NAPHTHA ISOMERISATION ON THREE CATALYTIC REACTION ZONES INSIDE A DISTILLATION COLUMN

摘要

A reactive rectification system is proposed for the production of high-octane components of petrol, containing a minimum of three reaction zones, one of which is a benzene hydroisomerisation zone, another of which is a hexane isomerisation zone and the third of which is a pentane isomerisation zone, moreover the benzene hydroisomerisation zone is located below all the other reaction zones and is situated in the lower part of the column, the hexane isomerisation zone is situated above the feed zone and below the pentane isomerisation zone, and the system contains at least one side draw situated above the hexane isomerisation zone and below the pentane isomerisation zone.