Efficient oxidative coupling of methane processes and systems
US9790144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2016 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Nov 2, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present disclosure provides oxidative coupling of methane (OCM) systems for small scale and world scale production of olefins. An OCM system may comprise an OCM subsystem that generates a product stream comprising C2+ compounds and non-C2+ impurities from methane and an oxidizing agent. At least one separations subsystem downstream of, and fluidically coupled to, the OCM subsystem can be used to separate the non-C2+ impurities from the C2+ compounds. A methanation subsystem downstream and fluidically coupled to the OCM subsystem can be used to react H2 with CO and/or CO2 in the non-C2+ impurities to generate methane, which can be recycled to the OCM subsystem. The OCM system can be integrated in a non-OCM system, such as a natural gas liquids system or an existing ethylene cracker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.