Liquid diffusion and adsorption of aqueous ethanol, propanols, and butanols in silicalite by HPLC

Jerry Lin, Yi Hua Ma

Research output: Chapter in Book/Report/Conference proceedingConference contribution

25 Scopus citations

Abstract

The diffusion and equilibrium adsorption of aqueous alcohols in silicalite crystals have been studied using a novel HPLC technique. With a nonlinear mathematical model, the adsorption isotherms and intracrystalline diffusivities have been determined at 10, 30, 50, 70°C for ethanol, i-propanol, i-butanol, and at 30°C for n-propanol and n-butanol. The liquid intracrystalline diffusivities are found to be in the range of 10 -9 to 10 -11 cm 2/s and decrease in the folowing order: n-butanol> n-propanol> ethanol >i-propanol> i-butanol. The adsorption equilibrium results determined by the present HPLC technique are compared with those measured by the conventional batch method and good agreement is found between the two methods.

Original languageEnglish (US)
Title of host publicationACS Symposium Series
PublisherPubl by ACS
Pages452-466
Number of pages15
Edition368
StatePublished - 1988
Externally publishedYes
EventPerspectives in Molecular Sieve Science - Toronto, Ont, Can
Duration: Jun 5 1988Jun 11 1988

Other

OtherPerspectives in Molecular Sieve Science
CityToronto, Ont, Can
Period6/5/886/11/88

ASJC Scopus subject areas

  • Chemistry(all)

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