Sol-gel preparation and properties of alumina adsorbents for gas separation

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The sol-gel method is applied to prepare Cu+ or Ag+ containing alumina adsorbents which have potential application in purification or separation of carbon monoxide or olefins containing gases. Wet impregnation and sol-solution mixing methods are used to incorporate the active species into the sol-gel derived γ-alumina support. These alumina adsorbents have the characteristics of large specific surface area, high dispersion of active species on the grain surface, and mesopore size with a uniform pore size distribution. The gas chromatographic technique determines the carbon monoxide adsorption properties on these alumina adsorbents. Adsorption equilibrium constants, adsorption rate constants, axial dispersion coefficients, heat of adsorption, and adsorption activation energy are determined from GC response peaks by using the moment method. The alumina adsorbents prepared by the sol-gel method appear to be superior to the similar adsorbents prepared by other methods.

Original languageEnglish (US)
Pages (from-to)559-570
Number of pages12
JournalAICHE Journal
Volume41
Issue number3
StatePublished - Mar 1995
Externally publishedYes

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Aluminum Oxide
Polymethyl Methacrylate
Adsorbents
Adsorption
Sol-gels
Alumina
Gases
Gels
Carbon Monoxide
Carbon monoxide
Sol-gel process
Equilibrium constants
Alkenes
Sols
Method of moments
Impregnation
Specific surface area
Olefins
Pore size
Purification

ASJC Scopus subject areas

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

Cite this

Sol-gel preparation and properties of alumina adsorbents for gas separation. / Deng, S. G.; Lin, Y. S.

In: AICHE Journal, Vol. 41, No. 3, 03.1995, p. 559-570.

Research output: Contribution to journalArticle

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