Method of extractive separation, particularly of aromatic and non-aromatic components

摘要

An improved extracting separation method is described. The method comprises splitting the feed (22, 32) and/or recycle stream (24, 34) to the extraction zone (10), to improve extraction zone performance. A further improvement in separation is achieved by adding at least a portion of the recycle stream (24) to the extraction zone (10) above the point (30) where all the feed stream (32) is added to the extraction zone.