FIELD: chemistry.
SUBSTANCE: invention relates to a method of oligomerisation of n-butenes which is characterised by that, it involves feeding n-butenes into a reactor with a distillation column with catalysts, consisting of a zeolite catalyst ZSM-57 bed, bringing said n-butenes into contact with said zeolite catalyst ZSM-57 in oligomerisation conditions at pressure ranging from 300 to 400 lbf/inІ and temperature ranging from 240 to 320 °F, that way providing for catalytic reaction with said n-butenes with formation of oligomers and simultaneous separation and extraction of said oligomers.
EFFECT: use of said method allows for higher conversion in a single operation than in other processes with high selectivity, allows for operating in less stringent temperature and pressure conditions, as well as increasing service life of catalyst.
12 cl, 5 tbl, 2 ex, 1 dwg
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