Methane conversion
US4620057A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1985 |
| Grant date | Oct 28, 1986 |
| Priority date | — |
| Expiry date | Jun 7, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S585/943
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for the oxidative conversion of a feed material comprising methane, such as natural gas, to higher hydrocarbons, particularly ethylene and ethane and desirably ethylene, in which feed is contacted with a solid contact material comprising cobalt; at least one metal selected from the group consisting of zirconium, zinc, niobium, indium, lead and bismuth, preferably, zirconium; phosphorous; at least one Group IA metal; and oxygen under oxidative conversion conditions sufficient to convert the methane to the higher hydrocarbons. Substantial improvement in the conversion of methane and selectivity to ethylene and ethane is obtained by adding chlorine to the contact material. The further addition of sulfur to the contact material also improves the conversion and selectivity and permits the method to be carried out in an essentially continuous manner in the presence of a free oxygen containing gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.