PRODUCTION OF BRANCHED ALIPHATIC ALCOHOLS USING PROCESS FLOW OF DEHYDROGENATION-ISOMERISATION INSTALLATION Russian patent published in 2009 - IPC C07C29/16 C07C31/125 C07C31/02 

FIELD: chemistry.

SUBSTANCE: present invention pertains to the method of producing aliphatic alcohols. The method involves feeding the first hydrocarbon stream, obtained using the Fischer-Tropsch method, containing olefins and paraffins. The Fischer-Tropsch stream contains 5-80% olefins, with 10-17 average number of carbon atoms. This hydrocarbon stream is fed into the hydrogenation-isomerisation installation, where there is dehydrogenation of at least part of paraffins in the Fischer-Tropsch hydrocarbon stream to olefins. The installation is also made such that, there is isomerisation of at least part of linear olefins to branched olefins, in the presence of a dehydrogenation-isomerisation catalyst, containing zeolite in hydrogen form, with a ferrierite isotope structure. Duration of stay is such that, conversion of paraffins to olefins is lower than 40%, and at least part of unreacted components of the hydrocarbon stream, obtained using the Fischer-Tropsch method and at least, part of products of the dehydration and isomerisation reaction form a second hydrocarbon stream. This second hydrocarbon stream contains olefins and paraffins. At least some of the olefins in the second hydrocarbon stream are branched. The method also involves feeding at least part of the second hydrocarbon stream into a hydroformylation installation. The hydroformylation installation is made such that, at least part of the olefins in the second hydrocarbon stream can be undergo hydroformylation, obtaining aliphatic alcohols with average number of carbon atoms from 11 to 18, and at least part of the obtained aliphatic alcohols contain branched alkyl groups.

EFFECT: invention can be used for producing surface active substances, detergents and sulphates.

9 cl, 7 tbl, 6 dwg, 6 ex