Micro-reactor system assembly

Patent metadata

Field	Value
Publication number	US-9375698-B2
Application number	US-201414330278-A
Country	US
Kind code	B2
Filing date	Jul 14, 2014
Priority date	Mar 31, 2006
Publication date	Jun 28, 2016
Grant date	Jun 28, 2016

Abstract

A micro-reactor system assembly comprises a stack of at least n process modules ( 1 - 6 ), wherein n is an integer equal to or greater than 1, made from a rigid first material and comprising at least one reactive fluid passage ( 1 A, 1 B, 2 A, 3 A, 6 A) for accommodating and guiding a reactive fluid, and at least n+1 heat exchange modules ( 7, 8 ) made from a ductile second material other than said first material and comprising at least one heat exchange fluid passage ( 7 A, 8 A) for accommodating and guiding a heat exchange fluid, wherein each process module ( 1 - 6 ) is sandwiched between two adjacent heat exchange modules ( 7, 8 ).

First claim

What is claimed is:

1. A micro-reactor system assembly, comprising a stack of:
at least n process modules, wherein n is an integer equal to or greater than 1, each process module being made from a first material and comprising at least one reactive fluid passage extending between at least one reactive fluid inlet port and at least one reactive fluid outlet port for accommodating and guiding a reactive fluid, wherein, in case of at least two process modules, said at least two process modules are connected in series;
and at least n+1 heat exchange modules, each of said heat exchange modules being made from a second material other than said first material and comprising at least one heat exchange fluid passage extending between at least one heat exchange fluid inlet port and at least one heat exchange fluid outlet port for accommodating and guiding a heat exchange fluid, wherein said at least n+1 heat exchange modules are connected in series,
wherein each process module is sandwiched between two adjacent heat exchange modules, and

wherein said second material is more ductile than said first material.

2. A micro-reactor system assembly according to claim 1 , wherein
said first material is resistant to corrosion and pressure and is selected from the group consisting of stainless steel, hastelloy, tungsten, tantalum, titanium, ceramics, graphite and/or a combination of one or more of said first materials; and
said second material is heat conducting and is selected from the group consisting of aluminum, aluminum alloys, copper, copper alloys, silver and silver alloys and/or a combination of one or more of said second materials.

3. A micro-reactor assembly according to claim 1 , wherein said second material deforms when pressed against said at least n process modules for providing a fluid-tight seal between each heat exchange module and each process module at a contacting surface of each heat exchange module adjacent each heat exchange fluid inlet port and each heat exchange fluid outlet port.

4. A micro-reactor assembly according to claim 3 , wherein said second material elastically deforms under pressure.

5. A micro-reactor assembly according to claim 3 , wherein said second material plastically deforms under pressure.

6. A micro-reactor assembly according to claim 1 , wherein each process module further comprises a heat exchange fluid connection passage in fluid communication with said heat exchange fluid inlet port of one of said two adjacent heat exchange modules and is in further fluid communication with said heat exchange fluid outlet port of the other of said two adjacent heat exchange modules for fluidly connecting said at least one heat exchange fluid passage of said two adjacent heat exchange modules in series.

7. A micro-reactor assembly according to claim 6 , wherein each of said heat exchange fluid inlet port and each of said heat exchange fluid outlet port of each heat exchange module is defined by a circumferential edge, said circumferential edge deforming when pressed against a process module for providing a fluid-tight seal between each heat exchange module and each process module at a contacting surface of each heat exchange module adjacent each heat exchange fluid inlet port and each heat exchange fluid outlet port.

8. A micro-reactor system assembly according to claim 1 , wherein said at least n process modules comprise:
a mixing module, the at least one reactive fluid passage of which comprising a mixing portion for receiving and mixing at least two reactive fluids;
a thermal adjusting module disposed upstream of said mixing module for adjusting a temperature of said at least two reactive fluids prior to entering said mixing module; and
one or more retention modules disposed downstream of the mixing module for accommodating the reactive fluid mixture.

9. A micro-reactor system assembly according to claim 1 , wherein said at least one reactive fluid passage is a flat passage comprising curved and/or straight parts to enable a flow of the respective reactive fluid along a tortuous path, said flat passage having a width/height ratio in the range of 1:4 to 1:50.

10. A micro-reactor according to claim 1 , wherein said at least n process modules comprise at least two process modules which are externally connected in series.

11. A micro-reactor system assembly according to claim 1 , wherein said at least n+1 heat exchange modules comprise:
a first heat exchange module, the at least one heat exchange fluid inlet port of which communicates with a first heat exchange fluid reservoir and the heat exchange fluid outlet port of which communicates with a succeeding heat exchange module;
a second heat exchange module, the at least one heat exchange fluid outlet port of which communicates with a second heat exchange fluid reservoir and the heat exchange fluid inlet port of which communicates with a preceding heat exchange module; and
at least one further heat exchange module disposed between said first heat exchange module and said second heat exchange module and connected in series with the first heat exchange module and second heat exchange module,
wherein the series connection of two successive heat exchange modules is implemented internally via at least one heat exchange fluid connection passage passing through a respective one of the at least n process modules sandwiched by the two successive heat exchange modules.

12. A micro-reactor system assembly according to claim 1 , wherein said at least n process modules and/or said at least n+1 heat exchange modules comprise each a first plate and a second plate permanently joined with one another by soldering, brazing, welding or gluing, and wherein each of said reactive fluid passages, heat exchange fluid passages, reactive fluid inlet ports and reactive fluid outlet ports, and/or heat exchange fluid inlet ports and heat exchange fluid outlet ports is provided between said first plate and said second plate.

13. A micro-reactor system assembly according to claim 12 , wherein each of said reactive fluid passages, heat exchange fluid passages, reactive fluid inlet ports and reactive fluid outlet ports, and/or heat exchange fluid inlet ports and heat exchange fluid outlet ports is formed by ablating an inner surface of at least one of said first plate and said second plate.

14. A micro-reactor system assembly according to claim 12 , wherein a structured intermediate plate is sandwiched between said first plate and said second plate of said at least n+1 heat exchange modules to provide said heat exchange fluid passages.

15. A micro-reactor system assembly according to claim 1 , further comprising a first frame means and a second frame means, wherein said at least n process modules and said at least n+1 heat exchange modules are pressed against each other by said first and second frame means.

16. A micro-reactor assembly according to claim 15 , further comprising at least two tie-rods disposed at a circumference of said micro-reactor system assembly between said first and second frame means for pressing said at least n process modules and said at least n+1 heat exchange modules together.

Assignees

• Lonza Ag

Inventors

• Roberge Dominique
• Bieler Nikolaus
• Zimmermann Bertin
• Forbert Rainald

Classifications

• B01J2219/00808

  Sealing means · CPC title

• B01J2219/00891

  Feeding or evacuation · CPC title

• B01J2219/00867

  Microreactors placed in series, on the same or on different supports · CPC title

• B01J2219/00889

  Mixing · CPC title

• B01J2219/0086

  Dimensions of the flow channels · CPC title