost solar collection and solar heat storage.
  • the object according to the present invention is achieved in that the vapour chamber is at least partly submerged in the reservoir for the contaminated solution, in that the evaporation surface is closed off by the contaminated solution, and in that means are provided for heating the contaminated solution in the reservoir. Any heat can be used to increase the temperature of the contaminated solution.
  • the solution for instance can be heated be means of waste heat in an industrial environment.
  • the reservoir is adapted for thermal heating by solar energy.
  • the vapour chamber is submerged in the reservoir for contaminated solution, in that the condensation surface adjoins the contaminated solution in the reservoir.
  • the vapour chamber is completely submerged in the contaminated solution.
  • An important aspect of the present invention is the fact that the evaporation and condensation components of the purification system are integrated in the reservoir for the contaminated solution.
  • the reservoir for contaminated solution for instance in the form of a solar pond, will store the solar energy absorbed in the contaminated solution.
  • the first cost reduction is attained in that a reservoir for contaminated solution, in the form of a solar pond, requires only a single water tight bottom liner.
  • the bottom liner can be naturally available or configured as a synthetic polymer or clay liner.
  • the device for separation and/or purification of the solvent according to the present invention simply can be positioned in the contaminated solution, wherein temperature differences between the evaporation surface and the condensation surface will be used in order to obtain the required separation and/of purification.
  • the device for separation and/or purification of the solvent according to the present invention is characterised in that the condensation surface is positioned vertically above the evaporation surface. Moreover it is possible that under the condensation surface, above the evaporation surface, collecting means are provided for collecting the condensed solvent at the condensation surface.
  • the system further can be improved by connecting to the collecting means for the condensed solvent a line for removing the condensed solvent from the vapour chamber.
  • the reservoir for contaminated solution is formed as a temperature stratified pond, the evaporation surface being closed off by a temperature layer having a first relatively high temperature and the condensation surface adjoining a second temperature layer having a relatively low temperature.
  • a stratified pond In a stratified pond several temperature layers are present, each having a different temperature. In such a stratified pond, heat loss is suppressed by immobilising the water content of the pond. Solar heat which is absorbed at the bottom, heats up the bottom layers of the pond.
  • the evaporation surface of the device for separation and/or purification of the solvent must be positioned inside a relatively warm temperature layer, heated up by solar heat.
  • the condensation surface should adjoin a layer having a lower temperature.
  • salt-stratified pond When in the present text the wording "temperature layer” is used, reference is made to a layer in the fluid having a certain mean temperature, wherein this mean temperature differs from the mean temperature of an adjacent layer in the fluid. According to the present invention it is possible to use a so-called salt-stratified pond. In salt-stratified pond, natural convection, which normally would occur due to the low identity of the heated bottom layer water, is eliminated by increasing the density of the bottom layers with salt. As a result the water density in a stratified pond increases with depth, despite the increase of temperature. Due to the low diffusivity of salt in water, this stratification only requires occasional maintenance. Alternatively a stratified pond can be used wherein stabilisation is achieved by means of construction components such as baffles and/or sheets.
  • the evaporation surface of the vapour chamber is positioned in a first reservoir, and wherein the condensation surface of said vapour chamber is positioned in a second reservoir, the temperature of the first reservoir exceeding the temperature of the second reservoir.
  • the evaporation surface of the device for separation and/or purification of the solvent can be positioned in a first pond having a relatively high temperature. Inside this pond the temperature may be uniform. That means that according to this embodiment stratification can be omitted.
  • the condensation surface of the device for separation an/or purification of the solvent can be positioned in a second pond having a lower temperature than the first pond.
  • the temperature difference between the first and second pond can be enhanced for instance by covering the first pond by means of a transparent cover. It is also possible to provide the first pond with a larger area, in order that in the first pond more solar heat can be absorbed.
  • the vapour chamber comprises an intermediate portion, the intermediate portion being positioned inside a third reservoir, wherein the temperature of the third reservoir is between the respective temperatures of the first and second reservoir.
  • the pond with the higher temperature being the pond having the evaporation surface positioned therein.
  • the pond with the lower temperature having the condensation surface positioned therein.
  • the system comprises a first device having a first vapour chamber with a first evaporation surface and a first condensation surface and a second device having a second vapour chamber with a second evaporation surface and a second condensation surface, wherein the second evaporation surface of the second device is positioned in the proximity of the first condensation surface of the first device in order that the condensation heat produced at said first condensation surface is used in order to enhance evaporation at said second evaporation surface.
  • the condensation heat which is produced at the condensation surface is re-used for evaporation of a further portion of the contaminated solution.
  • Regeneration of the condensation heat can be achieved in that the second device is positioned vertically above the first device.
  • a stratified pond having multiple temperature layers can be used.
  • the first evaporation surface of the first device is positioned in a lower relatively warm temperature layer.
  • the condensation surface of said first device is positioned in an intermediate temperature having a lower temperature. In this temperature also the evaporation surface of the second device is present.
  • the condensation surface of said second device is positioned inside a temperature layer having even a temperature lower than the temperature of the intermediate layer. It is of course possible to further provide the system with a third, fourth etc. device.
  • the evaporation surface of the first device is positioned in a first pond having a uniform temperature.
  • the condensation surface of the first device and the evaporation of a second device are both positioned in an intermediate pond having an intermediate temperature.
  • the condensation surface of the second device in that case would be positioned inside a third pond having a relatively low temperature.
  • the first solar pond can be covered by means of a transparent cover in order to eliminate heat losses.
  • the vapour chamber is provided with means for urging vapour produced at the evaporation surface in the direction of the condensation surface.
  • the means for urging vapour for instance can comprise a fan, ventilator, jet ejector or compressor positioned inside a duct or line which is part of the vapour chamber.
  • the evaporation surface is formed by an opening or passage through the wall of the vapour chamber, in that the surface of the contaminated solution in the reservoir directly adjoins the vapour chamber.
  • a carrier gas is present in the vapour chamber, the carrier gas being pressurised, in order to prevent the contaminated solution to completely enter the vapour chamber.
  • an air-lock vapour space is present inside the vapour chamber of the device for separation and/or purification of the solvent.
  • the evaporation surface is provided with a membrane, providing the interface between the contaminated solution and the interior of the vapour chamber.
  • This membrane can have the form of a homogeneous membrane or alternatively as a micro-porous membrane.
  • This will involve the risk of entrainment of salt molecules when the device according to the present invention is used for desalination.
  • Figure 1 shows a device for evaporation/condensation according to the present invention.
  • Figure 2 shows the device according to figure 1 submerged in a stratified solar pond.
  • Figure 3 shows a device for evaporation/condensation according to the present invention, wherein the evaporation surface is provided with a membrane.
  • Figure 4 shows multiple devices according to figure 3 positioned inside a salt stratified pond.
  • Figure 5 shows a single membrane evaporation/condensation loop.
  • Figure 6 shows multiple devices according to figure 5 positioned in a stratified solar pond.
  • Figures 7a and 7b show a cross section of possible tubular membrane/membrane support structures.
  • Figure 8 schematically shows a uniform temperature solar pond having a single submerged device for evaporation/condensation according to the present invention, the condenser surface of the device penetrating through the insulation cover of said solar pond.
  • Figure 9 shows schematically a regenerative system according to the present invention, using uniform temperature solar ponds.
  • Figure 10a and 10b show a device having an evaporation and a condensation surface in form of a container.
  • Figure 11 shows an embodiment of the system according to the present invention having a centred tubular vapour chamber provided with a coaxial chamber containing the contaminated solution and having a tubular insulation layer.
  • Figure 1 shows a first embodiment of a device for evaporation and condensation 1 according to the present invention.
  • the device 1 is provided with an evaporation surface 2 being in open connection between contaminated solution 3 and a vapour chamber 4.
  • the vapour chamber 4 is accommodated with two sidewalls 5 and a top wall 6.
  • the upper part of the sidewalls 5 is used as condensation surface 7.
  • collecting means 8 are present in order to collect the condensed vapour 9 on the condensation surface using gravity.
  • the collecting means 8 are connected to a line 10 for transporting the condensed vapour from the vapour chamber.
  • vapour chamber 4 is pressurised by means of a carrier gas, such as air, to compensate to the outside waterstatic heat.
  • a carrier gas such as air
  • FIG. 2 shows a solar pond 12 containing the contaminated solution 3.
  • the solar pond 12 has the form of a stratified solar pond.
  • the contaminated solution is free to absorb solar heat produced by the sun 13.
  • temperature layers are produced for instance using standard salt stratification techniques. Alternatively stratification by means of mechanical measures such as baffles or sheets is possible.
  • the evaporation surface 2 of the device 1 according to figure 1 is positioned in a lower relatively warm temperature layer.
  • the condensation surface 7 of the device 1 is positioned in a higher, relatively cold temperature layer.
  • the line 10 for transporting the condensed vapour from the vapour chamber 4 is connected to a condensator transport line 20, in order to bring the condensed vapour on shore.
  • FIG. 3 shows the device 30 according to the present invention wherein the evaporation surface is formed by a membrane 32.
  • the membrane 32 can have the form of a microporous membrane. More advantageously the membrane has the form of a homogeneous membrane.
  • These homogeneous membranes operate quite differently from the microporous membranes in the sense that (in the case of desalination) water is solved at one side of the membrane, diffuses to the vapour side of the membrane where it subsequently evaporates in the vapour space. This permeation and evaporation process is turned “pervaporation". Due to the absence of micro-pores, the membrane is less sensible to fouling and scaling.
  • An additional advantage is that the homogeneous membrane (unlike the micro-porous membranes) also blocks air molecules.
  • carrier gas can be dispensed of entirely, leaving only water vapour in the vapour chamber 4.
  • the main advantage of the evacuated system operation is the efficient evaporation, transport and condensation of water vapour.
  • the membrane 32 in that case must be supported by means of a support structure 33. This can have the form of a mesh or open cell ceramic-like structure.
  • the carrier gas could comprise hydrogen, helium air or any other suitable gas.
  • the carrier gas could be replaced by a relatively light, less dense fluid. This would lead to a mechanism of membrane liquid / liquid separation (permeation).
  • FIG 4 multiple devices 30 according to figure 3 are positioned on top of each other.
  • Figure 4 shows a solar pond 12 containing the contaminated solution 3.
  • the condensation heat produced in the lower device 30 can be used in order to enhance evaporation in the intermediate device 30 positioned above the lower device 30.
  • the condensation heat produced in intermediate device 30 can be used in order to enhance evaporation in the top device 30.
  • the devices 30 are connected to condensate transport lines 20 in order to transport the condensate on shore.
  • Figure 5 shows a further configuration of a device for evaporation and condensation according to the present invention 40, having a duct-like configuration.
  • the evaporator surface 42 and the condensation surface 47 are constructed as submerged ducts. These ducts can have various shapes such as circular or rectangular.
  • the transport of vapour from the evaporator to the condenser can be performed by means of natural convection. Alternatively forced convection can be used, using a fan 11. Only water vapour is present in the vapour chamber 44. The water vapour pressure difference drives between the transport surface and the condensation surface.
  • a fan or a compressor having reference number 11 is used.
  • the vapour- or vapour/carrier gas mixture can be compelled by means of a vapour or vapour-gas ejector.
  • FIG. 6 shows a solar pond in a configuration which resembles the configuration according to figure 4.
  • the solar pond 12 has the form of a stratified solar pond. Evaporation and condensation in a lower portion of the solar pond 12 will produce condensation heat which can be re-used using regeneration in an intermediate temperature layer. The condensation heat used in the intermediate layer moreover can be used in order to enhance the evaporation process in a top layer.
  • Similar to figures 2 and 4 figure 6 shows and condensate transport line 20 in order to remove condensates from the respective devices 40.
  • Figure 7a and 7b show ducts having a circular cross section.
  • the ducts can be used in the device according to figures 5 and 6.
  • the membrane 42 and the support structure 48 can be conveniently shaped as for instance flexible tubes which attain a circular form due to an internal overpressure of a carrier gas/vapour mixture.
  • the carrier gas can be disposed of.
  • a device 1, 30 or 40 as described above is operated in a single solar pond 52 having a uniform temperature. Since the condensation heat in this case can not be rejected in the contaminated solution 3 itself it must be rejected outside an insulation cover 53. Regeneration of condensation heat using multiple ponds is outlined in figure 9.
  • the system according to figure 9 is provided with a first solar pond 61 having a relatively high temperature. Moreover, the system according to figure 9 comprises two intermediate ponds 62 and 63 having an intermediate temperature. Moreover, the system comprises a pond 64 having a relatively low temperature. In the relatively high temperature pond 61 evaporation will take place. After leaving the high temperature pond partial condensation will take place in the successive intermediate ponds 62 and 63. In these ponds the condensation heat becomes available for partial evaporation into a countercurrent vapour duct. Finally in the low temperature pond 64 the condensation is completed and heat is rejected to the ambient. The surface areas and the thermal insulation of the ponds are chosen respective to their functions.
  • the layer having the highest temperature is positioned at the bottom of the pond.
  • the heat loss from this relative warm layer to the environment is blocked by means of the adjacent temperature layers.
  • the top layer in the pond may be the layer having the highest temperature.
  • a device 70 which will refer to as a "solar dew container".
  • the system according to figures 10a and 10b consists of a super-surface shallow water container 71 enclosing an evaporating duct 72. External condensation takes place in a condenser 77. Water vapour is circulated by means of natural or forced convection using a fan 11.
  • the transparent insulation top cover 79 is applied to suppress heat losses of the water container to the ambient.
  • the bottom part of the container is insulated by means of an insulation layer 76. Regeneration is achieved by series connection of several water container segments 71 similarly as outlined in conjunction with figure 9.
  • FIG 11 an evaporator tube is shown which can be viewed upon as an extreme form of a shallow solar pond.
  • the evaporator according to figure 11 will be referred to as a "water jacketed solar dew tube".
  • Device 80 according to figure 11 comprises a vapour chamber 84, a coaxial water jacket 81 and an insulation layer 89.
  • the membrane tube is supported by means of rigid support or pressurised carrier gas, similarly to the configuration according to figure 7a and 7b.
  • a homogeneous membrane 82 is present inside the water-jacketed solar dew tube.
  • the entire evaporator according to figure 11 can be made of flexible material. This facilitates easy transport and installation to the operation side.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

L'invention concerne un dispositif (1) servant à séparer et/ou éliminer un solvant contenu dans une solution contaminée (3) par évaporation dudit solvant, puis par condensation d'au moins une partie du solvant évaporé, ladite solution étant stockée dans un réservoir. Ce dispositif (1) comprend une chambre à vapeur (4), comportant une surface d'évaporation (2) présentant une première température permettant l'évaporation du solvant (3) et une surface de condensation (7) présentant une seconde température permettant la condensation du solvant évaporé, ainsi que des moyens pour évacuer le solvant condensé (9) de la chambre à vapeur (4). L'invention se caractérise en ce que ladite chambre à vapeur (4) est au moins partiellement submergée dans le réservoir de stockage de la solution contaminée (3), en ce que la surface d'évaporation (2) est recouverte par la solution contaminée et en ce que des moyens sont utilisés pour chauffer ladite solution dans le réservoir.
PCT/NL2002/000059 2002-02-11 2002-02-11 Dispositif pour separer et/ou eliminer un solvant contenu dans une solution contaminee par evaporation dudit solvant Ceased WO2003068688A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002233820A AU2002233820A1 (en) 2002-02-11 2002-02-11 A device for separation and/or purification by means of evaporation of a solvent from a contaminated solution
PCT/NL2002/000059 WO2003068688A1 (fr) 2002-02-11 2002-02-11 Dispositif pour separer et/ou eliminer un solvant contenu dans une solution contaminee par evaporation dudit solvant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL2002/000059 WO2003068688A1 (fr) 2002-02-11 2002-02-11 Dispositif pour separer et/ou eliminer un solvant contenu dans une solution contaminee par evaporation dudit solvant

Publications (1)

Publication Number Publication Date
WO2003068688A1 true WO2003068688A1 (fr) 2003-08-21

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PCT/NL2002/000059 Ceased WO2003068688A1 (fr) 2002-02-11 2002-02-11 Dispositif pour separer et/ou eliminer un solvant contenu dans une solution contaminee par evaporation dudit solvant

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AU (1) AU2002233820A1 (fr)
WO (1) WO2003068688A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115138263A (zh) * 2022-07-27 2022-10-04 嘉兴联合化学有限公司 一种特种有机硅苯基单体制备与分离提纯装置
US11925901B2 (en) 2022-03-30 2024-03-12 Donaldson Company, Inc. System and method for reclaiming solvent

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820744A (en) * 1956-11-05 1958-01-21 Lighter Stephen Floating solar still
US3385769A (en) * 1965-06-29 1968-05-28 United Aircraft Corp Apparatus for reclaiming water
FR2262646A2 (en) * 1971-11-10 1975-09-26 Bel Hamri Bernard Prodn. of fresh water from sea-water - using flexible tube from sea level to high altitude
EP0039197A1 (fr) * 1980-04-25 1981-11-04 W.L. GORE & ASSOCIATES, INC. Appareil de distillation
WO2001010784A2 (fr) * 1999-08-06 2001-02-15 E.I. Du Pont De Nemours And Company Alambic a eau et procede d'utilisation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820744A (en) * 1956-11-05 1958-01-21 Lighter Stephen Floating solar still
US3385769A (en) * 1965-06-29 1968-05-28 United Aircraft Corp Apparatus for reclaiming water
FR2262646A2 (en) * 1971-11-10 1975-09-26 Bel Hamri Bernard Prodn. of fresh water from sea-water - using flexible tube from sea level to high altitude
EP0039197A1 (fr) * 1980-04-25 1981-11-04 W.L. GORE & ASSOCIATES, INC. Appareil de distillation
WO2001010784A2 (fr) * 1999-08-06 2001-02-15 E.I. Du Pont De Nemours And Company Alambic a eau et procede d'utilisation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11925901B2 (en) 2022-03-30 2024-03-12 Donaldson Company, Inc. System and method for reclaiming solvent
CN115138263A (zh) * 2022-07-27 2022-10-04 嘉兴联合化学有限公司 一种特种有机硅苯基单体制备与分离提纯装置

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