Method of purifying crude petroleum and primary refining product

Details Method of purifying crude petroleum and primary refining product Method of purifying crude petroleum and primary refining product

1974-01-03

1976-12-07

Crasanakis, G. J.

Mineral oils: processes and products

Refining

Sulfur removal

208244, 208249, C10G 2904, C10G 2906

Patent

active

039961303

ABSTRACT:
A method of purifying crude petroleum and primary refining products of their sulfur, sulfur compounds, nitrogen- and oxygen-containing compounds which comprises treating crude petroleum or virgin petroleum stocks with complexes or salts of transition metals (.pi. -complexes of transition metals), salts or .pi. -allylic complexes of platinum metals and carbonyl complexes of transition metals at a temperature of 80.degree.-120.degree. C, followed by separating the purified target product from the resulting reaction mixture. stability
The method of the invention makes it possible to effect petroleum product purification as a single-stage process and, in contrast to the available methods, dispenses with the employment of hydrogen, catalysts, and aqueous alkalies. The petroleum products treated by the present method are completely free of hydrogen, sulfur, mercaptan and disulfide sulfur, the content of total sulfur being substantially reduced (by a factor of 2 to 6), another beneficial effect being a 20-50% reduction of the content of nitrogen- and oxygen-containing compounds and naphthenic compounds, thereby enhancing essentially the marketability of petroleum products and improving such properties as colour, odor, stability and gum formation resistance.

REFERENCES:
patent: 809087 (1906-01-01), Blackmore
patent: 2306933 (1942-12-01), Burk
patent: 2615831 (1952-09-01), Bishop et al.
patent: 2756182 (1956-07-01), Kimberlin, Jr. et al.
patent: 3488716 (1970-01-01), Eng
patent: 3865715 (1975-02-01), Nametkin et al.

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