Integrated process for producing olefins from methane-containing gas mixtures
US5430219A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 30, 1993 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Sep 30, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is an integrated process for producing olefins by starting from methane containing gas mixture, which process essentially comprises the following steps: PA1 converting methane into higher hydrocarbons by oxidative coupling carried out in the presence of air and/or oxygen; PA1 dehydrogenating, with the aid of a catalyst, said higher hydrocarbons, with an olefin-rich mixture being obtained; PA1 removing H.sub.2 O, CO.sub.2, CO and H.sub.2 from the resulting olefinic mixture; PA1 removing from said olefinic mixture any not converted methane, and recycling it upstream from the oxidating coupling; PA1 separating ethylene from the olefinic mixture; PA1 separating any not dehydrogenated ethane from the olefinic mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.