ITVR20080069A1 - CATALYST DEVICE - Google Patents
CATALYST DEVICE Download PDFInfo
- Publication number
- ITVR20080069A1 ITVR20080069A1 IT000069A ITVR20080069A ITVR20080069A1 IT VR20080069 A1 ITVR20080069 A1 IT VR20080069A1 IT 000069 A IT000069 A IT 000069A IT VR20080069 A ITVR20080069 A IT VR20080069A IT VR20080069 A1 ITVR20080069 A1 IT VR20080069A1
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- IT
- Italy
- Prior art keywords
- catalyst
- reactants
- catalyst material
- active surface
- reaction
- Prior art date
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- 239000003054 catalyst Substances 0.000 title claims description 38
- 239000000463 material Substances 0.000 claims description 26
- 239000000376 reactant Substances 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000003153 chemical reaction reagent Substances 0.000 claims description 4
- 238000005304 joining Methods 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 238000000629 steam reforming Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- -1 for example Chemical class 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
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- 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
-
- 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
- B01J19/32—Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
-
- 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
- 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
- B01J35/58—Fabrics or filaments
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
- C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
-
- 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
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/3221—Corrugated sheets
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- 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
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/32237—Sheets comprising apertures or perforations
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- 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
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/324—Composition or microstructure of the elements
- B01J2219/32408—Metal
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- 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
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/324—Composition or microstructure of the elements
- B01J2219/32466—Composition or microstructure of the elements comprising catalytically active material
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- 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
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/324—Composition or microstructure of the elements
- B01J2219/32491—Woven or knitted materials
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- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
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- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
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- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0225—Coating of metal substrates
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
- C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
- C01B2203/0233—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming step
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1005—Arrangement or shape of catalyst
- C01B2203/1011—Packed bed of catalytic structures, e.g. particles, packing elements
- C01B2203/1017—Packed bed of catalytic structures, e.g. particles, packing elements characterised by the form of the structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Cereal-Derived Products (AREA)
Description
DISPOSITIVO CATALIZZATORE CATALYST DEVICE
DESCRIZIONE DESCRIPTION
Il presente trovato riguarda un dispositivo catalizzatore. The present invention relates to a catalyst device.
Sono noti dispositivi catalizzatori che vengono inseriti all'interno di condotti entro i quali vengono fatti transitare dei composti reagenti che, in presenza dei dispositivi catalizzatori e di determinati parametri termodinamici, reagiscono in modo da fornire i prodotti di reazione desiderati . Catalyst devices are known which are inserted inside ducts through which reactive compounds are made to pass which, in the presence of the catalyst devices and certain thermodynamic parameters, react so as to provide the desired reaction products.
In particolare, nelle apparecchiature di steam reforming, sono attualmente utilizzati dei dispositivi catalizzatori che sono realizzati da un supporto in materiale inerte alla reazione, sul quale è applicato il materiale catalizzatore vero e proprio della reazione. In particular, in steam reforming equipment, catalyst devices are currently used which are made from a support in material inert to the reaction, on which the actual catalyst material of the reaction is applied.
In una tipologia di dispositivi catalizzatori di questo tipo, il supporto è costituito da un elemento lastriforme di forma allungata che risulta ripiegato a elica lungo il suo asse di sviluppo longitudinale. Sulle facce tra loro opposte dell'elemento lastriforme è applicato il materiale catalizzatore. In one type of catalyst devices of this type, the support consists of an elongated sheet-like element which is folded in a helix along its longitudinal development axis. The catalyst material is applied to the opposite faces of the sheet-like element.
Benché questa soluzione abbia il duplice vantaggio, rispetto ad altri dispositivi catalizzatori, di presentare una elevata superficie di contatto con i reagenti e di limitare notevolmente le cadute di pressione dei reagenti nel condotto, essa denota però l'inconveniente che, durante l'introduzione assiale del dispositivo catalizzatore nel condotto, il supporto tende facilmente a deformarsi e a rilasciare, di conseguenza, una parte del materiale catalizzatore su di esso applicato, il quale viene, quindi, disperso e reso inutilizzabile. Although this solution has the double advantage, compared to other catalyst devices, of presenting a high surface in contact with the reactants and considerably limiting the pressure drops of the reactants in the duct, it does however have the drawback that, during axial introduction of the catalyst device in the duct, the support tends to easily deform and consequently release a part of the catalyst material applied to it, which is therefore dispersed and rendered unusable.
Tale inconveniente risulta particolarmente evidente soprattutto qualora il dispositivo catalizzatore venga inserito in condotti presentanti uno sviluppo curvilineo o a spirale cilindrica. This drawback is particularly evident especially when the catalyst device is inserted in ducts having a curvilinear or cylindrical spiral development.
Compito precipuo del presente trovato è quello di risolvere gli inconvenienti riscontrati nella tecnica nota, mettendo a disposizione un dispositivo catalizzatore che possa essere agevolmente inserito in condotti di qualsiasi forma, senza perdite di materiale catalizzatore, e che, al contempo, definisca una elevata superficie di contatto tra materiale catalizzatore e i reagenti transitanti nel condotto senza determinare elevate perdite di carico nel condotto. The aim of the present invention is to solve the drawbacks encountered in the known art, by providing a catalyst device which can be easily inserted into ducts of any shape, without loss of catalyst material, and which, at the same time, defines a large surface of contact between the catalyst material and the reactants passing through the duct without causing high pressure drops in the duct.
All'interno di questo compito, un altro scopo del trovato è quello di realizzare un dispositivo catalizzatore che sia facilmente realizzabile con costi estremamente contenuti. Within this aim, another object of the invention is to provide a catalyst device which can be easily manufactured with extremely low costs.
Questo compito, nonché questi ed altri scopi ancora che meglio appariranno in seguito, vengono raggiunti da un dispositivo catalizzatore, secondo il trovato, come definito nella rivendicazione 1. This aim, as well as these and other objects which will become clearer hereinafter, are achieved by a catalyst device, according to the invention, as defined in claim 1.
Ulteriori caratteristiche e vantaggi del trovato risulteranno maggiormente dalla descrizione di una forma di esecuzione preferita ma non esclusiva del dispositivo catalizzatore, secondo il trovato, illustrata a titolo indicativo e non limitativo negli uniti disegni in cui: Further characteristics and advantages of the invention will become clearer from the description of a preferred but not exclusive embodiment of the catalyst device according to the invention, illustrated by way of non-limiting example in the accompanying drawings in which:
la figura 1 è una vista prospettica del dispositivo secondo il trovato in fase di inserimento in un condotto di convogliamento di reagenti; Figure 1 is a perspective view of the device according to the invention in the step of insertion into a conduit for conveying reagents;
la figura 2 illustra una sezione longitudinale di un condotto di convogliamento di reagenti con inserito un dispositivo secondo il trovato; la figura 3 mostra in alzato frontale il dispositivo secondo il trovato parzialmente sezionato; Figure 2 shows a longitudinal section of a reagent conveyance duct with a device according to the invention inserted; Figure 3 is a partially sectioned front elevation view of the device according to the invention;
le figure dalla 4 alla 6 rappresentano schematicamente in sequenza una serie di fasi possibili per l'ottenimento del dispositivo secondo il trovato . Figures 4 to 6 schematically represent in sequence a series of possible steps for obtaining the device according to the invention.
Con riferimento alle sopracitate figure, il dispositivo catalizzatore, secondo il trovato, globalmente indicato con il numero di riferimento 1, il quale comprendente un corpo 2 del dispositivo che è inseribile assialmente in un condotto 3, nel quale viene fatto transitare un flusso di reagenti. With reference to the aforementioned figures, the catalyst device, according to the invention, globally indicated with the reference number 1, which comprises a body 2 of the device which can be axially inserted into a duct 3, through which a flow of reactants is made to pass.
Sul corpo 2 del dispositivo è definita almeno una superficie attiva che è destinata ad essere lambita dal flusso dei reagenti e che risulta interessata da un materiale catalizzatore deputato ad intervenire nella reazione chimica tra i reagenti. On the body 2 of the device there is defined at least one active surface which is intended to be lapped by the flow of reactants and which is affected by a catalyst material designed to intervene in the chemical reaction between the reactants.
Secondo il trovato, il corpo 2 del dispositivo presenta, almeno parzialmente, una conformazione sostanzialmente tubolare. Inoltre, sempre secondo il trovato, la superficie attiva del corpo 2 presenta una pluralità di corrugazioni 4. According to the invention, the body 2 of the device has, at least partially, a substantially tubular conformation. Furthermore, again according to the invention, the active surface of the body 2 has a plurality of corrugations 4.
In particolare, la superficie attiva del corpo 2 del dispositivo comprende, opportunamente, sia la sua superficie laterale esterna 2a, che è destinata ad essere rivolta verso la parete interna del condotto , sia la sua superficie laterale interna 2b, che è rivolta verso l'asse del corpo 2 del dispositivo. In particular, the active surface of the body 2 of the device conveniently comprises both its external lateral surface 2a, which is intended to face the internal wall of the duct, and its internal lateral surface 2b, which faces the body axis 2 of the device.
Preferibilmente, le corrugazioni 4 della superficie attiva sono costituite da una pluralità di rilievi 4a ed avvallamenti 4b che si estendono longitudinalmente al corpo 2 del dispositivo e che sono disposti alternativamente tra loro attorno all'asse del corpo 2 del dispositivo. Preferably, the corrugations 4 of the active surface consist of a plurality of reliefs 4a and depressions 4b which extend longitudinally to the body 2 of the device and which are arranged alternately between them around the axis of the body 2 of the device.
Nell'esempio illustrato, i rilievi 4a sulla superficie laterale esterna 2a del corpo 2 del dispositivo corrispondono ad avvallamenti 4b sulla superficie laterale interna 2b e viceversa, in modo tale che il corpo 2 del dispositivo presenti in sezione trasversale una conformazione sostanzialmente a stella. In the illustrated example, the projections 4a on the external lateral surface 2a of the body 2 of the device correspond to depressions 4b on the internal lateral surface 2b and vice versa, so that the body 2 of the device has a substantially star-shaped conformation in cross section.
Questa strutturazione del corpo 2 del dispositivo consente di realizzare una elevata estensione della sua superficie attiva a contatto con i reagenti, senza produrre una eccessiva turbolenza nel flusso dei reagenti, con conseguenti perdite dì carico indesiderate lungo il condotto 3. This structuring of the body 2 of the device makes it possible to achieve a large extension of its active surface in contact with the reactants, without producing excessive turbulence in the flow of the reactants, with consequent unwanted pressure losses along the duct 3.
Nulla vieta, tuttavia, che le corrugazioni 4 possano avere anche altre conformazioni. Così, ad esempio, le corrugazioni 4 potranno, eventualmente, essere costituite da rilievi ed avvallamenti che si sviluppano circonferenzialmente attorno all'asse del corpo 2 del dispositivo e che si alternano tra loro lungo l'asse del corpo 2 del dispositivo. However, nothing prevents the corrugations 4 from having other conformations as well. Thus, for example, the corrugations 4 could possibly be constituted by projections and depressions which develop circumferentially around the axis of the body 2 of the device and which alternate with each other along the axis of the body 2 of the device.
Preferibilmente, le dimensioni delle corrugazioni 4 possono essere comprese sostanzialmente tra 2 mm e 100 mm di lunghezza e tra 2mm e 100 miti di larghezza, a seconda delle dimensioni del condotto 3. In particolare, con riferimento all'esempio di realizzazione mostrato nelle figure, la distanza circonferenziale D tra i picchi dei rilievi 4a può essere compresa sostanzialmente tra 1 min e 100 mm, mentre la distanza radiale d tra il fondo degli avvallamenti 4b e i picchi dei rilievi 4a ovvero l'altezza dei rilievi 4a rispetto al fondo degli avvallamenti 4b, può essere compresa sostanzialmente tra 0,1 mm e 100 rnm, a seconda delle esigenze e delle dimensioni del condotto 3 e del corpo 2 del dispositivo. Preferably, the dimensions of the corrugations 4 can be substantially comprised between 2 mm and 100 mm in length and between 2 mm and 100 mm in width, depending on the dimensions of the duct 3. In particular, with reference to the embodiment shown in the figures, the circumferential distance D between the peaks of the reliefs 4a can be substantially comprised between 1 min and 100 mm, while the radial distance d between the bottom of the depressions 4b and the peaks of the reliefs 4a or the height of the reliefs 4a with respect to the bottom of the depressions 4b , can be substantially comprised between 0.1 mm and 100 mm, depending on the requirements and dimensions of the duct 3 and of the body 2 of the device.
Vantaggiosamente, nel corpo 2 del dispositivo è definita una pluralità di aperture 6 che attraversano la sua parete laterale e che permettono il passaggio del flusso dei reagenti da una parte all'altra della parete laterale del corpo 2 del dispositivo. Le aperture 6 consentono, quindi, di aumentare la superficie attiva a contatto con i reagenti che transitano nel condotto 3 e di limitare le perdite di carico subite dal flusso dei reagenti nel superare il corpo 2 del dispositivo, nel loro percorso all'interno del condotto 3. Advantageously, a plurality of openings 6 are defined in the body 2 of the device which pass through its side wall and which allow the flow of reactants to pass from one part of the side wall of the body 2 of the device to the other. The openings 6 therefore allow to increase the active surface in contact with the reactants passing through the duct 3 and to limit the pressure losses suffered by the flow of the reactants in passing the body 2 of the device, in their path inside the duct. 3.
Preferibilmente, le aperture 6 presentano una dimensione sostanzialmente compresa tra 0,001 mm e 10 mm. Preferably, the openings 6 have a size substantially comprised between 0.001 mm and 10 mm.
E' da notare che il corpo 2 del dispositivo potrà essere integralmente o solo parzialmente realizzato nel materiale catalizzatore, il quale potrà variare in funzione del tipo di reazione che deve influenzare. It should be noted that the body 2 of the device can be integrally or only partially made of the catalyst material, which can vary according to the type of reaction it has to influence.
A titolo puramente esemplificativo, qualora il dispositivo secondo il trovato venga impiegato in una reazione di ''steam reforming", possono essere utilizzati, come materiale catalizzatore, metalli preziosi, quali platino, rodio, nichel. Diversamente, in una reazione di "water gas shift", possono essere, vantaggiosamente, utilizzati materiali catalizzatori costituiti da ossidi metallici, come, ad esempio, ossido di ferro, ossido di cromo, ossido di rame e/o ossido di zinco e loro combinazioni. Purely by way of example, if the device according to the invention is used in a "steam reforming" reaction, precious metals, such as platinum, rhodium, nickel, can be used as catalyst material. Otherwise, in a "water gas reaction" shift ", catalyst materials consisting of metal oxides, such as, for example, iron oxide, chromium oxide, copper oxide and / or zinc oxide and their combinations can be advantageously used.
Più preferibilmente, il corpo 2 del dispositivo presenta un'anima interna 7, che ha la funzione di supporto meccanico per il materiale catalizzatore. In particolare, l'anima interna 7 viene, opportunamente, realizzata in un materiale inerte, in relazione alla reazione tra i reagenti, ed è, almeno parzialmente, rivestita da uno strato 8 costituito dal materiale catalizzatore. In questo modo si ottiene un notevole risparmio nella quantità di materiale catalizzatore necessario alla realizzazione del corpo 2 del dispositivo. More preferably, the body 2 of the device has an internal core 7, which has the function of mechanical support for the catalyst material. In particular, the inner core 7 is suitably made of an inert material, in relation to the reaction between the reactants, and is, at least partially, coated with a layer 8 consisting of the catalyst material. In this way a considerable saving is obtained in the quantity of catalyst material necessary for the realization of the body 2 of the device.
Ad esempio, l'anima interna 7 può essere realizzata in un materiale metallico, quale un acciaio ad elevata resistenza meccanica alle temperature di reazione, ed il materiale catalizzatore su di essa applicato può essere costituito da un qualsiasi materiale idoneo a favorire la reazione chimica che si desidera ottenere tra i reagenti e, più in particolare, può essere, ad esempio, scelto dal gruppo che comprende argento, platino, rodio, nichel, molibdati ferrosi, ossidi metallici, quali ossidi di ferro, cromo, rame e zinco, e loro miscele e/o combinazioni. For example, the internal core 7 can be made of a metallic material, such as a steel with high mechanical resistance at the reaction temperatures, and the catalyst material applied to it can be made of any material suitable for promoting the chemical reaction that it is desired to obtain among the reactants and, more particularly, it can be, for example, selected from the group which includes silver, platinum, rhodium, nickel, ferrous molybdates, metal oxides, such as oxides of iron, chromium, copper and zinc, and mixtures and / or combinations.
Secondo una forma realizzativa preferita, il corpo 2 del dispositivo viene realizzato a partire da un elemento lastriforme 10 che viene sagomato a soffietto e ripiegato a cilindro mediante la riunione di due suoi bordi opposti, i quali possono poi essere, opportunamente, giuntati stabilmente mediante saldatura a punti, crimpatura o altro. According to a preferred embodiment, the body 2 of the device is made starting from a sheet-like element 10 which is shaped like a bellows and folded into a cylinder by joining its two opposite edges, which can then be suitably joined stably by welding. in dots, crimping or other.
Come illustrato nelle figure, l'elemento lastriforme 10 presenta, vantaggiosamente, una struttura reticolare e può essere costituito da un retino, la cui maglia definisce le aperture 6. As illustrated in the figures, the sheet-like element 10 advantageously has a reticular structure and can be constituted by a screen, the mesh of which defines the openings 6.
Più in dettaglio, tale retino, conformemente a quanto spiegato in precedenza, può presentare un'anima interna 7 costituita da una rete metallica che viene rivestita di materiale catalizzatore, ad esempio mediante procedimenti di "coating", "washcoating", "screen printing" o altri procedimenti di rivestimento o deposizione idonei. More in detail, this screen, in accordance with what has been explained above, can have an internal core 7 consisting of a metal mesh which is coated with catalyst material, for example by means of "coating", "washcoating", "screen printing" procedures. or other suitable coating or deposition processes.
In alternativa, l'elemento lastriforme 10 può anche essere costituito da un lamierino, realizzato, preferibilmente, tramite uno strato interno in materiale metallico, che costituisce l'anima interna 7, e da strati esterni di rivestimento in materiale catalizzatore, applicati sullo strato interno mediante uno qualsiasi dei procedimenti di rivestimento o deposizione sopra citati . Alternatively, the sheet-like element 10 can also be constituted by a lamination, preferably made by means of an internal layer of metal material, which constitutes the internal core 7, and by external coating layers in catalyst material, applied to the internal layer by any of the aforementioned coating or deposition processes.
Secondo una diversa forma realizzativa, il corpo 2 del dispositivo può anche essere costituito da un estruso tubolare rivestito o integralmente realizzato in materiale catalizzatore. According to a different embodiment, the body 2 of the device can also be constituted by a tubular extrusion coated or integrally made of catalyst material.
Si è, in pratica, constatato come il trovato sia in grado di raggiungere il compito e gli scopi ad esso preposti ed, in particolare, si sottolinea il fatto che il dispositivo catalizzatore, secondo il trovato, grazie alla sua forma sostanzialmente tubolare e alla presenza delle corrugazioni sulla sua superficie attiva, offre un'ampia superficie di contatto tra i reagenti ed il materiale catalizzatore anche con un suo ridotto sviluppo in lunghezza, risultando agevolmente inseribile nei condotti di convogliamento dei reagenti, senza subire deformazioni e, quindi, perdite di materiale catalizzatore, e senza determinare eccessive cadute di pressione nel condotto. In practice, it has been found that the invention is able to achieve the intended aim and objects and, in particular, it is emphasized that the catalyst device according to the invention, thanks to its substantially tubular shape and the presence of the corrugations on its active surface, offers a large contact surface between the reactants and the catalyst material even with its reduced length development, making it easy to insert into the reagent conveyance ducts, without undergoing deformations and, therefore, loss of material catalyst, and without causing excessive pressure drops in the duct.
Tutte le caratteristiche del trovato, su indicate come vantaggiose, opportune o simili, possono anche mancare o essere sostituite da equivalenti . All the characteristics of the invention, indicated above as advantageous, convenient or the like, can also be missing or be replaced by equivalents.
Le singole caratteristiche esposte in riferimento ad insegnamenti generali o a forme di realizzazione particolari, possono essere tutte presenti in altre forme di realizzazione o sostituire caratteristiche in queste altre forme di realizzazione. The individual characteristics set forth with reference to general teachings or particular embodiments can all be present in other embodiments or substitute characteristics in these other embodiments.
Il trovato così concepito è suscettibile di numerose modifiche e varianti, tutte rientranti nell'ambito del concetto inventivo. The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept.
In pratica i materiali impiegati nonché le dimensioni e le forme contingenti potranno essere qualsiasi, a seconda delle esigenze. In practice, the materials used, as well as the contingent shapes and dimensions, may be any according to requirements.
Inoltre, tutti i dettagli sono sostituibili da altri elementi tecnicamente equivalenti. Furthermore, all the details can be replaced by other technically equivalent elements.
Claims (8)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000069A ITVR20080069A1 (en) | 2008-06-18 | 2008-06-18 | CATALYST DEVICE |
| PCT/EP2009/052762 WO2009153073A1 (en) | 2008-06-18 | 2009-03-10 | Catalytic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000069A ITVR20080069A1 (en) | 2008-06-18 | 2008-06-18 | CATALYST DEVICE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITVR20080069A1 true ITVR20080069A1 (en) | 2009-12-19 |
Family
ID=40302285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT000069A ITVR20080069A1 (en) | 2008-06-18 | 2008-06-18 | CATALYST DEVICE |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | ITVR20080069A1 (en) |
| WO (1) | WO2009153073A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016010501A1 (en) | 2016-08-30 | 2018-03-01 | Jerzy Maćkowiak | packing |
| KR102334579B1 (en) * | 2019-12-27 | 2021-12-03 | 한국기계연구원 | Micro channel reactor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2408164A (en) * | 1942-04-25 | 1946-09-24 | Phillips Petroleum Co | Catalyst preparation |
| ATE23279T1 (en) * | 1981-08-20 | 1986-11-15 | Atomic Energy Authority Uk | CATALYTIC DEVICE. |
| CA2033241A1 (en) * | 1989-12-27 | 1991-06-28 | Shigehisa Muraoka | Method for purification of exhaust gas and apparatus therefor |
| US6117812A (en) * | 1998-10-06 | 2000-09-12 | China Petro-Chemical Corporation | Dual functional catalyst of packing type and the catalytic distillation equipment |
| JP2001129407A (en) * | 1999-11-09 | 2001-05-15 | Cataler Corp | Pipe-shapes catalyst for purifying exhaust gas |
| MXPA02006855A (en) * | 2000-01-11 | 2003-05-23 | Accenstus Plc | Catalytic reactor. |
| DE10337265A1 (en) * | 2003-08-13 | 2005-03-10 | Emitec Emissionstechnologie | Roll seam welded body for exhaust gas treatment |
-
2008
- 2008-06-18 IT IT000069A patent/ITVR20080069A1/en unknown
-
2009
- 2009-03-10 WO PCT/EP2009/052762 patent/WO2009153073A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009153073A1 (en) | 2009-12-23 |
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