A modified hollow fiber contained liquid membrane technique for gas separation at high pressures

Theoharis Papadopoulos, Kalalesh K. Sirkar

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The hollow fiber contained liquid membrane (HFCLM) permeation technique has been modified by using microporous fibers having a thin nonporous silicone coating to handle higher gas pressures. Separation of various CO2-N2 mixtures have been studied over a feed pressure range of 50-200 psig. Pure water and aqueous 20% diethanolamine (DEA) were used as a liquid membranes. Two modes of operation, conventional polymeric membrane and sweep gas mode, were investigated. Permeator conditions studied include liquid membrane pressure higher and lower than the feed pressure. The aqueos 20% DEA resulted in significantly higher overall CO2 permeabilities and selectivity. A mathematical model was developed which included the pressure drop inside the fiber bores. Numerical simulations of the model describe the experimental results well.

Original languageEnglish (US)
Pages (from-to)163-181
Number of pages19
JournalJournal of Membrane Science
Volume94
Issue number1
DOIs
StatePublished - Sep 19 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Keywords

  • contained liquid membrane
  • gas separations
  • high pressure
  • hollow fiber

Fingerprint Dive into the research topics of 'A modified hollow fiber contained liquid membrane technique for gas separation at high pressures'. Together they form a unique fingerprint.

Cite this