Production of propylene and ethylene from butane and ethane
US7964762B2 · kind B2 · utility
2Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2007 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Dec 1, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the producing propylene and ethylene from a light hydrocarbon stream comprising essentially ethane and butane. The process involves a non-catalytic cracking of ethane and normal-butane followed by a metathesis of ethylene and 2-butene to increase the propylene yield. Optionally the by-produced iso-butane is dehydrogenated and subsequently the produced iso-butene is converted to other valuable products like di-isobutylene, alkylate for gasoline blending tertiary-butyl-ethers, poly-isobutylene methyl-metacrylate or isoprene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.