FCC process with concentrators on cyclone inlets
US5290431A · kind A · utility
10Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 8, 1993 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Jan 8, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04C2009/004
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A multi-stage cyclone for fluidized catalytic cracking of heavy oils is disclosed. A low efficiency inertial separator concentrates solids, FCC catalyst and fines, by forcing gas and entrained solids to make from 1/2 to 3/4 turn. Gas, with most of the solids content removed, is charged directly into the inlet horn of a conventional high efficiency cyclone. The solids concentrator/cyclone device may be used in FCC regenerators or reactors to reduce particulate losses, reduce catalyst attrition, and reduce erosion of cyclones caused by high catalyst loadings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.