FIELD: petroleum processing. SUBSTANCE: before feeding stripped oil into atmospheric column or feeding mazut into vacuum column, liquid stream is subjected to integrated hydromechanical and acoustic treatment in rotary-pulsation acoustic apparatus within velocity gradients in the rotor-stator gap from 4.7*103 to 1.3*107 s-1 at rotor rotation speed from 1000 to 125000 rpm, while affecting stream by acoustic field with intensity 102-105 W/sq.cm within the range of disk-radial vibrations of rotor and stator between 0.01 and 63 kHz. Owing to change in dispersion state of oil or mazut, recovery oil distillate fractions is increased by 30 to 70% as compared to prior-art process. EFFECT: increased yield of desired fractions. 12 dwg, 4 tbl, 18 ex
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Authors
Dates
2000-10-27—Published
1999-06-22—Filed