METHOD AND INSTALLATION FOR FRACTIONING PETROLEUM Russian patent published in 1997 - IPC

FIELD: petroleum processing. SUBSTANCE: in the stage of recuperative heating of petroleum, vapors of gasoline and kerosene fractions are released in multiple steps following evaporation process. Released vapors are separately condensed and simultaneously fractioned, while condensation heat and heat produced from cooled condensates is utilized to heat starting petroleum. At least one of recuperative petroleum heaters is made in the form of fractioning condenser. Facilities to separate vapors after fractioning condenser consist of vapor separators and vaporizers. Vapor washers and column top are connected through pipelines with fractioning condenser. EFFECT: reduced power consumption and metal usage. 2 cl, 1 dwg