WO2004091762A1 - Mischvorrichtung - Google Patents
Mischvorrichtung Download PDFInfo
- Publication number
- WO2004091762A1 WO2004091762A1 PCT/EP2004/003667 EP2004003667W WO2004091762A1 WO 2004091762 A1 WO2004091762 A1 WO 2004091762A1 EP 2004003667 W EP2004003667 W EP 2004003667W WO 2004091762 A1 WO2004091762 A1 WO 2004091762A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- temperature control
- mixing
- plates
- mixing chamber
- plate
- Prior art date
Links
- 238000006243 chemical reaction Methods 0.000 claims description 43
- 239000011888 foil Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000003054 catalyst Substances 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 5
- 229910000679 solder Inorganic materials 0.000 claims description 5
- 239000007795 chemical reaction product Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000009826 distribution Methods 0.000 description 37
- 239000000203 mixture Substances 0.000 description 22
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000007858 starting material Substances 0.000 description 4
- 238000005496 tempering Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000003570 air Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000000926 separation method 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/248—Reactors comprising multiple separated flow channels
- B01J19/249—Plate-type reactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/30—Micromixers
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2215/00—Auxiliary or complementary information in relation with mixing
- B01F2215/04—Technical information in relation with mixing
- B01F2215/0413—Numerical information
- B01F2215/0418—Geometrical information
- B01F2215/0431—Numerical size values, e.g. diameter of a hole or conduit, area, volume, length, width, or ratios thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4317—Profiled elements, e.g. profiled blades, bars, pillars, columns or chevrons
-
- 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
- B01J2219/24—Stationary reactors without moving elements inside
- B01J2219/2401—Reactors comprising multiple separate flow channels
- B01J2219/245—Plate-type reactors
- B01J2219/2451—Geometry of the reactor
- B01J2219/2453—Plates arranged in parallel
-
- 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
- B01J2219/24—Stationary reactors without moving elements inside
- B01J2219/2401—Reactors comprising multiple separate flow channels
- B01J2219/245—Plate-type reactors
- B01J2219/2451—Geometry of the reactor
- B01J2219/2456—Geometry of the plates
- B01J2219/2458—Flat plates, i.e. plates which are not corrugated or otherwise structured, e.g. plates with cylindrical shape
-
- 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
- B01J2219/24—Stationary reactors without moving elements inside
- B01J2219/2401—Reactors comprising multiple separate flow channels
- B01J2219/245—Plate-type reactors
- B01J2219/2461—Heat exchange aspects
- B01J2219/2462—Heat exchange aspects the reactants being in indirect heat exchange with a non reacting heat exchange medium
-
- 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
- B01J2219/24—Stationary reactors without moving elements inside
- B01J2219/2401—Reactors comprising multiple separate flow channels
- B01J2219/245—Plate-type reactors
- B01J2219/2461—Heat exchange aspects
- B01J2219/2462—Heat exchange aspects the reactants being in indirect heat exchange with a non reacting heat exchange medium
- B01J2219/2464—Independent temperature control in various sections of the reactor
-
- 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
- B01J2219/24—Stationary reactors without moving elements inside
- B01J2219/2401—Reactors comprising multiple separate flow channels
- B01J2219/245—Plate-type reactors
- B01J2219/2469—Feeding means
- B01J2219/247—Feeding means for the reactants
-
- 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
- B01J2219/24—Stationary reactors without moving elements inside
- B01J2219/2401—Reactors comprising multiple separate flow channels
- B01J2219/245—Plate-type reactors
- B01J2219/2474—Mixing means, e.g. fins or baffles attached to the plates
-
- 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
- B01J2219/24—Stationary reactors without moving elements inside
- B01J2219/2401—Reactors comprising multiple separate flow channels
- B01J2219/245—Plate-type reactors
- B01J2219/2476—Construction materials
- B01J2219/2477—Construction materials of the catalysts
- B01J2219/2479—Catalysts coated on the surface of plates or inserts
Definitions
- the invention relates to a device for mixing at least two media, with at least one mixing chamber.
- Devices of this type are usually used to mix a plurality of media which are subsequently to carry out one or more chemical reactions with one another.
- the mixture is fed into a reaction space in which the conditions, such as the temperature, are adapted to the requirements of the desired reaction. Due to the geometric shape, the dimensions or the mode of operation of such devices, the mixing of the media is usually incomplete and the temperature distribution is inhomogeneous, so that in addition to an intended main reaction, undesirable side reactions often occur.
- the mixing speed is often slower than the reaction speed, as a result of which the yield of the chemical reaction is essentially determined by the mixing device.
- the invention has for its object to provide a device with which a mixing of at least two media with simultaneous supply or removal of thermal energy can be realized.
- a device for mixing at least two media such as a mixing device, with the features of claim 1.
- the basic idea of the invention is to simultaneously mix and temper at least two media, in particular educts for a subsequent chemical reaction.
- a mixing device has at least one mixing chamber to which at least two media can be fed in order to be mixed with one another, for example by turbulence and / or diffusion.
- a mixture of three or more media with one another is also conceivable, the media then either being able to be fed simultaneously to a mixing chamber or being able to be mixed in a medium or mixture in succession in one or more mixing chambers.
- a temperature control channel through which energy can be supplied to or removed from the at least one mixing chamber.
- Such a mixing device makes it possible to ensure a desired temperature distribution, in particular a uniform temperature distribution, in the mixture while at least two media are being mixed. As a result, the processes of mixing and tempering are accelerated overall and, if appropriate, a yield of a subsequent reaction is increased.
- Energy in the form of thermal energy can preferably be transferred from a medium or mixture in the at least one mixing chamber through its wall to the at least one temperature control channel or vice versa.
- energy in the form of electrical energy can be transported through the at least one temperature control channel. This is preferably done with the help of power lines that are arranged in the at least one temperature control channel.
- a thermoelectric element such as a resistance heater, in particular with a positive temperature coefficient, or a Peltier cooling element can be used to convert thermal energy into electrical energy or vice versa.
- the temperature control channel is designed, for example, as part of a temperature control circuit, the temperature control circuit being, for example, a cooling circuit or a refrigerant circuit.
- the temperature control medium is a coolant, such as water or a water-glycol mixture, or a refrigerant, such as R134a or CO 2 . He can just as well
- the temperature control channel can also be opened so that ambient air can flow through it, for example, which can be delivered through the temperature control channel in particular with the aid of an air delivery device, such as a blower, a fan or an air pump.
- the mixing device preferably has a reaction chamber for a chemical reaction of the at least two media or their mixture, so that the mixture can be fed to the reaction chamber in the shortest possible way.
- a reaction chamber for a chemical reaction of the at least two media or their mixture, so that the mixture can be fed to the reaction chamber in the shortest possible way.
- the reaction chamber is particularly preferably channel-shaped, so that the at least two media or their mixture can flow through them.
- a catalyst for a desired chemical reaction in the at least one reaction chamber is also particularly advantageous. This supports a desired reaction and, under certain circumstances, suppresses undesired side reactions compared to the desired reaction.
- a catalyst material is preferably applied to a wall of the at least one reaction chamber. It is also advantageous if a wall of the at least one reaction chamber consists at least partially of a catalyst material.
- the at least one mixing chamber is particularly preferably integrated into the at least one reaction chamber. This enables the reaction to begin as early as during the mixing and tempering process and shortens the overall process of “mixture-tempering-reaction” mentioned above, and further increases the corresponding yield.
- the at least one mixing chamber is in a main flow. flow direction.
- the at least one mixing chamber is advantageously channel-shaped, so that the at least two media or their mixture can be easily tempered during a flow through the mixing chamber.
- the mixing device works according to the parallel flow or counterflow principle.
- the at least one temperature control channel runs essentially parallel to the main flow direction of the at least one mixing chamber.
- the parallel flow or counterflow principle is implemented.
- the mixing device works according to the cross-flow principle.
- the at least one temperature control channel runs transversely to the main flow direction of the at least one mixing chamber.
- the flow paths then intersect in a suitable projection, so that the cross-flow principle is realized.
- the at least one mixing chamber has one or more turbulators. This prevents an otherwise possible laminar flow of the at least two media and enables a more homogeneous mixing. It is particularly preferred for at least one turbulator to be designed as a crosspiece, which may result in a very simple construction of the mixing device.
- the mixing device has one inlet for the at least two media and one outlet for at least one Mixed or reaction product, so that the device can be connected to corresponding lines in a simple manner. If appropriate, the mixing device is also provided with an inlet and an outlet for the temperature control medium.
- the wall of the at least one mixing chamber consists of a plurality of plates and / or foils lying one against the other, the at least one temperature control channel and the at least one mixing chamber being provided by cutouts in the plates or foils.
- the mixing device particularly preferably consists of a plurality of plates and / or foils lying against one another, in which case the at least one reaction chamber may also be formed by one or more recesses in the plates or foils.
- the . two outermost plates / foils can be connected to one another via a holding device. This makes it possible on the one hand to fix and clamp a stack of plates during the manufacture of the mixing device, on the other hand the mixing device is stabilized during operation, for example against exposure to media under pressure, so that the strength and consequently the service life of the mixing device is extended.
- the dimensions of the plates or foils are advantageously chosen so that the channels and chambers formed by recesses have a cross-sectional area sufficient for the intended application and that the mixer is adequately stable during operation, preferably also one compact design in terms of size and weight should be considered.
- the plates or foils preferably have a thickness between 0.05 mm and 1.5 mm, particularly preferably between 0.2 mm and 2.5 mm.
- the cutouts in the plates or foils preferably have a width between 1 mm and 10 mm, particularly preferably between 2 mm and 10 mm.
- At least one component of the device is preferably made from a metal, particularly preferably from aluminum, titanium or tantalum, from a stainless steel, from an alloy, particularly advantageously from a nickel alloy, or from a plastic.
- a soldered mixing device is advantageous, wherein a solder material preferably contains nickel, gold, silver and / or copper or particularly preferably consists thereof.
- a welded, in particular diffusion-welded, or glued mixing device is also advantageous.
- Fig. 1 shows a structure of a mixing device according to the present
- 3 shows a cross-sectional view of a mixing device
- 4a-4d each show a cross-sectional view of a mixing chamber of a mixing device
- 5a-5c each show a cross-sectional view of a mixing chamber of a mixing device.
- the mixing device 10 consists of several stacked plates 20a to 20m, which are made of titanium, tantalum, a stainless steel or a nickel alloy, for example.
- the plates are structured, for example, by means of etching, laser cutting, and in the case of materials which are not or difficult to etch, also by means of fine stamping or water jet cutting.
- the plates 20a to 20m are placed on top of one another and connected to one another in a fluid-tight manner, for example by welding, in particular diffusion welding, or soldering, in particular high-temperature soldering, nickel, gold, silver or copper solders being particularly suitable as the solder material.
- welding in particular diffusion welding, or soldering, in particular high-temperature soldering, nickel, gold, silver or copper solders being particularly suitable as the solder material.
- the cover plate 20a is made up of several individual layers and has three fastening openings 30, 31, 32 (see also Fig. 2a), through which fastening elements 40, 41, 42 designed as tubular pieces can be inserted.
- the base plate 20m has fastening openings 50, 51, 52 (see also FIG. 2m) which face the openings 31, 30, 32 of the cover plate 20a.
- Fastening elements 60, 61, 62 can be pushed through the openings 50, 51, 52, so that the pipe sections 40, 41, 42 also have the pipe sections trained elements 60, 61, 62 can be connected to one another in such a way that the mixing device meets increased strength requirements, for example with regard to internal pressure loads.
- the plates 20b to 20! have notches 70, 71, 72 (see also FIG. 2b), which serve to accommodate the tube pieces 40, 41, 42 and 60, 61, 62 in a space-saving manner.
- the pipe sections 40, 41, 42 are formed in one piece with the pipe sections 60, 61, 62 in pairs, namely pipe section 40 with 61, pipe section 41 with 60 and pipe section 42 with 62, so that the number of assembly steps can be kept low.
- the plates 20a to 20I have cutouts 80, 81, 82, 83, 84, 85, 86, 87 for guiding educt, product and temperature control agent flows of a chemical reaction, the connection of which is explained with reference to FIG. 2.
- FIG. 2 shows a set of plates 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 11, which correspond to plates 20a to 20m in FIG. 1, in a top view ,
- a mixing device results from stacking the plates in this order. Specifically, it is a cover plate 100 (Fig. 2a), a connection plate 101 (Fig. 2b), a redistribution plate 102 (Fig. 2c), a partition plate 103 (Fig. 2d), a first temperature control plate 104 (Fig. 2e ), a first heat-conducting plate 105 (FIG. 2f), a first distribution plate 106 (FIG. 2g), a mixing plate 107 (FIG.
- the mixing device can be assembled from ten different plates. The operation of the mixing device is as follows.
- a first medium which is to be mixed with a second medium, flows from the connection 112 in plate 100 through the recess 117 in plate 101, is then redistributed into plate 102 by means of the recess 122 a first distribution chamber formed by the recess 130 in plate 103, the recess 140 in plate 104, the recess 150 in plate 105, the recess 160 in plate 106, the recess 171 in plate 107, the recess 190 in plate 109 and the recess 200 is formed in plate 110. From the first distribution chamber, the flow of the first medium is distributed to first distribution channels 181 in plate 108, which are closed off by plates 107, 109.
- the second medium is passed through the cutouts 113, 118, 123 into a second distribution chamber which is formed by the cutouts 131, 141, 151, 172, 182, 191 and 201. From there, the second medium is distributed to second distribution channels 161 in plate 106, which are closed off by plates 105, 107.
- the first distribution channels 181 and the second distribution channels 161 are only separated from one another by the mixing plate 107, the recesses 177 of which connect the first to the second distribution channels (181 and 161) to form mixing chambers.
- the first and the second medium are mixed with one another, after which the mixed medium is collected in a collecting chamber which is formed by the recess 133 in plate 103, the recess 145 in plate 104, the recess 156 in plate 105, and the recess 196 in plate 109 and the recess 205 is formed in plate 110.
- the mixed medium finally flows from this collecting chamber through the recess 125 in plate 102 and the recess 120 in plate 101 to the connection 115 in the cover plate 100.
- a temperature control medium such as coolant
- a temperature control middle distribution chamber which is formed by the recesses 132, 152, 162, 173, 183, 192 in the plates 103, 105, 106, 107, 108, 109.
- the temperature control medium is guided through first temperature control channels 142, 202 in the temperature control plates 104, 110 to a first deflection chamber which is formed by the cutouts 153, 163, 174, 184, 193 in the plates 105, 106, 107, 108, 109 , From there, the temperature control medium flows via second temperature control channels 143, 203 in the plates 104, 110 to a second deflection chamber, which is given by the cutouts 154, 164, 175, 185, 194 in the plates 105, 106, 107, 108, 109, and then through third temperature control channels 144, 204 in the plates 104, 110 into a temperature control medium collecting chamber, which is formed by the cutouts 134, 155, 165, 176, 186, 195 in the plates 103, 105, 106, 107, 108, 109 is.
- the first, second and third temperature control channels are closed off by the plates 103, 105 and by the plates 109, 111, respectively
- the temperature control medium is collected in the temperature control medium collection chamber and is finally passed through the cutouts 126, 121 in the plates 102, 101 to the connection 116 in the cover plate 100.
- the cover plate 100 thus has a total of five connections, namely an inlet 112 for the first medium, an inlet 113 for the second medium, an outlet 115 for the mixed medium and an inlet 114 and an outlet 116 for the temperature control medium.
- the plates 100 and 102 can also be placed directly against one another, thereby saving one plate, namely the connecting plate 101.
- the function of the connection plate is then performed by the cover plate 100.
- the plates 100 and 103 could also be placed directly next to one another, so that only eight different types of plates are required to construct a mixing device.
- the channel-shaped mixing chambers which are formed by the cutouts 161, 177 and 181 in the plates 106, 107 and 108, respectively, are flowed through from top to bottom in the exemplary embodiment described here in FIG. 2 and are surrounded by walls which, on the one hand, the stacked plates 100, 101, 102, 103, 104, 105 and, on the other hand, are formed by the stacked plates 109, 110, 111.
- the temperature control channels 142, 143, 144 and the temperature control channels 202, 203, 204 which are each separated from the mixing chambers only by a plate, namely the plate 105 or the plate 109. Due to heat conduction through the plates 105, 109, energy in the form of heat is transported from the mixing chambers to the temperature control medium in the temperature control channels or vice versa. With the help of the flowing temperature control medium, the energy is dissipated convectively from the mixing chambers or supplied to the mixing chambers.
- the temperature control channels 142, 143, 144, 202, 203, 204 run transversely to the direction of flow through the mixing chambers, which is why, in the exemplary embodiment described, one can in principle also speak of a cross-flow heat exchanger. Because of the meandering flow through the temperature control channels, one can speak in particular of a cross-cocurrent or cross-countercurrent heat exchanger, depending on the direction in which the temperature control medium is passed through the mixing device.
- a further exemplary embodiment results from a modification of the described configuration in that the mixing chambers simultaneously serve as reaction chambers, that is to say the first medium reacts with the second medium. This is preferably done using a catalyst for the desired reaction, which is introduced into the mixing chambers, for example. The mixing chambers are then integrated into the reaction chambers, so that a very effective mixing and reaction of the first and the second medium with one another is made possible.
- a temperature control medium flow occurs in particular, which has a high heat transfer coefficient, so that heat can be supplied or removed with a high energy flow density.
- the reaction can take place at a more uniform temperature, advantageously under almost isothermal conditions, which results in improved effectiveness, that is to say an improved yield of the reaction.
- the channels in the individual layers are characterized by very small hydraulic diameters.
- a height between 0.05 mm and 1.5 mm and a width between 1 mm and 10 mm can be used for the distribution channels and a height between 0.2 mm and 1.5 mm and a height for the temperature control channels Width between 2 mm and 10 mm should be preferred.
- the mixing channels 177 in plate 107 are each interrupted by one or more transverse webs, so that the first and the second medium or their mixture in is diverted while flowing through the mixing chambers into the distribution channels 161 and / or 181 in the plates 106 and 108, respectively. This may create or excite turbulence in the mixture so that mixing is improved.
- FIG. 3 shows a further exemplary embodiment of a mixing device 300 according to the present invention in a cross-sectional view.
- the mixing device 300 is constructed from a plurality of plates stacked on top of one another and in principle divided into three areas, namely an inflow area 310, a mixing area 320 and a reactor area 330, such a separation not necessarily having to be observed in the operation of the mixing device 300.
- a reaction can already take place in the mixing area 320.
- the inflow area consists of a cover plate 340 with two recesses 350, 360 as inlets for a first educt 370 or a second educt 380.
- a first temperature control plate 390 with a plurality of recesses, which serve to form temperature control channels 400, the temperature control channels 400 into the drawing plane and / or out of the drawing plane can be flowed through by a temperature control medium.
- the first temperature control plate 390 also has two cutouts 410, 420 for the passage of the first educt 370 and the second educt 380, respectively.
- a first heat-conducting plate 430 connects to the first temperature control plate 390, likewise with two recesses 440, 450 for the passage of the first educt 370 or the second educt 380.
- the mixing area 320 is also composed of three plates.
- a first distribution plate 460 has a cutout 470 for the passage of the first educt 370, a cutout 480 for forming a distribution channel for the second educt 380 and cutouts 490 for forming mixed channels. nibble on.
- a recess 510 for the passage of the first educt 370 and recesses 520 for forming the mixing channels are provided in a mixing plate 500.
- a second distribution plate 530 has a cutout 540 for forming a distribution channel for the first educt 370, cutouts 550 for the formation of mixing chambers and a cutout 560 for the passage of the mixed educt streams 370, 380.
- the mixing plate 500 is arranged between the distribution plates 460, 530 in such a way that the cutouts 490, 520 and 550 come to lie one above the other offset.
- the mixing chambers formed in this way, in which the two educt streams 370, 380 meet, thus have transverse webs, so that turbulence in the flow is increased and thus mixing of the educts 370, 380 is improved.
- the mixture formed then passes into the reactor region 330, where it reaches a first reactor chamber 630 via a cutout 570 in a second heat-conducting plate 580, a cutout 590 in a second temperature control plate 600 and a cutout 610 in a third heat-conducting plate 620.
- the reactor chamber is formed by a recess 630 in a first reactor plate 640.
- Recesses 650 in the second temperature control plate 600 serve to apply a temperature control medium so that heat can be given off from the mixing chambers and / or the reactor chamber via the heat conducting plates to a cooling medium or from a heating medium in the temperature control channels to the starting material mixture.
- thermo conductivity control channels 400, 650 Realizing a low overall height of the heat-conducting plates (for example 1.5 mm or less, in particular 1 mm) and / or selecting a suitable material with high thermal conductivity for the heat-conducting plates enables high heat transfer.
- the flow direction of the temperature control channels 400, 650 is in the embodiment shown in FIG. 3 out of the drawing plane or into the Plane level, so that a cross-current, cross-direct current or cross-countercurrent heat transfer can be realized.
- the mixing device 300 Due to the modular construction of the mixing device 300 from a plurality of plates, there is the simple possibility of expanding the reactor region 330 by lining up a number of assemblies consisting of similar or identical plates. Further heat conducting plates 650, 660, 670, temperature control plates 680, 690 with temperature control channel cutouts 685, 695 and a reactor plate 700 with a second reactor chamber 710 are connected to the reactor plate 640. It goes without saying that, in other embodiments, further assemblies with heat conducting plates and / or temperature control plates and / or reactor plates can be connected without leaving the scope of the present invention.
- the reactor chambers are optionally provided with at least one catalyst, for example in that the heat-conducting plates connected thereto are coated with catalyst material or consist of catalyst material.
- a bottom plate 720 with a recess 730 to form an outlet for the reaction product 740 forms the lower end of the mixing device 300.
- the number of different panels can be reduced.
- the plates 340 and 430, the plates 390, 600, 680 and 690, the plates 580, 620, 650, 660, 670 and 720 or the plates 640 and 700 can each be identical to one another, so that 300 for the construction of the mixing device only seven different types of plates are necessary.
- Fig. 4 shows different ways of merging two educt streams.
- the mixing device 800 (FIG. 4a) has two heat conducting plates between two temperature control plates 810, 820 with temperature control channels 830, 840 850, 860, a first distribution plate 870 for a first medium 880, a second distribution plate 890 for a second medium 900 and a mixing plate 910 with a mixing chamber 920.
- the two feed streams are deflected symmetrically to one another, meet one another and are mixed with one another, in particular by turbulence and / or diffusion.
- thorough mixing occurs, as a result of which an essentially homogeneous mixture 930 can be achieved.
- two feed streams 1010, 1020 flow parallel to one another through distribution channels 1030, 1040 in distribution plates, between which a mixing plate 1050 with cutouts 1060 is arranged.
- Mixing channels are formed by the cutouts 1060, through which the distribution channels 1030, 1040 communicate with one another, so that an exchange and thus a mixing of the two starting materials 1010, 1020 takes place with one another.
- an externally controllable or at least wanted pressure difference between the educt streams 1010 and 1020 could establish or promote such an exchange.
- the temperature control channels 1070, 1080 in the temperature control plates 1090, 1100 serve to temperature control the distribution channels 1030, 1040 via the heat conducting plates 1110, 1120.
- the mixing device 1200 differs from the mixing device 800 essentially in that the educt streams 1210, 1220 do not meet symmetrically, but rather asymmetrically. This is accomplished in that the educt stream 1210 is deflected at a crossbar 1230 in a distribution plate 1240 and strikes the distribution channel 1270 of a further distribution plate via a recess 1250 in the mixing plate 1260.
- This asymmetrical variant is particularly suitable for mixing ratios different from one, for example if a small educt stream 1210 is to be admixed with a comparatively larger educt stream 1220.
- the mixing device 1300 In the mixing device 1300 (FIG.
- two starting materials 1310, 1320 flow symmetrically into a mixing chamber 1330, the cross section of which is larger than the sum of the cross sections of the distribution channels 1340, 1350.
- the flow slows down as it enters the mixing chamber, and because of the associated longer residence time in the mixing chamber 1330, improved mixing of the two starting materials 1310, 1320 may be possible.
- a staggered arrangement of the temperature control channels 1360 of the temperature control plate 1370 to the temperature control channels 1380 of the temperature control channels 1390 enables a more uniform temperature distribution along the main flow direction of the reactants 1310, 1320 or the mixture 1400.
- FIG. 5 shows three examples of mixing chambers which have cross webs which generate or increase turbulence to improve mixing.
- the mixing device 1500 FIG. 5a
- a flow of a mixture 1510 is divided several times and in each case brought back together and additionally bundled in the process.
- cross webs 1520 of a mixing plate 1530 are arranged offset to cross webs 1540, 1550 of a first distribution plate 1560 or a second distribution plate 1570.
- heat-conducting plates 1580, 1590 and a temperature control channel 1600 which, in this exemplary embodiment, runs parallel to a main flow direction of the mixture in the mixing chamber, that is to say from left to right in FIG. 5a.
- the mixing chamber 1710 of the mixing device 1700 (FIG. 5b) has transverse webs which alternately force a flow 1715 onto two opposite sides of the mixing chamber 1710.
- Crossbars 1720 of a mixing plate 1730 are alternately connected to crossbars 1740 of a first distribution plate 1750 and crossbars 1760 of a second distribution plate 1770.
- the mixing chamber 1710 is closed by two heat conducting plates ten 1780, 1790, which in turn border on tempering plates (not shown here) with tempering channels.
- a flow of a mixture 1810 is alternately split by free-standing crosspieces 1820 and forced to an edge of a mixing chamber 1860 by means of interconnected webs 1830, 1840, 1850.
- turbulence of a flow in the mixing chamber 1860 may be further increased.
- the mixture 1810 is tempered with the aid of a temperature-control medium which flows through temperature-control channels 1870, 1880 and heat to the mixture 181 via heat-conducting plates 1890, 1900 . 0 or receives from the mixture 1810.
- the present invention has been described using the example of a mixing device for two media intended for one reaction. However, it is pointed out that the mixing device according to the invention is also suitable for other purposes.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Accessories For Mixers (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/553,404 US20070053809A1 (en) | 2003-04-17 | 2004-04-06 | Mixing device |
EP04725926A EP1617937A1 (de) | 2003-04-17 | 2004-04-06 | Mischvorrichtung |
CA002522153A CA2522153A1 (en) | 2003-04-17 | 2004-04-06 | Mixing device |
JP2006505022A JP2006523523A (ja) | 2003-04-17 | 2004-04-06 | 混合装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10318061.3 | 2003-04-17 | ||
DE10318061A DE10318061A1 (de) | 2003-04-17 | 2003-04-17 | Mischvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004091762A1 true WO2004091762A1 (de) | 2004-10-28 |
Family
ID=33039141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/003667 WO2004091762A1 (de) | 2003-04-17 | 2004-04-06 | Mischvorrichtung |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070053809A1 (de) |
EP (1) | EP1617937A1 (de) |
JP (1) | JP2006523523A (de) |
CA (1) | CA2522153A1 (de) |
DE (1) | DE10318061A1 (de) |
WO (1) | WO2004091762A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006005106A1 (de) * | 2006-02-04 | 2007-08-09 | Modine Manufacturing Co., Racine | Wärmetauscher mit einer Anschlussplatte, insbesondere Ladeluftkühler |
JP2009521308A (ja) * | 2005-12-22 | 2009-06-04 | アルファ ラヴァル コーポレイト アクチボラゲット | 熱交換混合システム |
EP3531053A1 (de) * | 2018-02-26 | 2019-08-28 | Commissariat à l'énergie atomique et aux énergies alternatives | Reaktor-wärmetauscher, der einspritz- und verteilungskanäle der reagenzien umfasst |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0220338D0 (en) * | 2002-09-02 | 2002-10-09 | Secretary Trade Ind Brit | Production of variable concentration fluid mixtures |
JP4872320B2 (ja) * | 2005-11-22 | 2012-02-08 | Dic株式会社 | マイクロミキサー |
JP4466682B2 (ja) * | 2007-05-28 | 2010-05-26 | 株式会社日立プラントテクノロジー | 流体混合装置 |
JP5132996B2 (ja) * | 2007-06-19 | 2013-01-30 | 本田技研工業株式会社 | 排ガス処理装置 |
JP5023902B2 (ja) * | 2007-09-06 | 2012-09-12 | 株式会社日立プラントテクノロジー | 乳化装置 |
DE102008009199A1 (de) * | 2008-02-15 | 2009-08-27 | Forschungszentrum Karlsruhe Gmbh | Reaktionsmischersystem zur Vermischung und chemischer Reaktion von mindestens zwei Fluiden |
CA2826962C (en) * | 2012-10-11 | 2021-01-05 | Yves De Vos | Combined heat exchanging and fluid mixing apparatus |
RU2706211C2 (ru) * | 2016-01-25 | 2019-11-14 | Ансалдо Энерджиа Свитзерлэнд Аг | Охлаждаемая стенка компонента турбины и способ охлаждения этой стенки |
FR3074067B1 (fr) * | 2017-11-28 | 2019-12-20 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Reacteur echangeur comportant un systeme de distribution etagee de reactifs |
US11306979B2 (en) * | 2018-12-05 | 2022-04-19 | Hamilton Sundstrand Corporation | Heat exchanger riblet and turbulator features for improved manufacturability and performance |
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2004
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- 2004-04-06 JP JP2006505022A patent/JP2006523523A/ja active Pending
- 2004-04-06 CA CA002522153A patent/CA2522153A1/en not_active Abandoned
- 2004-04-06 EP EP04725926A patent/EP1617937A1/de not_active Ceased
- 2004-04-06 WO PCT/EP2004/003667 patent/WO2004091762A1/de active Application Filing
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WO2001068257A1 (en) * | 2000-03-10 | 2001-09-20 | Bioprocessors Corporation | Microreactor |
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JP2009521308A (ja) * | 2005-12-22 | 2009-06-04 | アルファ ラヴァル コーポレイト アクチボラゲット | 熱交換混合システム |
DE102006005106A1 (de) * | 2006-02-04 | 2007-08-09 | Modine Manufacturing Co., Racine | Wärmetauscher mit einer Anschlussplatte, insbesondere Ladeluftkühler |
EP3531053A1 (de) * | 2018-02-26 | 2019-08-28 | Commissariat à l'énergie atomique et aux énergies alternatives | Reaktor-wärmetauscher, der einspritz- und verteilungskanäle der reagenzien umfasst |
FR3078394A1 (fr) * | 2018-02-26 | 2019-08-30 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Reacteur echangeur comportant des canaux d'injection et de repartition de reactifs |
Also Published As
Publication number | Publication date |
---|---|
JP2006523523A (ja) | 2006-10-19 |
EP1617937A1 (de) | 2006-01-25 |
CA2522153A1 (en) | 2004-10-28 |
DE10318061A1 (de) | 2004-10-28 |
US20070053809A1 (en) | 2007-03-08 |
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