Integrated membrane material design and system synthesis

Garry S.P. Taifan, Christos T. Maravelias

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


In designing membrane systems, the synergy between membrane materials and the process design is often overlooked. We present a mixed-integer nonlinear programming (MINLP) model for synthesizing membrane systems while simultaneously designing the respective membrane materials for multicomponent gas separation. The approach considers superstructure representations for systems with: (1) same, (2) potentially different, and (3) property-targeting membrane materials. In the first two systems, the selection of membrane material is a decision, while in the final type, membrane permeances are subject to optimization. Physics-based surrogate models are used to describe permeation in crossflow and countercurrent flow permeators. We show that, through a case study of biogas upgrading, our approach obtains high quality solutions. Furthermore, we use the proposed approach while considering permeance-based production cost to find the optimal membrane.

Original languageEnglish (US)
Article number118406
JournalChemical Engineering Science
StatePublished - Apr 5 2023
Externally publishedYes

All Science Journal Classification (ASJC) codes

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


  • Global optimization
  • Membrane systems
  • Multicomponent gas separation
  • Process synthesis


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