Control of foam generation in gas-liquid separation towers
US3979192A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1974 |
| Grant date | Sep 7, 1976 |
| Priority date | — |
| Expiry date | Nov 20, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2984
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An antifoam composition is introduced as an aerosol into the main gas stream entering a gas-liquid separation tower. The main gas stream carries the small aerosol particles up the tower through the sieve-like separation trays and the water moving over the plurality of trays. The movement of the antifoam carried in the gas stream to the top of the tower is many times more rapid than the transit of liquid down the tower in countercurrent movement thereto. For antifoam particle sizes in the preferred range, movement of the antifoam continues unabated through a long series of trays in the tower to effectively inhibit foam formation therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.