OBTAINING BRANCHED ALIPHATIC ALCOHOLS USING JOINED TECHNOLOGICAL FLOWS OF HYDRATION INSTALLATION AND INSTALLATION FOR DEHYDRATION-ISOMERISATION Russian patent published in 2009 - IPC C07C29/16 C07C31/125 C07C31/02 

FIELD: chemistry.

SUBSTANCE: method includes introduction of hydrocarbon Fisher-Tropsch flow, containing olefins and paraffins, said hydrocarbon Fisher-Tropsch flow containing from 5 to 80% of olefins, which have average number of carbon atoms from 10 to 17, and paraffins, into installation of hydration, where hydration installation is made in such way as to hydrate at least part of olefins in hydrocarbon Fisher-Tropsch flow to paraffins, and where at least part of components of hydrocarbon Fisher-Tropsch flow, which did not react, and at least part of hydrated olefins form second hydrocarbon flow; introduction of second hydrocarbon flow into installation of dehydration-isomerisation, where installation of dehydration-isomerisation is made in such way as to hydrate at least part of paraffins in second hydrocarbon flow to olefins, and where installation of dehydration-isomerisation is also made in such way as to isomerize at least part of linear olefins to branched olefins in presence of dehydration-isomerization catalyst, which contains hydrogen form of zeolite, having isotopic lattice structure of ferrierite, and where period duration is such that transformation of paraffins into olefins is lower than 40% mol, and where at least part of second hydrocarbon flow components that did not react, and at least part of products of dehydration and isomerisation reactions form third hydrocarbon flow, and third hydrocarbon flow contains olefins and paraffins, and where at least part of olefins in third hydrocarbon flow represent branched olefins; and introduction of at least part of third hydrocarbon flow into installation of hydroformilation, where installation of hydroformilation is made in such way as to hydroformilate at least part of olefins in third hydrocarbon flow obtaining aliphatic alcohols with average number of carbon atoms from 11 to 18, and where at least part of obtained aliphatic alcohols contain branched alkyl group.

EFFECT: reduction of expenditure.

18 cl, 7 tbl, 5 dwg, 6 ex