A frequency-response study of the kinetics of ammonia sorption in zeolite particles

G. Onyestyák, J. Valyon, L. V C Rees

Research output: Contribution to journalArticle

Abstract

The dynamic sorption properties of synthetic zeolite NaX and mordenite were studied using the batch-type frequency response (FR) method. FR rate spectra of NH3 sorption were recorded at 200 °C and pressures in the range of 1.0 - 4.0 Torr. The rate of diffusion controlled the rate of mass transport in particles larger than 0.2 mm. Commercial NaX beads, manufactured with binder additive showed higher diffusion resistance than binderless particles of the same zeolite. The rate of the sorption step governed the rate of NH3 transport in powder samples (3 sorption were compared for synthetic and natural mordenites.

Original languageEnglish
Pages (from-to)1639-1646
Number of pages8
JournalStudies in Surface Science and Catalysis
Volume142 B
Publication statusPublished - 2002

Fingerprint

Zeolites
Ammonia
sorption
frequency response
Frequency response
Sorption
ammonia
Kinetics
kinetics
Powders
Binders
Mass transfer
beads

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

A frequency-response study of the kinetics of ammonia sorption in zeolite particles. / Onyestyák, G.; Valyon, J.; Rees, L. V C.

In: Studies in Surface Science and Catalysis, Vol. 142 B, 2002, p. 1639-1646.

Research output: Contribution to journalArticle

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