WO2022148813A1 - Recombineur catalytique de dihydrogène - Google Patents
Recombineur catalytique de dihydrogène Download PDFInfo
- Publication number
- WO2022148813A1 WO2022148813A1 PCT/EP2022/050209 EP2022050209W WO2022148813A1 WO 2022148813 A1 WO2022148813 A1 WO 2022148813A1 EP 2022050209 W EP2022050209 W EP 2022050209W WO 2022148813 A1 WO2022148813 A1 WO 2022148813A1
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- WO
- WIPO (PCT)
- Prior art keywords
- catalytic
- blocks
- recombiner
- recombiner according
- block
- Prior art date
Links
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 74
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 239000003054 catalyst Substances 0.000 claims description 22
- 239000000919 ceramic Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000005215 recombination Methods 0.000 claims description 7
- 230000006798 recombination Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 230000000977 initiatory effect Effects 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000006555 catalytic reaction Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8671—Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1023—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1025—Rhodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/108—Hydrogen
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/19—Details relating to the geometry of the reactor
- B01J2219/192—Details relating to the geometry of the reactor polygonal
- B01J2219/1923—Details relating to the geometry of the reactor polygonal square or square-derived
Definitions
- the present invention relates to devices for the recombination of dihydrogen by the catalytic route, also called “catalytic recombiners”.
- catalytic recombiners comprise metal plates covered with a catalytic material, arranged parallel to each other in a support frame.
- the plates are likely to deform in the event of an earthquake, which can modify the gas flow characteristics between the plates and make them less efficient.
- Application FR2999442 describes a device comprising a honeycomb catalyst for the passive recombination of hydrogen.
- the honeycomb structure is self-supporting, being formed by an embossed metal strip rolled up on itself, this strip being coated with a catalytic material, for example platinum and palladium on alumina.
- a catalytic material for example platinum and palladium on alumina.
- two honeycomb catalysts are used, the first being arranged in a conduit of large section formed by a support frame for the catalysts, the second in a stack of smaller section overhanging the first.
- the two catalysts are arranged concentrically on metal supports, and have different compositions in terms of catalytic materials.
- a heating means can be integrated into the frame comprising the catalysts.
- Patent KR101312857B 1 describes a passive recombiner comprising a ceramic honeycomb support coated with a catalytic material, and arranged in a movable drawer relative to a support frame. The presence of the drawer makes it easy to extract the ceramic support for inspection or maintenance operations.
- Application JP H02 1377 03 discloses a catalytic recombiner comprising several stacked blocks and comprising a honeycomb substrate whose meshes can be of varied size from one block to another.
- the invention applies to both passive and active recombiners.
- bypassive it should be understood that no external action is necessary to obtain the recombination of dihydrogen, and the entry of the gaseous mixture takes place without external energy input, the flow being obtained by natural convection, in particular under the effect of an inlet-outlet temperature gradient.
- active an external action is exerted to force the gas flow at the inlet, for example the presence of a fan or a turbine.
- a catalytic dihydrogen recombiner comprising: At least one first catalytic block of a honeycomb substrate, preferably made of a material which conducts little heat, in particular a ceramic, carrying a first catalytic coating, at least one second catalytic block of a honeycomb substrate, preferably made of a material that conducts heat poorly, in particular a ceramic, carrying a second catalytic coating, this second block advantageously having the same section as the first, a support structure for the blocks one above the other and/ or next to each other.
- material with poor heat conductivity is meant a material with a thermal conductivity less than or equal to 20 Wm ⁇ K 1 at 20° C., better still less than or equal to 10 Wm ⁇ K 1 , even better still less than or equal to 7.5 Wm ⁇ K 1 , for example between 0.5 and 7.5 Wm-'K 1 .
- the substrate provides the block with its mechanical strength and its internal cohesion.
- the corresponding catalytic coating may be present at least on the internal surface of the cells, or even exclusively on the latter.
- the external lateral surface of the block is devoid of catalytic coating. This can help avoid directly exposing the material of a support frame of the block to the reaction occurring at the level of the catalytic material.
- the support structure may have a body defining a conduit within which the blocks are placed.
- the invention has multiple advantages.
- the alveolar structure of the blocks allows a high volume density of catalyst, thanks to a large exchange surface per unit volume.
- the catalytic coating which is preferably located inside the block, on the surface of the cells, is in fact protected from any risk of degradation during handling or during unexpected contact with the block.
- the blocks have the same cross-section gives the assembly a modular appearance which facilitates the interchangeability of the catalytic blocks depending, for example, on the nature of the catalyst(s) present, in order to best adapt the recombiner to the conditions of use and optimize its performance, for example in order to recombine as much or as little as possible of dihydrogen at the inlet, depending on the desired initiation temperature .
- the arrangement of the blocks can aim to obtain a lower starting temperature at the inlet.
- the interchangeability of the blocks allows them to be arranged in one order or another in order to favor a higher or lower initiation temperature.
- the modular nature can also make it possible, where appropriate, to use a greater or lesser number of catalytic blocks within the recombiner, and more or less thick catalytic blocks.
- the invention allows easy intervention to replace a single block, and facilitates the modularity/adaptability of the recombiner with respect to a greater release of dihydrogen in the volume to be protected. It suffices, for example, to increase the frontal surface exposed to the flow to allow a greater quantity of dihydrogen to penetrate into the recombiner by having a single model of catalytic block.
- the support structure holds the blocks on top of each other.
- the substrate has refractory properties, which allows the use of the recombiner in a high temperature environment in a normal operating situation (that is to say before the initiation of the catalytic reaction corresponding to the arrival dihydrogen).
- Another advantage of the refractory nature is that it is possible to envisage the use of organic materials (for example technical plastics) whose operating temperature is more limited than that of metal, to produce the structure of the frame of the recombiner.
- the rigidity of the substrate reduces the risk of modification of the section of the flow channels in the event of an earthquake, compared to conventional plate recombiners.
- the support structure comprises frames supporting the catalytic blocks and arranged to allow individual extraction of each of the frames independently of the other frame or frames.
- Each chassis comprises for example a lower frame on which the blocks are placed, this frame being extended upwards by at least two opposite uprights, between which the blocks are received.
- At least one fixing plate can be connected to the frame, to allow the fixing of the frame to the body of the recombiner.
- this plate has vertical oblong holes allowing adjustment of the vertical position of the frame within the body of the recombiner.
- the support structure can also comprise an upper frame, which is fixed in the body of the recombiner above the blocks and keeps them bearing against the lower frame.
- This upper frame can be secured to a fixing plate on the body of the recombiner.
- This plate may have vertical oblong holes allowing adjustment of the height of the upper frame in the body of the recombiner.
- At least one passage for an ascending gaseous flow can be provided between the blocks and the body of the recombiner, in particular an ascending gaseous generated passively, so as to create by Venturi effect a suction through the blocks.
- the Venturi effect is also particularly interesting for so-called "active" operating conditions, i.e. with a forced flow to be treated generated for example by a fan or a turbine, because the flow velocity is in this higher and adjustable case.
- At least two frames are fixed inside the body on each of two opposite faces of the body of the recombiner, leaving a gap between the frames both between those fixed to a same face and between those who are on opposite faces.
- Each substrate preferably has a structure with parallel channels, and various sections of channels are possible, for example sections in hexagon, or of another shape, for example circular or non-hexagonal polygonal, for example square.
- the general shape of the blocks can be variable, for example square, rectangular, cylindrical or other, in front view, to adapt to different environmental and/or flow conditions.
- the different blocks can be obtained by extrusion or by casting in a die, with the same cross-section but with thicknesses that may vary, if necessary, from one block to another.
- the various successive catalytic blocks arranged at different heights may or may not have the same thickness.
- the first and second catalytic coatings may differ at least by the nature of the catalyst.
- an inlet catalytic block which comprises a catalyst allowing initiation of the reaction at a lower temperature, and at least one catalytic block arranged above the latter and which comprises a catalyst requiring a higher temperature. raised to act.
- the first and second coatings can differ at least by the quantity of catalyst, and/or by the nature of the catalyst.
- the first and second blocks can have different thicknesses, as mentioned above.
- a thinner block can then comprise a lower quantity of catalyst, for example.
- the recombiner may include a heating member located close to at least one of the blocks.
- the recombiner comprises at least one resistive heating track deposited on at least one of the substrates. This can make it possible, for example, to more easily or quickly reach the initiation temperature necessary for the operation of the recombiner.
- This resistive track is for example deposited by printing an electrically conductive ink.
- the recombiner may include at least one temperature sensor to measure the temperature close to at least one of the blocks.
- the recombiner may comprise a greater or lesser number of catalytic blocks, and for example at least three catalytic blocks arranged one above the other, each of them of a different nature, composition and/or geometry, the number of catalytic blocks and the diversity of their characteristics within the same recombiner not being limited.
- the support structure can be configured to be suspended within the enclosure to be protected, and can include suspensions in the upper part for this purpose. These suspensions can be adjustable in height, if necessary, being for example telescopic. Alternatively, the support structure is configured to be fixed to a side wall of the enclosure to be equipped by means of a bracket.
- the support structure may include a hopper in the lower part, for example with a cross section of between 0.1 and 1 m 2 .
- the inlet section can be rectangular in shape, for example with sides of dimensions included for one between 0.2 and 0.4 m and for the other between 0.4 and 0.6 m (these dimensions not constituting an example and not being limiting).
- the support structure may have a vertical duct forming a chimney, the catalytic blocks being arranged above the hopper and at the entrance to this duct forming a chimney. The latter can be maintained by the aforementioned suspensions.
- the "monolithic" geometry of the substrate associated with the nature of the material (preferably both rigid and light) has the advantage of being able to produce thin blocks of large dimensions (for example lm by lm, and with a thickness 1 to 20 times lower, ranging from 5 to 10 cm for example).
- a further subject of the invention is thus, independently or in combination with the foregoing, a monolithic panel for the catalytic recombination of dihydrogen, in particular made with a cellular substrate which conducts little heat, preferably ceramic, characterized in that it has a thickness of 1 to 20 times smaller than its largest dimension, better still 5 to 20 times smaller, even better 10 to 20 times lower, the largest dimension being for example greater than or equal to 0.5 m, better still 0.75 m, even better still 1 m.
- the panel may be in the form of a slab of generally square or rectangular shape, with a long side measuring for example more than 0.5 m, better still more than 0.75 m, even better still 1 m or more.
- the thickness of such a panel is preferably at least five and better still at least ten times lower than the side of the slab, preferably being between 5 and 10 cm.
- Another subject of the invention is an enclosure, in particular for a reactor, the wall of which is at least partially lined with such panels.
- Figure 1 schematically represents, in perspective, an example of a catalytic recombiner according to the invention
- FIG 2 Figure 2 illustrates the operation of the recombiner
- FIG 3 represents in isolation, in a schematic and partial manner, an example of means for supporting the catalytic blocks inside the body of the recombiner
- FIG 4 represents in isolation, in perspective, an example of catalytic block
- Figure 5 shows the block of Figure 4 in front view
- Figure 6 shows in isolation the frame of the support means of Figure 3
- FIG 7 is an exploded view, schematic and partial, of a recombiner variant
- FIG 8 is a schematic view, in perspective, of a recombiner variant, the means for supporting the catalytic blocks appearing transparently
- Figure 9 is a cross section of the recombiner of Figure 8
- figure 10 illustrates the dismantling of the block support means
- FIG 11 figure 11 partially and schematically shows an example of a resistive track present on the substrate of a catalytic block
- Figure 12 schematically and partially shows a temperature sensor mounted near a catalytic block.
- FIG. 1 There is shown in Figures 1 and 2 a first example of a recombiner 1 according to the invention.
- This recombiner 1 comprises a catalytic block support structure, which can be arranged to be suspended in the enclosure to be protected, and can comprise for this purpose in the upper part a set of suspensions 2, as illustrated. These suspensions 2 are for example adjustable in height.
- the recombiner 1 is arranged for wall mounting, to be suspended from a bracket or to be placed on the ground.
- the recombiner 1 comprises a body 3 housing the catalytic blocks, as detailed below, surmounted by a duct 4 forming a chimney, connecting at its upper end to the suspensions 2.
- the body 3 can be connected below to a hopper 5, as shown, open downwards.
- the hydrogen is passively sucked up by the hopper 5 and a catalytic combustion takes place with the oxygen in the air, which produces water vapor, which leaves through the upper end of the conduit 4, as shown.
- the arrows show in Figure 2 the preferential flow direction resulting from a natural circulation caused by the temperature gradient resulting from the exothermic character of the catalytic reaction.
- the catalytic blocks can be supported in various ways within the recombiner.
- the body 3 houses two frames 21 for supporting the blocks.
- Each frame 21 comprises high and low grids 23 (the low grid being not visible in FIG. 3), supported by respective frames 24 and 28, which are interconnected by vertical columns 25, as illustrated in particular in FIG. .
- Three catalytic blocks 30a, 30b and 30c are for example arranged between the grids 23 and 24 of each frame 21, as illustrated in Figure 3.
- the latter comprises a ceramic substrate 31, traversed by a plurality of parallel channels 32 (also called cells), for example each of square section, as illustrated.
- All the blocks 30a, 30b and 30c can be made from the extrusion of the same ceramic substrate, for example cordierite (thermal conductivity of the order of 3 Wm ⁇ K 1 at 25° C.), and thus present the same cross section.
- cordierite thermo conductivity of the order of 3 Wm ⁇ K 1 at 25° C.
- the substrate 31 of the blocks is coated with a catalyst, for example one or more metals such as Pt, Pd, Rh, ..., at the level of the channels 32.
- a catalyst for example one or more metals such as Pt, Pd, Rh, ..., at the level of the channels 32.
- Each frame 21 may include uprights 26, which extend over at least part of the height of the blocks 30. These uprights 26 are for example made in one piece of metal with the frame 24 supporting the lower grid, as seen in figure 5.
- the upper grid support frame 23 can be connected on one edge to a fixing plate 27, making it possible to attach the frame 21 to the body 3, for example using screws not shown.
- suspensions 2 are arranged to be fixed on the side of the conduit 4, for example on two opposite sides as shown, and no longer at its upper end.
- the recombiner 1 comprises a body 3 forming a conduit, which houses for example four support frames 21 arranged in the section in two rows of two.
- Each frame 21 comprises for example a lower frame 24 for supporting the blocks and two opposite uprights 26 extending the frame 24 upwards, between which the blocks 30a, 30b and 30c are housed.
- the height of the uprights 26 in this example is less than the combined heights of the three blocks, so that the upper block 30c is only partially housed between the uprights 26.
- the frame 24 connects to a fixing plate 37, which extends downwards.
- This plate 37 has vertical oblong holes 40, which allow adjustment of the height of the frame 21 in the body 3, as illustrated by the arrows in Figure 8.
- Frames 38 held by plates 39 are fixed above the frames 21, to hold the blocks in place between the uprights 26 against vertical jolts, for example.
- These plates 39 have vertical oblong holes 40 just like the plates 37, making it possible to adjust their position in the body 3, so as to maintain the blocks wedged axially between the frames 24 and 38.
- the latter can carry grids, if necessary. .
- the plates 37 and 39 used to maintain the same set of catalytic blocks are fixed on the same face 3a or 3b of the body 3, as shown in Figure 9 in particular.
- the dimensions of the blocks and the frames 21 can be chosen so that there remain passages 45 on the three free sides of each frame 21, outside the blocks, as illustrated in FIG. 9.
- Such maintenance of the blocks 30a, 30b and 30c inside the recombiner allows both gas circulation through the blocks and circulation outside the blocks, around them inside the body 3.
- Such circulation can promote the creation of an air inlet through the blocks by the Venturi effect known as the “injector horn”, and improving the initiation of the catalytic reaction, for example.
- Each frame 21 can be extracted independently of the other three, as illustrated in figure 10, by removing the screws which hold the lower plate 37 to the body 3.
- the catalytic blocks advantageously have different catalytic properties; for example, the lowest inlet catalytic block 30a has a catalyst for initiating the hydrogen oxidation reaction with a lower temperature than the catalysts of the other blocks.
- the heat released during the oxidation heats the blocks 30b and 30c located above, which makes it possible to use for these blocks catalysts requiring a higher initiation temperature, but for example less expensive moreover.
- the size and shape of the cavities of the catalytic blocks will be adapted to the desired objective, in particular in terms of hydraulic pressure drops, flow speed, presence of any instrumentation, etc.
- the respective thicknesses e a , e b and e c of the blocks 30a, 30b and 30c are equal, but it is possible to use blocks of different thicknesses, or even to arrange within the same locker blocks having thicknesses which are for example half less than that of another block.
- the catalyst of a given formulation can be partially or totally deposited on the internal surfaces of the cells of the substrate.
- Each block or support of this block can be equipped with dedicated instrumentation and/or its own heating system, intended for example to accelerate the initiation of the catalytic reaction at a given concentration of 3 ⁇ 4.
- FIG. 12 illustrates the positioning of a temperature sensor 120 near a block 30.
- tracks of an electrical conductor 110 can advantageously be printed on the substrate 31 of the block, in order to produce a heating resistor, as very schematically illustrated in FIG. 11.
- a heating resistor is for example pressed against the inlet face of the lower catalytic block.
- the recombiner 1 is made with a duct forming a chimney of different height, or even without such a duct.
- the hopper 5 can be made with a different geometry and opening angle, and the recombiner can be made without such a hopper, if necessary.
- the catalytic blocks 30 can be maintained otherwise without departing from the scope of the present invention.
- the recombiner can have a completely passive character, not requiring the supply of energy by a source of energy, for example in electrical form, to start operating.
- the recombiner is associated with an actuator such as an extractor (fan, vacuum cleaner, etc.) at the level of the duct 4 forming a chimney, for example.
- an actuator such as an extractor (fan, vacuum cleaner, etc.) at the level of the duct 4 forming a chimney, for example.
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- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
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- Analytical Chemistry (AREA)
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22700472.8A EP4274684A1 (fr) | 2021-01-07 | 2022-01-06 | Recombineur catalytique de dihydrogène |
KR1020237026266A KR20230140449A (ko) | 2021-01-07 | 2022-01-06 | 촉매 디하이드로젠 리컴바이너 |
US18/271,234 US20240066467A1 (en) | 2021-01-07 | 2022-01-06 | Catalytic dihydrogen recombiner |
JP2023541343A JP2024505382A (ja) | 2021-01-07 | 2022-01-06 | 触媒二水素再結合器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2100138 | 2021-01-07 | ||
FR2100138A FR3118589A1 (fr) | 2021-01-07 | 2021-01-07 | Recombineur catalytique de dihydrogène |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022148813A1 true WO2022148813A1 (fr) | 2022-07-14 |
Family
ID=75850269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/050209 WO2022148813A1 (fr) | 2021-01-07 | 2022-01-06 | Recombineur catalytique de dihydrogène |
Country Status (6)
Country | Link |
---|---|
US (1) | US20240066467A1 (fr) |
EP (1) | EP4274684A1 (fr) |
JP (1) | JP2024505382A (fr) |
KR (1) | KR20230140449A (fr) |
FR (1) | FR3118589A1 (fr) |
WO (1) | WO2022148813A1 (fr) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02137703A (ja) | 1988-11-16 | 1990-05-28 | Hitachi Ltd | 酸素水素再結合器 |
DE19852954A1 (de) * | 1998-11-17 | 2000-05-18 | Forschungszentrum Juelich Gmbh | Rekombinator zum effektiven Beseitigen von Wasserstoff aus Störfallatmosphären |
US20010055360A1 (en) * | 1997-02-06 | 2001-12-27 | Masao Ogino | Apparatus for treating air containing hydrogen gas |
KR101312857B1 (ko) | 2012-02-08 | 2013-09-30 | (주) 세라컴 | 원자로 내의 수소를 제어하기 위한 피동 촉매형 재결합 장치 및 이를 이용한 원자로 내의 수소 제어 방법 |
FR2999442A1 (fr) | 2012-12-13 | 2014-06-20 | Cintrax | Utilisation d'un catalyseur nid d'abeille pour la recombinaison passive de l'hydrogene. |
KR101657049B1 (ko) * | 2015-07-29 | 2016-09-13 | 한국해양대학교 산학협력단 | 안내날개를 구비한 피동형 수소재결합기 |
-
2021
- 2021-01-07 FR FR2100138A patent/FR3118589A1/fr active Pending
-
2022
- 2022-01-06 US US18/271,234 patent/US20240066467A1/en active Pending
- 2022-01-06 WO PCT/EP2022/050209 patent/WO2022148813A1/fr active Application Filing
- 2022-01-06 JP JP2023541343A patent/JP2024505382A/ja active Pending
- 2022-01-06 KR KR1020237026266A patent/KR20230140449A/ko unknown
- 2022-01-06 EP EP22700472.8A patent/EP4274684A1/fr active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02137703A (ja) | 1988-11-16 | 1990-05-28 | Hitachi Ltd | 酸素水素再結合器 |
US20010055360A1 (en) * | 1997-02-06 | 2001-12-27 | Masao Ogino | Apparatus for treating air containing hydrogen gas |
DE19852954A1 (de) * | 1998-11-17 | 2000-05-18 | Forschungszentrum Juelich Gmbh | Rekombinator zum effektiven Beseitigen von Wasserstoff aus Störfallatmosphären |
KR101312857B1 (ko) | 2012-02-08 | 2013-09-30 | (주) 세라컴 | 원자로 내의 수소를 제어하기 위한 피동 촉매형 재결합 장치 및 이를 이용한 원자로 내의 수소 제어 방법 |
FR2999442A1 (fr) | 2012-12-13 | 2014-06-20 | Cintrax | Utilisation d'un catalyseur nid d'abeille pour la recombinaison passive de l'hydrogene. |
KR101657049B1 (ko) * | 2015-07-29 | 2016-09-13 | 한국해양대학교 산학협력단 | 안내날개를 구비한 피동형 수소재결합기 |
Also Published As
Publication number | Publication date |
---|---|
KR20230140449A (ko) | 2023-10-06 |
JP2024505382A (ja) | 2024-02-06 |
FR3118589A1 (fr) | 2022-07-08 |
US20240066467A1 (en) | 2024-02-29 |
EP4274684A1 (fr) | 2023-11-15 |
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