DETERMINATION OF CATALYST SURFACE AREA FROM DESORPTION CHARACTERISTICS OF PHYSISORBED GASES.

D. J. Miller, H. H. Lee

Research output: Research - peer-reviewArticle

  • 5 Citations

Abstract

A new experimental method for the measurement of catalyst surface area of supported catalyst has been developed using selective physisorption. The desorption characteristics of a gas are studied separately on the catalyst, the support, and the supported catalyst carrying out thermal desorption experiments in a continuous flow sorptomer. Differences in the coverage vs. temperature curves, obtained from the thermal desorption experiments, are a measure of the selectivity of the physisorbing gas, and allow calculation of the fraction of total surface area occupied by the catalyst. Two systems have been studied utilizing the thermal desorption with carbon dioxide as adsorbate: potassium carbonate/carbon black and silver/alumina. The experimental technique allows for straightforward calculation of the catalyst area.

LanguageEnglish (US)
Pages128-136
Number of pages9
JournalAICHE Journal
Volume30
Issue number1
StatePublished - Jan 1984
Externally publishedYes

Profile

Desorption
Gases
Catalysts
Hot Temperature
Thermal desorption
Catalyst supports
Experiments
Soot
Aluminum Oxide
Silver
Carbon Dioxide
Temperature
potassium carbonate
Physisorption
Adsorbates
Potash
Carbon black
Carbon dioxide
Alumina

ASJC Scopus subject areas

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

Cite this

DETERMINATION OF CATALYST SURFACE AREA FROM DESORPTION CHARACTERISTICS OF PHYSISORBED GASES. / Miller, D. J.; Lee, H. H.

In: AICHE Journal, Vol. 30, No. 1, 01.1984, p. 128-136.

Research output: Research - peer-reviewArticle

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