Angular flow distribution bottom head
US7270791B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2004 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Jun 16, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J8/1827
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved angled annular deflector for a gas-phase polymerization reactor and improved method for delivery of a stream of polymerizable fluid to a gas-phase polymerization reator. The angled annular deflector has an outer surface with a conical shape, an inner surface, and an inner cavity along a central axis, said cavity open at both ends, the inner surface having a first end and a second end, and the first end of the inner surface mated to the apex end of the outer surface: and an upper surface mated to the base end of the outer surface and to the second end of the inner surface; wherein the outer surface, the inner surface, and the upper surface form a substantially closed chamber. The angled annular deflector being adapted to associate with a cone-shaped bottom portion of a fluidized bed polymerization reactor vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.