PROCESS AND APPARATUS FOR REMOVING HEAVY POLYNUCLEAR AROMATIC COMPOUNDS FROM A HYDROPROCESSED STREAM

摘要

The present invention is an improved process and apparatus for stripping HPNA's from hydroprocessed streams in a fractionation column having a split shell configuration. Only one vapor stripping feed is required to the split shell of the fractionation column. The resulting reduction in steam requirement provides a superior fractionation in the column.