Other

Vladimir Alexandrovich Kozin

Nikolai S Nametkin

Viktor V Fedorov

Vladimir Dmitrievich Tjurin

Naum Borisovich Zhadanovsky

Leonid Ivanovich Larionov

Sergel Pavlovich Gubin

Ruslan Yakovlevich Barashkov

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.

Method of purifying crude petroleum and primary refining products

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Gorky, undefined

Vladimir Alexandrovich Kozin