Process for thermal cracking of residual oils

Details Process for thermal cracking of residual oils Process for thermal cracking of residual oils

1984-09-26

1987-06-16

Metz, Andrew H.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208106, 208107, 208128, 208130, 208132, C10C 308, C10G 5504

Patent

active

046734864

ABSTRACT:
An extraction residue obtained by solvent deasphalting of a residual oil is mixed with a carrier gas and thermally cracked at a temperature of 400.degree. C. to 600.degree. C. in a tube-type cracking apparatus to obtain cracked oil and pitch. The use of the carrier gas, which may be either an inert gas such as nitrogen or a reactive gas such as hydrogen, permits a flow velocity through the cracking apparatus sufficient to substantially prevent coking. Preferably, the cracking conditions are controlled so that the yield of cracked oil is not more than about 30 to 35%.

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