Biochar extracts and method for capturing material extracted from biochar

Patent metadata

Field	Value
Publication number	US-10065163-B2
Application number	US-201715588137-A
Country	US
Kind code	B2
Filing date	May 5, 2017
Priority date	Oct 1, 2014
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

A method for capturing material extracted from biochar, the method comprising the steps of: (i) providing a biochar; (ii) contacting the biochar with a treating liquid, where the treating liquid causes the removal of solids from the pores and surface of the biochar, thereby creating a resulting solution comprised of the treating liquid and removed solids; and (iii) collecting the resulting solution.

First claim

We claim:

1. A method for capturing material extracted from biochar, the method comprising the steps of:
providing a biochar that includes residual organic compounds;
contacting the biochar with a treating liquid, wherein the treating liquid removes at least some of the residual organic compounds from the biochar, thereby creating a biochar extract containing residual organic compounds;
separating the biochar from the biochar extract; and
collecting the biochar extract from which the biochar has been separated for further use and/or processing separate from, or prior to, disposal.

2. The method of claim 1 wherein the treating liquid is water.

3. The method of claim 1 wherein the residual organic compounds comprise volatile organic compounds.

4. The method of claim 1 wherein contacting the biochar with a treating liquid comprises:
introducing the biochar to a chamber;
adding the treating liquid to the chamber; and
changing the pressure in the chamber.

5. The method of claim 4 where the treating liquid is added to the chamber before the pressure in the chamber is changed.

6. The method of claim 4 where the treating liquid is added to the chamber while the pressure in the chamber is changed.

7. The method of claim 6 where the pressure is changed in the chamber by either pulling a vacuum on the chamber or applying positive pressure on the content of the chamber.

8. The biochar extract produced by the method of claim 1 from which the biochar has been separated.

9. A method for capturing material extracted from biochar, the method comprising the steps of:
providing a biochar;
introducing the biochar to a chamber;
adding a treating liquid to the chamber; and
changing the pressure in the chamber, wherein changing the pressure in the chamber causes the treating liquid to remove solids from the pores and surface of the biochar, thereby creating a resulting solution comprised of the treating liquid and removed solids;
separating the biochar from the resulting solution; and
collecting the solution from which the biochar has been separated for further use and/or processing separate from, or prior to, disposal.

10. The method of claim 9 wherein the treating liquid includes a targeted solvent capable of removing a compound from the pores and surface of the biochar.

11. The method of claim 9 wherein the removed solids are at least partially dissolved in the resulting solution.

12. The method of claim 9 where the pressure is changed in the chamber by either pulling a vacuum on the chamber or applying positive pressure on the content of the chamber.

13. The method of claim 9 where the solids removed from the pores and surface of the biochar are biochar fines.

14. The method of claim 9 where the solids removed from the pores and surface of the biochar are residual organic compounds.

15. The method of claim 9 where the solids removed from the pores and surface of the biochar are dioxins.

16. The solution produced by the method of claim 9 from which the biochar has been separated.

17. A method for capturing material extracted from biochar, the method comprising the steps of:
providing a biochar;
contacting the biochar with a treating liquid, where the treating liquid causes the removal of solids from the pores and surface of the biochar, thereby creating a resulting solution comprised of the treating liquid and removed solids;
separating the biochar from the solution from which the biochar has been separated; and
collecting the resulting solution for further use and/or processing separate from, or prior to, disposal.

18. The method of claim 17 wherein the treating liquid includes a targeted solvent capable of removing a compound from the pores and surface of the biochar.

19. The method of claim 17 wherein the removed solids are at least partially dissolved in the resulting solution.

20. The method of claim 17 where the solids removed from the pores and surface of the biochar are biochar fines.

21. The method of claim 17 where the solids removed from the pores and surface of the biochar are residual organic compounds.

22. The method of claim 17 where the solids removed from the pores and surface of the biochar are dioxins.

23. The solution produced by the method of claim 17 from which the biochar has been separated.

24. A method for capturing material extracted from biochar, the method comprising the steps of:
providing a biochar;
introducing the biochar to a chamber at atmospheric pressure;
adding a treating liquid to the chamber to contact the biochar with the treating liquid;
pulling a vacuum on the chamber for a predetermined period of time and then returning the pressure in the chamber to atmospheric pressure, where the treating liquid causes the removal of solids from the pores and surface of the biochar, thereby creating a resulting solution comprised of the treating liquid and removed solids;
separating the biochar from the resulting solution; and
collecting the solution from which the biochar has been separated for further use and/or processing separate from, or prior to, disposal.

25. The method of claim 24 wherein the treating liquid includes a targeted solvent capable of removing a compound from the pores and surface of the biochar.

26. The method of claim 24 wherein the removed solids are at least partially dissolved in the resulting solution.

27. The method of claim 24 where the solids removed from the pores and surface of the biochar are biochar fines.

28. The method of claim 24 where the solids removed from the pores and surface of the biochar are residual organic compounds.

29. The method of claim 24 where the solids removed from the pores and surface of the biochar are dioxins.

30. The solution produced by the method of claim 24 from which the biochar has been separated.

Assignees

• Cool Planet Energy Systems Inc
• Cool Planet Energy Systems Inc

Inventors

• Malyala Rajashekharam
• Traxler Vern
• Smith Matthew William
• Kim Han Suk
• Bontchev Ranko Panayotov
• Belcher Richard Wilson

Classifications

• C05G3/80

  Soil conditioners · CPC title

• C05G5/12

  Granules or flakes · CPC title

• A23K10/30 Primary

  from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms (obtained by microbiological or biochemical processes, e.g. using yeasts or enzymes, A23K10/10) · CPC title

• A61L2/04

  Heat (radiation A61L2/08) · CPC title

• A61L2/081

  Gamma radiation · CPC title