## Abstract

In this paper a comparison of some of the methods available for solving mixed integer non-linear programming (MINLP) problems is presented. Since some methods solve both a mixed integer linear programming (MILP) master problem and non-linear programming (NLP) subproblems during the iterations, while others only solve MILP master problems, a comparison of the computer resources needed for the optimization is presented. The methods are applied on a number of significant chemical engineering problems involving both MINLP problems (with a variety in the degree of discreteness and complexity) and some strict integer non-linear programming (INLP) problems. From the results, it is to be seen that a comparison of only the number of iterations needed in the optimization, doesn't allways measure the actual required resources of the optimization.

Original language | English |
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Journal | Computers and Chemical Engineering |

Volume | 20 |

Issue number | SUPPL.1 |

Publication status | Published - 1996 |

MoE publication type | A2 Review article in a scientific journal |

## Keywords

- Design Optimization
- INLP
- Mathematical Programming
- MILP
- MINLP
- Optimization
- Process Integration
- Process Synthesis