Separation of caffeine from supercritical carbon dioxide with a zeolite membrane

Yoshihiro Tokunaga, Tomoyuki Fujii, Kozo Nakamura

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Caffeine was separated from supercritical carbon dioxide with a zeolite membrane that had been tested for pervaporation. The pore size of the NaY zeolite membrane was evaluated to be of subnanometer scale from the result of a Dubinin-Astakhov analysis. The rejection of caffeine was 0.98 by the zeolite membrane which would make it applicable for SCCO2 membrane separation.

Original languageEnglish
Pages (from-to)1024-1026
Number of pages3
JournalBioscience, Biotechnology and Biochemistry
Volume61
Issue number6
DOIs
Publication statusPublished - 1997 Jan

Keywords

  • Caffeine
  • Dubinin–Astakhov analysis
  • Membrane separation
  • Supercritical carbon dioxide
  • Zeolite membrane

ASJC Scopus subject areas

  • Biotechnology
  • Analytical Chemistry
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry

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