CHROMATOGRAPHSC STUDY OF DIFFUSION IN MOLECULAR-SIEVING CARBON

CHROMATOGRAPHSC STUDY OF DIFFUSION IN MOLECULAR-SIEVING CARBON

Chromatographic measurements were made for nitrogen adsorption on molecular-sieving carbons at 60, 100 and 150°C for several different nitrogen surface coverages. Apparent adsorption equilibrium constants were determined from the retention times of the peaks for different concentrations, and the ads...

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Veröffentlicht in:JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 1974/07/31, Vol.7(3), pp.151-157
Hauptverfasser: KAWAZOE, KUNITARO, SUZUKI, MOTOYUKI, CHIHARA, KAZUYUKI
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container_title JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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creator KAWAZOE, KUNITARO
SUZUKI, MOTOYUKI
CHIHARA, KAZUYUKI
description Chromatographic measurements were made for nitrogen adsorption on molecular-sieving carbons at 60, 100 and 150°C for several different nitrogen surface coverages. Apparent adsorption equilibrium constants were determined from the retention times of the peaks for different concentrations, and the adsorption equilibrium isotherms were then determined. The peak width gave the intra-microparticle diffusivity where the effects of all the other possible transport processes were taken into account. The strong dependence of the diffusivity on the amount adsorbed was explained in terms of chemical potential gradient as a driving force of the diffusion.
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title CHROMATOGRAPHSC STUDY OF DIFFUSION IN MOLECULAR-SIEVING CARBON
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