EP2232503A1 - Dispositif de transport et/ou de stockage de matieres radioactives conçu pour permettre la liberation commandee d'oxygene dans une enceinte fermee - Google Patents
Dispositif de transport et/ou de stockage de matieres radioactives conçu pour permettre la liberation commandee d'oxygene dans une enceinte fermeeInfo
- Publication number
- EP2232503A1 EP2232503A1 EP08868359A EP08868359A EP2232503A1 EP 2232503 A1 EP2232503 A1 EP 2232503A1 EP 08868359 A EP08868359 A EP 08868359A EP 08868359 A EP08868359 A EP 08868359A EP 2232503 A1 EP2232503 A1 EP 2232503A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxygen
- release
- oxygen content
- closed
- content
- 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
Links
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
- G21F5/06—Details of, or accessories to, the containers
Definitions
- the present invention relates generally to the field of securing a closed enclosure defined in a device for transporting and / or storing radioactive materials.
- the radiation emitted by the radioactive materials causes, by radiolysis, a transformation of a part of this water into different gases, including hydrogen and oxygen.
- the containment enclosures may be equipped with a catalyst for the recombination of oxygen and hydrogen in water (or catalytic hydrogen recombinant), in contact with which hydrogen combines with the oxygen present. inside the enclosure closed to form water according to the catalytic oxidation mechanism of hydrogen.
- one solution is to initially introduce, within the closed enclosure, means for releasing oxygen, constituted for example by a solid source of gaseous oxygen, as is apparent in FIG. FR-A-2,874,120.
- This solid source takes the form of a peroxide which, in contact with the water created in the closed chamber, releases gaseous oxygen.
- oxygen is regularly generated within the chamber, but in uncontrollable quantities, which can lead to oxygen deficiency and therefore to an excess of non-recombined hydrogen, with the risks presented above. .
- EP-A-0 383 153 describing a device for reducing the internal pressure in a radioactive waste storage device.
- This device comprises a chamber placed in a lateral body opening or the lid of the waste storage device nuclear.
- the interior of this chamber receives a catalyst and has an opening in communication with the internal storage space of the storage device, opening in which is placed a candle made of sintered metal.
- the catalyst is separated from the outside by a wire cloth, a water vapor permeable plate or a sintered metal lid.
- the hydrogen that has formed in the storage device passes through the sintered metal candle, then arrives on the catalyst where the hydrogen is oxidized into water by the oxygen of the air.
- the catalyst used comprises a precious metal, for example palladium on an inert support, for example alumina.
- the internal storage space can not be considered as constituting a closed enclosure of a device for transporting and / or storing radioactive materials, since this space can not be closed, sealed and perfectly sealed, because of the need to make it communicate with the ambient air, constituting the external source of oxygen.
- the object of the invention is therefore to remedy at least partially the disadvantages mentioned above, relating to the embodiments of the prior art.
- the invention firstly relates to a device for transporting and / or storing radioactive materials, comprising a closed enclosure and a system for securing said closed enclosure, said system comprising catalytic means for recombining hydrogen and oxygen in water, placed in said closed enclosure.
- the system for securing said closed enclosure further comprises a device for controlled release of oxygen in said closed enclosure.
- the controlled release of oxygen into the chamber can be automated, or not. In the latter case, it may in particular be means allowing an operator to trigger and / or stop itself the supply of oxygen into the chamber, from outside the latter.
- the triggering of the oxygen release manual or automatic, is preferably performed following the detection of a low oxygen content, it is possible that this triggering is performed differently, for example at several times predetermined, namely at predetermined time intervals, preferably regular.
- the invention operates with any type of oxygen release means, allowing a controlled release thereof, these means being placed in or out of the closed chamber.
- oxygen release means can for example be solid, liquid or gaseous oxygen sources, which, when they are intended to be arranged within the closed chamber, are preferably introduced into it before the closure of the transport and / or storage device, for then stay there permanently.
- the device for the controlled release of oxygen is an integral part of the system for securing the closed enclosure of the device for transporting and / or storing radioactive materials.
- This system may nevertheless include other active means, without departing from the scope of the invention.
- the active means may not only comprise a catalyst for recombining oxygen and hydrogen in water, but also a desiccant, for limiting the presence of water inside the enclosure. Indeed, this presence causes significant risks of corrosion, so that it may then be necessary to achieve a cleansing thereof, namely a removal of water with the aid of the desiccant supra.
- the recombination catalyst is chosen in particular from platinum or palladium-coated catalysts, and may take the form of palladium deposited on alumina, enabling both catalysis and drying to be carried out together. required.
- said device for the controlled release of oxygen comprises:
- controllable oxygen release means designed to release oxygen within said closed chamber
- control of the oxygen release can advantageously result from monitoring information on the oxygen content in the closed chamber, and this that the release of oxygen is done manually or automated.
- the information on the oxygen content may relate to the oxygen content itself, or alternatively the content of another gas present in the chamber, correlated to the oxygen content. .
- said means for informing about the oxygen content are connected to the control means so as to provide a value of the oxygen content within said closed chamber, said control means being designed to order the means of release, an oxygen release, preferably in a predetermined amount, when said value falls below a predetermined threshold of oxygen content.
- control means therefore automatically order the release of oxygen when the content thereof falls below the predetermined threshold, for example set between 2 and 10% of the volume of the closed chamber and even more preferably between 3 and 6% of this volume.
- the predetermined threshold for example set between 2 and 10% of the volume of the closed chamber and even more preferably between 3 and 6% of this volume.
- a determined quantity of oxygen is introduced into the chamber, this determined quantity being fixed, for example, so that, following its release into said closed chamber , the oxygen content is raised to a value between 5 and 60%, and even more preferably between 20 and 30%.
- said means for informing about the oxygen content are detection means for detecting the oxygen content in said closed enclosure, preferably of the oxygen sensor type.
- the means for informing about the oxygen content are not designed to directly detect the oxygen content, this being in fact obtained indirectly from one or more other values which are correlated to it, such as a value of the content of another gas present in the chamber.
- these gases whose content can be directly detected using appropriate means to provide information on the oxygen content, there are in particular hydrogen and carbon monoxide, or even hydrocarbons, I2, CI2 or CO2 .
- Estimates and / or calculations known to those skilled in the art then make it possible, from one or more of these values of detected contents, to provide information on the oxygen content within said closed enclosure, to then compare it with the predetermined threshold of oxygen content.
- these preferably comprise one or more oxygen content sensors disposed within said enclosure closed.
- the solution is effective to deduce the average oxygen content in the enclosure, when poor homogeneity remains within it.
- said oxygen controlled release device is designed to permit multiple time-spaced oxygen releases, with each oxygen release being ordered by said control means when said value falls below said predetermined threshold of oxygen content.
- the advantage of this type of configuration lies in the fact that it can successively fill the closed chamber with oxygen several times, thus being able to permanently ensure the catalytic recombination of the hydrogen created in the enclosure, without generating an overpressure. of oxygen in the latter.
- this principle can indifferently be realized with a single source of oxygen which can be activated several times successively, for example by opening / closing, or with a plurality of oxygen sources, for example each dedicated to a specific source of oxygen. given release. Other cases are nevertheless possible, such as activating several sources during the same release of oxygen.
- said control means are preferably designed so as to impose a minimum time interval between two directly consecutive oxygen releases. This makes it possible to avoid causing one or more unwanted oxygen releases, just after a given release. This risk actually exists in the event that the ordered quantity of oxygen is released slowly, and that the oxygen content sensor continues to provide a value below the threshold, in the moments following this release. Another cause may lie in the slow homogenization of the oxygen content in the closed chamber, following an oxygen release.
- said control means could comprise an activated timer after each release of oxygen, preferably automatically.
- the timer can apply a delay of several hours, for example 24 hours.
- said means for informing about the oxygen content are connected to the control means so as to provide a value of the hydrogen content within said closed chamber, said control means being arranged to direct the release means to release oxygen, preferably in a predetermined amount, when said value exceeds a predetermined hydrogen content cap.
- the control means therefore automatically order the release of oxygen when the hydrogen content exceeds the predetermined ceiling.
- the oxygen release ordered it could be maintained as the value of the hydrogen content provided by the detection means remains above the above ceiling. In such a case, the release of oxygen is then stopped as soon as the ceiling is reached, then a new release of oxygen is ordered only when the detected value goes back above the predetermined ceiling.
- a determined quantity of oxygen is introduced into the chamber, this determined quantity being fixed, for example, so that, following its release into said closed enclosure , the hydrogen content is reduced to a determined value below the ceiling.
- said means for informing about the oxygen content are detection means for detecting the hydrogen content in said closed chamber, preferably of the hydrogen content sensor type.
- the means making it possible to provide information on the hydrogen content are not designed to directly detect the hydrogen content, this being in fact obtained indirectly from one or more other values that are correlated to it, such as a value of the content of another gas present in the enclosure. Estimates and / or calculations known to those skilled in the art then make it possible, from one or more of these values of detected contents, to provide information on the hydrogen content within said closed chamber, and then to compare it with the predetermined ceiling of hydrogen content.
- detection means for detecting the hydrogen content within said closed enclosure preferably comprise one or more hydrogen content sensors disposed within said enclosure closed.
- the means making it possible to provide information on the oxygen content can actually provide a value of the hydrogen content as just described, but alternatively provide a value of the content of one or more of the gases. contained in the chamber, among hydrogen and carbon monoxide, or even hydrocarbons, I2, CI2 or CO2.
- said control means are arranged outside said closed enclosure, and electrically powered by a power supply also arranged outside said closed enclosure, even if these elements could be placed in the enclosure, without departing from the scope of the invention .
- said oxygen release means comprise at least one solid source of gaseous oxygen placed within said closed chamber, each solid source comprising an oxidizing compound capable of releasing oxygen gas by thermal decomposition.
- the oxidizing compound is preferably chlorate or sodium perchlorate
- each solid source preferably comprises a system for electrically triggering the thermal decomposition of the oxidizing compound, said triggering system being electrically connected to said control means capable of activating it.
- the device allowing the controlled release of oxygen comprises: controllable oxygen release means designed to release oxygen within said closed chamber; and
- said oxygen release means designed to order the release means, possibly under condition, several successive releases of oxygen, respectively at a plurality of predetermined times.
- control means of said oxygen releasing means is adapted to direct the releasing means, unconditionally, to release oxygen at each of said plurality of predetermined times.
- said device allowing the controlled release of oxygen furthermore comprises means making it possible to provide information on the oxygen content within said closed enclosure, and that said means making it possible to provide information on the content.
- oxygen are connected to the control means so as to provide a value of the oxygen content within said closed chamber, said control means being adapted to order at each of said plurality of predetermined times, the release means, an oxygen release, provided that said supplied value is less than a predetermined value of oxygen content.
- said means for informing about the oxygen content are detection means for detecting the oxygen content within said closed chamber.
- detection means for detecting the oxygen content are here also applicable.
- other components of the oxygen controlled release device, described above in connection with the previous mode are also applicable to this preferred embodiment.
- each ordered oxygen release results in a release of oxygen in a predetermined amount.
- the invention furthermore relates to a method of securing a device for transporting and / or storing radioactive materials, comprising a closed enclosure as well as a system for securing said closed enclosure, said system comprising catalytic recombination means hydrogen and oxygen in water, placed in said closed enclosure.
- a controlled release of oxygen is achieved in said closed chamber, preferably automated.
- FIG. 1 shows a schematic longitudinal sectional view of a device for transporting and / or storage of radioactive material, according to a preferred embodiment of the present invention
- FIG. 2 represents a view of the oxygen release means equipping the transport and / or storage device shown in FIG. 1;
- FIG. 3 represents a diagram illustrating the operation of the oxygen controlled release device, comprising the oxygen release means shown in FIG. 2;
- FIG. 4 shows a view similar to that of FIG. 1, with the oxygen controlled release device in the form of another preferred embodiment; and Fig. 5 is a diagram illustrating the operation of the oxygen controlled release device shown in Fig. 4.
- the device 1 generally comprises a lateral body 2, a bottom 4 possibly made in one piece with the body 2, and a cover 6 fixedly attached thereto. These elements jointly form a closed enclosure 8, in which are housed the radioactive material 10, such as waste cases.
- the device 1 comprises a system for securing the closed enclosure 8, this system firstly comprising active means, among which several catalysts 12 for the recombination of oxygen and hydrogen in water, as well as a desiccating agent.
- the catalysts 12 are preferably distributed in the chamber 8, in particular to avoid local concentrations of hydrogen.
- the system for securing the closed enclosure comprises a device 16 for the controlled release of oxygen in the chamber 8, the purpose of which is to ensure the catalytic recombination of hydrogen during the entire transport period and / or storage of radioactive material. Consequently, the controlled release of oxygen allowed by the device 16 makes it possible, in particular, to cope with cases in which all of the oxygen initially present in the chamber has been consumed.
- the device 16 firstly comprises detection means 20 for detecting the oxygen content in the chamber, these means preferably taking the form of one or more oxygen sensors 20 arranged in the chamber 8 these sensors can take any form known to those skilled in the art.
- controllable oxygen release means 22 provided to release oxygen within the enclosure 8.
- these means 22 housed in the enclosure comprise a plurality of solid sources 24 of gaseous oxygen, each solid source 24 comprising an oxidizing compound of the chlorate or sodium perchlorate type, capable of releasing gaseous oxygen by thermal decomposition.
- control means 26 of the sources 24 comprise control means 26 of the sources 24.
- These control means preferably in the form of an electronic control unit, comprise firstly means 28 for acquiring a value of oxygen content continuously supplied by the sensor 20 to which these means 28 are connected. They also make it possible to compare this value with a predetermined threshold of oxygen content in the enclosure, fixed for example between 3 and 6%, and preferably around 5%.
- control means also have means 30 for ordering a release of oxygen contained in the sources 24.
- the means 30 are therefore capable of generating a signal, for example an electric current, leading to the thermal decomposition of one of the solid sources 24, this signal passing through a sequencer 32 connected to the sources 24 and for conveying this signal from one of these sources not yet consumed.
- the device 16 is designed to allow several time-spaced releases of oxygen, each oxygen release being preferably effected by activating only one of the sources 24.
- the control means 26 comprise a timer 34 imposing a minimum time interval between two directly consecutive oxygen releases, therefore between the actuation of two sources 24, this interval being for example set at about 24 hours.
- control means 26 are preferably located outside the enclosure 8, as its power supply 36, which may optionally be integrated.
- the electrical connections 35 between the sequencer 32 and the solid sources 24 pass through the lateral body 2 in a sealed manner, such a connection being also provided between the sensor 20 and the means 28 of FIG. acquisition and comparison of the value of the oxygen content.
- each solid source 24 comprises an oxidizing compound 40 capable of releasing oxygen gas by thermal decomposition.
- this oxidizing compound consists of a block of chlorate or sodium perchlorate.
- each solid source may consist of an oxygen cartridge / candle having an electrical triggering system for thermal decomposition, this system may for example take the form of an ignition pad 42.
- the ignition pad 42 receiving the electrical signal from the means 30 and the sequencer 32, via the electrical connection 35 of the wired type connected to this chip, causes a combustion of an electric relay 44 of the candle, which maintains the thermal decomposition of the chlorate block or sodium perchlorate 40, until it is fully consumed.
- the release of gaseous oxygen which results from this decomposition passes through a filter 46 of the candle, the purpose of which is to trap the harmful species resulting from this decomposition, such as soot, etc.
- the mass of the chlorate or sodium perchlorate block 40 makes it possible to accurately determine the quantity of oxygen gas that is released during its thermal decomposition.
- this quantity of oxygen being preferably fixed so that following its release into said closed chamber, the oxygen content is raised to a value between 20 and 30%, and preferably of the order of 25%.
- the sensor 20 delivers a regular and continuous oxygen content value to the means 28 which compare it to the predetermined threshold. As long as the value is above the threshold, no action is taken. In contrast, if the value falls below the threshold, implying that the remaining amount of oxygen is insufficient to ensure a satisfactory catalytic recombination of the hydrogen in the chamber, an oxygen release order is automatically delivered by the means 30. Through the sequencer 32, this order in the form of an electrical signal is switched to the one of the solid sources 24 which has not yet been consumed, and activates the ignition patch 42 of this same source. Then, oxygen gas is released from this source as discussed above, in an amount which is known, and which can reach several liters. The release can take several minutes or more.
- the oxygen release order is immediately followed by a delay applied by the timer 34, which prohibits the issuance of a new oxygen release command until an interval given time has elapsed, such as 24 hours. Therefore, during this time interval, even if the value of the oxygen content detected by the sensor 20 is below the threshold, no new source triggering order 24 can be issued.
- FIG. 4 there is shown a device 1 for the transport and / or storage of radioactive material, according to another preferred embodiment of the present invention.
- the control means 26 of the device 16 differ from those just presented.
- the elements bearing the same reference numerals correspond to identical or similar elements.
- the control means 26 of the sources 24 are always in the form of an electronic control unit.
- timer 50 or the like, in which a plurality of predetermined instants T1, T2, .., Tn are programmed, these times being spaced from one another by predetermined, preferably regular, time intervals.
- the time interval used is set at several tens of days.
- the control means 26 also comprise the means 28 for acquiring an oxygen content value supplied by the sensor 20 to which these means 28 are connected. They also make it possible to compare this value supplied with a predetermined value of oxygen content in the chamber, fixed for example between 30 and 70%, and preferably around 60%.
- control means 26 also have means 30 for ordering an oxygen release contained in the sources 24, as well as the sequencer 32 connected to the sources 24 and making it possible to route the signal from one of these sources not yet consumed.
- the device 16 is designed to allow several time-spaced releases of oxygen, each oxygen release being preferably effected by activating only one of the sources 24.
- the timer 50 detects the predetermined times Tl, T2, .., Tn at which an oxygen release could be ordered.
- the condition of limited oxygen content is verified by the means 28.
- the sensor 20 delivers an oxygen content value to the means 28, which compare it to the predetermined value.
- the value supplied is greater than the predetermined value, reflecting a very low unusual consumption of oxygen since the previous release, no action is taken, and no release of oxygen can take place before the next predetermined instant. This case reveals abnormal conditions, an alarm can be triggered when it occurs.
- an oxygen release command is automatically delivered by the means 30.
- this order in the form of an electrical signal is switched to one of the solid sources 24 that has not been consumed, and activates the ignition pad 42 of the same source. Then, oxygen gas is released from this source as discussed above, in an amount which is known, and which can reach several liters. The release can take several minutes or more. Due to the verification of the oxygen limited condition just prior to the release order, there is certainty that the new oxygen content, after the release of a certain amount of oxygen, does not reach a ceiling. criticism synonymous with overoxygenation.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Packages (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0760231A FR2925752B1 (fr) | 2007-12-21 | 2007-12-21 | Dispositif de transport et/ou de stockage de matieres radioactives concu pour permettre la liberation controlee d'oxygene dans une enceinte fermee |
PCT/EP2008/068002 WO2009083491A1 (fr) | 2007-12-21 | 2008-12-19 | Dispositif de transport et/ou de stockage de matieres radioactives conçu pour permettre la liberation commandee d'oxygene dans une enceinte fermee |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2232503A1 true EP2232503A1 (fr) | 2010-09-29 |
EP2232503B1 EP2232503B1 (fr) | 2011-08-24 |
Family
ID=39672710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08868359A Not-in-force EP2232503B1 (fr) | 2007-12-21 | 2008-12-19 | Dispositif de transport et/ou de stockage de matieres radioactives conçu pour permettre la liberation commandee d'oxygene dans une enceinte fermee |
Country Status (7)
Country | Link |
---|---|
US (1) | US8263003B2 (fr) |
EP (1) | EP2232503B1 (fr) |
JP (1) | JP2011506990A (fr) |
AT (1) | ATE521973T1 (fr) |
ES (1) | ES2370572T3 (fr) |
FR (1) | FR2925752B1 (fr) |
WO (1) | WO2009083491A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2944378B1 (fr) * | 2009-04-14 | 2011-06-10 | Tn Int | Dispositif de conditionnement pour le stockage et/ou entreposage d'un milieu liquide radioactif |
US8105563B2 (en) * | 2009-12-28 | 2012-01-31 | Ge-Hitachi Nuclear Energy Americas Llc | Methods of controlling hydrogen concentrations in an offgas system of a nuclear reactor by passive air injection |
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 |
US9437331B2 (en) * | 2014-02-18 | 2016-09-06 | Savannah River Nuclear Solutions, Llc | Inherently safe passive gas monitoring system |
JP6338956B2 (ja) * | 2014-07-22 | 2018-06-06 | 株式会社東芝 | 押出成形装置 |
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 |
JP7221716B2 (ja) * | 2019-02-07 | 2023-02-14 | 三菱重工業株式会社 | 放射性廃棄物の収納装置および監視装置並びに放射性廃棄物の管理方法 |
EP3842381A1 (fr) * | 2019-12-23 | 2021-06-30 | Sensirion AG | Dispositif de contenir d'un gaz cible |
RU2738027C1 (ru) * | 2020-07-02 | 2020-12-07 | Общество с Ограниченной Ответственностью "Инженерное Бюро Воронежского Акционерного Самолетостроительного Общества" | Способ контроля вертикальности штабеля контейнеров с радиоактивными отходами |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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US4209491A (en) * | 1977-12-21 | 1980-06-24 | Midori Anzen Company, Ltd. | Control and monitoring system for oxygen generating device |
DE2922717C2 (de) * | 1979-06-05 | 1983-01-27 | Brown Boveri Reaktor GmbH, 6800 Mannheim | Verfahren und Einrichtung zur katalytischen Rekombination von Wasserstoff, der im Sicherheitsbehälter einer Kernreaktoranlage eingeschlossen ist |
JPS59116581A (ja) * | 1982-12-24 | 1984-07-05 | 株式会社日立製作所 | 原子炉格納容器又は圧力容器内の水素を除去する装置 |
DE3730743A1 (de) * | 1987-09-12 | 1989-03-30 | Nuklear Service Gmbh Gns | Verfahren zur reduzierung des innendruckaufbaus in einem lagerbehaelter fuer radioaktive abfallstoffe |
DE3904149C2 (de) * | 1989-02-11 | 1994-01-20 | Kernforschungsz Karlsruhe | Vorrichtung an Behältern mit radioaktiven Abfällen zur Verringerung des Innendrucks durch Wasserstoffbildung |
DE4343500A1 (de) * | 1993-12-20 | 1995-06-22 | Forschungszentrum Juelich Gmbh | Vorrichtung zur Vermeidung von Überdrücken in Lagerbehältern mit Wasserstoff entwickelndem Inhalt |
JPH09292491A (ja) * | 1996-04-26 | 1997-11-11 | Hitachi Ltd | 可燃性ガス濃度低減装置及びその制御方法 |
JP2000098075A (ja) * | 1998-07-23 | 2000-04-07 | Toshiba Corp | 可燃性ガス除去装置 |
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 |
ATE391548T1 (de) * | 2002-02-04 | 2008-04-15 | Areva Np Gmbh | Verfahren zur katalytischen oxidation eines gases sowie rekombinationseinrichtung zur durchführung des verfahrens und system mit derartigen rekombinationseinrichtung |
FR2874120B1 (fr) * | 2004-08-09 | 2006-11-24 | Cogema Logistics Sa | Procede et dispositif d'elimination des gaz inflammables dans une enceinte fermee et enceinte equipee d'un tel dispositif |
DE102008013213B3 (de) * | 2008-03-07 | 2010-02-18 | Areva Np Gmbh | Verfahren zur katalytischen Rekombination von in einem Gasstrom mitgeführtem Wasserstoff mit Sauerstoff sowie Rekombinationssystem zur Durchführung des Verfahrens |
-
2007
- 2007-12-21 FR FR0760231A patent/FR2925752B1/fr not_active Expired - Fee Related
-
2008
- 2008-12-19 US US12/809,559 patent/US8263003B2/en not_active Expired - Fee Related
- 2008-12-19 ES ES08868359T patent/ES2370572T3/es active Active
- 2008-12-19 EP EP08868359A patent/EP2232503B1/fr not_active Not-in-force
- 2008-12-19 JP JP2010538753A patent/JP2011506990A/ja active Pending
- 2008-12-19 WO PCT/EP2008/068002 patent/WO2009083491A1/fr active Application Filing
- 2008-12-19 AT AT08868359T patent/ATE521973T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2009083491A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2925752B1 (fr) | 2012-03-09 |
US8263003B2 (en) | 2012-09-11 |
ATE521973T1 (de) | 2011-09-15 |
FR2925752A1 (fr) | 2009-06-26 |
ES2370572T3 (es) | 2011-12-20 |
US20110095208A1 (en) | 2011-04-28 |
EP2232503B1 (fr) | 2011-08-24 |
JP2011506990A (ja) | 2011-03-03 |
WO2009083491A1 (fr) | 2009-07-09 |
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