Thermodynamic topological analysis at infinite and finite conditions for reactive mixtures of acetates
Advancing the chemical engineering fundamentals
Distillation, Absorption & Extraction (T2-10P)
Keywords: conceptual design and simulation, thermodynamic topological analysis, reactive distillation
When designing conventional and non-conventional distillation processes shortcut methods for predicting feasible separations are widely used. The thermodynamic topological analysis based on phase equilibrium and distillation maps study is a good approach allowing the knowledge of basic tower configuration at extreme conditions (infinite efficiency: total reflux and infinite number of stages). At these conditions usually the prediction is qualitatively approximate to that at total reflux. However some times the prediction strong differs from that, found during rigorous simulation. Additionally because of the infinite efficiency these regimes are not the optimal from the point of view of energy consumption. Making the thermodynamic topological analysis at finite reflux gives a closed region into the concentration simplex where feasible separations take place with a limit of minimal reflux number (minimal energy consumption).
Three component nonideal mixtures from acetates with different arranges of distillation maps are studied and the distillation configuration as well as parameters for rigorous simulation are presented. The mathematical method for solving the differential equations systems involved in phase equilibrium models is innovative and characterized by accuracy and low time calculations. All this information is used and explained as a way for the analysis of reactive distillation processes at finite reflux.
See the full pdf manuscript of the abstract.
Presented Tuesday 18, 13:30 to 15:00, in session Distillation, Absorption & Extraction (T2-10P).
