Thermal cracking process for producing olefins from...

Details Thermal cracking process for producing olefins from... Thermal cracking process for producing olefins from...

C - Chemistry, Metallurgy

07

C

260/708.7

C07C 11/02 (2006.01) C10G 9/38 (2006.01) C10G 47/22 (2006.01)

Patent

CA 1215084

ABSTRACT OF THE DISCLOSURE A thermal cracking process for producing olefins from hydrocarbons which comprises the steps of burning hydro- carbon with less than the theoretical amount of oxygen in the presence of steam to give a hot gas of from 1400 to 3000°C comprising steam and hydrogen prior to reaction; feeding, to the hot gas comprising the steam and hydrogen, a mixture of methane and hydrogen so that the methane/hydrogen molar ratio in said hot gas is over 0.05; further feeding a starting hydrocarbon to the hot gas mixture comprising the methane, hydrogen and steam; subjecting the starting hydrocarbon to thermal cracking while keeping the partial pressure of hydrogen at least 0.1 bar at the outlet of a reactor, the temperature at 800 to 1200°C, and the residence time at 5 to 300 milliseconds; and quenching the resulting reaction product.

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