Formation of coke from heavy crude oils in the presence of calci

Details Formation of coke from heavy crude oils in the presence of calci Formation of coke from heavy crude oils in the presence of calci

1980-06-09

1985-06-04

Doll, John

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vb metal

208126, 208127, 423150, C01G 3100

Patent

active

045213828

ABSTRACT:
The sulphur emissive capability, on combustion, of coke which is formed during upgrading of sulphur-containing heavy crude oils, including oil sands bitumen, and residua, is decreased by the addition of calcium carbonate, preferably in the form of limestone, to the heavy crude oil prior to coking. The presence of the limestone leads to an increased yield of liquid distillates from the coking process under preferred coking conditions. Ash remaining after combustion of the coke may be leached to recover nickel and vanadium values therefrom.

REFERENCES:
patent: 514041 (1894-02-01), Schwahn
patent: 2953518 (1960-09-01), McKinley et al.
patent: 3300276 (1967-01-01), Bretschneider et al.
patent: 3707462 (1972-12-01), Moss
patent: 3915844 (1975-10-01), Ueda et al.
patent: 3923635 (1975-12-01), Schulman et al.
patent: 4169038 (1979-09-01), Metrailer et al.
patent: 4216197 (1980-08-01), Moss
patent: 4243639 (1981-01-01), Haas et al.

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