FIELD: chemistry.
SUBSTANCE: invention relates to a method for producing olefins and aromatic hydrocarbons from naphtha, comprising the stages of: 1) conducting the naphtha extraction separation to obtain purified oil containing alkanes and cycloalkanes and an oil extract containing cycloalkanes and aromatic hydrocarbons, the weight ratio between cycloalkanes contained in the refined oil and cycloalkanes contained in the naphtha being 10-35%, 2) contacting the oil extract containing cycloalkanes and the aromatic hydrocarbons with a reforming catalyst under conditions of the catalytic reforming reaction: the pressure of 0.2-3.0 MPa, the temperature of 300-550°C, the molar ratio of hydrogen/hydrocarbon 0.5-20 and volumetric speed (of feeding) of 0.1-50 p-1 to obtain a reformate with the high content of aromatic hydrocarbons, 3) the reactions of cracking of refined oil containing alkanes and cycloalkanes, to obtain olefins.
EFFECT: it is possible to obtain light olefins and light aromatic hydrocarbons with high output.
14 cl, 2 dwg, 8 ex, 5 tbl
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Authors
Dates
2017-04-04—Published
2014-03-04—Filed