IP Library › Granted Patent US 9,920,262
Granted Patent B1
US 9,920,262 · App. 15/358,201 · Granted Mar 20, 2018

Methods of separation of pyrolysis oils

Inventors: Jonathan Lyle Wistrom (Maryville, MO); Earl Richard Beaver (Chesterfield, MO); Skyler Linn Wistrom (Maryville, MO); Alan M. Levine (Monroeville, PA); Richard J. Lee (Murrysville, PA)
Assignee: RJ LEE GROUP, INC.
C10G53/14C10G2400/30
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,920,262
App. No.
15/358,201
Granted
Mar 20, 2018
Kind
B1
Abstract

Methods for processing pyrolysis oil employs two or more of the following steps: A first separation creates (a) a lighter fraction and heavier fraction, (b) subjecting the lighter fraction to distillation and (c) subjecting the heavy fraction to removal of at least one of sulfur and nitrogen.

Claims (61)

1. A method of processing pyrolysis oil comprising

effecting a first separation of said pyrolysis oil into a lighter fraction and a heavier faction,

subjecting said lighter fraction to plate distillation, and

subjecting said heavy fraction to sulfur and nitrogen removal.

2. The method of claim 1 including,

employing thin film distillation in effecting first said separation.

3. The method of claim 1 including,

employing about 10 to 30 plates in said plate distillation.

4. The method of claim 3 including,

effecting said plate distillation in a column having a reflux control head.

5. The method of claim 4 including,

effecting said plate distillation in stages with a first said stage collecting a lower fraction at about 100 to 400 torr, and

a second said stage having a higher vacuum than said first stage.

6. The method of claim 4 including,

effecting said plate distillation with said reflux control head set at about a 2:1 to 10:1 ratio.

7. The method of claim 4 including,

effecting by said column distillation separation of at least one material selected from the group consisting of terpenes, mercaptans, cyclohexenes and an alkylated monocycle fraction.

8. The method of claim 1 including,

effecting said heavy fraction removal of sulfur and nitrogen by catalytic oxidation.

9. The method of claim 8 including,

effecting said removal of said sulfur and nitrogen employing a catalyst which is a mixture of aluminum and molybdenum.

10. The method of claim 8 including,

said catalyst being a mixture of aluminum oxide and molybdenum trioxide.

11. The method of claim 10 including,

the ratio of said molybdenum trioxide to said aluminum oxide being about 0.5:1 to 1:0.5 on a weight to weight basis.

12. The method of claim 1 including,

said lighter fraction after plate distillation being treated by catalytic oxidation.

13. The method of claim 12 including

said heavy fraction being usable as fuel oil.

14. The method of claim 1 including,

said oil with said lighter fraction being about 20 to 35 percent weight of said pyrolysis oil and said heavy fraction being about 65 to 80 weight percent of said pyrolysis oil.

15. The method of claim 12 including,

the source of said pyrolysis oil being scrap tires.

16. The method of claim 1 including,

said lighter fraction containing at least one material selected from the group consisting of terpenes, mercaptans, and cyclohexenes.

17. A method of processing pyrolysis oil comprising,

effecting a first separation of said pyrolysis oil into a lighter fraction and a heavy fraction, and,

subjecting said lighter fraction to plate distillation.

18. The method of claim 17 including,

employing thin film distillation in effecting said first separation.

19. The method of claim 17 including,

employing about 10 to 30 plates in said plate distillation.

20. The method of claim 17 including,

said heavy fraction being usable as a fuel oil.

21. The method of claim 17 including

employing said oil with the lighter said fraction consisting of about 20 to 35 weight percent of said oil and said heavy fraction being about 65 to 80 weight percent of said pyrolysis oil.

22. The method of claim 17 including,

the source of said pyrolysis oil being scrap tires.

23. The method of claim 17 including,

said lighter fraction containing at least one material selected from the group consisting of terpenes, mercaptans and cyclohexenes.

24. A method of processing pyrolysis oil comprising,

effecting a first separation of said pyrolysis oil into a lighter fraction and a heavy fraction, and

subjecting said heavy fraction to catalytic oxidation.

25. The method of claim 24 including,

employing thin film distillation in effecting said first separation.

26. The method of claim 25 including,

said heavy fraction being usable as a fuel oil.

27. The method of claim 25 including,

employing said oil with the lighter said fraction consisting of about 20 to 35 weight percent of said oil and said heavy fraction being about 65 to 80 weight percent of said pyrolysis oil.

28. The method of claim 25 including,

the source of said pyrolysis oil being scrap tires.

Assignments (3)
PATENT AND TRADEMARK SECURITY AGREEMENT Recorded Feb 28, 2019
From: RJ LEE GROUP, INC.
To: CADENCE BANK, N.A.
Reel/Frame 048477/0733 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2017
From: LEE, RICHARD J.; LEVINE, ALAN M.; WISTROM, JONATHAN LYLE; WISTROM, SKYLER LINN; BEAVER, EARL RICHARD
To: RJ LEE GROUP, INC.
Reel/Frame 041435/0428 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 2, 2017
From: LEE, RICHARD J.; LEVINE, ALAN M.
To: RJ LEE GROUP, INC.
Reel/Frame 041154/0537 →