Method and system for regenerating fluidizable catalyst particles
US4035284A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1973 |
| Grant date | Jul 12, 1977 |
| Priority date | — |
| Expiry date | Jul 18, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/182
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A hydrocarbon conversion-catalyst regeneration operation is described which relies upon a dense fluid catalyst bed superimposed by a dispersed catalyst phase operation to effect elevated temperature regeneration of the catalyst providing low CO levels less than 0.15 mol percent in the flue gas by mixing regenerated catalyst with spent catalyst to obtain an initial mix temperature of at least 1175.degree. F. before contact with oxygen containing regeneration gas. The ratio of regenerated to spent catalyst is restricted to within the range of 0.5 to 1.5 and the oxygen content through the dense and dispersed catalyst phase is selected to provide a discharged dispersed catalyst phase temperature of at least 1350.degree. F.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.