Bulk catalyst withdrawal system and methods for the use thereof
US11298671B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 2018 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Jul 12, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00247
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for processing a chemical stream includes contacting a feed stream with a catalyst in a reactor portion of a reactor system causing a reaction which forms a product stream. The method includes separating the product stream from the catalyst, passing the catalyst to a catalyst processing portion of the reactor system, processing the catalyst in the catalyst processing portion, and passing a portion of the catalyst from the catalyst processing portion of the reactor system into a catalyst withdrawal system that includes a catalyst withdrawal vessel and a transfer line coupling the catalyst withdrawal vessel to the catalyst processing portion. Each of the catalyst withdrawal vessel and the transfer line include an outer metallic shell and an inner refractory lining. The method further includes cooling the catalyst in the catalyst withdrawal vessel from greater than or equal to 680° C. to less than or equal to 350° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.