METHOD OF PROCESSING GASOLINE FRACTIONS Russian patent published in 1997 - IPC

FIELD: gasoline production. SUBSTANCE: gasoline fraction is separated into light and heavy ones. The latter is reformed under elevated temperature and pressure 2.0- 4.0 MPa, whereas the former is reformed under elevated temperature and pressure 0.5-2.0 MPa. Products are extracted to give aromatic hydrocarbons and raffinate. Rectification of raffinate allows isolation of fraction boiling off between 90-93 and 100-103 C, which is combined with heavy gasoline fraction, while remaining fraction of raffinate are combined with product of reforming of heavy gasoline fraction. EFFECT: improved user's quality of gasoline product. 1 tbl