Multistage catalyst injection system for an olefin polymerization reactor
US10987647B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2019 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Sep 23, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2208/00938
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This disclosure relates to a method and an apparatus for the delivery of a multi-component olefin polymerization catalyst to a polymerization reactor. The apparatus includes: a first catalyst component delivery conduit; a second catalyst component delivery conduit which is disposed within the first catalyst component delivery conduit; a first catalyst component mixing conduit; a third catalyst component delivery conduit which is disposed within the first catalyst component mixing conduit; a second catalyst component mixing conduit comprising an upstream section and a downstream section, the downstream section terminating within the polymerization reactor; and a diluent delivery conduit; the first and second catalyst component delivery conduits each being open-ended and co-terminating at the first catalyst component mixing conduit; the first catalyst component mixing conduit and the third catalyst component delivery conduit each being open-ended and co-terminating at the upstream section of the second catalyst component mixing conduit; and the diluent delivery conduit terminating at the downstream section of the second catalyst component mixing conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.