Microreactor systems and methods

Patent metadata

Field	Value
Publication number	US-11110426-B2
Application number	US-201916682072-A
Country	US
Kind code	B2
Filing date	Nov 13, 2019
Priority date	Nov 11, 2014
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

In various embodiments, a microreactor features a corrosion-resistant microchannel network encased within a thermally conductive matrix material that may define therewithin one or more hollow heat-exchange conduits.

First claim

What is claimed is:

1. A method of fabricating a microreactor, the method comprising:
forming, by an additive manufacturing technique, a network of hollow microchannel conduits from a corrosion-resistant material; and
thereafter, surrounding the network of microchannel conduits with a matrix material having a thermal conductivity larger than a thermal conductivity of the corrosion-resistant material.

2. The method of claim 1 , wherein the additive manufacturing technique comprises three-dimensional printing.

3. The method of claim 1 , wherein the matrix material is formed around the microchannel conduits via a second additive manufacturing technique.

4. The method of claim 1 , wherein the matrix material is formed around the microchannel conduits via at least one of casting or powder pressing.

5. The method of claim 1 , wherein the corrosion-resistant material comprises at least one of niobium, molybdenum, tantalum, tungsten, rhenium, titanium, zirconium, glass, or stainless steel.

6. The method of claim 1 , wherein the matrix material comprises at least one of aluminum, gold, brass, silver, or copper.

7. The method of claim 1 , wherein a portion of the matrix proximate at least a portion of the microchannel network has a mixed and/or graded composition comprising the corrosion-resistant material and the matrix material.

8. The method of claim 1 , wherein at least one opening in the microchannel network is sealed before the network of microchannel conduits is surrounded with the matrix material, further comprising unsealing the at least one sealed opening after surrounding the network of microchannel conduits with the matrix material.

9. The method of claim 1 , further comprising, during or after the surrounding the network of microchannel conduits with the matrix material, defining within the matrix material one or more hollow heat-exchange conduits, the one or more heat-exchange conduits not intersecting the microchannel network.

10. A method of fabricating a microreactor, the method comprising:
providing a network of hollow microchannel conduits from a corrosion-resistant material; and
thereafter, by an additive manufacturing technique, surrounding the network of microchannel conduits with a matrix material having a thermal conductivity larger than a thermal conductivity of the corrosion-resistant material.

11. The method of claim 10 , wherein the additive manufacturing technique comprises three-dimensional printing.

12. The method of claim 10 , wherein providing the network of hollow microchannel conduits comprises forming the conduits via a thermomechanical processing technique.

13. The method of claim 10 , wherein the corrosion-resistant material comprises at least one of niobium, molybdenum, tantalum, tungsten, rhenium, titanium, zirconium, glass, or stainless steel.

14. The method of claim 10 , wherein the matrix material comprises at least one of aluminum, gold, brass, silver, or copper.

15. The method of claim 10 , wherein a portion of the matrix proximate at least a portion of the microchannel network has a mixed and/or graded composition comprising the corrosion-resistant material and the matrix material.

16. The method of claim 10 , wherein at least one opening in the microchannel network is sealed before the network of microchannel conduits is surrounded with the matrix material, further comprising unsealing the at least one sealed opening after surrounding the network of microchannel conduits with the matrix material.

17. The method of claim 10 , further comprising, during or after the surrounding the network of microchannel conduits with the matrix material, defining within the matrix material one or more hollow heat-exchange conduits, the one or more heat-exchange conduits not intersecting the microchannel network.

18. A method of fabricating a microreactor, the method comprising:
providing a network of hollow microchannel conduits from a corrosion-resistant material, wherein at least one opening in the microchannel network is sealed;
surrounding the network of microchannel conduits with a matrix material having a thermal conductivity larger than a thermal conductivity of the corrosion-resistant material; and
thereafter, unsealing the at least one sealed opening.

19. The method of claim 18 , wherein a portion of the matrix proximate at least a portion of the microchannel network has a mixed and/or graded composition comprising the corrosion-resistant material and the matrix material.

20. The method of claim 18 , further comprising, during or after the surrounding the network of microchannel conduits with the matrix material, defining within the matrix material one or more hollow heat-exchange conduits, the one or more heat-exchange conduits not intersecting the microchannel network.

Assignees

• Aimone Paul R
• Abouaf Marc
• Hogan Patrick
• Starck H C Inc

Inventors

• Aimone Paul R
• Abouaf Marc
• Hogan Patrick

Classifications

• B22F10/43

  characterised by material · CPC title

• B22F10/38

  to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures · CPC title

• B22F10/25

  Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS] · CPC title

• B22F10/14

  by jetting of binder onto a bed of metal powder · CPC title

• B22F10/28

  Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM] · CPC title