Process and apparatus for irradiating fluids
US7354556B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 2003 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Apr 24, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0877
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Fluids in a vessel are subjected to a high ultrasonic intensity, by means of several ultrasonic transducers attached to a wall of the vessel, each transducer (14) radiating no more than 3 W/cm2, the transducers being sufficiently close to each other, and the number of transducers being sufficiently high, that the power dissipation within the vessel is at least 25 W/liter. The number of transducers, the power of the transducers, and the volume of the vessel may be such that the power density is between 40 and 80 W/liter. The vessel may be double walled, and the space between the two walls be filled by a low attenuation buffer liquid (36) whose cavitation threshold is above that of the liquid being treated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.