METHOD OF PRODUCTION OF MOTOR FUELS FROM GAS CONDENSATE Russian patent published in 1995 - IPC

FIELD: petroleum chemistry. SUBSTANCE: production of motor fuels consists in fractionation of gas condensate including separation of propane-butane fraction, straight run gasoline fraction, diesel fraction and residual fraction. Straight run gasoline fraction is brought in contact with zeolite-containing catalyst at 300 to 480 C and 0.2 to 4 MPa. The products thus obtained are fractionated separating gaseous or liquid products which are rectified separating high-octane and residual fractions. Separated propane-butane fraction or its mixture with gaseous products of contacting are subjected to pyrolysis followed by mixing them with straight run gasoline fraction and feeding the mixture for contacting with catalyst. The products thus obtained are fractionated separating pyrocondensate and pyrogas followed by mixing the pyrogas with straight run gasoline fraction and their joint contacting with catalyst. Liquid products of contacting are blended with pyrocondensate. The fraction thus obtained is subjected to rectification separating the target gasoline and residual fraction. Used as catalysts are systems prepared on base of zeolites with structures ZSM-5 or ZSM-13, including modified elements of groups 1, 2, 3, 5, 6 and 8 of the Periodic Table of elements. EFFECT: enhanced efficiency. 4 cl, 2 dwg, 1 tbl