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EP1988983A1 - Cartouche filtrante permettant de récupérer des hydrocarbures halogénés - Google Patents

Cartouche filtrante permettant de récupérer des hydrocarbures halogénés

Info

Publication number
EP1988983A1
EP1988983A1 EP07726408A EP07726408A EP1988983A1 EP 1988983 A1 EP1988983 A1 EP 1988983A1 EP 07726408 A EP07726408 A EP 07726408A EP 07726408 A EP07726408 A EP 07726408A EP 1988983 A1 EP1988983 A1 EP 1988983A1
Authority
EP
European Patent Office
Prior art keywords
filter
filter cartridge
cartridge according
halogenated hydrocarbons
container
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
EP07726408A
Other languages
German (de)
English (en)
Inventor
Bernd Fuesting
Peter Muenn
Hartmut Welke
Helmut Stach
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.)
Zeosys GmbH
Original Assignee
Zeosys 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
Priority claimed from DE102006008320A external-priority patent/DE102006008320B4/de
Priority claimed from DE102006027127A external-priority patent/DE102006027127A1/de
Application filed by Zeosys GmbH filed Critical Zeosys GmbH
Priority to EP07726408A priority Critical patent/EP1988983A1/fr
Publication of EP1988983A1 publication Critical patent/EP1988983A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B01J20/18—Synthetic zeolitic molecular sieves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/0087—Environmental safety or protection means, e.g. preventing explosion
    • A61M16/009—Removing used or expired gases or anaesthetic vapours
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/0087—Environmental safety or protection means, e.g. preventing explosion
    • A61M16/009—Removing used or expired gases or anaesthetic vapours
    • A61M16/0093—Removing used or expired gases or anaesthetic vapours by adsorption, absorption or filtration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1045—Devices for humidifying or heating the inspired gas by using recovered moisture or heat from the expired gas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/22—Carbon dioxide-absorbing devices ; Other means for removing carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B01D53/0415—Beds in cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0241—Anaesthetics; Analgesics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/206—Organic halogen compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40086—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by using a purge gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/414—Further details for adsorption processes and devices using different types of adsorbents
    • B01D2259/4141—Further details for adsorption processes and devices using different types of adsorbents within a single bed
    • B01D2259/4145—Further details for adsorption processes and devices using different types of adsorbents within a single bed arranged in series
    • B01D2259/4146—Contiguous multilayered adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4533—Gas separation or purification devices adapted for specific applications for medical purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0454—Controlling adsorption
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S95/00—Gas separation: processes
    • Y10S95/90—Solid sorbent
    • Y10S95/902—Molecular sieve
    • Y10S95/903—Carbon

Definitions

  • the invention relates to a filter cartridge for the recovery of low-boiling halogenated hydrocarbons (HKW), in particular for collecting volatile anesthetics from the expired air of anesthetized patients, ie inhalation anesthetics.
  • HKW low-boiling halogenated hydrocarbons
  • Easily vaporizable anesthetics commonly used in medical practice, such as halothane, sevoflurane, enflurane, isofiurane, and desfiuran are chlorofluorocarbons or fluorocarbons, which are usually completely released into the environment during or after anesthesia, and can harm patients and medical personnel.
  • the prior art for the removal of HKW from associated gases is characterized by adsorption filters, which act on the basis of microporous sorbents such as activated carbons and zeolites for the purpose of temporary retention and storage of the gases.
  • Reactive activated carbons are already suitable for the purification of process or exhaust air (DE 37 13 346, DE 39 35 094 and DE 40 03 668).
  • the prerequisites for a high sorption capacity of the sorption devices, combined with optimum regenerability, are already set forth in the documents DD 239 947, DE 36 28 858 and DE 37 31 688.
  • the recovery of HKW can be done economically with a high degree of recovery by desorption only at high temperatures and low pressures. As a result of the heat treatment, however, structural damage to the sorbents as well as the formation of halogen-containing decomposition products of HKW occur.
  • Zeolites have a high thermal stability and a low catalytic activity with respect to the formation of toxic products from HKW.
  • the sorption of water on these so-called hydrophobic zeolites is noticeably suppressed in favor of HKW.
  • a known method for separating and recovering inhalation anesthetics (DE 42 08 521) relates to the adsorption on an activated carbon or zeolite filter with the exception of the accompanying nitrous oxide, wherein the remaining further associated gases are then fed to a catalytic afterburning.
  • the required temperatures up to 550 ° C are still uneconomically high.
  • the device recoverable drugs are irreversibly withdrawn.
  • a hydrophobic zeolitic molecular sieve with a narrow pore distribution is used which selectively separates active substances of the group of halogenated ethers of higher hydrocarbons.
  • the desorption is carried out in a canister by means of a nitrogen carrier gas stream at 30 ° C to 150 ° C.
  • the anesthetics are condensed and recovered. Temperatures of 30 ° C to 40 ° C, however, were not sufficient for an economically high degree of recovery. On the other hand, temperatures above about 140 ° C. led to discoloration of the sorbent particles as a result of structural aging and the formation of coke deposits.
  • the spatial separation of the adsorption from the regeneration circuit does not yet meet the economic requirements of a circulation of exhalation gases.
  • the filter cartridge for recovering halogenated hydrocarbons comprises a container (19) with a gas inlet (3), wherein the container (19) has a filter insert (20) and a closure (2) with a lid (4) and with a gas outlet (5) connected and by means of seals (6; 6 ') and a sieve plate (21) with the lid (4) is combined, a zeolite (8) in the filter insert (20) with openings (7), wherein the Filter insert (20) with its bottom to recesses (9) in the container (19) adapts.
  • a sensor for level monitoring is located at the filter output a sensor for level monitoring.
  • the filter cartridge consists essentially of a container with a jacket around a filter cartridge and with the gas inlet for the Exhalationsgase, which is connected via a closure with a lid and this with the gas outlet.
  • the closure is expedient a screw or bayonet connection.
  • the filter cartridge has a filter cartridge with an upper ring with a screen plate for its attachment, which is inserted by means of sealing rings between the upper edge of the container and the lid and clamped there.
  • the filter insert with its lateral openings in the wall and in the bottom is the zeolite in the form of a Bulk.
  • an annular gap for the inhalation gases flowing into it and for the return of the regenerating water phase.
  • openings for the passage of gas and liquid are provided only in a larger and lower wall portion of the container while they are missing in the wall portion of the lid or closed by the fitting in the upper sealing portion wall of the container.
  • the filter cartridge has a high degree of slimming, which is that the length of the lower portion with the openings in the filter cartridge considerably exceeds the diameter of this insert and the length of the portion with the missing openings.
  • the flexible filter element adapts with its lower bottom to the depressions in the container. At the same time, a bead-like lower tolerance gap is released, through which water draining from the filter insert can flow into the return flow with little hindrance.
  • the depressions are introduced in the form of a reinforcing rib in the bottom of the container.
  • the filter cartridge is holistically made of a suitable polymeric material with greatly reduced swelling capacity compared to inhalation anesthetics.
  • the gas inlet is optionally connected via connectors, plugs and hoses with a gas supply and a steam supply.
  • the steam supply simultaneously forms a return for the steam generator.
  • the lid with the gas outlet leads on the one hand to an exhaust air duct and to a suction for exempt from Exhalationsgasen
  • the gas inlet is also connected via connectors either to the anesthesia machine or to the steam generator.
  • the filter cartridge When loading the filter cartridge is a multi-stage adsorption of exhalation gases in cross flow.
  • the loading of the successive and still “fresh” stages always takes place with the same initial charge of exhalation gases.
  • the loading of the gases gradually decreases to the desired residual charge, even small residence times are sufficient to achieve the required filter yield even with large throughputs of gases or vapors.
  • the gases pass through bedding layers, which simultaneously serve as mist eliminators.
  • the mode of operation of the filter cartridge is optimized in the interest of a high space utilization of sorptionsulphate part.
  • the anesthetic gases used thus have at the top of the filter insert with the hydrophobic zeolites on "good" breakthrough curves, that is with a steep and clearly local and temporal characteristics of the transition by forming a sharp boundary between the loaded and still unladen parts of the bed of zeolite ,
  • activated carbons in particular hydrophobic Molekularsiebkohlen can be used with a water absorption capacity below 2% by mass in the filter, wherein the temperature is desirably lowered for the desorption of HKW.
  • Combinations of zeolites and molecular sieves in the form of a layered succession prove to be advantageous. At least one layer each of a zeolite and a molecular sieve coal should be used. The layer with lower sorption capacity should be located in the vicinity of the openings in the breakthrough region of the filter cartridge, the layer with higher sorption capacity should be located in the region of the gas inlet of the filter cartridge.
  • the height of the filter insert exceeds its diameter at least four times.
  • the height of the breakthrough area the height of the filter insert by at least eight times.
  • the inner diameter of the container is about 1, 2 times the outer diameter of the filter cartridge.
  • the optimal residence time of the anesthetic gases is determined by the gas load and the flow-through length of the filter cartridge.
  • the speeds of the gases or vapors in the annular gap can be 0.2 to 0.3 m / s, the showering strengths during regeneration up to 0.4 m 3 / (m 2 h) without flooding within the filter cartridge.
  • the openings to be provided in the filter cartridge are only slightly smaller than those of the commercial formations of zeolite, which are cheap as a hollow cylinder with the main dimensions of 6/3 or 7/4 mm or as a solid cylinder 2 or 4 mm supplied. As a result of this size of the openings advantageous conditions for the flow through the fluid through the wall and the bottom portion of the filter insert are set. But it is also possible to use as filter cartridges commercially available sieves or knitted fabrics of sufficient stability.
  • a sorbent advantageously modified and / or dealuminated zeolites are used with a water absorption capacity below 2% by mass, the temperature is lowered to desorb the halogenated hydrocarbons.
  • the inventive method for recovering halogenated hydrocarbons using the filter cartridge described above is that the halogenated hydrocarbons are removed from associated gases and / or temporarily stored on adsorption using modified and / or dealuminated zeolites temporarily released and targeted again.
  • a vapor carrier Using a vapor carrier, the cooling of the vapors leads to the formation of a phase-related vorgetrennten mixture and that the specifically lighter water layer is mainly attributed to the evaporation process of the water, resulting harmful products remain in a water cycle, thereby periodically or deliberately discharged and the specific heavier layer of halogenated hydrocarbons is fed to repeated use.
  • Fig.l The filter cartridge for the recovery of inhalation anesthetics in the adsorption
  • Fig. 2 Vapor pressures for water I Anesthetic mixtures as a function of the temperature
  • Fig. 3 Sensor at the filter outlet for filling level monitoring
  • Tab.1 Properties of inhalation anesthetics in combination with water vapor.
  • the filter cartridge 1 essentially consists of a container 19 with the gas outlet 5, which is united via the closure 2 with the lid 4 and the container 19 with the gas inlet 3.
  • the container 19 has a filter cartridge 20, which by means of the sealing rings 6; 6 'and a screen plate 22 is connected to the lid 4.
  • the zeolite 8 is located in the filter insert 20 with the openings 7.
  • the filter insert 20 adapts with its bottom to the depressions 9 in the container 19.
  • the gas inlet 3 is optionally with a gas supply 10 and a steam supply 11, which simultaneously forms a return 12 and connected to a steam generator 13.
  • the lid 4 with the gas outlet 5 leads on the one hand to an exhaust air duct 14 and to a suction 15, on the other hand to a Abdampe Adjust 16 via a capacitor 17 to a liquid outlet 18th
  • the filter cartridge allows adsorption of the inhalation anesthetics on already desorbed sorbents by an exhalation of the gases optionally through this is passed through.
  • Tab.l enters a relative boiling point reduction of the anesthetic-water mixture within the limits of 4 to 11%.
  • the two components of the boiling mixture of inhalation anesthetics and water over the entire concentration range behave as if they were each alone: their partial pressure in the vapor phase corresponds to the saturation pressure at the mixture boiling temperature, and the operating pressure chosen here is the normal pressure of the saturation pressures of the two Components according to Figure 2 together.
  • the almost complete insolubility of liquid inhalation anesthetics and water has an advantageous effect in terms of lowering the boiling point.
  • the sensitive anesthetics are thermally protected. Their possible breakdown products pass through extraction into the water phase.
  • a filter cartridge is filled with a microporous adsorbent (activated carbon, hydrophobic zeolite) and used to capture volatile anesthetics from the expiratory air of anesthetized patients.
  • a sensor semiconductor sensor for the detection of CFCs
  • An electronic circuit controls depending on the sensor values differently colored LEDs (green, 2x yellow, red), so that an optical breakdown control is given. From the full and attributable filters, the anesthetics are recovered by desorption (Figure 3).
  • Example 4 Example 4:
  • a filter cartridge according to Example 1 with an empty mass of 0.77 kg was filled with about 0.6 kg of zeolite (Tricat).
  • Tricat zeolite
  • an increase in mass of 0.095 kg, ie 12% was observed.
  • the loaded zeolite was placed in the filter cartridge in a distillation bridge over the steam generator.
  • a descending intensive condenser was attached and the condensate cooled at -0.5 0 C in a template.
  • a temperature of 57 ° C. could be ascertained, which increased to 100 ° C. over a short period of about 20 minutes.
  • the filter cartridge 20 is filled with zeolites of different structure, such as Z-700, Z-700 fine and TZF, which have a sorption capacity of 0.21 - 0.26 kg / kg sorbent. At relatively small times (60-90 min) for the breakthrough of sevoflurane a sharp emerges Profile of breakthrough curves. The capacity of the filter 1 is utilized, but relativized due to the shorter usage times.
  • the filter cartridge 20 is a molecular sieve having a sorption capacity of 0.78 kg / kg sorbent. It turns at relatively longer times (about 270 min) for the use of the filter cartridge 1, a flat breakthrough curve. The filter is not fully utilized despite its higher capacity in its effectiveness.
  • the filter cartridge 20 is filled to three-quarters proportions with a hydrophobic Molekularsiebkohle and to a quarter with a zeolite.
  • the zeolite is located above the coal.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

La présente invention concerne une cartouche filtrante permettant de récupérer des hydrocarbures halogénés à bas point d'ébullition (HKW), en particulier pour des agents anesthésiques par inhalation utilisés en pratique médicale. L'objectif de cette invention est de mettre au point une cartouche filtrante qui permet à la fois un épuisement efficace par adsorption et également une régénération utile par désorption au moyen de vapeur d'eau à l'extérieur d'un appareil d'anesthésie, sans endommagement des zéolithes hydrophobes et des charbons actifs, en particulier des charbons de tamis moléculaire, ni des sorbates tels que le desflurane, l'isoflurane et le sévoflurane. A cette fin, la cartouche filtrante (1) comprenant l'entrée de gaz (3) est constituée d'un récipient (19) qui présente un élément filtrant (20), qui est relié à la sortie de gaz (5) par l'intermédiaire de la fermeture (2) avec le couvercle (4) et qui est joint au couvercle (4) au moyen des bagues d'étanchéité (6, 6') et de la plaque perforée (22). Le zéolithe (8) se trouve dans l'élément filtrant (20) présentant les ouvertures (7) et l'élément filtrant (20) s'adapte avec sa partie de fond de façon flexible aux creux (9) dans le récipient (19).
EP07726408A 2006-02-17 2007-02-16 Cartouche filtrante permettant de récupérer des hydrocarbures halogénés Ceased EP1988983A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07726408A EP1988983A1 (fr) 2006-02-17 2007-02-16 Cartouche filtrante permettant de récupérer des hydrocarbures halogénés

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102006008320A DE102006008320B4 (de) 2006-02-17 2006-02-17 Filterpatrone zur Rückgewinnung niedrigsiedender halogenierter Kohlenwasserstoffe
DE102006027127A DE102006027127A1 (de) 2006-06-02 2006-06-02 Verfahren und Vorrichtung zur Rückgewinnung von halogenierten Kohlenwasserstoffen und Ethern
EP06117003 2006-07-11
DE102006053216.3A DE102006053216B4 (de) 2006-02-17 2006-11-11 Filterpatrone zur Rückgewinnung niedrigsiedender halogenierter Kohlenwasserstoffe
EP07726408A EP1988983A1 (fr) 2006-02-17 2007-02-16 Cartouche filtrante permettant de récupérer des hydrocarbures halogénés
PCT/EP2007/051520 WO2007093640A1 (fr) 2006-02-17 2007-02-16 Cartouche filtrante permettant de récupérer des hydrocarbures halogénés

Publications (1)

Publication Number Publication Date
EP1988983A1 true EP1988983A1 (fr) 2008-11-12

Family

ID=37946507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07726408A Ceased EP1988983A1 (fr) 2006-02-17 2007-02-16 Cartouche filtrante permettant de récupérer des hydrocarbures halogénés

Country Status (4)

Country Link
US (1) US8038772B2 (fr)
EP (1) EP1988983A1 (fr)
DE (1) DE102006053216B4 (fr)
WO (1) WO2007093640A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010056245A1 (fr) * 2008-11-13 2010-05-20 Donaldson Company, Inc. Systèmes et procédés de gestion de cycles de fractionnateur
WO2012064245A1 (fr) * 2010-11-11 2012-05-18 Nordic Gas Cleaning Ab Appareil et procédé de traitement d'un gaz anesthésique résiduel par adsorption/désorption
WO2014094139A1 (fr) 2012-12-22 2014-06-26 Dmf Medical Incorporated Circuit anesthésique ayant une membrane à fibres creuses
KR20150131279A (ko) * 2013-03-15 2015-11-24 쓰리엠 이노베이티브 프로퍼티즈 캄파니 층상 필터 카트리지용 사용 수명 종료 표시 시스템
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US20090101010A1 (en) 2009-04-23
US8038772B2 (en) 2011-10-18
WO2007093640A1 (fr) 2007-08-23
DE102006053216B4 (de) 2015-11-26

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