Method for cracking hydrocarbons

Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion

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208 89, 585251, 585315, 585650, C10G 936

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active

043092713

ABSTRACT:
Hydrocarbons are subjected to hydrogenation, pressure reduction and separation into liquid and gaseous fractions. The gaseous fractions are purified and desulfurized. Hydrogen-rich components of the gaseous fraction are returned to the hydrogenation stage. Hydrocarbon-rich components of the gaseous fraction and components of the liquid fraction are cracked and fractionated. Residue is partially oxidized with oxygen and steam. Gas produced by the partial oxidation is desulfurized and separated, and hydrogen is returned to the hydrogenation stage. A polymer free fraction of the residue is returned to the feed stock and to the hydrogenation stage, a heavy residue component of the initial liquid fraction is partially oxidized with the residue.

REFERENCES:
patent: 3781195 (1973-12-01), Davis et al.
patent: 4039429 (1977-08-01), Klinken et al.
patent: 4115246 (1978-09-01), Sweany
patent: 4115467 (1978-09-01), Fowler
patent: 4180453 (1979-12-01), Franck et al.
patent: 4188281 (1980-02-01), Wernicke et al.

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