Biochar suspended solution

Patent metadata

Field	Value
Publication number	US-10059634-B2
Application number	US-201615268383-A
Country	US
Kind code	B2
Filing date	Sep 16, 2016
Priority date	Jun 6, 2011
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

A method is provided for producing a biochar solution. The method comprises the steps of collecting biochar particles, dispersing the biochar particles in a liquid solution and adding a stabilizing agent to keep the biochar in flowable suspension. The stabilizing agent may be added to the liquid solution or to the biochar prior to placing the biochar in solution.

First claim

We claim:

1. A method for producing a biochar solution the method comprises the steps of (i) collecting biochar particles; (ii) dispersing the biochar particles in a liquid solution; and (iii) adding a stabilizing agent to the liquid solution to keep the biochar particles in flowable suspension.

2. The method of claim 1 where the step of collecting the biochar particles includes collecting biochar from a centrifuge effluent and passing the biochar to equipment for de-sizing.

3. The method of claim 1 where the step of collecting the biochar particles includes collecting biochar from biochar granular product and passing the biochar to equipment for de-sizing.

4. The method of claim 1 where the step of collecting the biochar particles includes collecting biochar from both centrifuge effluent and granulated product and passing the collected biochar to equipment for de-sizing.

5. The method of claim 2 where the de-sizing equipment is a media mill.

6. The method of claim 3 where the de-sizing equipment is a media mill.

7. The method of claim 1 where the step of collecting the biochar particles includes adding a flocculant to the biochar.

8. The method of claim 1 where the liquid solution includes water.

9. The method of claim 1 where the liquid solution includes both water and an additive.

10. The method of claim 9 where the additive is a fertilizer.

11. The method of claim 1 further including the step of removing larger biochar particles from the liquid solution by filtering the solution.

12. The method of claim 11 where the liquid solution is filtered using a mesh screen ranging from 0.2 mm-7.0 mm in size.

13. The method of claim 1 where the stabilizing agent is xanthan gum.

14. The method of claim 1 where the step of adding a stabilizing agent further includes adding a preservative.

15. The method of claim 1 where the biochar used in solution has been treated by infusing a liquid into the pores of the biochar particles.

16. The biochar solution of claim 1 where the step of adding the stabilizing agent to keep the biochar particles in flowable suspension is performed before dispersing the biochar particles in the liquid solution.

17. A biochar solution comprising biochar particles and a stabilizing agent in a liquid solution, wherein the stabilizing agent keeps the biochar particles in suspension in the liquid solution.

18. The biochar solution of claim 17 where the liquid solution is water.

19. The biochar solution of claim 17 where the liquid solution includes both water and an additive.

20. The biochar solution of claim 19 where the additive is a fertilizer.

21. The biochar solution of claim 17 where the stabilizing agent is xanthan gum.

22. The biochar solution of claim 17 where the biochar solution further includes a preservative.

23. The biochar solution of claim 17 where the biochar particles used in solution has been treated by infusing a liquid into the pores of the biochar particles.

24. The biochar solution of claim 17 where 90% of the biochar particles are 0.5 mm or less in size.

25. The biochar solution of claim 19 where the additive is a plant nutrient.

26. The biochar solution of claim 19 where the additive is a biological agent beneficial to plants.

27. The biochar solution of claim 19 where the additive is manure.

28. The biochar solution of claim 19 where the additive is a liquid solution of compost.

Assignees

• Cool Planet Energy Systems Inc

Inventors

• Jarand Mark L
• Daugaard Daren Einar
• Thompson Timothy Alan
• Kim Han Suk
• Metier Michael William

Classifications

• C05G3/80

  Soil conditioners · CPC title

• C05G5/27

  Dispersions, e.g. suspensions or emulsions · CPC title

• C05F11/00 Primary

  Other organic fertilisers · CPC title

• C05G3/20

  for preventing the fertilisers being reduced to powder; Anti-dusting additives · CPC title

• C10B57/02

  Multi-step carbonising or coking processes · CPC title