Thermal cracking process for selectively producing petrochemical

Details Thermal cracking process for selectively producing petrochemical Thermal cracking process for selectively producing petrochemical

1984-06-28

1986-05-06

Doll, John

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208107, 208130, 585648, 585652, C10G 938

Patent

active

045870110

ABSTRACT:
A thermal cracking process for selectively producing petrochemical products from hydrocarbons which comprises the steps of: burning hydrocarbons with oxygen in the presence of steam to produce a hot gas of from 1300.degree. to 3000.degree. C. comprising steam; feeding hydrogen to the hot gas; further feeding starting hydrocarbons to the hot gas comprising the steam and hydrogen so that the starting hydrocarbons containing hydrocarbon components of higher boiling points are, respectively, fed to higher temperature zones so as to thermally crack the respective hydrocarbons under different conditions while keeping the cracking temperature at 650.degree. to 1500.degree. C., the total residence time at 5 to 1000 milliseconds, the pressure at 2 to 100 bars, and the partial pressure of hydrogen, after thermal cracking of a hydrocarbon comprising hydrocarbon components whose boiling point exceeds 200.degree. C., at least 0.1 bar; and quenching the resulting reaction product.

REFERENCES:
patent: 4136015 (1979-01-01), Kamm et al.
patent: 4256565 (1981-03-01), Friedman et al.
patent: 4264435 (1981-04-01), Read, Jr. et al.
patent: 4321131 (1982-03-01), Lowe

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