WO2018007732A1 - Procédé de dépôt d'un catalyseur à la surface interne des micro-canaux d'un échangeur-réacteur - Google Patents
Procédé de dépôt d'un catalyseur à la surface interne des micro-canaux d'un échangeur-réacteur Download PDFInfo
- Publication number
- WO2018007732A1 WO2018007732A1 PCT/FR2017/051789 FR2017051789W WO2018007732A1 WO 2018007732 A1 WO2018007732 A1 WO 2018007732A1 FR 2017051789 W FR2017051789 W FR 2017051789W WO 2018007732 A1 WO2018007732 A1 WO 2018007732A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reactor
- exchanger
- channels
- deposition process
- process according
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000000151 deposition Methods 0.000 title claims abstract description 11
- 239000000725 suspension Substances 0.000 claims abstract description 27
- 238000011049 filling Methods 0.000 claims abstract description 17
- 230000003197 catalytic effect Effects 0.000 claims abstract description 11
- 238000005137 deposition process Methods 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 241000264877 Hippospongia communis Species 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- -1 porous bars Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000000629 steam reforming Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 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
- B01J19/0093—Microreactors, e.g. miniaturised or microfabricated reactors
-
- 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
-
- 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
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00788—Three-dimensional assemblies, i.e. the reactor comprising a form other than a stack of plates
- B01J2219/0079—Monolith-base structure
-
- 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
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00819—Materials of construction
- B01J2219/00835—Comprising catalytically active material
-
- 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
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00851—Additional features
- B01J2219/00858—Aspects relating to the size of the reactor
- B01J2219/0086—Dimensions of the 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00851—Additional features
- B01J2219/00858—Aspects relating to the size of the reactor
- B01J2219/00862—Dimensions of the reaction cavity itself
-
- 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
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00891—Feeding or evacuation
Definitions
- the present invention relates to a method of depositing a catalyst in the millimeter channels of a reactor-exchanger.
- the reforming reactor referred to in this invention is an integral unit consisting of different parts, represented by FIGS. 1 and 2.
- integral reactor is meant a reactor having no assembly interface.
- the inlet and outlet 2 of the exchanger-reactor are directly connected to the distribution zone 3, which supplies the exchange zone 4.
- the exchange zone 4 consists of straight and parallel channels: straight channels the reactive channels 5, the product channels 6 and the junctions 7 between two reactive channels 5 and a product channel.
- millimetric channel is meant a channel of millimeter size.
- reactive channels is meant the millimeter channels where a catalytic reaction takes place and the “product channels” the millimeter channels allowing the circulation of the product stream.
- Only the inlet 1, the distribution zone 3 and the reactive channels 6 are coated with a catalyst 8. In addition to the catalyst deposit 8, these channels may also be coated with a protective coating against corrosion 9 applied to the surface 10 of the reactive channels.
- the reactor itself is shown in FIG. 3.
- the reactor is a closed assembly, the reactive channels of which are accessible only through inlet 1 and outlet 2.
- a solution of the present invention is a method for depositing a catalyst on the internal surface of the microchannels of a reactor-exchanger comprising the following steps:
- the catalyst deposition method according to the invention may have one or more of the following characteristics:
- the exchanger-reactor does not have assembly interfaces and comprises an inlet 1 and an outlet 2, a distribution zone 3 supplying an exchange zone 4 consisting of reactive channels 5, product channels 6 and junctions 7 between the reactive channels and the channels produced, and the step iii) of filling is such that the catalytic suspension does not cross the junction 7 between the reactive channels and the channels produced.
- step iii) is carried out until a level at least 5 mm below the junction 7 between the reactive channels and the produced channels is reached.
- the pump 12 operates in a range of flow rates ranging from 5 ml / min to 2500 ml / min.
- the pump will allow for several sizes of exchanger-reactor, a coating speed of the order of 0.5 cm / min during filling and of the order of 100 cm / min during the emptying of the suspension .
- the filling is controlled using a dipstick.
- the gauge is vertical and parallel to the exchanger-reactor.
- the catalytic suspension is kept under agitation during the entire deposition process.
- said reactor exchanger is manufactured in one block by additive manufacturing.
- the reactive channels 5 have a diameter greater than or equal to 1.5 mm.
- the suspension is stirred for the duration of the deposition procedure. This stirring can preferably be carried out by means of a magnetic stirrer.
- the suspension is circulated into the exchanger-reactor by the use of a pump 12 which can operate in a range of flow rates ranging from 5 ml / min to 2500 ml / min. The use of a peristaltic pump is preferred here.
- the suspension is introduced through the inlet 1 into the reactor-exchanger.
- the suspension is successively distributed from the inlet 1 to the distribution zone 3 and to the exchange zone 4, to allow the reactive channels 5 to be coated without ever crossing the junction 7 between the reactive channels 5 and the product channels 6.
- the level of filling of the exchanger-reactor is read on a level gauge positioned on a tee fitting attached to the inlet 1 of the exchanger-reactor.
- the gauge is vertical and parallel to the exchanger-reactor.
- the gauge is made of a sufficiently transparent material to allow a direct reading of the height of the level. The material must also be compatible with the solvent used in the catalyst slurry.
- the gauge has an internal diameter at least one millimeter greater than the diameter of the reactive channels 5 and product channels 6, and must be at least 2 cm longer than the length of the reactive channels 5.
- the filling is carried out at a speed of between 5 and 20 ml / min, preferably less than 15 ml / min, in order to guarantee a homogeneous filling of the microchannels 5 present in the exchange zone 4.
- the filling of the reactive channels 5 is carried out until a level at least 5 mm below the junction 7 is reached.
- the exchanger-reactor After filling, the exchanger-reactor is drained in order to evacuate the catalyst suspension from the interior of the reactive channels 5, the exchange zone 4 and the inlet 1.
- the emptying flow rate is controlled and must allow a rate of shrinkage of the suspension within the reactive channels from 10 to 20 mm / sec.
- the procedure described above can be automated by replacing the level gauge with a level sensor with servo-control of the pump used to transport the catalyst slurry.
- the procedure described above can be repeated several times if the thickness of the catalyst deposit made in one pass is insufficient.
- the catalyst deposit must first be dried, preferably in a light stream of dry air or nitrogen, at a maximum flow rate of 2L / min, for a time depending on the nature of the solvent used for the production.
- catalyst suspension The amount of catalyst deposited inside the exchanger-reactor is known by measuring the amount of suspension recovered during the emptying phase, knowing the catalyst powder load of the suspension.
- the catalyst deposition process according to the invention makes it possible to coat the microchannels of an already assembled reactor-exchanger with catalyst, as shown in FIGS. 1 and 2 of the present invention.
- a suspension of catalyst with a viscosity of 4 mPa.s is available for a reactor-exchanger having 200 reactive channels with a diameter of 2 mm and a length of 20 cm, ie a total volume of 125.7 ml.
- the suspension is introduced into the exchanger-reactor at a flow rate of 10 ml / min and the level of filling is followed by reading the gauge placed at the inlet of the reactor and parallel to the reactor. The filling is carried out up to 5 mm from the junction between the reactive channels and the channels produced. Immediately after reaching the fill level, the suspension is drained at a rate of 0.63 L / min.
- the amount of suspension recovered is weighed and indicates a deposit of 20 mL of suspension inside the exchanger-reactor; the suspension being charged to 8% by volume of catalyst and the catalyst having a density of 4 g / ml, a catalyst mass deposited during this first pass of nearly 6.4 g is deduced therefrom.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3029957A CA3029957A1 (fr) | 2016-07-05 | 2017-07-03 | Procede de depot d'un catalyseur a la surface interne des micro-canaux d'un echangeur-reacteur |
US16/315,027 US20190308160A1 (en) | 2016-07-05 | 2017-07-03 | Method for depositing a catalyst on the inner surface of the microchannels of a reactor-exchanger |
CN201780050454.1A CN109641189A (zh) | 2016-07-05 | 2017-07-03 | 用于在反应器-交换器的微通道的内表面上沉积催化剂的方法 |
EP17746163.9A EP3481546A1 (fr) | 2016-07-05 | 2017-07-03 | Procédé de dépôt d'un catalyseur à la surface interne des micro-canaux d'un échangeur-réacteur |
JP2018568888A JP2019528157A (ja) | 2016-07-05 | 2017-07-03 | リアクタ−熱交換器のマイクロチャネルの内面に触媒を堆積させる方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1656425 | 2016-07-05 | ||
FR1656425A FR3053611B1 (fr) | 2016-07-05 | 2016-07-05 | Procede de depot d'un catalyseur a la surface interne des micro-canaux d'un echangeur-reacteur |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018007732A1 true WO2018007732A1 (fr) | 2018-01-11 |
Family
ID=57233605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2017/051789 WO2018007732A1 (fr) | 2016-07-05 | 2017-07-03 | Procédé de dépôt d'un catalyseur à la surface interne des micro-canaux d'un échangeur-réacteur |
Country Status (7)
Country | Link |
---|---|
US (1) | US20190308160A1 (fr) |
EP (1) | EP3481546A1 (fr) |
JP (1) | JP2019528157A (fr) |
CN (1) | CN109641189A (fr) |
CA (1) | CA3029957A1 (fr) |
FR (1) | FR3053611B1 (fr) |
WO (1) | WO2018007732A1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1547675A1 (fr) * | 2003-12-24 | 2005-06-29 | Corning Incorporated | Microstructures enrobée et son procédé de fabrication |
US20060057450A1 (en) * | 2004-04-29 | 2006-03-16 | The Regents Of The University Of California | Catalyst for microelectromechanical systems microreactors |
US20070087935A1 (en) * | 2005-10-19 | 2007-04-19 | Ju-Yong Kim | Micro reforming reactor for fuel cell and method of preparing the same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009031305A1 (de) * | 2009-06-30 | 2011-01-05 | Uhde Gmbh | Katalysatorbeschichteter Träger, Verfahren zu dessen Herstellung, ein damit ausgestatteter Reaktor und dessen Verwendung |
CN105451873B (zh) * | 2012-10-22 | 2018-04-27 | 万罗赛斯公司 | 微通道反应器中的费托方法 |
CN205095764U (zh) * | 2015-06-15 | 2016-03-23 | 山阳奥科粉体有限公司 | 一种基于微反应器的纳米合成装置 |
-
2016
- 2016-07-05 FR FR1656425A patent/FR3053611B1/fr active Active
-
2017
- 2017-07-03 EP EP17746163.9A patent/EP3481546A1/fr not_active Withdrawn
- 2017-07-03 WO PCT/FR2017/051789 patent/WO2018007732A1/fr unknown
- 2017-07-03 JP JP2018568888A patent/JP2019528157A/ja active Pending
- 2017-07-03 CA CA3029957A patent/CA3029957A1/fr not_active Abandoned
- 2017-07-03 US US16/315,027 patent/US20190308160A1/en not_active Abandoned
- 2017-07-03 CN CN201780050454.1A patent/CN109641189A/zh not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1547675A1 (fr) * | 2003-12-24 | 2005-06-29 | Corning Incorporated | Microstructures enrobée et son procédé de fabrication |
US20060057450A1 (en) * | 2004-04-29 | 2006-03-16 | The Regents Of The University Of California | Catalyst for microelectromechanical systems microreactors |
US20070087935A1 (en) * | 2005-10-19 | 2007-04-19 | Ju-Yong Kim | Micro reforming reactor for fuel cell and method of preparing the same |
Non-Patent Citations (1)
Title |
---|
VALENTINI ET AL., CATALYSIS TODAY, 2001 |
Also Published As
Publication number | Publication date |
---|---|
CN109641189A (zh) | 2019-04-16 |
JP2019528157A (ja) | 2019-10-10 |
CA3029957A1 (fr) | 2018-01-11 |
EP3481546A1 (fr) | 2019-05-15 |
FR3053611B1 (fr) | 2018-08-17 |
FR3053611A1 (fr) | 2018-01-12 |
US20190308160A1 (en) | 2019-10-10 |
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