Method of detecting and correcting local defluidization and channeling in fluidized-bed reactors for polymerization
US6384157B1 · kind B1 · utility
8Cited by
2References
27Claims
0Family size
Assignee
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Key dates
| Filing date | May 16, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | May 16, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/901
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method is provided to monitor, detect and correct local defluidization and channeling in fluidized-bed reactors for polymerization of olefin and/or diolefin polymers. The detection is preferably conducted by (i) continuously and/or intermittently comparing a signal which is a function of the currently measured fluidization bulk density with a signal which is a function of the time-averaged baselines of fluidized bulk density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.