Abstract: Use of heavy dark components of oil, whose residue after distillation of fractions boiling out under 350 deg.C. contains copper and vanadium total not less than 0.005 mass % counted on pure metal, as a catalyst during oxidative purification of hydrocarbon compositions from hydrogen sulphide and light mercaptans. The catalyst is selected from heavy dark components of oil. A method of purification of hydrocarbon compositions from hydrogen sulphide and light mercaptans by its oxidation with air oxygen or oxygen-containing gas at temperatures from 55 deg.C. to 135 deg.C. in presence, as a catalyst, of heavy dark components of oil, whose residue after distillation of fractions boiling out up to 350 deg.C. contains copper and vanadium total not less than 0.005 mass % counted on pure metal.

Abstract: A catalyst is intended for the oxidative demercaptanization (sweetening) of hydrocarbons compositions including petroleum, petroleum distillates, gasolines, kerosenes, jet fuels, diesel fuels and heating oils, natural-gas liquids, etc. It may be used in a fixed-bed or fluidized-bed process. A catalyst consists of an active part and an inert component. The active part contains an oxide of a transition metal of Groups Ib, V-VIIb of the Periodic Table, either Ni, or Co oxide, or mixture of oxides of the indicated elements, and transition metal salts, and nitrogen-containing organics. The inert component is an oxide of an element of Groups IIa, IIIa, IV, or Fe oxide, or chemical compound including not less than 95% oxides of indicated elements, or mixture of the above compounds.

Abstract: A catalyst for oxidative demercaptanization of hydrocarbon compositions, comprising 0.2–5% of an oxide selected from the group consisting of an oxide of a transition metal of group Ib, an oxide of a transition metal of group Vb, an oxide of a transition metal of group VIb, an oxide of a transition metal of group VIIb, a nickel oxide, a cobalt oxide, and a mixture of at least two of said oxides; 0.5–20% of a transition metal salt; 0.5–20% of a nitrogen-containing organic compound; and an inert component, the rest up to 100%; wherein, the above described catalyst is used for demercaptanization or sweetening of hydrocarbon compositions.

Abstract: A catalyst is intended for the oxidative demercaptanization (sweetening) of hydrocarbons compositions including petroleum, petroleum distillates, gasolines, kerosenes, jet fuels, diesel fuels and heating oils, natural-gas liquids, etc. It may be used in a fixed-bed or fluidized-bed process. A catalyst consist of an active part and an inert component. The active part contains an oxide of a transition metal of Groups Ib, V-VIIb of the Periodic Table, either Ni or Co oxide, or mixture of oxides of the indicated elements, and transition metal salts, and nitrogen-containing organics. The inert component is an oxide of an element of Groups IIa, III, IV, or Fe oxide, or chemical compound including not less than 95% oxides of indicated elements, or mixture of the above compounds.