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Chemical Engineering Journal, Volume 238, 15 February 2014, Pages 9-16.
V.S. Arutyunov, R.N. Magomedov, A.Yu. Proshina, L.N. Strekova4.
Semenov Institute of Chemical Physics, Russ. Acad. Sci., Kosygina 4, Moscow 119991, Russia
Abstract
Abundant resources and low prices make natural gas very attractive as petrochemical feedstock and
increase the interest to its oxidative conversion to basic petrochemicals. The paper presents results of gas-phase oxidative conversion of light C2–C5 alkanes diluted by nitrogen, helium or methane ([СnН2n+2]0 ⩽ 5%) at low oxygen [О2]0/[СnН2n+2]0 = 0.2–1, atmospheric pressure and temperatures 500–750 °C. Even significantly diluted, light alkanes display a chain-branching behavior at oxidation with a sharp transition trough a self-ignition limit. Oxygen significantly increases conversion and decreases reaction time, especially at intermediate temperatures below that of thermal cracking. The nature of diluting gas significantly influences on the process.
