Method for catalytic cracking heavy oils
US4218306A · kind A · utility
17Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1979 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Jan 15, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A riser cracking operation is described for the production of gasoline and distillate material by the combination of cracking fresh gas oil charged to the base of a riser cracking zone for admixture with freshly regenerated catalyst to form a suspension thereof at an elevated cracking temperature, a second hydrocarbon fraction of more difficult cracking characteristics is charged to the suspension rising in the riser cracking zone at a point selected from 10 to about 30 feet above the riser bottom and the riser inlet temperature is restricted to be within the range of 900.degree. to 1000.degree. F.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.