Production of olefins
US6388161B1 · kind B1 · utility
13Cited by
0References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2000 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Jul 23, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for cracking an olefin-rich hydrocarbon feedstock which is selective towards propylene in the effluent, the process comprising contacting a hydrocarbon feedstock containing one or more olefinic components of C4 or greater with a crystalline silicate catalyst to produce an effluent having a second composition of one or more olefinic components of C3 or greater, the feedstock and the effluent having substantially the same olefin content by weight therein characterized in that ethylene is added to the feedstock before the feedstock contacts the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.