FCC spent catalyst distributor
US6809054B1 · kind B1 · utility
11Cited by
27References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2000 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Nov 17, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J38/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An distributor arrangement introduces spent FCC catalyst more uniformly across the dense bed of the regenerator to provide more even contact with regeneration gas in order to avoid hot spots and zones of incomplete combustion. The invention forms a fluidized hopper to collect spent catalyst and a horizontally extended header with multiple horizontally extended outlet arms to place catalyst into the regenerator. The invention may use an aeration means to fluidize the header to further assist catalyst flow. Furthermore, the spent catalyst delivered to the top of the regenerator dense reduces NOx emissions in the flue gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.