METHOD FOR CONDUCTING SONOCHEMICAL REACTIONS AND PROCESSES

• US 20150367313A1
• Filed: 06/03/2015
• Published: 12/24/2015
• Est. Priority Date: 06/18/2014
• Status: Active Grant

• Current Assignee: Arisdyne Systems Incorporated
• Original Assignee: Arisdyne Systems Incorporated
• Inventors: Kozyuk, Oleg
• Granted Patent: US 9,682,355 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B01F 2101/2204 Mixing chemical components in generals in order to improve chemical treatment or reactions, independently from the specific application
• CPC Class Codes: B01F 25/25 Mixing by jets impinging against collision plates
• CPC Class Codes: B01F 25/4521 the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube
• CPC Class Codes: B01F 25/45211 the elements being cylinders or cones which obstruct the whole diameter of the tube, the flow changing from axial in radial and again in axial
• CPC Class Codes: B01F 31/81 by vibrations generated inside a mixing device not coming from an external drive, e.g. by the flow of material causing a knife to vibrate or by vibrating nozzles
• CPC Class Codes: B01J 19/006 Baffles
• CPC Class Codes: B01J 19/008 Processes for carrying out reactions under cavitation conditions
• CPC Class Codes: B01J 19/2415 Tubular reactors
• CPC Class Codes: B01J 2219/00768 vertical
• CPC Class Codes: B01J 8/20 with liquid as a fluidising medium
• CPC Class Codes: B01J 8/22 gas being introduced into the liquid

Abstract

Described herein are method for conducting sonochemical reactions and processes in a liquid. The liquid is passed through a device that generates a liquid jet containing cavitation bubbles and collides the liquid jet with an impact body or other liquid jet to force the collapse of the cavitation bubbles at a select compressive stagnation pressure. The compressive stagnation pressure of the liquid is between 50 and 99 percent of the static pressure of the liquid upon entry of a constriction that generates the liquid jet containing cavitation bubbles.

Claims

1. A method of conducting sonochemical reactions or processes in a liquid comprising the steps of:

a. passing a liquid at static pressure P through a constriction of a device to form a liquid jet containing cavitation bubbles; and

b. subjecting the cavitation bubbles in the liquid jet to a compressive stagnation pressure, P_st, wherein P_st is P_st=(0.5−

0.99)P, by colliding the cavitation bubbles with a target within less than 1 millisecond of the liquid exiting the constriction.

2. The method of claim 1, the cavitation bubbles colliding with the target within less than 0.5 millisecond of the liquid exiting the constriction.

3. The method of claim 1, the constriction being perpendicular to the inlet flow of the liquid into the device.

4. The method of claim 1, the constriction being parallel to the inlet flow of the liquid into the device.

5. The method of claim 1, the target being an impact body.

6. The method of claim 5, the impact body being positioned in the device downstream of the constriction such that the impact body is between 4 to 200 mm from the outlet of the constriction.

7. The method of claim 5, the impact body having an impact surface for the colliding cavitation bubbles, the impact surface being perpendicular to the inlet flow of the liquid into the device.

8. The method of claim 1, the target being a second liquid jet.

9. The method of claim 8, the second liquid jet containing cavitation bubbles.

10. The method of claim 9, the second liquid jet being formed by passing a portion of the liquid through a second constriction in the device.

11. The method of claim 9, the second constriction being perpendicular to the inlet flow of the liquid into the device.

12. The method of claim 1, the liquid being an aqueous liquid, organic liquid or a mixture thereof.

13. The method of claim 1, the liquid jet containing cavitation bubbles comprising at least one solid, semisolid, particulate or a mixture thereof.

14. The method of claim 1, the liquid comprising at least one gaseous component.

15. The method of claim 1, the constriction comprising at least one orifice, nozzle or aperture.

16. The method of claim 1, the method being carried out in one pass through the constriction of the device.

17. The method of claim 1, the method being carried out in two or more passes through the constriction of the device.

18. The method of claim 1, the static pressure P being greater than 250 psi.

19. The method of claim 1, the static pressure P being greater than 500 psi.

20. The method of claim 1, P_st being greater than 0.55*P and less than 0.85*P.