Unified cooling for multiple polyolefin polymerization reactors
US9822193B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2017 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Feb 10, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system and method for startup of a polyolefin reactor temperature control system having a first reactor temperature control path, a second reactor temperature control path, and a shared temperature control path. In some embodiments, during startup the second reactor temperature control path is configured to allow the temperature of a second reactor to rise due to the heat of the exothermic polymerization reaction occurring within reactor until reaching a predetermined setpoint temperature. In other embodiments, during startup a first reactor temperature control path is configured to include a heat exchanger used as a cooler, and a second reactor temperature control path is configured to include a heat exchanger used as a heater, to raise the temperature of the second reactor until reaching a predetermined setpoint temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.