Octane enhancement and total liquid product yield improvements in catalytic cracking using in-situ crystallized ZSM-5 clay aggregates
US4522705A · kind A · utility
27Cited by
4References
13Claims
0Family size
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Key dates
| Filing date | Jun 13, 1984 |
| Grant date | Jun 11, 1985 |
| Priority date | — |
| Expiry date | Jun 13, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Octane and total yield improvement in catalytic cracking of petroleum fractions under cracking conditions can be obtained by adding to conventional cracking catalysts small amounts of an additive catalyst comprising a class of zeolites characterized by a silica to alumina mole ratio greater than 5 and a Constraint Index of 1 to 12 wherein the zeolite additive catalyst is prepared via in-situ crystallization of preformed aggregates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.