Propylene production
US8119849B2 · kind B2 · utility
0Cited by
19References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | May 4, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C6/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A propylene production process is disclosed. The process comprises (a) reacting a feed stream comprising isobutene in the presence of a skeletal isomerization catalyst to obtain an isomerized stream comprising C4 olefins; and (b) reacting the isomerized stream with ethylene in the presence of a metathesis catalyst to form a metathesis product stream comprising propylene, C4 olefins, and C5+ olefins. The metathesis reaction pressure is equal to or lower than that of the skeletal isomerization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.