WO1998031446A1 - Dispositif et procede pour recuperer des solvants contenus dans un melange d'hydrocarbures contamines - Google Patents

Dispositif et procede pour recuperer des solvants contenus dans un melange d'hydrocarbures contamines Download PDF

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Publication number
WO1998031446A1
WO1998031446A1 PCT/EP1998/000192 EP9800192W WO9831446A1 WO 1998031446 A1 WO1998031446 A1 WO 1998031446A1 EP 9800192 W EP9800192 W EP 9800192W WO 9831446 A1 WO9831446 A1 WO 9831446A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
hydrocarbon mixture
head
jacket
solvent
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/EP1998/000192
Other languages
German (de)
English (en)
Inventor
Friedrich HÖPFNER
Jürgen KUBE
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.)
Colorsal Gesellschaft fur Farbgrosskopien und Werbekonzeptionen Mbh
Original Assignee
Colorsal Gesellschaft fur Farbgrosskopien und Werbekonzeptionen Mbh
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 Colorsal Gesellschaft fur Farbgrosskopien und Werbekonzeptionen Mbh filed Critical Colorsal Gesellschaft fur Farbgrosskopien und Werbekonzeptionen Mbh
Priority to AU58637/98A priority Critical patent/AU5863798A/en
Priority to EP98901969A priority patent/EP0952880A1/fr
Publication of WO1998031446A1 publication Critical patent/WO1998031446A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B01D5/0066—Dome shaped condensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0011—Heating features
    • B01D1/0041—Use of fluids
    • B01D1/0052—Use of a liquid transfer medium or intermediate fluid, e.g. bain-marie
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives

Definitions

  • the invention relates to a device for the recovery of solvents from a contaminated hydrocarbon mixture and an associated method.
  • a whole series of devices and methods are known from the prior art for recovering solvents from a contaminated hydrocarbon mixture.
  • devices are generally known for separating solvents from impurities such as resins, pigments, lacquers, inks, oils, etc. by means of distillation.
  • Such devices have a number of disadvantages due to their design.
  • these devices each comprise a container with a screw-on lid, a heating device assigned to the container for evaporating the solvent and a cooling device arranged outside the container in the form of a cooling coil or the like, so that continuous operation of these devices is therefore neither possible nor provided.
  • these devices are not suitable for recovering high-boiling or high-boiling solvents from a contaminated hydrocarbon mixture, since the distances traveled by the evaporated solvent are too great and, consequently, the evaporated solvent condenses before the actual cooling device is reached.
  • a container generally has a large capacity, for example 150 liters and more. This has a particularly disadvantageous effect with regard to the efficiency of these devices and the yields to be achieved therewith and with regard to the heat losses which occur with increasing duration, since the paths to be covered by the evaporated solvent are from the surface of the contaminated Hydrocarbon mixtures to the cooling device become longer and longer with increasing duration.
  • the object of the invention is to provide a device and a method for recovering solvents from a contaminated hydrocarbon mixture which are of a particularly simple design, are small in size and inexpensive, enable continuous operation, high efficiency and low Have heat losses and are suitable for both low and high boiling solvents.
  • the device according to the invention comprises a container with a jacket, to which a heating device for evaporating the solvent is assigned, a head closing the jacket, to which a cooling device for condensing the evaporated solvent is assigned, and an inlet for introducing the contaminated hydrocarbon mixture into the Container, the inside of the head of the container having an upwardly tapering, essentially conical or the like-shaped surface for condensing the solvent and a conical or the like-shaped surface adjoining, arranged below the surface, collecting channel for removing the condensed solvent .
  • the inventive direction is thus characterized by a particularly simple and inexpensive construction, which also allows at least largely continuous operation through the constant supply of contaminated hydrocarbon mixture.
  • the device according to the invention is also particularly suitable for the recovery of solvents with any boiling points.
  • the inside of the container preferably has a conical or the like-shaped surface with an angle ⁇ of approximately 10 ° to 60 °, preferably approximately, on the inside
  • the interior of the container according to the features of claim 6 is connected to a device for generating a vacuum, which is assigned in particular to the outlet for removing the condensed solvent.
  • a device for generating a vacuum which is assigned in particular to the outlet for removing the condensed solvent.
  • the head of the container is provided on the outside in accordance with the features of claim 7 with cooling fins to which the cooling device, in particular a fan, is assigned, which on the one hand simplifies the construction of the device, can also be made compact and on the other hand the condensation of the evaporated solvent further is favored.
  • the features of claim 8 are of extraordinary importance for increased safety when operating the device according to the invention, according to which the head of the container is placed on the jacket of the container in a self-supporting manner. Even in the event of an explosion or deflagration of the vaporized solvent and / or the contaminated hydrocarbon mixture, the head lifts off the jacket of the container for a short time to relieve pressure.
  • claims 9 to 12 are advantageous for an extremely simple construction of the container, which moreover allow increased safety for the operating personnel and sufficient tightness of the interior of the container with respect to the environment as well as an interruption in heat conduction.
  • a container or the like and / or a filter for the preliminary separation of impurities, in particular pigments, dirt or similar particles from the contaminated hydrocarbon mixture, are preferably arranged upstream of the container of the device according to the invention.
  • claims 23 to 27 also serve for a simple, fast and, if appropriate, automatic and continuous removal of the residue remaining on the bottom from the container.
  • FIG. 1 is a schematic, perspective view of an embodiment of a device designed according to the invention for the recovery of solvents from a contaminated hydrocarbon mixture, together with an upstream separation container and filter,
  • FIG. 2 shows a schematic representation of the device according to the invention according to FIG. 1 with a partially longitudinally cut container for separating the solvent according to the invention
  • FIG. 3 is an exploded, schematic view of an embodiment of a container according to the invention for separating the solvent with a jacket and a head according to FIG. 2 in an enlarged view,
  • FIG. 4 is a plan view of the jacket of the container according to the invention shown in FIG. 3,
  • FIG. 5 is a partially broken longitudinal section through the container for separating the solvent according to the invention according to line V-V- in Fig. 4 in the region of the section X-X in Fig. 2 in an enlarged view,
  • Fig. 6 is a partially broken longitudinal section through the container for separating the solvent according to the invention according to line VI-VI in Fig. 4, and
  • FIG. 7 shows a partially broken longitudinal section through the embodiment of the separation container according to FIG. 1 in the area of section VII-VII in FIG. 1 in enlarged view.
  • 1 and 2 is an embodiment of a device 10 designed according to the invention for the recovery of solvents from a contaminated hydrocarbon mixture and in particular of high-boiling hydrocarbons, such as ultraviolet detergents used in the printing industry, from a solvent-resin mixture with a shown a small amount of colloidal color pigments.
  • high-boiling hydrocarbons such as ultraviolet detergents used in the printing industry
  • the container 12 is mounted in a schematically illustrated frame 14, which preferably has height-adjustable feet 16 or the like supporting elements to compensate for uneven floors and thus possibly to adjust the level of the container 12.
  • the container 12 comprises a jacket 12 'which is associated with a heating device 18 for evaporating the solvent, a head 12' 'which closes the jacket 12' and which is associated with a cooling device 20 for condensing the evaporated solvent, and an inlet 22 for introducing the contaminated hydrocarbon mixture in the container 12.
  • the jacket 12 'of the container 12 is essentially hollow-cylindrical and comprises a bottom 24.
  • the bottom 24 of the jacket 12 takes the heating device 18, for example in the form of a heating medium such as Oil, flowed through heating coils or electrical conductors, so that the contaminated hydrocarbon mixture does not come into direct contact with the heating device 18.
  • a heating medium such as Oil
  • the latter embodiment has the disadvantage of increased design effort.
  • the jacket 12 'of the container 12 is, as seen in FIG. represented mathematically, additionally surrounded by a jacket 25 for thermal insulation.
  • the jacket 25 for heat insulation is made, for example, in a manner known per se from a material for thermal insulation, such as rock / glass wool or the like, which lies on the outside of the jacket 12 ', and a thin shell, preferably surrounding or enclosing the material for the heat insulation, made of steel , Sheet metal etc. formed.
  • a material for thermal insulation such as rock / glass wool or the like
  • a thin shell preferably surrounding or enclosing the material for the heat insulation, made of steel , Sheet metal etc. formed.
  • a measuring probe 26 is additionally arranged on the jacket 12 'of the container 12 in the region of the bottom 24 in order to permanently monitor the actual temperature of the jacket 12' and thus the heat transfer from the heating device 18 to the jacket 12 'or the contaminated hydrocarbon mixture to eat.
  • the head 12 ′′ of the container 12 has on the inside an upwardly tapering, essentially conical or the like-shaped surface 28 for condensing the solvent.
  • the angle ⁇ of the inside conical or the like-shaped surface 28 of the head 12 ′′ of the container 12 is approximately 10 ° to 60 °, preferably approximately 25 ° to 40 ° and in particular 30 ° (see FIG. 3).
  • the head 12 ′′ is provided with a collecting trough 30 for removing the condensed solvent, which connects to the conical or the like-shaped surface 28 and is arranged below the surface 28.
  • the collecting trough 30 essentially coincides with a plane which is perpendicular to the sheet plane, approximately at the base 32 of the head 12 ′′ of the container 12, and communicates with an outlet 34 for removing the condensed solvent. In the embodiment of the device 10, the collecting trough 30 is thus arranged in the horizontal plane.
  • the collecting trough 30 in a plane inclined to the horizontal plane (not shown), the outlet 34 for removing the condensed solvent then being arranged in a region of the collecting trough 30 which is towards the base 32 of the head 12 '' of the container 12 is located closest adjacent.
  • a gradient can be obtained, on the basis of which the condensed solvent is at all times passed completely through the collecting trough 30 to the outlet 34 and can flow continuously through the outlet 34.
  • a accumulation of condensed solvent in the collecting trough 30, for example as a result of unevenness in the floor and an associated (slight) inclination of the frame 14 and the container 12, are thereby reliably excluded.
  • Such accumulation of condensed solvent can, however, already be prevented by the height-adjustable feet 16 of the frame 14.
  • the interior of the container 12 is connected to a device for generating a vacuum (not shown), which is in particular associated with the outlet 34 for removing the condensed solvent.
  • a vacuum pump directly to the outlet 34 for removing the condensed solvent.
  • the head 12 ′′ of the container 12 is provided on the outside with cooling fins 36, to which the cooling device 20, in particular a fan 38, is assigned.
  • the fan 38 interacts with baffles 40 which guide the air sucked in by the fan 38 past the cooling fins 36 of the head 12 ′′ of the container 12.
  • a very special advantage of the device 10 according to the invention is that the head 12 ′′ of the container 12 is placed self-supporting on the jacket 12 ′ of the container 12. In this way, a much improved safety in the recovery of solvents from a contaminated hydrocarbon mixture can be obtained.
  • the head 12 ′′ of the container 12 lifts for a short time against its own weight to relieve pressure in the event of an explosion or deflagration of the evaporated solvent and / or the contaminated hydrocarbon mixture.
  • the head 12 ′′ of the container 12 is provided with an annular circumferential groove 42, undercut or the like, in which a corresponding annular circumferential projection 44 or the like engages, which engages on the front side of the jacket 12 'of the container 12 is provided.
  • a seal 46 in particular made of silicone, is additionally arranged between the groove 42 and the projection 44. 5 that the projection 44 has the smallest possible contact surface 45 which is in direct contact with the seal 46.
  • the contact surface 45 is designed as a tapered contact edge. The resulting linear contact between the jacket 12 'and the seal 46 on the head 12' 'further reduces heat transfer.
  • the head 12 ′′ of the container 12 is additionally preferably on three contact surfaces 48 or the like according to FIGS. 4 and 6 on the jacket 12 'of the container 12 centerable.
  • the contact surfaces 48 are preferably evenly distributed over the circumference of the jacket 12 'of the container 12.
  • the contact surfaces 48 are attached to the outside on the annular circumferential projection 44.
  • the contact surfaces 48 are designed as tapered contact points. In this way, heat transfer between the jacket 12 'and the head 12' 'of the container 12 should also be counteracted. There is only a small amount of play, for example 1/10 mm, between the outwardly extending contact surfaces 48 of the jacket 12 'and the inwardly directed contact wall 49 of the head 12' 'interacting with the contact surfaces 48. to ensure that the head 12 '' can temporarily lift off from the jacket 12 'of the container 12 if, contrary to expectations, an explosion or deflagration of the solvent and / or the contaminated hydrocarbon mixture takes place inside the container 12.
  • the head 12 ′′ and / or the jacket 12 ′ of the container 12 is / are made of aluminum.
  • a high efficiency of the device 10 according to the invention can be achieved overall due to good heat transfer between the heating device 18, the jacket 12 'and the contaminated hydrocarbon mixture on the one hand and the cooling device 20, the head 12' 'and the evaporated solvent on the other hand.
  • the container 12 has a maximum fill level 50 Capacity for the contaminated hydrocarbon mixture of up to about 25 1, in particular up to about 10 1 and very preferably up to about 5 1.
  • the ratio height / inner diameter of the casing 12 'of the container 12 is advantageously approximately 1 / 1.5 to 1/4.
  • a relatively high overall volume of the device 10 and, at the same time, a high yield of recovered solvent can be achieved due to a selectively supplyable heat or cold by such a comparatively small volume.
  • such a comparatively small volume can provide greater security, since even in the event of an unpredictable explosion or deflagration, only small amounts of evaporated solvent or contaminated hydrocarbon mixture can escape from the container 12.
  • the device 10 according to the invention shown in FIG. 1 further comprises a separation container 52 or the like for separating at least a large amount of impurities.
  • the separation container 52 is arranged upstream of the container 12 and is connected to the container 12 via the inlet 22 for introducing the contaminated hydrocarbon mixture.
  • the first major separation of the contaminants is carried out in the simplest way by means of decanting in the separation container 52.
  • a suction lance 54 is arranged in the separation container 52, which, according to FIG. 7, is provided with a bore 56 which is spaced from the bottom 58 of the separation container 52.
  • a pump 60 for example a palm-type pump 60, at the end of the inlet line 62 enables the slope to be overcome once when changing the separation container 52 in a simple manner. However, it is also possible to apply a vacuum to the separation container 52 in order to overcome the slope.
  • a filter 64 is further arranged between the container 12 and the separation container 52, which is arranged upstream of the container 12, in order, for example, to remove further impurities, dirt or similar particles, such as grains of sand etc. to separate.
  • the inlet 22 of the container 12 for introducing the contaminated hydrocarbon mixture can be closed via a (solenoid) valve 66.
  • the valve 66 at the inlet 22 of the container 12 is connected to a control device 68 for opening and closing the valve 66.
  • the control device 68 also interacts with a measuring probe 70, in particular a fill level sensor, in order to regulate the fill level 50 of the contaminated hydrocarbon mixture introduced or to be introduced into the container 12.
  • the measuring probe 70 is also assigned to the inlet 22.
  • the inlet 22 of the container 12 opens approximately centrally into the head 12 ′′ of the container 12 and comprises an inlet tube 72, which in particular extends into the jacket 12 ′ of the container 12.
  • the measuring probe 70 for detecting the fill level 50 or for determining the maximum fill level 50 of the contaminated hydrocarbon mixture introduced or to be introduced into the container 12 is then directly attached to the inlet pipe 72 for the sake of simplicity.
  • the bottom 24 of the casing 12 'of the container 12 is further assigned an outlet 74 for withdrawing the residue remaining on the bottom 24 from the container 12.
  • the outlet 74 can be closed via a (solenoid) valve 76.
  • the valve 76 at the outlet 74 of the jacket 12 'of the container 12 for Deduction of the residue remaining on the bottom 24 is connected to a control device 78 for opening and closing the valve 76.
  • the control device 78 additionally comprises a (programmable) timer 80. In this way, for example after an operating time of 6 hours, the timer 80 can do this depending on the volume of the container 12 Open valve 76 via control device 78 for a period of, for example, approximately 1 minute, in which the residue deposited on bottom 24 can in the meantime be completely emptied.
  • valve 76 at the outlet 74 of the jacket 12 'of the container 12 for removing the residue remaining on the bottom is connected to the control device 78 for opening and closing the valve 76, which in an alternative and / or cumulative embodiment with a Measuring probe 82, in particular a flow meter, cooperates, which is assigned to the outlet 34 for removing the condensed solvent.
  • the opening or subsequent closing of the valve 76 then takes place automatically as a function of a recovered amount of solvent, which is determined by the measuring probe 82, and, if appropriate, additionally by the timer 80 after a certain period of time for safety reasons.
  • the residue remaining on the bottom 24 of the casing 12 'of the container 12 can also be removed by inserting a lining, not shown, in particular a disposable bag, sack or the like, preferably made of plastic, into the casing 12' of the container 12 before Introducing the unpurified hydrocarbon mixture into the container 12 can be used.
  • a lining not shown, in particular a disposable bag, sack or the like, preferably made of plastic
  • the heating device 18 and the cooling device 20 can preferably be regulated in a temperature and / or time-controlled manner by a control device 84. It is possible to automatically preset the control device 84 or alternatively from Hand to operate depending on the respective application.
  • the control device 84 cooperates with the further control devices 68 and 78 for opening and closing the valves or all control devices 68, 78 and 84 are combined to form a single control unit (not shown).
  • control or regulation is advantageously carried out without contact in order to avoid any spark formation and thus the risk of explosion or explosion of the solvent and / or the contaminated hydrocarbon mixture in the container 12.
  • control devices 68, 78 and 84 can be equipped with safety switches 86, 88, 90 in order to be able to switch off the device 10 according to the invention immediately, if necessary, from the outside if irregularities in the operation of the device 10 occur.
  • the method for recovering solvents from a contaminated hydrocarbon mixture is carried out in the following way:
  • the contaminated hydrocarbon mixture is first introduced into the container 12 and then in the container 12 to evaporate the solvent to a temperature of about 80 to
  • the evaporated solvent is then condensed on a conical or the like-shaped surface 28 of the head 12 ′′ of the container 12.
  • the condensed solvent is finally discharged from the container 12 via a collecting trough 30 at the head 12 ′′ of the container 12 below the conical or the like-shaped surface 28, while the residue remaining at the bottom 24 of the container 12 is removed from the container 12.
  • the contaminated hydrocarbon mixture is first introduced into a separation container 52, which is arranged upstream of the container 12.
  • a separation container 52 which is arranged upstream of the container 12.
  • the hydrocarbon mixture which has been freed of at least a large amount of impurities, in particular pigments is passed through a filter 64 which is arranged between the separation container 52 and the container 12 is.
  • the contaminated hydrocarbon mixture is kept in the container 12 at a constant fill level 50.
  • the fill level 50 of the hydrocarbon mixture in the container 12 is regulated via a valve 66 and a measuring probe 70, which are assigned to the inlet 22 of the container 12.
  • a continuous and also automatic loading of the container 12 can be achieved with a number of advantages.
  • Such a continuous operation of the device 10 enables the dimensions of the container 12 to be kept extremely small. On the one hand, this has an extremely advantageous overall effect on the efficiency of the device 10 according to the invention, since in particular the heat losses during the evaporation process due to a targeted introduction of heat are kept small.
  • the safety of the device 10 according to the invention increases at the same time by the Risk of injury to operating personnel in the event of an explosion or deflagration as a result of only a small amount of evaporated solvent and / or contaminated hydrocarbon mixture being released.
  • the contaminated hydrocarbon mixture in the container 12 is preferably kept at a constant fill level 50, which corresponds to a maximum fill level 50 of the jacket 12 ′ of the container 12. In this way, the distances that the evaporated or evaporated solvent has to travel can be kept short and, in connection with this, the yield of recovered solvent can additionally be increased.
  • the hydrocarbon mixture in the container 12 is preferably heated to a temperature of in particular approximately 155 to approximately
  • this temperature range corresponds to a boiling temperature range of a number of high-boiling hydrocarbons, such as ultraviolet detergents, which are used in the printing industry.
  • a heating device 18 assigned to the bottom 24 of the container 12 and a cooling device 20 assigned to the head 12 ′′ of the container 12 are controlled by a control device 68, 78, 84 in a temperature and / or time-controlled manner.
  • the solvent which is condensed on the conical or the like-shaped surface 28 of the head 12 ′′ of the container 12 is passed over the collecting trough 30, which is arranged approximately at the level of the base 32 of the head 12 ′′, and an outlet 34 passed from the container 12 into a collecting container or the like (not shown).
  • the residue that remains at the bottom 24 of the container 12 is drawn off via an outlet 74 of the container 12, which can be closed by a valve 76.
  • the valve 76 at the outlet 74 for removing the residue can either be controlled and / or via a measuring probe 82, in particular a flow meter, which is arranged at the outlet 34 for the removal of the condensed solvent.
  • a UV detergent from Felix Böttcher GmbH & Co., Cologne, Federal Republic of Germany, with the trade name "Feboclean UV” was recovered from a solvent-resin mixture with colloidal color pigments using the method according to the invention using the device 10 according to the invention .
  • the UV detergent has a change in state at -54 ° C or 168 ° C, a density of 0.94 g / ml at 20 ° C, a vapor pressure of 1.1 mbar at 20 ° C, a flash point at 58 ° C and an ignition temperature at 624 ° C.
  • the device 10 has a container 12, the jacket 12 'of which has a capacity of approximately 1.5 l.
  • a first major separation of the colloidal color pigments is first carried out in the separation container 52 by means of decanting.
  • the suction lance 54 is designed so that suction of the soil sludge is largely avoided.
  • the predominantly pigment-free solvent-resin mixture still contains a small amount of red amine 6-G, a very intense, ultraviolet-reflecting dye, which is added to some red offset colors to enhance the luminosity (optical brightener). This dye is in the UV wash medium, alcohol and water, molecularly fully soluble.
  • an additional (fine) filter 64 After passing through an additional (fine) filter 64, the solvent-resin mixture then passes through the inlet 22 into the container 12.
  • the valve 66 closes after the surface of the contaminated hydrocarbon mixture or solvent-resin mixture has passed the measuring probe 70 which is attached to the inlet pipe 72 projecting into the casing 12 'of the container 12.
  • the heating device 18 and the cooling device 20 are put into operation by the control device 84 during the filling of the container 12 or immediately after the filling of the container 12 has ended, around the container 12 or its jacket
  • the fill level 50 is selected to be the maximum, and is therefore almost at the level or directly below the base 32 of the head 12 ′′ of the container 12, even the quickly cooling and heavy solvent vapors rise in the shortest possible way and condense directly on the cone. or the like-shaped surface 64 of the head 12 ′′ of the container 12.
  • the liquefied solvent vapors then flow to the collecting trough 30 and from there via the outlet 34 into a collecting container, not shown, for example a canister.
  • valve 76 is opened by the control device 78 and the associated timer 80 for about 1 minute, so that the solvent-resin residue, which has meanwhile been concentrated, can flow out of the jacket 12 'of the container 12.
  • valve 66 is opened via the control device 68 and the container 12 is filled again with contaminated hydrocarbon mixture up to its maximum fill level 50.
  • the present device 10 according to the invention and the associated method according to the invention for the recovery of solvents from a contaminated hydrocarbon mixture are not restricted to the solvents specified by way of example. So it is quite conceivable to also recover solvents from contaminated hydrocarbon mixtures that are formed from several components with different boiling points.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

L'invention concerne un dispositif pour récupérer des solvants dans un mélange d'hydrocarbures contaminés, comportant un récipient (12) pourvu d'une chemise (12'), auquel est adjoint un dispositif de chauffage (18) permettant l'évaporation du solvant, une tête (12'') obturant la chemise (12'), à laquelle est adjoint un système de refroidissement (20) pour condenser le solvant évaporé, et une admission (22) destinée à l'introduction du mélange d'hydrocarbures contaminés dans le récipient (12). La tête (12') du récipient (12) possède sur sa face intérieure une surface (28) de condensation du solvant, qui remonte vers le haut et présente sensiblement la forme d'un cône ou similaire, ainsi qu'un canal collecteur (30) adjacent situé au-dessous de ladite surface (28) et destiné à l'extraction du solvant condensé. L'invention concerne également un procédé correspondant.
PCT/EP1998/000192 1997-01-14 1998-01-14 Dispositif et procede pour recuperer des solvants contenus dans un melange d'hydrocarbures contamines Ceased WO1998031446A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU58637/98A AU5863798A (en) 1997-01-14 1998-01-14 Device and method for recovering solvents from a hydrocarbon mixture contaminated with impurities
EP98901969A EP0952880A1 (fr) 1997-01-14 1998-01-14 Dispositif et procede pour recuperer des solvants contenus dans un melange d'hydrocarbures contamines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19701006.7 1997-01-14
DE1997101006 DE19701006C2 (de) 1997-01-14 1997-01-14 Vorrichtung und Verfahren zur Rückgewinnung von Lösungsmitteln aus einem verunreinigten Kohlenwasserstoffgemisch

Publications (1)

Publication Number Publication Date
WO1998031446A1 true WO1998031446A1 (fr) 1998-07-23

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PCT/EP1998/000192 Ceased WO1998031446A1 (fr) 1997-01-14 1998-01-14 Dispositif et procede pour recuperer des solvants contenus dans un melange d'hydrocarbures contamines

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Country Link
EP (1) EP0952880A1 (fr)
AU (1) AU5863798A (fr)
DE (1) DE19701006C2 (fr)
WO (1) WO1998031446A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105241185A (zh) * 2014-06-26 2016-01-13 池州龙华医药化工有限公司 一种高效真空干燥机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19810833B4 (de) * 1998-03-12 2004-08-12 Herz, Helmut, Dr.-Ing. Einrichtung zur thermischen Behandlung von Flüssigkeiten
GB2461740B (en) * 2008-06-23 2012-09-19 Operational Group Ltd Improvements in and relating to the processing of solvents and/or volatile components or the like
DE102011121650A1 (de) * 2011-12-19 2013-06-20 Hans Heidolph Gmbh & Co. Kg Destillationsvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069663A2 (fr) * 1981-07-03 1983-01-12 Pierre Harquevaux Dispositif de nettoyage et procédé de récupération de liquide de nettoyage
CH657538A5 (de) * 1982-05-03 1986-09-15 Feller & Zingg Gmbh Vorrichtung zur industriellen destillation.
DE3535279A1 (de) * 1985-10-03 1987-04-09 Walter Ziegler Verfahren und geraet zur laufenden erzeugung und ausnutzung von kondenswasser
JPS63128344A (ja) * 1986-11-18 1988-05-31 Fuji Photo Film Co Ltd 現像廃液処理装置
US5286350A (en) * 1992-12-14 1994-02-15 Huang Shan Meng Water distiller

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8230206U1 (de) * 1982-10-27 1984-04-05 Huber, Walter, Dr., 8050 Freising Geraet zum destillieren von fluessigkeiten, beispielsweise von wasser
DE3421342A1 (de) * 1984-06-08 1986-02-06 OFRU Recycling GmbH + Co KG, 6072 Dreieich Verfahren zur vereinfachten aufbereitung von loesungen mit harzartigen bestandteilen
DE8803855U1 (de) * 1988-03-22 1988-05-11 Pietschmann, Helmut, Dipl.-Ing. (FH), 7516 Karlsbad Aufsatz auf ein Kochgeschirr, zur Herstellung destillierten Wassers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069663A2 (fr) * 1981-07-03 1983-01-12 Pierre Harquevaux Dispositif de nettoyage et procédé de récupération de liquide de nettoyage
CH657538A5 (de) * 1982-05-03 1986-09-15 Feller & Zingg Gmbh Vorrichtung zur industriellen destillation.
DE3535279A1 (de) * 1985-10-03 1987-04-09 Walter Ziegler Verfahren und geraet zur laufenden erzeugung und ausnutzung von kondenswasser
JPS63128344A (ja) * 1986-11-18 1988-05-31 Fuji Photo Film Co Ltd 現像廃液処理装置
US5286350A (en) * 1992-12-14 1994-02-15 Huang Shan Meng Water distiller

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 383 (P - 770) 13 October 1988 (1988-10-13) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105241185A (zh) * 2014-06-26 2016-01-13 池州龙华医药化工有限公司 一种高效真空干燥机

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