Foam control using a fluidized bed of particles
US5922191A · kind A · utility
10Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Jun 25, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for suppressing foam formation in a vessel includes the steps of feeding a liquid and a gas to a vessel at a liquid velocity and a gas velocity respectively; adding particles of a solid material to the liquid, the particles having a particle size and particle density; and selecting at least one of the liquid velocity, particle size and particle density so as to fluidize the particles in the liquid, whereby foam formation in the vessel is suppressed. The particles are preferably liquid phase phobic particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.