FIELD: oil and gas production.
SUBSTANCE: invention refers to procedure for oxidising demercaptanisation of oil and oil distillates consisting in effecting black oil with oxidant at presence of catalyst. As catalyst there is used mixture of derivative of transition metal bound into a complex with nitrogen containing ligand and triazines at ratio of complex of derivative of transitional metal /triazines 1/3.0-1/4.0. The process is carried out at pH of reaction medium 5.5-6.0 and temperature 20-120°C. As oxidant there is used nitrogen-air mixture with contents of oxygen not less, than 3 vol. %.
EFFECT: production of high purity oil and oil distillates due to more complete oxidation of sulphur containing compounds and due to increased stability of catalyst system at simultaneous improvement of performance characteristics of process.
10 ex, 2 tbl
