Method for enhancing distillate liquid yield from an ethylene cr

Details Method for enhancing distillate liquid yield from an ethylene cr Method for enhancing distillate liquid yield from an ethylene cr

1976-07-12

1978-06-27

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural parallel stages of chemical conversion

208 48Q, 208 57, 208113, 208127, 208216, 260683R, C10G 3702, C10G 932, C07C 1104

Patent

active

040973620

ABSTRACT:
In a thermal cracking process employing inert hot solids as a heat source, the cracker effluent solids are passed to a burner for combustion of deposited and entrained coke. The liquid product of the thermal cracking process is distilled and the liquid residue comprises a low value solids-containing slurry which is used as a torch oil in the coke burner. The liquid residue from a catalytic cracking process also comprises a low value slurry since it contains particles of cracking catalyst and in the present process is used as auxiliary torch oil in the solids burner. The catalyst particles are rendered inert at the high temperature of the burner, thereby enhancing the quantity of inert solids circulating in the thermal cracking process. The use of a second slurry as torch oil reduces the quantity of thermally cracked liquid residue required as torch oil and enhances the quantity of more valuable solids-free distillate liquid recoverable from the thermal cracking process.

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patent: 3928173 (1975-12-01), James
patent: 3984305 (1976-10-01), Hosoi et al.

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