Feed injector with internal connections
US6503461B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1999 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Dec 22, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0218
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An injector of a type routinely used in an FCC unit for dispersing a feed into a fluidized stream of catalyst particles is given additional versatility and maintainability through the use of internal connections of a low profile type. The injector apparatus has at least one connection that is positioned inside a retaining sleeve and connects the discharge tip of the injector to the piping that extends outside the sleeve and delivers the feed to the injector. The connection can join materials that are not amenable to welding in a space that is too confined for a flange connection. The connection combines the ductile properties of the carbon steel or stainless steel for the feed piping with an abrasion resistant but brittle material that will extend the life of the nozzle tip. Such relatively brittle materials include ceramics. The injector will also routinely incorporate an internal sleeve for separating two different fluids that enter the injector independently and undergo mixing therein. An additional internal connection may be added to the internal tube to facilitate the addition of mixing devices at the end of the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.