Distribution system for downflow reactors
US4836989A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1987 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Jul 2, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S203/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A distributor system for use in multiple bed, downflow reactors which provides improved distribution across the reactor and improved vapor/liquid contact and distribution. The system comprises a collection tray arranged below the first catalyst bed in the reactor, a first, rough distributor tray which is arranged below the collection tray and which is fed from the collection tray by means of spillways in the tray and a mixing chamber beneath the spillways. The first distributor tray provides for separate vapor and liquid flow by means of apertures in the tray or downward flow of liquid and vapor chimneys for downward flow of vapor. After the first distributor tray, a second, final distributor tray is provided with downcomers for flow of liquid and vapor onto the lower catalyst bed. Each downcomer comprises an open-topped tube with a side aperture for entry of liquid into the tube, vapor entering through the open top of the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.