Other

Vladimir Dmitrievich Tjurin

Nikolai S Nametkin

Viktor V Fedorov

Abram S Dekhterman

Ruslan Yakovlevich Barashkov

Irina P Podolskaya

Sergei P Gubin

Vladimir Alexandrovich Kozin

Anatoly P Skibenko

Sergel Pavlovich Gubin

Mikhail S Matveev

Valentina S Orlova

Leonid Ivanovich Larionov

Naum Borisovich Zhadanovsky

Alevtina I Savenko

A process for petroleum refining to obtain petroleum products having a reduced content of sulphur, oxygen-and nitrogen-containing compounds which comprises introducing into the petroleum during distillation volatile and nonvolatile carbonyl compounds of transition metals selected from the group consisting of Cr, V, Mo, W, Mn, Re, Fe, Co, Ni in amounts of from 0.02 to 0.2% by weight of the petroleum at a temperature ranging from 150.degree. to 350.degree. C under a pressure of from 1 to 7 atm abs. and distilling the petroleum into the desired products. Gasoline and kerosene resulting from such processing have a 5 to 10 times reduced content of mercaptan sulphur and 2 to 10 times reduced total sulphur content, as well as a reduced content of gums.

Process for petroleum refining

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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Moscow, Russia

Vladimir Dmitrievich Tjurin