IP Library Granted Patent US 11,746,444
Granted Patent B2
US 11,746,444 · App. 18/068,342 · Granted Sep 5, 2023

Carbon fiber fabrication systems and methods

Inventors: Divyaraj Desai (Montville, NJ); Gabriel Iftime (Newark, CA); Dane Andrew Boysen (Anchorage, AK); Jessica Louis Baker Rivest (Palo Alto, CA)
Assignee: Palo Alto Research Center Incorporated
D01F9/1272B01J23/06D10B2101/12
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Quick Facts
Patent No.
US 11,746,444
App. No.
18/068,342
Granted
Sep 5, 2023
Kind
B2
Abstract

Systems comprising a carbon fiber reactor for fabricating carbon fiber, the reactor comprising a receptacle for containing a carbon-metal melt, and a plurality of nozzles through which a plurality of menisci are formed by the carbon-metal melt for contact with a carbon seed to fabricate the carbon fiber; and a heater for heating the carbon-metal melt.

Claims (20)

1. A system comprising: a carbon fiber reactor for fabricating carbon fiber, the reactor comprising a receptacle for containing a carbon-metal melt, and a plurality of nozzles through which a plurality of menisci are formed by the carbon-metal melt for contact with a carbon seed to fabricate the carbon fiber; and a heater for heating the carbon-metal melt.

2. The system of claim 1 , further comprising a carbon source coupled to the carbon fiber reactor such that the receptacle of the carbon fiber reactor receives the carbon source, the carbon-metal melt comprising at least a portion of the carbon source.

3. The system of claim 1 , wherein the receptacle has a volume capacity of about 1 mL to about 1,000 mL.

4. The system of claim 1 , wherein the plurality of nozzles comprises about 100,000 to about 50 million separate nozzles.

5. The system of claim 1 , wherein the plurality of nozzles have a diameter of about 1 μm to about 100 μm.

6. The system of claim 1 , wherein the plurality of nozzles have a length of about 1 μm to about 1,000 μm.

7. The system of claim 1 , further comprising a fiber winder to receive fabricated carbon fiber from the carbon fiber reactor.

8. The system of claim 1 , wherein the carbon-metal melt comprises a carbon source selected from the group consisting a hydrocarbon gas, a hydrocarbon liquid, a hydrocarbon solid, a natural gas, a flared natural gas, a biogas, a pyrolysis gas, petcoke, coal, soot, recycled pure carbon fiber waste, recycled carbon fiber composite waste, a plastic, a recycled plastic, a biomass, organic waste, petroleum, an oil, biochar, a fossil fuel, and the like, and any combination thereof.

9. The system of claim 8 , wherein the carbon source is derived from a pyrolysis reaction of a reaction gas selected from the group consisting of a hydrocarbon gas, a natural gas, a flared natural gas, a biogas, a pyrolysis gas, and any combination thereof.

10. The system of claim 1 , wherein the heater is selected from the group consisting of an electric heater, and induction heater, a boiler, a heat exchanger, and any combination thereof.

11. The system of claim 10 , wherein a source of the heater is selected from the group consisting of tubular heating elements, cartridge heaters, strip heaters, cast-in heaters, and the like, and any combination thereof.

12. A system comprising: a carbon fiber reactor for fabricating carbon fiber, the reactor comprising a receptacle for containing a carbon-metal melt, and a plurality of nozzles through which a plurality of menisci are formed by the carbon-metal melt for contact with a carbon seed to fabricate the carbon fiber.

13. The system of claim 11 , further comprising a carbon source coupled to the carbon fiber reactor such that the receptacle of the carbon fiber reactor receives the carbon source, the carbon-metal melt comprising at least a portion of the carbon source.

14. The system of claim 11 , wherein the receptacle has a volume capacity of about 1 mL to about 1,000 mL.

15. The system of claim 11 , wherein the plurality of nozzles comprises about 100,000 to about 50 million separate nozzles.

16. The system of claim 11 , wherein the plurality of nozzles have a diameter of about 1 μm to about 100 μm.

17. The system of claim 11 , wherein the plurality of nozzles have a length of about 1 μm to about 1,000 μm.

18. The system of claim 11 , further comprising a fiber winder to receive fabricated carbon fiber from the carbon fiber reactor.

19. The system of claim 11 , wherein the carbon-metal melt comprises a carbon source selected from the group consisting a hydrocarbon gas, a hydrocarbon liquid, a hydrocarbon solid, a natural gas, a flared natural gas, a biogas, a pyrolysis gas, petcoke, coal, soot, recycled pure carbon fiber waste, recycled carbon fiber composite waste, a plastic, a recycled plastic, a biomass, organic waste, petroleum, an oil, biochar, a fossil fuel, and the like, and any combination thereof.

20. The system of claim 19 , wherein the carbon source is derived from a pyrolysis reaction of a reaction gas selected from the group consisting of a hydrocarbon gas, a natural gas, a flared natural gas, a biogas, a pyrolysis gas, and any combination thereof.

Assignments (6)
SECOND LIEN NOTES PATENT SECURITY AGREEMENT Recorded Jul 2, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 071785/0550 →
FIRST LIEN NOTES PATENT SECURITY AGREEMENT Recorded Apr 11, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 070824/0001 →
SECURITY INTEREST Recorded Feb 13, 2024
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 066741/0001 →
SECURITY INTEREST Recorded Nov 20, 2023
From: XEROX CORPORATION
To: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 065628/0019 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVAL OF US PATENTS 9356603, 10026651, 10626048 AND INCLUSION OF US PATENT 7167871 PREVIOUSLY RECORDED ON REEL 064038 FRAME 0001. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jun 28, 2023
From: PALO ALTO RESEARCH CENTER INCORPORATED
To: XEROX CORPORATION
Reel/Frame 064161/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 20, 2023
From: PALO ALTO RESEARCH CENTER INCORPORATED
To: XEROX CORPORATION
Reel/Frame 064038/0001 →