Application of Dividing Wall Column in Industrial Naphthalene Distillation: A Simulation Study

In this paper, application of dividing wall column (DWC) to industrial naphthalene was studied. Simulation using Aspen plus software was done to compare the traditional twin furnace and twin column (TFTC) process with new process based on DWC. The results show that, with the same feed parameters, the DWC processes can achieve identical separation effect as the TFTC process with an energy saving of 21.6%, and capital investment and space saving can also be gained. So the simulation results indicate that a DWC would be a beneficial alternative to conventional TFTC configuration for industrial naphthalene distillation.