Ternary gas separation using two different membranes

A. Sengupta, K. K. Sirkar

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Ternary gas mixture separation can be achieved using two different membranes inversely selective to two different fast components of the feed. The separation can be carried out using a single module two-membrane permeator, or using two single-membrane permeators in series. Depending on the sequence of the membranes, there can be two series schemes. Experimental and theoretical investigations were carried out on the separation behavior of these three possible configurations using cellulose acetate hollow fibers and silicone rubber capillaries for He-CO2-N2 mixtures. The effects of operating conditions and system parameters have been studied. Important performance features have been analyzed and highlighted, and behavioral patterns have been identified. Unusual separation performances, observed sometimes for series schemes, have been explained satisfactorily. This analysis is expected to facilitate understanding of various ternary gas separation schemes using membranes, and selecting the optimum one.

Original languageEnglish (US)
Pages (from-to)61-77
Number of pages17
JournalJournal of Membrane Science
Issue number1
StatePublished - Oct 1988
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • General Materials Science
  • Physical and Theoretical Chemistry
  • Filtration and Separation


Dive into the research topics of 'Ternary gas separation using two different membranes'. Together they form a unique fingerprint.

Cite this