Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4726
Title: A chromatographic study of carbon monoxide adsorption on a clinoptilolite-containing natural zeolitic material
Authors: Narin, Güler
Yılmaz, Selahattin
Ülkü, Semra
Keywords: Adsorption equilibrium
Carbon monoxide
Clinoptilolite
Diffusion
Gas chromatography
Zeolites
Issue Date: Nov-2004
Publisher: Taylor and Francis Ltd.
Source: Narin, G., Yılmaz, S., and Ülkü, S. (2004). A chromatographic study of carbon monoxide adsorption on a clinoptilolite-containing natural zeolitic material. Chemical Engineering Communications, 191(11), 1525-1538. doi:10.1080/00986440490472643
Abstract: In this study, the equilibrium and kinetic parameters for CO adsorption on clinoptilolite-rich natural zeolitic material were determined by the concentration pulse chromatography technique. Experiments were carried out at different column temperatures (60-120°C) and interstitial carrier gas velocities (3.1-16.3 cm/s) using a clinoptilolite-rich natural zeolitic material packed column. The equilibrium and kinetic parameters were determined by matching the moments of the experimentally obtained response curves to the parameters in the mathematical model. The Henry's Law constants were found to decrease from 700 to 49 with increasing temperature. The heat of adsorption at low coverage was found to be 50.73 kJ/molK. The contributions from external film, macropore, and micropore diffusion resistances to mass transfer were determined, and the micropore diffusion resistance was found to be the major contributor. The micropore diffusivity as a function of crystal radius (Dc/rc 2) was determined and found to change between 5.72 × 10-4 and 1.34 × 10-2 s-1 in the temperature range studied.
URI: http://doi.org/10.1080/00986440490472643
http://hdl.handle.net/11147/4726
ISSN: 0098-6445
0098-6445
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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