| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to method of obtaining aromatic compounds from initial hydrocarbon stream, in which: initial hydrocarbon stream is passed into separation unit with formation of light technological flow, which contains C-hydrocarbons and has reduced concentration of endothermic hydrocarbon components, and heavy technological flow, which contains C-hydrocarbons, as well as Cand C-naphthenes and has higher concentration of endothermic components; light technological flow in passed into first reforming reactor, with first reforming reactor having working temperature higher than 540°C; heavy technological flow is passed into second reforming reactor, with formation of output flow of second reforming reactor, with second reforming reactor having second working temperature, and first working temperature is higher than second working temperature; output flow of second reforming reactor is passed into first reforming reactor, with formation of output flow of first reforming reactor; output flow of first reforming reactor is passed into unit of separation of aromatic compounds, with formation of flow of aromatic products and raffinate flow. First reforming reactor and second reforming reactor contains the same catalyst, containing noble metal of group VIII on substrate, and first reforming reactor and second reforming reactor work under pressure lower than 580 kPa (abs).EFFECT: application of claimed invention makes it possible to increase quantity of obtained benzene and toluene.8 cl, 5 dwg, 2 tbl |
