Device for electromagnetic radiation treatment of a reactive medium

• US 8,758,696 B2
• Filed: 03/19/2009
• Issued: 06/24/2014
• Est. Priority Date: 03/20/2008
• Status: Active Grant

• Current Assignee: Sairem Societe Pour LApplication Industrielle De La Recherche En Electronique Et Micro Ondes
• Original Assignee: Sairem Societe Pour LApplication Industrielle De La Recherche En Electronique Et Micro Ondes
• Inventors: Grange, Andre, Grandemenge, Adrien, Jacomino, Jean-Marie
• Primary Examiner(s): Tai, Xiuyu
• Application Number:
  US12/933,051
• Publication Number:
  US 20110052456A1
• Time in Patent Office: 1,923 Days
• Field of Search: 422/186, 422/186.29, 219/690, 219/678, 219/702, 219/761, 204/157.15
• US Class Current: 422/186
• CPC Class Codes: B01J 19/126 Microwaves
• CPC Class Codes: B01J 2219/1215 Single reactor
• CPC Class Codes: B01J 2219/1227 Reactors comprising tubes with open ends
• CPC Class Codes: B01J 2219/1254 Static supports
• CPC Class Codes: B01J 2219/1269 Microwave guides
• CPC Class Codes: B01J 2219/1293 Single source
• CPC Class Codes: H05B 6/70 Feed lines
• CPC Class Codes: H05B 6/806 for laboratory use

Abstract

The device for electromagnetic radiation treatment of a reactive medium includes an electromagnetic radiation generator, a reactor containing the reactive medium, and a device for transmitting the electromagnetic radiation generated by the generator to the reactive medium contained in the reactor. The device includes a wave guide for transmitting the electromagnetic radiation from the generator and a coupling means arranged to allow transfer within the reactive medium of the electromagnetic energy transmitted by the wave guide. The wave guide includes a curved segment in a general “U” shape forming a return loop from the wave guide. The device further includes a separation wall that isolates the generator form the reactor, with the reactor being connected to the curved segment. The curved segment extends at least partially from one side of the separation wall to the opposite generator.

Claims

1. A device for treating a reactive medium with electromagnetic radiation comprising an electromagnetic radiation generator, a reactor containing said reactive medium, and a device for transmitting the electromagnetic radiation generated by the generator to the reactive medium contained in said reactor, said device comprising a wave guide intended for transmitting the electromagnetic radiation of the generator and coupling means arranged so as to allow transfer into the reactive medium of the electromagnetic energy transmitted by the wave guide, wherein the wave guide includes:

a curved segment, in a general “

U”

shape, forming a return loop from said wave guide, and

first and second rectilinear segments facing each other and respectively connected to first and second ends of said curved segment, said rectilinear segments being substantially parallel or tilted relatively to each other,

and further comprising a separation wall allowing isolation of the generator from the reactor, said reactor being coupled with the curved segment of the wave guide and said curved segment extending on one side of the separation wall opposite to said generator, and

wherein the wave guide crosses the separation wall twice wherein;

the curved segment is positioned on a first side of the separation wall, and

the rectilinear segments are located on a second side of the separation wall.

2. The device according to claim 1, wherein the coupling means comprise an application device for applying the energy to the reactive medium.

3. The device according to claim 2, wherein the application device is an applicator of a near field type which at least partly extends into the interior of the reactor, said reactor forming a resonant cavity inside which the electromagnetic radiation is introduced by the applicator.

4. The device according to claim 3, wherein the applicator comprises at least one lossy transmission line having an interface for transfer of the electromagnetic energy towards the reactive medium.

5. The device according to claim 1, further comprising adaptation means designed for ensuring adaptation of the electromagnetic radiation to said reactive medium, said adaptation means comprising two mobile adaptation members positioned in the wave guide on either side of said curved segment.

6. The device according to claim 5, wherein a first mobile adaptation member is translationally mobile in the first rectilinear segment, and a second mobile adaptation member is translationally mobile in the second rectilinear segment.

7. The device according to claim 6, wherein adaptation means include driving means for driving into translation both mobile adaptation members, said driving means being directly coupled with both mobile adaptation members in order to translate them in the wave guide.

8. The device according to claim 1, wherein the second rectilinear segment is connected to a third rectilinear segment tilted relatively to said second segment and connected to said generator, so that the wave guide successively comprises, at the output of the generator, the third rectilinear segment, the second rectilinear segment, the curved segment and the first rectilinear segment.

9. The device according to claim 8, wherein the second and the third rectilinear segments extend in a first plane, and in that the curved segment and the first rectilinear part extend in a second plane tilted relatively to said first plane by a non-zero angle.

10. The device according to claim 5, wherein both mobile adaptation members are positioned on one side of the separation wall opposite to said reactor, the first and the second rectilinear segments at least partly extending on this side of the separation wall.

11. The device according to claim 7, wherein the means for driving into translation both mobile adaptation members are positioned on the side of the separation wall opposite to said reactor.

12. The device according to claim 1, further comprising a compartment inside which said generator is at least positioned, said compartment including said separation wall.

13. The device according to claim 12, wherein the compartment is inertized by filling it with a neutral gas comprising argon, carbon dioxide or nitrogen.

14. The device according to claim 12, wherein the compartment comprises shielding, notably on the separation wall, designed for protecting persons and/or instruments external to said compartment against any risk of explosion and/or fire occurring inside said compartment.

15. The device according to claim 7, wherein the driving means comprise a motor and a coupling part mechanically connecting both mobile adaptation members, said coupling part being translationally displaceable by said motor.