Continuous process for the oxidative coupling of methane to C.sub.2+ hydrocarbons in the presence of catalysts

US4939312A · kind A · utility

Assignee

• Manfred Baerns · DE

Inventors

• Manfred Baerns · Berlin, DE
• Joao A. da Silva Palla Carreiro · Dortmund, DE
• Wilfried Bytyn · Bochum, DE

Key dates

• Filing date: Sep 23, 1986
• Grant date: Jul 3, 1990
• Expiry date: Sep 23, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2527/232
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A continuous process for the catalytic oxidative coupling in the presence of oxygen or an oxygen containing gas to C.sub.n H.sub.m hydrocarbons (n.gtoreq.2, m=2n or 2n+2) at temperatures between 500.degree. and 900.degree. C., with partial pressures of methane above 0.5 bar and a ratio of the partial pressures of methane and oxygen between 1 and 20 is described. This process uses oxides, peroxides, hyperoxides, hydroxides, carbonates, sulfates, phosphates and silicates of the elements belonging to the 1., 2. and 4. main group of the periodic system as catalysts with and without a support material.