IP Library Granted Patent US 11,724,259
Granted Patent B2
US 11,724,259 · App. 16/315,217 · Granted Aug 15, 2023

Production of chemical reactors

Inventors: Jeff Op De Beeck (Mariakerke, BE); Paul Jacobs (Lokeren, BE); Wim De Malsche (Berchem, BE)
Assignee: PHARMAFLUIDICS nv
B01L3/502753B01D15/22B01D53/025B01L3/502707B01L3/502746B01L2300/0816B01L2300/0864B01L2400/086G01N30/6095
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Quick Facts
Patent No.
US 11,724,259
App. No.
16/315,217
Granted
Aug 15, 2023
Kind
B2
Abstract

A method for producing a chemical reactor, wherein the chemical reactor comprises one or more effective channels which comprise pillar structures, an input connected to one of the effective channels to allow fluid/gas into the effective channels and an output connected to one of the effective channels to remove at least one component of the liquid/gas. The method comprises obtaining an initial design of the reactor, further introducing into the initial design at least a structured area positioned adjacent to an effective channel of the one or more effective channels located at the edge of the initial design, the structured area not being fluidly connected to one of the effective channels, to obtain a further design and the production of the reactor according to the further design.

Claims (23)

1. A method for producing a chemical reactor implemented on a substrate, the chemical reactor comprising

one or more effective channels for transporting a liquid and/or gas during use of the chemical reactor, the effective channels optionally comprising pillar structures,

an input connected to one of the one or more effective channels to allow liquid/gas into the effective channels, and

an output connected to one of the one or more effective channels to remove at least one component of the liquid and/or gas from the effective channels,

the method comprising:

obtaining an initial design of the chemical reactor with the one or more effective channels, the input and the output;

further introducing into the initial design at least a portion of a structured area positioned adjacent to an effective channel of the one or more effective channels located at an edge of the initial design, the structured area not being fluidly connected to one of the effective channels, to obtain a further design;

the production of the chemical reactor according to the further design, the production comprising the generation of an electrical current density in the substrate, and wherein the structured area at least partially compensates during production for a non-uniformity in the electrical current density in effective channels positioned on the outside of the initial design,

wherein the structured area comprises a dummy channel, the dummy channel being a channel that is not used for transporting liquid and/or gas during use of the chemical reactor.

2. The method according to claim 1 , the structured area being positioned at less than 150 μm from the effective channel.

3. The method according to claim 1 , the one or more effective channels comprising a plurality of substantially parallel effective channels, the plurality of effective channels being fluidly interconnected in a meandering structure.

4. The method according to claim 1 , the dummy channel having a depth equal to the depth of the effective channels or the dummy channel having a depth smaller or greater than the depth of the effective channels.

5. The method according to claim 1 , the dummy channel having the same design as the effective channel positioned on the other side of the effective channel next to which the dummy channel is implemented.

6. The method according to claim 1 , the dummy channel comprising pillar structures.

7. The method according to claim 6 , the dummy channel having the same design as the effective channel positioned on the other side of the effective channel next to which the dummy channel is implemented.

8. The method according to claim 1 , in which the generation of the electrical current density in the substrate is done to form or process the channels and the pillar structures, the structured area being so selected that the electrical current density in the effective channels positioned on the outside of the initial design are symmetrical, with an error margin of 10%.

9. The method according to claim 1 , the production of the chemical reactor according to the further design comprising an anodising step.

10. The method according to claim 1 , the structured area being an area in which structural elements are arranged to increase an effective surface.

11. The method according to claim 1 , wherein the production of the chemical reactor comprises one or more chip manufacturing steps.

12. The method according to claim 1 , wherein,

the one or more effective channels comprises a plurality of substantially parallel effective channels, the plurality of parallel effective channels being fluidly interconnected in a meandering structure, and

the structured area comprises one or more dummy channels, the one or more dummy channels having the same design as the parallel effective channels, wherein the dummy channel is not used for transporting liquid and/or gas during use of the reactor.

13. The method according to claim 9 , wherein the anodising step provides porous pillar structures.

Assignments (2)
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNMENT AGREEMENT PREVIOUSLY RECORDED ON REEL 047899 FRAME 0968. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Mar 23, 2022
From: OP DE BEECK, JEFF; JACOBS, PAUL; DE MALSCHE, WIM
To: PHARMAFLUIDICS NV
Reel/Frame 059481/0890 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 4, 2019
From: OP DE BEECK, JEFF; JACOBS, PAUL; DE MALSCHE, WIM
To: PHARMAFLUIDICS NV
Reel/Frame 047899/0968 →
Priority Claims (1)
BE 2016/5556 · Jul 4, 2016 · national
Continuity (1)
Related Publication 20190314817A1 · Oct 17, 2019