OLIGOMERIZATION OF OLEFINS FOR PRODUCING SYNTHETIC FUEL Russian patent published in 2018 - IPC C10G50/00 C10G69/12 C10L1/06 C10L1/08 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing a mixed composition of synthetic hydrocarbon fuels, that comprises bringing one or more olefins into contact with a catalyst in a oligomerization reaction zone under conditions providing for the oligomerization of olefins, and removing a product stream from the reaction zone, containing the products of the oligomerization of olefins, in which a fraction is recovered from the product stream, which has the following properties: (a) the boiling point distribution is characterized by the following: (i) 10% escapes up to 205°C or less and (ii) the final boiling point is 300°C or less under the measurement in accordance with ASTM D86; (b) freezing point is -47°C or less under the measurement in accordance with ASTM D2386; (c) the density at 15°C is equal to, at least, 775.0 kg/m³ under the measurement in accordance with ASTM D4052; and (d) the total concentration of monocyclic aromatic and monocyclic nonaromatic hydrocarbons is, at least, 1 vol %; and (e) the concentration of cyclic hydrocarbons is 30 vol % or less; where the specified oligomerization catalyst is a crystalline oxide, characterized by the structure of zeolite, and having acidity for Branstad, wherein the crystals of the oligomerization catalyst comprise an inorganic oxide skeleton with a porous internal structure and an external surface, in which the ratio of the number of acid centers of Branstad on the outer surface to the inner porous structure is 0.1-20% and/or the ratio of the inner surface area of the porous structure to the external surface area of the crystal is 5-1000. The invention also relates to a composition as well as to reactive and diesel fuel.

EFFECT: composition that has the required density, for use as aviation or diesel fuel, is produced.

24 cl, 2 ex, 3 tbl, 3 dwg