Method and apparatus for controlling static charge in polyolefin reactors
US7799876B2 · kind B2 · utility
4Cited by
9References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2007 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Jan 4, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/901
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for controlling sheeting in a gas phase reactor that includes producing a polyolefin with at least one metallocene catalyst and at least one static control agent in at least one gas phase reactor, measuring entrainment static using a static probe, and adjusting the concentration of the static control agent in response to changes in the measured entrainment static is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.