Polymerization quench method and system
US7771667B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2008 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Mar 25, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2109
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A transfer method and system (8) to discharge overflow slurry from a polymerization reactor (10) to a tank (14). The method includes thermally isolating a conduit extension (28) at a distal end of a transfer line (20) from a quench fluid inlet (42) to a quench chamber (12). The transfer system (8) is characterized by an annular thermal barrier around the conduit extension (28) that can include insulation (34) and/or thermally resistant support ring (36), and a trap-free conduit (20) in fluid communication between the reactor (10) and the conduit extension (28). The transfer method and system can reduce or eliminate incidents of transfer line (20) plugging in the manufacture of isoolefin polymers and copolymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.