Inhibition of coke formation during vaporization of heavy...

Details Inhibition of coke formation during vaporization of heavy... Inhibition of coke formation during vaporization of heavy...

C - Chemistry, Metallurgy

10

G

196/81

C10G 49/18 (2006.01) C10G 9/00 (2006.01) C10G 47/22 (2006.01)

Patent

CA 2003080

INHIBITION OF COKE FORMATION DURING VAPORIZATION OF HEAVY HYDROCARBONS ABSTRACT OF THE DISCLOSURE An improved process for vaporizing a crude petroleum feedstock, preferably one boiling in the vacuum gas oil range or higher, prior to thermal cracking to olefins (8), wherein such feedstock is preheated (2,3), in one or more stages, in the convection section of a tubular steam cracking furnace (1), characterized by hydrogen, preferably at a hydrogen/feed ratio of from about 0.01 to about 0.15 wt. %, so as to inhibit coke formation. L043370

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