A Fractionation System Using Thermally Coupled Distillation Column with Postfractionator and Its Fractionation Method

摘要

The present invention is a low-boiling component to the primary three components are mixed mixture material (F) that the three components are mixed in the pre-processing tower 110, the pretreatment tower 110, which is injected into the mixture material (F) and the high boiling point components is separated into consists of moving the part in the middle of the pylon 120 and the main tower is transferred to a post-treatment container (130) to purify the intermediate product structure, the upper part of the condenser 140 of the pylon 120, the lower portion relates to the fractional distillation method reboiler 150 using a fractional distillation apparatus and apparatus using a composite column distillation system been characterized in that each installation. ; Therefore, you can configure a new process to the design method shown in the fractionation method using a fractional distillation apparatus and a device using the post-processing tower is a heat composite column system attachment of this invention, particularly, the distillation apparatus of the invention of the pylons in the middle of the feed part of the product after treatment with the tower, as intermediate products to produce a high concentration can be obtained energy savings compared to conventional thermal composite system. ; Pre-treatment tower, the post-processing tower, fractionation, three component separation, equilibrium distillation, BTX