Catalyst regeneration
US5171540A · kind A · utility
3Cited by
16References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Feb 25, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/19
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Catalytic regenerators, nozzle designs and processes suitable for introducing regeneration air into a catalytic cracking unit which substantially reduce erosion induced nozzle failures include a plurality of nozzle elements having a roughness defined upon the outside surface of said nozzle elements so as to reduce erosion due to the impact of fluidized catalyst particles within the catalytic regenerator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.