Thermal cracking method for producing olefins from hydrocarbons

Details Thermal cracking method for producing olefins from hydrocarbons Thermal cracking method for producing olefins from hydrocarbons

1983-03-09

1985-05-28

Gantz, Delbert E.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By c content reduction, e.g., cracking, etc.

585650, 208107, C07C 402

Patent

active

045202249

ABSTRACT:
A thermal cracking method for producing olefins from hydrocarbons which comprises the steps of mixing said hydrocarbons with a mixed gas of methane and hydrogen in a methane/hydrogen mol ratio of 0.2 or more; prior to reaction carrying out a thermal cracking reaction under conditions such that the total concentration of methane and hydrogen is at least 40 mol % or more at the outlet of a reactor, the partial pressure of said hydrogen is 3 bars or more, the temperature at the outlet of the reactor is from 800.degree. to 1200.degree. C., and the residence time in the reactor is from 5 to 300 milliseconds; and quenching the reaction product discharged through the outlet of the reactor.

REFERENCES:
patent: 2666734 (1954-01-01), Finalay
patent: 2678956 (1954-05-01), Hasche
patent: 2985698 (1961-05-01), Pechtold et al.
patent: 3268615 (1966-08-01), Keenan et al.
patent: 3842138 (1974-10-01), Chahvekilian et al.

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