FIELD: technological processes.
SUBSTANCE: present invention relates to a method of conversion of shale oil or a mixture of shale oil with nitrogen content at least 1 wt%. Method involves following steps: a) raw material is processed in a part of conversion in presence of hydrogen, wherein said part comprises at least one reactor with fluidised bed, which operates in mode of gaseous and liquid flow and comprising at least one catalyst on support; b) output stream obtained at step a) is fed, at least partially and frequently completely, into fractionation zone, from which, by means of atmospheric distillation, come out gaseous fraction, naphtha fraction, gas oil fraction and fraction heavier than gas oil; c) said naphtha fraction is processed, at least partially and frequently completely, in part for hydrotreatment in presence of hydrogen, wherein said part comprises at least one reactor with fixed layer, containing at least one hydraulic treatment catalyst; and d) said gas oil fraction is processed, at least partially and frequently completely, in other part for hydrotreatment in presence of hydrogen, wherein said part comprises at least one reactor with fixed layer, containing at least one hydraulic treatment catalyst; e) fraction heavier than gas oil fraction is subjected to liquid/liquid extraction to produce purified oil product and extract.
EFFECT: proposed method allows to obtain products of high quality with low content of sulphur and nitrogen.
16 cl, 2 dwg, 2 tbl, 1 ex
