Downcomer-tray assembly and method
US4956127A · kind A · utility
54Cited by
17References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1989 |
| Grant date | Sep 11, 1990 |
| Priority date | — |
| Expiry date | Mar 8, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D3/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A downcomer tray assembly for vapor liquid contact towers. The region of the tray beneath an upper downcomer is constructed with a raised, perforated region for improving mass transfer efficiency. The raised region reduces fluid pressure to facilitate ascending vapor therethrough. A series of louvers selectively directs the upward vapor flow into the liquid region below the downcomer to generate a more efficient vapor-liquid contact and reduced back-mixing across the tray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.