Controlling temperature in catalyst regenerators
US7452838B2 · kind B2 · utility
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16References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2005 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Apr 28, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention relates to efficiently regenerating catalyst particles by minimizing the formation of localized “hot spots” and “cold spots” in a regeneration zone. In one embodiment, the invention includes mixing spent catalyst from a reactor and cold catalyst from a catalyst cooler in a mixing zone and directing the mixed catalyst to the regeneration zone in a fluidized manner with a fluidizing medium. In the regeneration zone, the mixed catalyst contacts an oxygen-containing regeneration medium under conditions effective to regenerate the spent catalyst contained therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.