METHOD FOR OBTAINING A REAGENT TO REDUCE THE HYDRODYNAMIC RESISTANCE OF A TURBULENT FLOW OF LIQUID HYDROCARBONS IN PIPELINES Russian patent published in 2018 - IPC C10L1/16 C08F2/02 C08F10/14 C08F4/64 

FIELD: transportation; oil and gas industry.

SUBSTANCE: invention relates to the field of transportation of petroleum and petroleum products by means of pipelines. Method for producing a reagent for reducing the hydrodynamic resistance of a liquid hydrocarbon stream in pipelines involves the polymerization of C6-C14 alpha-olefins in the presence of a catalyst and a catalyst activator. Polymerization of C6-C14 alpha-olefins is carried out in a monomer medium supplemented with 0.1–5 % by weight of a saturated alicyclic hydrocarbon of the composition C8-C32 and a saturated aliphatic hydrocarbon of the C6-C18 composition when monomer conversion is 96.0–99.5 % by weight. In this case, as a catalyst, microspheric titanium trichloride is used, and as a catalyst activator, a mixture with a weight ratio of 1:10 to 10:1 diethylaluminum chloride and triisobutylaluminum is used. After this, a polymer with a molecular weight greater than 10⁷ u with a narrow molecular weight distribution of not more than 1.5 with a given ratio of components. Then the polymer is being ground.

EFFECT: obtaining a reagent is provided to reduce the hydrodynamic resistance of the flow of liquid hydrocarbons in pipelines at high conversion values of the feedstock and a high content of polymer fractions exhibiting an anti-turbulent effect.

6 cl, 1 tbl, 8 ex