Hollow fibers as structured packing for olefin/paraffin separations

Dali Yang, Robert S. Barbero, David J. Devlin, E. L. Cussler, Craig W. Colling, Martin E. Carrera

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


This paper explores the use of microporous hollow fibers as structured packing for a distillation column of propylene-propane. The actual column, which is less than 0.4 m long, yields more than 8% enrichment of propylene from a 30% propane/70% propylene mixture. It has an HTU as low as 0.1 m and an overall mass transfer coefficient of about 10-4 m/s with the resistance to mass transfer mainly coming from the vapor phase. The low HTU is due to the high mass transfer area per unit volume, over 1100 m2/m3. The results begin to explore the use of hollow fibers as packing for a practical distillation.

Original languageEnglish (US)
Pages (from-to)61-69
Number of pages9
JournalJournal of Membrane Science
Issue number1-2
StatePublished - Aug 1 2006


  • Distillation
  • Hollow fibers
  • Olefins
  • Paraffins
  • Structural packing

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