Engineered fuel feed stock

• US 10,329,501 B2
• Filed: 09/30/2016
• Issued: 06/25/2019
• Est. Priority Date: 06/26/2008
• Status: Active Grant

• Current Assignee: Repower IP LLC
• Original Assignee: Accordant Energy, LLC
• Inventors: Bai, Dingrong, Calabrese, Paula
• Primary Examiner(s): Weiss, Pamela H
• Application Number:
  US15/282,589
• Publication Number:
  US 20170114292A1
• Time in Patent Office: 998 Days
• CPC Class Codes: C01B 3/02 Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
• CPC Class Codes: C10J 2300/0903 Feed preparation
• CPC Class Codes: C10J 2300/0906 Physical processes, e.g. shredding, comminuting, chopping, sorting
• CPC Class Codes: C10J 2300/0909 Drying
• CPC Class Codes: C10J 2300/0916 Biomass
• CPC Class Codes: C10J 2300/092 Wood, cellulose
• CPC Class Codes: C10J 2300/0946 Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
• CPC Class Codes: C10J 3/463 in stationary fluidised beds
• CPC Class Codes: C10J 3/72 Other features
• CPC Class Codes: C10L 2200/0469 Renewables or materials of biological origin
• CPC Class Codes: C10L 2250/04 Additive or component is a polymer
• CPC Class Codes: C10L 2290/24 Mixing, stirring of fuel components
• CPC Class Codes: C10L 2290/28 Cutting, disintegrating, shredding or grinding
• CPC Class Codes: C10L 2290/30 Pressing, compressing or compacting
• CPC Class Codes: C10L 5/08 without the aid of extraneous binders briquetting peat C10F
• CPC Class Codes: C10L 5/36 Shape
• CPC Class Codes: C10L 5/363 Pellets or granulates
• CPC Class Codes: C10L 5/366 Powders
• CPC Class Codes: C10L 5/40 essentially based on materials of non-mineral origin
• CPC Class Codes: C10L 5/403 on paper and paper waste
• CPC Class Codes: C10L 5/406 : on plastic
• CPC Class Codes: C10L 5/445 : Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues
• CPC Class Codes: C10L 5/46 : on sewage, house, or town refuse C10L5/403, C10L5/406 take precedence
• CPC Class Codes: Y02E 20/18 : Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
• CPC Class Codes: Y02E 50/10 : Biofuels, e.g. bio-diesel
• CPC Class Codes: Y02E 50/30 : Fuel from waste, e.g. synthetic alcohol or diesel
• CPC Class Codes: Y02P 20/145 : the feedstock being materials of biological origin

Abstract

Disclosed are novel engineered fuel feed stocks, feed stocks produced by the described processes, and methods of making the fuel feed stocks. Components derived from processed MSW waste streams can be used to make such feed stocks which are substantially free of glass, metals, grit and noncombustibles. These feed stocks are useful for a variety of purposes including as gasification and combustion fuels.

Claims

1. An engineered fuel feed stock, comprising at least one component derived from a processed waste stream, the engineered fuel feed stock comprising:

a carbon content of between about 60 wt. % and about 70 wt. %;

a hydrogen content of between about 3 wt. % and about 10 wt. %;

a moisture content of less than about 30 wt. %;

an ash content of less than about 10 wt. %; and

wherein the engineered fuel feed stock contains substantially no glass, metals, grit, and noncombustibles.

2. The engineered fuel feed stock of claim 1, further comprising:

a sulfur content of less than about 2 wt. %.

3. The engineered fuel feed stock of claim 1, further comprising:

a chlorine content of less than about 1 wt. %.

4. The engineered fuel feed stock of claim 1, wherein the moisture content is between about 5 wt. % and about 30 wt. %.

5. The engineered fuel feed stock of claim 1, further comprising:

an HHV of between about 11,000 BTU/lb and about 15,000 BTU/lb.

6. The engineered fuel feed stock of claim 1, further comprising:

a volatile matter content of between about 40 wt. % and about 80 wt. %.

7. The engineered fuel feed stock of claim 1, further comprising:

a volatile matter content of between about 80 wt. % and about 95 wt. %.

8. The engineered fuel feed stock of claim 1, further comprising:

an H/C ratio of between about 0.07 (w/w) and about 0.16 (w/w).

9. The engineered fuel feed stock of claim 8, wherein the H/C ratio is between about 0.08 (w/w) and about 0.15 (w/w).

10. The engineered fuel feed stock of claim 9, wherein the H/C ratio is between about 0.11 to about 0.15.

11. The engineered fuel feed stock of claim 1, where in the hydrogen content is between about 6 wt. % and about 9 wt. %.

12. The engineered fuel feed stock of claim 1, further comprising:

an O/C ratio of between about 0.15 (w/w) to about 0.3 (w/w).

13. The engineered fuel feed stock of claim 1, wherein the processed waste stream is a processed MSW waste stream.

14. The engineered fuel feed stock of claim 13, wherein the processed MSW waste stream contains biodegradable and non-biodegradable waste.

15. The engineered fuel feed stock of claim 1, wherein the engineered fuel feed stock is in a densified form.

16. An engineered fuel feed stock, comprising at least one component derived from a processed MSW waste stream, the engineered fuel feed stock comprising:

an H/C ratio of between about 0.025 (w/w) and about 0.20 (w/w);

an O/C from about 0.15 (w/w) to about 0.3 (w/w);

a moisture content of less than about 30 wt. %;

an ash content of less than about 10 wt. %; and

wherein the MSW waste stream contains biodegradable and non-biodegradable waste and the engineered fuel feed stock contains substantially no glass, metals, grit, and noncombustible waste.

17. The engineered fuel feed stock of claim 16, further comprising:

a hydrogen content of between about 3 wt. % and about 10 wt. %.

18. The engineered fuel feed stock of claim 16, further comprising:

a carbon content of between about 30 wt. % and about 80 wt. %.

19. The engineered fuel feed stock of claim 16, further comprising:

an HHV of between about 11,000 BTU/lb and about 15,000 BTU/lb.

20. The engineered fuel feed stock of claim 16, wherein the engineered fuel feed stock is in a densified form.

21. An engineered fuel feed stock, comprising at least one component derived from a processed MSW waste stream, the engineered fuel feed stock comprising:

a carbon content of between about 60 wt. % and about 70 wt. %;

a hydrogen content of between about 3 wt. % and about 10 wt. %;

an H/C ratio of between about 0.07 (w/w) and about 0.16 (w/w);

an O/C ratio from about 0.15 (w/w) to about 0.3 (w/w);

a moisture content of less than about 30 wt. %;

an ash content of less than about 10 wt. %; and

wherein the MSW waste stream contains biodegradable and non-biodegradable waste and the engineered fuel feed stock contains substantially no glass, metals, grit, and noncombustible waste.

22. The engineered fuel feed stock of claim 21, further comprising:

an HHV of between about 11,000 BTU/lb and about 15,000 BTU/lb.

23. The engineered fuel feed stock of claim 21, wherein the engineered fuel feed stock is in a densified form.