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US 4,051,014 AGranted
Process for treating sulfur-containing hydrocarbon feedstocks to produce high yield coke
AssigneeAtlantic Richfield Company
InventorGeorge P. Masologites
Life of this patent
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Abstract
A process for producing coke from sulfur-containing hydrocarbon feedstocks which involves contacting at least a portion of the feedstock with a peroxy oxidant in the presence of a metal-containing catalyst to preferentially oxidize a portion of the hydrocarbon feedstock, subjecting the feedstock to coking conditions to form coke and recovering a coke product. The present process can provide improved yields of coke having substantially reduced sulfur content.
Claims11
A process for producing coke which comprises:
- 1. contacting a sulfur containing hydrocarbon feedstock containing at least 1% by weight Conradson Carbon Residue with at least one peroxy oxidant in the presence of a catalyst comprising a metal in an amount effective to promote the oxidation of sulfur to preferentially oxidize at least a portion of the sulfur contained in said hydrocarbon feedstock, said metal being selected from the group consisting of Group IVB, Group V, Group VI and mixtures thereof;
- 2. subjecting said oxidized sulfur-containing hydrocarbon feedstock to coking conditions at temperatures in the range from about 800.degree. F. to about 1100.degree. F. to produce a coke product from said coking having a sulfur content reduced by at least 40% by weight relative to the sulfur content of a coke product produced by subjecting the feedstock to the coking conditions of step 2 without the oxidation of step 1.
Dependencies are inferred from the claim text.