METHOD OF CATALYTIC CONVERSION OF KETOACIDS THROUGH INTERMEDIATE DIMERS OF KETOACIDS AND THEIR HYDROPROCESSING IN HYDROCARBONS Russian patent published in 2017 - IPC C07C51/353 C07C51/373 C07C59/76 C10G3/00 C10G45/58 

FIELD: chemistry.

SUBSTANCE: invention relates to an improved catalytic conversion of ketoacids, including the increase in the molecular weight of ketoacids by the method, which includes the following stages: a source material is fed into a reactor, containing, at least, one ketoacid, the first reaction of the C-C binding is carried out in the source material in the presence of a catalyst based on ion-exchange resin for the formation of, at least, one dimer ketoacid, a reaction mixture is fed in to the reactor, containing, at least, one dimer ketoacid, the second reaction of C-C binding is carried out in the reaction mixture in the presence of hydrogen at a temperature of, at least, 200°C. The invention also relates to a method of producing hydrocarbons with high yield, involving a stage of increasing the molecular weight of ketoacid to obtain a reaction product and a stage of carrying out this reaction product of hydrodeoxygenation, and also optionally a stage of isomerization.

EFFECT: high-molecular compounds produced by the method according to the present invention, suitable for use as components of fuels or base oils, or chemicals.

13 cl, 4 dwg, 7 tbl, 3 ex