Catalyst return apparatus, and process for reacting a feedstock
US8747767B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2009 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | May 26, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst return apparatus is disclosed as well as a riser reactor system comprising the conduit apparatus and a riser reactor, the conduit apparatus comprising a catalyst return conduit and at least two flow control devices in series, each flow control device arranged to control the flow of fluid through the conduit, wherein the length of the catalyst return conduit is more than 20 m. A process for reacting a feedstock in a riser reactor system comprising a riser reactor, the catalyst return apparatus and, and a stage vessel, the process comprising: holding a fluid comprising the catalyst in the at least one stage vessel for a residence time of at least 10 seconds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.