How to perform thermal integration of two towers using AspenPlus
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I would like to ask: When using ASPEN to model the separation of benzene and toluene, and intending to use the vapor from the top of the toluene column to heat the reboiler of the benzene column, how should the process be set up? And how should the reboiler of the benzene column be configured? Thank you
As for the process flow, just set up Aspen in the corresponding way; all you need to do is ensure that the top condenser and bottom reboiler of the Radfrac (distillation column) are set to \"none\", and manually add heat exchangers to serve as the condenser and reboiler.
Strictly speaking, as stated by zhxbkofkyo on the 3rd floor. Simply put, a two-column distillation sequence can be established directly, and then the reflux ratio of the low-pressure column can be adjusted so that the condensation load at the top of the high-pressure column is approximately equal to the load required by the reboiler at the bottom of the low-pressure column. The flowsheet specifications can then be used to ensure that during the adjustment of the low-pressure column’s reflux ratio, the objective function Qc (low pressure) + QR (high pressure) = 0 is satisfied