Title
An MPEC formulation for dynamic optimization of distillation operations
Abstract
We consider the dynamic optimization of chemical processes with changes in the number of equilibrium phases. Recent work has shown that transitions in the number of phases can be modeled as a mathematical program with equilibrium constraints (MPEC). This study generalizes the MPEC to consider dynamic characteristics. In particular, we describe a simultaneous discretization and solution strategy for dynamic optimization problems with complementarity constraints. These discretized problems are then solved with IPOPT-C, a recently developed barrier method for MPEC problems. Our approach is applied to two distillation examples. In the first, we consider the optimal startup of a binary batch distillation problem. In the second, we consider the dynamic operation of a cryogenic column for the separation of natural gas liquids. Both cases demonstrate the effectiveness of the approach on large scale MPEC problems.
Year
DOI
Venue
2004
10.1016/j.compchemeng.2004.03.015
Computers & Chemical Engineering
Keywords
Field
DocType
Dynamic optimization,Nonlinear programming,Barrier methods,Complementarity conditions,Distillation
Chemical process,Discretization,Mathematical optimization,Nonlinear programming,Control engineering,Distillation,Batch distillation,Barrier method,Optimization problem,Mathematics,Binary number
Journal
Volume
Issue
ISSN
28
10
0098-1354
Citations 
PageRank 
References 
13
1.12
6
Authors
3
Name
Order
Citations
PageRank
Arvind U. Raghunathan116320.63
M. Soledad Diaz2262.85
Lorenz T. Biegler32271185.43