OIL REFINING PLANT Russian patent published in 2002 - IPC

FIELD: oil refining industry; oil refining at production of distillate fraction to be used as fuel and bottoms. SUBSTANCE: oil refining plant includes furnace for heating oil which is connected with supply zone of atmospheric rectifying column and second atmospheric column. Bottom of first atmospheric column is connected with supply zone of second atmospheric column whose bottom is connected with vacuum column by means of pipe line. Liquid product discharged from bottom enters mixer. Mixture enters reactor through heating furnace; bottom of reactor is connected with high-pressure separator. Tops of reactor and high-pressure separator are connected with supply zone of first atmospheric column. Bottom of high-pressure separator is directly connected with cold separator whose overflow enters second atmospheric column. Distillate fractions are obtained at high yield in second atmospheric column and in vacuum column. EFFECT: enhanced efficiency. 1 dwg