The limits of flammability of ethylene in oxygen, air and air-nitrogen mixtures at elevated temperatures and pressures

✍ Scribed by A.D. Craven; M.G. Foster

• Publisher: Elsevier Science
• Year: 1966
• Tongue: English
• Weight: 356 KB
• Volume: 10
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(66)90054-x

✦ Synopsis

The limits o/]lammability o/ ethylene in oxygen, air and air-nitrogen mixtures were me~sured at elevated temperatures and pressures in a three litre spherical bomb. The limits in oxygen were determined at 80°C, 120"C and 150°C and over the range 135 to 515 lb /in"-abs. pressure.

The limits in air and air-nitrogen mixture: were determined at atmospheric pressure, 45 and 135 lb/in" ~*bs. at 20°C and 250°C, The upper limit in oxygen was raised by increasing either temperature or pressure, but the effect o[ pressure was small above 300 lb / in"-abs. The upper limit in air o~,,; also raised by increasing either temperature or pressure and the critical oxygen concentration was reduced **nder the same conditions. Explosions in ethylene-oxygen mixtures cl:~se to the upper limit o[ flammability at high pressures gaw, abnormally high explosion pressures. This effect was attributed to the releases o[ energy associated with the decomposition of ethylene and the [ormation o/signi]icant qvantities o] methane.