Publication | Open Access
Energy Reduction in a Divided Wall Distillation Column
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2008
Year
EngineeringEnergy EfficiencyEnergy ConversionEnergy RecoveryChemical EngineeringEnergy AnalysisTransport PhenomenaEnergy ReductionSeparation TechniqueThermodynamicsAdvanced SeparationDividing Wall ColumnEnergy ConsumptionProcess DesignSeparation TechnologyHeat TransferMultiphase FlowProcess IntensificationThermal EngineeringWall Distillation Column
The paper presents the analysis of the thermal efficiency of a dividing wall distillation column and the influence of the feed composition on the reduction of energy consumption compared to a classical scheme of multicomponent mixture separation. The study relays on rigorous simulations in HYSYSTM using thermodynamically equivalent schemes. A case study is presented for the separation of a hydrocarbon mixture: benzene, toluene, ethylbenzene, o-xylene separated in three products in a dividing wall column. The dividing wall column solution led to about 40 % energy saving. The efficiency of a dividing wall column increases when the middle component is in large amount in the feed.