Fluidized catalytic cracking process
US4552648A · kind A · utility
9Cited by
12References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1984 |
| Grant date | Nov 12, 1985 |
| Priority date | — |
| Expiry date | Feb 8, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for catalytically cracking a hydrocarbon feed in a reaction zone under catalytic cracking conditions in the absence of added hydrogen with a catalyst comprising a conventional cracking catalyst. The improvement comprises adding to the conventional cracking catalyst a thermally treated zeolite having a mole ratio of SiO.sub.2 :Al.sub.2 O.sub.3 of about 10:1 to 100:1 and a constraint index of about 1 to 12. Thermal treatment reduces the additive zeolite's alpha activity to about 1 to 10 prior to use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.