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Process synthesis and intensification framework for the separation of ternary mixtures
  • J. Rafael Alcántara Avila,
  • Cristopher Villegas Uribe
J. Rafael Alcántara Avila
Kyoto University

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Cristopher Villegas Uribe
Kyoto University
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Abstract

Typically, the synthesis problem starts from a set of preestablished connections between steams and unit operations resulting in distillation sequences, which can be included into superstructure representations and reformulated as mathematical programming problems. Nevertheless, in the last decades novel approaches to process synthesis that depart from the concept of unit operation and are based on phenomenological approaches have been proposed. This work decomposes distillation structures into distillation modules where a module is equivalent to a vapor-liquid equilibrium stage in which input and output material and heat flows connect modules. Also, a process synthesis an intensification (PS+I) framework is proposed for the synthesis of distillation structures separating ternary mixtures. The proposed framework has the following steps: database generation of distillation modules, optimization, solution interpretation, validation, and post-optimization. The separation of the BTX ternary mixture was taken as case study and several interpretation guidelines have been proposed.