Heat Integrated Distillation Column (Hidic): Experimental Study on a New Concentric Column Technology
Meyer, Michel
Mizzi, Benoit
Rouzineau, David
Yala, Omar
Download PDF

How to Cite

Meyer M., Mizzi B., Rouzineau D., Yala O., 2018, Heat Integrated Distillation Column (Hidic): Experimental Study on a New Concentric Column Technology, Chemical Engineering Transactions, 69, 859-864.
Download PDF


Distillation is the most applied separation technology. Its major drawback is the low thermodynamic efficiency (typically around 15 %). In response to the environmental issues that concerns energy consumption of distillation column, HIDiC (heat integrated distillation column) which combines advantages of vapor recompression and diabatic operation, is expected to have a large impact on energy saving. In this study, a concentric column which contains an innovative column packing designed in LGC research lab of Toulouse is carried out. First of all, this novel technology is characterized from a heat transfer point of view in a dedicated pilot plant. Compared to the Raschig super-ring results, the heat transfer in this innovative column packing is much more efficient, with a heat transfer increase of 102 %. A second HIDiC pilot has been implemented to test the operability and the overall performances of this HIDIC technology. Different tests have been made to reach a time of steady state of 90min. Several experiments were carried out with different operating parameters (boiler heat and pressure ratio). The Cyclohexane/n-Heptane binary mixture is used for these experiments. The simulation results of a classical distillation column are compared to HIDiC column steady state operation. This comparison demonstrates an energy saving about 40 %.
Download PDF