IP Library › Granted Patent US 11,891,518
Granted Patent B1
US 11,891,518 · App. 18/204,519 · Granted Feb 6, 2024

Hydrocarbon compositions derived from pyrolysis of post-consumer and/or post-industrial plastics and methods of making and use thereof

Inventors: Jeffrey W. Gold (Atlanta, GA); Connor Cudney (Atlanta, GA)
Assignee: Nexus Circular LLC
C08L91/06C10G1/002C10G1/10C10G2300/1003C10G2300/202C10G2300/205C10G2300/206C10G2300/301C10G2300/304
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Quick Facts
Patent No.
US 11,891,518
App. No.
18/204,519
Granted
Feb 6, 2024
Kind
B1
Abstract

Disclosed herein are hydrocarbon based compositions derived from pyrolysis of a feedstock comprising post-consumer and/or post-industrial plastics and methods of making and use thereof.

Claims (67)

1. A wax derived from pyrolysis of a feedstock comprising post-consumer and/or post-industrial plastics, wherein:

the wax is produced at an industrial scale;

the wax has a number average molecular weight and/or a weight average molecular weight of from 300 to 400 Daltons;

the wax comprises a mixture of different hydrocarbons, any of which can optionally be substituted, wherein from 60% to 80% of the mixture (w/w) comprises C 20 -C 45 hydrocarbons; and

the wax has:

a final boiling point of 950° F. to 1300° F.; and

a sodium content of 150 ppm or less.

2. The wax of claim 1 , wherein from 95 to 99% of the mixture (w/w) comprises C 9 -C 46 hydrocarbons.

3. The wax of claim 1 , wherein the mixture comprises:

20-30% C 9 -C 20 hydrocarbons,

20-30% C 20 -C 24 hydrocarbons,

20-30% C 24 -C 28 hydrocarbons, and

10-20% C 28 -C 32 hydrocarbons.

4. The wax of claim 1 , wherein the mixture is substantially free of C 1 -C 8 hydrocarbons.

5. The wax of claim 1 , wherein the mixture comprises:

80-100 wt. % unsaturated hydrocarbons;

0-5 wt. % unsaturated non-aromatic hydrocarbons; and

0-15 wt. % aromatics.

6. The wax of claim 1 , wherein the wax has a melting point of from 40° C. to 55° C.

7. The wax of claim 1 , wherein the wax has a pour point of from 30° F. to 60° F.

8. The wax of claim 1 , wherein the wax has a total chloride content of 50 ppm or less.

9. The wax of claim 1 , wherein the wax has a nitrogen content of 300 ppm or less.

10. The wax of claim 1 , wherein the wax has a silicon content of 125 ppm or less.

11. The wax of claim 1 , wherein the wax has a sodium content of 10 ppm or less.

12. The wax of claim 1 , wherein the wax has an iron content of 10 ppm or less.

13. The wax of claim 1 , wherein the wax has a phosphorus content of 50 ppm or less.

14. The wax of claim 1 , wherein the wax has a sulfur content of 500 ppm or less.

15. The wax of claim 1 , wherein the wax has a calcium content of 50 ppm or less.

16. The wax of claim 1 , wherein the wax has a copper content of 10 ppm or less, a nickel content of 100 ppm or less, a vanadium content of 25 ppm or less, or a combination thereof.

17. The wax of claim 1 , wherein the wax has:

a total chloride content of 50 ppm or less;

a nitrogen content of 300 ppm or less; and

a silicon content of 125 ppm or less.

18. The wax of claim 1 , wherein the wax has:

a total chloride content of 50 ppm or less;

a nitrogen content of 300 ppm or less;

a silicon content of 125 ppm or less;

a sodium content of 150 ppm or less;

an iron content of 10 ppm or less;

a phosphorus content of 50 ppm or less;

a sulfur content of 500 ppm or less; and

a calcium content of 50 ppm or less.

19. The wax of claim 1 , wherein the wax has:

a total chloride content of 25 ppm or less;

a nitrogen content of 300 ppm or less;

a silicon content of 100 ppm or less;

a sodium content of 10 ppm or less;

an iron content of 10 ppm or less;

a phosphorus content of 50 ppm or less;

a sulfur content of 10 ppm or less;

a calcium content of 5 ppm or less;

or a combination thereof.

20. The wax of claim 1 , wherein the wax has a Reid Vapor Pressure of 12.5 psig or less.

21. The wax of claim 1 , wherein the wax has:

a Reid Vapor Pressure of 12.5 psig or less; and

a pour point of 30° F. to 60° F.

22. The wax of claim 1 , wherein the wax has:

a Reid Vapor Pressure of 12.5 psig or less;

a pour point of 30° F. to 60° F.;

a total chloride content of 50 ppm or less;

a nitrogen content of 300 ppm or less;

a silicon content of 125 ppm or less;

an iron content of 10 ppm or less;

a phosphorus content of 50 ppm or less;

a sulfur content of 500 ppm or less; and

a calcium content of 50 ppm or less.

23. A method of making the wax of claim 1 , wherein the method comprises pyrolysis of a feedstock comprising post-consumer and/or post-industrial plastics.

Assignments (2)
CORRECTIVE ASSIGNMENT TO CORRECT THE THE FIRST INVENTORS NAME PREVIOUSLY RECORDED AT REEL: 065748 FRAME: 0205. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Dec 12, 2023
From: GOLD, JEFFREY W.; CUDNEY, CONNOR
To: NEXUS CIRCULAR LLC
Reel/Frame 065867/0135 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 5, 2023
From: GOLD, JEFFREY W.; CUDNEY, CONNOR
To: NEXUS CIRCULAR LLC
Reel/Frame 065759/0714 →
Continuity (1)
Provisional Application 63456197 · Mar 31, 2023
Cited By (5)
US 12,410,370 US 12,509,636 US 12,545,840 US 12,595,424 US 12,649,879