842000350t/a2#TE624A1004-0935(2012)01-0041-052011-08-301977-1998,E-mail:libin19810703@163.com,0997-7979438tImprovementMethodoftheCirculatingFilteringProcessforBottomOiloftheFractionatingTowerinDelayedCokingUnitZHANGWei-dongWANGLi-juanTransformationofElectricalDesaltingUnittoReduceSaltContentinDesaltedCrudeOilWUZhen-huaLIBin