Heterogeneous Batch Distillation Processes: Real System Optimisation

Sébastien Pommier (1) , Silvère Massebeuf (1) , Barnabas Kotai (2) , Peter Lang (2) , Olivier Baudouin (3) , Pascal Floquet (1) , Vincent Gerbaud (1)

1 LGC - Laboratoire de Génie Chimique
2 BME - Budapest University of Technology and Economics [Budapest]
3 ProSim. SA - ProSim. SA

In this paper, optimisation of batch distillation processes is considered. It deals with real systems with rigorous simulation of the processes through the resolution full MESH differential algebraic equations. Specific software architecture is developed, based on the BatchColumn® simulator and on both SQP and GA numerical algorithms, and is able to optimise sequential batch columns as long as the column transitions are set. The efficiency of the proposed optimisation tool is illustrated by two case studies. The first one concerns heterogeneous batch solvent recovery in a single distillation column and shows that significant economical gains are obtained along with improved process conditions. Case two concerns the optimisation of two sequential homogeneous batch distillation columns and demonstrates the capacity to optimize several sequential dynamic different processes. For such multiobjective complex problems, GA is preferred to SQP that is able to improve specific GA solutions.

Mots clés: Optimisation; Batch Distillation; Heterogeneous Azeotrope; Batch distillation sequence

Domaines: Génie chimique

Sébastien Pommier, Silvère Massebeuf, Barnabas Kotai, Peter Lang, Olivier Baudouin, et al.. Heterogeneous Batch Distillation Processes: Real System Optimisation. Chemical Engineering and Processing: Process Intensification, 2008, Vol. 47 N° 3., 408-419 available on : http://oatao.univ-toulouse.fr/2/1/gerbaud_2.pdf. ⟨10.1016/j.cep.2007.01.022⟩. ⟨hal-00467110⟩