Catalytic cracking process
US4388178A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Dec 24, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J29/126
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved process for fluid catalytic cracking or hydrocarbons employing a Y zeolite in a silica-alumina matrix and containing from about 0.1 to about 5 weight percent fluorine. The catalyst is prepared by contacting a Y zeolite in a silica-alumina matrix with an aqueous solution of a fluorine compound, preferably an aqueous solution of hydrogen fluoride, for a period of 16 to 24 hours, followed by drying and calcining the resultant fluorided cracking catalyst. The process of cracking hydrocarbons with these catalysts produces improved yields of motor fuel fractions of improved octane number as compared with processes employing unfluorided cracking catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.