METHOD FOR DECREASING BENZENE CONTENT IN GASOLINE FRACTIONS Russian patent published in 2008 - IPC C10G65/08 C10G69/02 

FIELD: fuels, chemical technology.

SUBSTANCE: invention relates to the content of benzene in commercial gasoline. Invention claims a method for decreasing the content of benzene in gasoline fractions by hydrogenation and isomerization in the presence of catalysts at increased temperatures and pressure of raw consisting of HK-85C fraction of the stable reforming fraction containing paraffins, naphthtenes and aromatic hydrocarbons with a directly distilled fraction wherein a directly distilled fraction represents HK-70C fraction and with recycle of flow isolated from products of isomerization of a hydrogenated fraction, regulation of temperature in the isomerization block of hydrogenation by measurement of amount of recycle taken in the amount 10-30% as measured for the parent raw.

EFFECT: improved decreasing method.

6 cl, 7 tbl, 11 ex