Thermal cracking process for producing olefins and synthetic...

Details Thermal cracking process for producing olefins and synthetic... Thermal cracking process for producing olefins and synthetic...

C - Chemistry, Metallurgy

01

B

48/25, 260/708.7

C01B 3/24 (2006.01) C01B 3/36 (2006.01) C07C 4/04 (2006.01) C07C 11/02 (2006.01) C10G 9/38 (2006.01)

Patent

CA 1212968

SPECIFICATION TITLE OF THE INVENTION: THERMAL CRACKING PROCESS FOR PRODUCING OLEFINS AND SYNTHETIC GAS FROM HYDROCARBONS ABSTRACT OF THE DISCLOSURE: A thermal cracking process for producing olefins and a synthetic gas from hydrocarbons is described. The process comprises the steps of burning a hydrocarbon with less than the theoretical amount of oxygen in the presence of steam to give a hot gas of from 1200 to 2500°C containing steam and a synthetic gas prior to reaction, feeding methane to the hot gas containing the steam and the synthetic gas such that a molar ratio of methane to hydrogen is over 0.05, inclusive, further feeding a starting hydrocarbon to the hot gas containing the methane, synthetic gas and steam, keeping the mixture under conditions, at the outlet of a reactor of a partial pressure of hydrogen not less than 0.1 bar, a temperature ranging from 800 to 1200°C, and a residence time ranging from 5 to 300 milliseconds thereby thermally cracking the starting hydrocarbon, and quenching the resulting product.

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