Gas permeation through DDR-type zeolite membranes at high temperatures

Masakoto Kanezashi, Jessica O'Brien-Abraham, Jerry Lin, Kenji Suzuki

Research output: Contribution to journalArticle

143 Citations (Scopus)

Abstract

DDR-type zeolite membranes were prepared by the secondary growth method on porous α-alumina disk, followed by on-stream counter diffusion chemical vapor deposition modification to eliminate the inter crystalline micropores. Single gas permeation of He, H2, CO2, and CO through this zeolite membrane before and after CVD modification was measured in 25-500°C. Intracrystalline diffusivities for these four gases in DDR-type zeolite were obtained from the permeation data above 300°C to examine the effects of the size and molecular weight of permeating gases on diffusion and permeation rate for this zeolite membrane. For the unmodified DDR-type zeolite membrane with presence of a small amount intercrystalline micropores the diffusivity (or permeance) with a low activation energy depends on both the size and molecular weight of permeating gases. For the CVD-modified DDR-type zeolite membrane with intercrystalline micropores eliminated, the activation energy for diffusion and diffusivity increases with increasing molecular size of the permeating gases.

Original languageEnglish (US)
Pages (from-to)1478-1486
Number of pages9
JournalAICHE Journal
Volume54
Issue number6
DOIs
StatePublished - Jun 2008

Fingerprint

Zeolites
Permeation
Gases
Membranes
Temperature
Chemical vapor deposition
Activation energy
Molecular Weight
Molecular weight
Aluminum Oxide
Carbon Monoxide
Alumina
Crystalline materials
Growth

Keywords

  • DDR-type zeolite membrane
  • Diffusion theory
  • Diffusivity
  • Gas permeation
  • High temperatures

ASJC Scopus subject areas

  • Biotechnology
  • Chemical Engineering(all)
  • Mechanical Engineering
  • Environmental Engineering
  • Polymers and Plastics

Cite this

Gas permeation through DDR-type zeolite membranes at high temperatures. / Kanezashi, Masakoto; O'Brien-Abraham, Jessica; Lin, Jerry; Suzuki, Kenji.

In: AICHE Journal, Vol. 54, No. 6, 06.2008, p. 1478-1486.

Research output: Contribution to journalArticle

Kanezashi, M, O'Brien-Abraham, J, Lin, J & Suzuki, K 2008, 'Gas permeation through DDR-type zeolite membranes at high temperatures', AICHE Journal, vol. 54, no. 6, pp. 1478-1486. https://doi.org/10.1002/aic.11457
Kanezashi, Masakoto ; O'Brien-Abraham, Jessica ; Lin, Jerry ; Suzuki, Kenji. / Gas permeation through DDR-type zeolite membranes at high temperatures. In: AICHE Journal. 2008 ; Vol. 54, No. 6. pp. 1478-1486.
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