Reformulations of mixed-integer programming continuous-time models for chemical production scheduling

Andres F. Merchan, Christos T. Maravelias

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Although several optimization models have been proposed for chemical production scheduling, there is still a need for effective solution methods. Accordingly, the goal of this work is to present different reformulations of representative continuous-time models by introducing an explicit variable for the number of batches of a given task. This idea, which has been successfully applied to discrete-time models, results in significant computational enhancement. We discuss how different objective functions benefit from particular reformulations and show significant improvements by means of an extensive computational study that includes several instances containing different process networks and scheduling horizons.

Original languageEnglish (US)
Pages (from-to)10155-10165
Number of pages11
JournalIndustrial and Engineering Chemistry Research
Issue number24
StatePublished - Jun 18 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering


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