EP0383153A1 - Dispositif de réduction de la pression interne dûe au dégagement d'hydrogène pour containers de déchets radio-actifs - Google Patents

Dispositif de réduction de la pression interne dûe au dégagement d'hydrogène pour containers de déchets radio-actifs Download PDF

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Publication number
EP0383153A1
EP0383153A1 EP90102291A EP90102291A EP0383153A1 EP 0383153 A1 EP0383153 A1 EP 0383153A1 EP 90102291 A EP90102291 A EP 90102291A EP 90102291 A EP90102291 A EP 90102291A EP 0383153 A1 EP0383153 A1 EP 0383153A1
Authority
EP
European Patent Office
Prior art keywords
hydrogen
container
catalyst
containers
outside
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90102291A
Other languages
German (de)
English (en)
Other versions
EP0383153B1 (fr
Inventor
Rainer Dr. Köster
Manfred Dr. Kelm
Wolfram Pfeifer
Wilhelm Hempelmann
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.)
Forschungszentrum Karlsruhe GmbH
Original Assignee
Kernforschungszentrum Karlsruhe GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kernforschungszentrum Karlsruhe GmbH filed Critical Kernforschungszentrum Karlsruhe GmbH
Publication of EP0383153A1 publication Critical patent/EP0383153A1/fr
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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/06—Details of, or accessories to, the containers
    • G21F5/12—Closures for containers; Sealing arrangements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers

Definitions

  • the present invention relates to a device on containers with radioactive waste for reducing the internal pressure due to hydrogen generated in the waste and for reducing the release of hydrogen from the container.
  • the formation of gases - in particular hydrogen - is in principle possible on the one hand due to the reactions of metallic components with water, and also through the formation of radiolysis gases from cement / bitumen matrix materials.
  • the first formation mechanism is particularly important for high-pressure compacted mixed waste. For intermediate and final storage, the formation / release rates per container and time are limited in order to be able to declare a container as suitable for final storage.
  • Drying the contents of the container e.g. Vacuum drying would be very expensive for high throughputs due to the long drying times of several days, since very expensive systems would need capacity.
  • Boundary condition for this task is to change the state of the conditioning and container technology as little as possible, i.e. to make the greatest possible use of the technical conditions of final storage.
  • the present invention proposes on a device of the type described in the introduction that a catalyst for the oxidation of hydrogen with oxygen from the air to water at storage temperature at a predetermined throughput rate from the interior of the container into a passage opening in the wall of the container or its cover is introduced outside.
  • a catalyst for the oxidation of hydrogen with oxygen from the air to water at storage temperature at a predetermined throughput rate from the interior of the container into a passage opening in the wall of the container or its cover is introduced outside.
  • the device consists essentially of a cup-shaped pot or container 1, which is inserted into an opening 2 of the container wall, the lid 3 of a repository barrel for radioactive waste.
  • a threaded ring 4 is expediently welded to the opening 2, into which the pot 1 is screwed from the outside by means of its external thread 5.
  • the surface between the pot 1 and the lid 3 is sealed by the intermediate seal 6.
  • the interior of the pot 1, in which the catalyst or a catalyst pack 7 is inserted, has a connection opening 8 to the barrel interior 9, in which a gas-permeable sintered metal candle 10 is inserted.
  • the catalyst 7 is covered by a wire mesh, a water vapor-permeable plate 11 or a sintered metal cover.
  • This construction now allows gases to escape from the container or from the waste container shown.
  • the hydrogen formed in the container is now passed through the opening 8 and the sintered metal candle 10 over the catalyst 7, on which the hydrogen is oxidized to water with the oxygen of the outside air at ambient temperature.
  • Systems such as precious metals on inert supports, e.g. Palladium on alumina use.
  • a palladium catalyst with 0.5 percent by weight palladium on an Al2O3 support matrix (catalyst E 221 P / D-0.5% PD) has proven to be suitable.
  • the oxidation product of the hydrogen i.e. water
  • the catalyst in conjunction with the oxygen present in the air in any case avoids the addition of expensive oxidizing agents which, moreover, can easily be consumed by reaction with other components and would therefore no longer be available for H2 oxidation.
  • the new device can be easily integrated into existing or existing container and barrel systems, which is particularly favored by its compact design.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Catalysts (AREA)
  • Processing Of Solid Wastes (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
EP90102291A 1989-02-11 1990-02-06 Dispositif de réduction de la pression interne dûe au dégagement d'hydrogène pour containers de déchets radio-actifs Expired - Lifetime EP0383153B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3904149A DE3904149C2 (de) 1989-02-11 1989-02-11 Vorrichtung an Behältern mit radioaktiven Abfällen zur Verringerung des Innendrucks durch Wasserstoffbildung
DE3904149 1989-02-11

Publications (2)

Publication Number Publication Date
EP0383153A1 true EP0383153A1 (fr) 1990-08-22
EP0383153B1 EP0383153B1 (fr) 1994-02-23

Family

ID=6373903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102291A Expired - Lifetime EP0383153B1 (fr) 1989-02-11 1990-02-06 Dispositif de réduction de la pression interne dûe au dégagement d'hydrogène pour containers de déchets radio-actifs

Country Status (4)

Country Link
EP (1) EP0383153B1 (fr)
JP (1) JP2930644B2 (fr)
KR (1) KR930001952B1 (fr)
DE (1) DE3904149C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0660335A1 (fr) * 1993-12-20 1995-06-28 Forschungszentrum Jülich Gmbh Dispositif de prévention des surpressions dans des conteneurs de stockage renfermant un produit dégageant de l'hydrogène
FR2874120A1 (fr) * 2004-08-09 2006-02-10 Cogema Logistics Sa Procede et dispositif d'elimination des gaz inflammables dans une enceinte fermee et enceinte equipee d'un tel dispositif
WO2012107576A1 (fr) 2011-02-11 2012-08-16 Tn International Dispositif de piegeage de gaz inflammables produits par radiolyse ou thermolyse dans une enceinte de confinement

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8901738D0 (en) * 1989-01-26 1989-03-15 Atomic Energy Authority Uk Recombination catalyst
DE19531498C2 (de) * 1995-08-26 2001-06-13 Nuklear Service Gmbh Gns Metallfaß, insbesondere Stahlfaß, für radioaktive Abfallstoffe mit Einrichtungen zur Druckentlastung
DE19733283C2 (de) * 1997-08-01 1999-08-05 Gnb Gmbh Abschirmbehälter für den Transport und/oder die Lagerung abgebrannter Brennelemente
JP4615749B2 (ja) * 2001-03-22 2011-01-19 日揮株式会社 放射性廃棄物処理方法及びその装置
FR2925752B1 (fr) * 2007-12-21 2012-03-09 Tn Int Dispositif de transport et/ou de stockage de matieres radioactives concu pour permettre la liberation controlee d'oxygene dans une enceinte fermee
JP6242263B2 (ja) * 2014-03-27 2017-12-06 日立Ｇｅニュークリア・エナジー株式会社 放射性物質の保管容器
JP6746922B2 (ja) * 2016-01-20 2020-08-26 株式会社Ihi 放射性廃棄物の貯蔵方法及び装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD34878A (fr) *
US2847284A (en) * 1955-03-10 1958-08-12 Harold M Busey Apparatus for catalytically combining gases
GB1136194A (en) * 1966-04-06 1968-12-11 Squibb & Sons Inc Radioactive package and container therefor
DE2116330A1 (de) * 1970-03-25 1971-10-14 North American Rockwell Corp , El Segundo Calif (V St A) Verfahren und Einrichtung zum Vereinigen von Wasserstoff und Sauer stoff
DE2922717A1 (de) * 1979-06-05 1980-12-11 Babcock Brown Boveri Reaktor Verfahren und einrichtung zur rekombination von wasserstoff, der im sicherheitsbehaelter einer kernreaktoranlage eingeschlossen ist
DE3227512A1 (de) * 1982-07-23 1984-01-26 GNS Gesellschaft für Nuklear-Service mbH, 4300 Essen Verlorener abschirmbehaelter fuer radioaktive abfaelle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62265600A (ja) * 1986-05-12 1987-11-18 秩父セメント株式会社 貯蔵・輸送・処分容器の圧力調整装置
DE3730743A1 (de) * 1987-09-12 1989-03-30 Nuklear Service Gmbh Gns Verfahren zur reduzierung des innendruckaufbaus in einem lagerbehaelter fuer radioaktive abfallstoffe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD34878A (fr) *
US2847284A (en) * 1955-03-10 1958-08-12 Harold M Busey Apparatus for catalytically combining gases
GB1136194A (en) * 1966-04-06 1968-12-11 Squibb & Sons Inc Radioactive package and container therefor
DE2116330A1 (de) * 1970-03-25 1971-10-14 North American Rockwell Corp , El Segundo Calif (V St A) Verfahren und Einrichtung zum Vereinigen von Wasserstoff und Sauer stoff
DE2922717A1 (de) * 1979-06-05 1980-12-11 Babcock Brown Boveri Reaktor Verfahren und einrichtung zur rekombination von wasserstoff, der im sicherheitsbehaelter einer kernreaktoranlage eingeschlossen ist
DE3227512A1 (de) * 1982-07-23 1984-01-26 GNS Gesellschaft für Nuklear-Service mbH, 4300 Essen Verlorener abschirmbehaelter fuer radioaktive abfaelle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0660335A1 (fr) * 1993-12-20 1995-06-28 Forschungszentrum Jülich Gmbh Dispositif de prévention des surpressions dans des conteneurs de stockage renfermant un produit dégageant de l'hydrogène
FR2874120A1 (fr) * 2004-08-09 2006-02-10 Cogema Logistics Sa Procede et dispositif d'elimination des gaz inflammables dans une enceinte fermee et enceinte equipee d'un tel dispositif
WO2006021727A1 (fr) * 2004-08-09 2006-03-02 Tn International Procede et dispositif d'elimination des gaz inflammables dans une enceinte fermee et enceinte equipee d'un tel dispositif
US7655201B2 (en) 2004-08-09 2010-02-02 Tn International Method and device for removing inflammable gases in a closed chamber and chamber equipped with such a device
US8029738B2 (en) * 2004-08-09 2011-10-04 Tn International Method and device for removing inflammable gases in a closed chamber and chamber equipped with such a device
WO2012107576A1 (fr) 2011-02-11 2012-08-16 Tn International Dispositif de piegeage de gaz inflammables produits par radiolyse ou thermolyse dans une enceinte de confinement
FR2971614A1 (fr) * 2011-02-11 2012-08-17 Tn Int Dispositif de piegeage de gaz inflammables produits par radiolyse ou thermolyse dans une enceinte de confinement
US8956443B2 (en) 2011-02-11 2015-02-17 TN Intellectual Device for trapping flammable gases produced by radiolysis or thermolysis in a containment

Also Published As

Publication number Publication date
DE3904149C2 (de) 1994-01-20
KR930001952B1 (ko) 1993-03-20
JP2930644B2 (ja) 1999-08-03
KR900013526A (ko) 1990-09-06
JPH03200000A (ja) 1991-08-30
EP0383153B1 (fr) 1994-02-23
DE3904149A1 (de) 1990-08-23

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