Steam cracking of hydrocarbons

Details Steam cracking of hydrocarbons Steam cracking of hydrocarbons

C - Chemistry, Metallurgy

07

C

C07C 11/02 (2006.01) C07C 4/04 (2006.01) C10G 9/16 (2006.01) C10G 55/04 (2006.01)

Patent

CA 2203423

Sulphur-containing hydrocarbon feedstocks are desulphurised prior to being subjected to steam cracking in the presence of one or more thiohydrocarbons wherein the sulphur is part of aromatic heterocycles, preferably thiophene and/or benzothiophene. Optimum results are obtained in terms of the combination of reduced coking rate and reduced carbon monoxide formation.

On désulfure des charges d'hydrocarbures contenant du soufre avant de les soumettre à un vapocraquage en présence d'un ou de plusieurs thiohydrocarbures dans lesquels le soufre fait partie des hétérocycles aromatiques, de préférence le thiophène et/ou le benzothiophène. On obtient des résultats optimum lorsque l'on combine une vitesse réduite de cokéfaction et une formation réduite de monoxyde de carbone.

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