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Title: Effect of regeneration temperature on adsorption equilibria and mass diffusivity of zeolite 13x-water pair
Authors: Sayılgan, Şefika Çağla
Mobedi, Moghtada
Ülkü, Semra
Keywords: Adsorption
Adsorption equilibrium
Zeolite 13X-water
Volumetric analysis
Publisher: Elsevier Ltd.
Source: Sayılgan, Ş. Ç., Mobedi, M., and Ülkü, S. (2016). Effect of regeneration temperature on adsorption equilibria and mass diffusivity of zeolite 13x-water pair. Microporous and Mesoporous Materials, 224, 9-16. doi:10.1016/j.micromeso.2015.10.041
Abstract: The adsorption equilibrium and mass diffusivity of zeolite 13X-water pair for different adsorption and regeneration temperatures were determined by a homemade volumetric system. The isotherms of the zeolite 13X-water pair were obtained by collecting pressure versus time data and applying ideal gas law. The effective diffusivity of the pair was calculated by using long term analytical solution of mass diffusivity based on Fick's law. The experimental study showed that the adsorption capacity of zeolite 13X-water pair was 23% (kg/kg), 21% (kg/kg) and 19% (kg/kg) when the adsorption temperature was 35, 45 and 60 °C respectively for the desorption temperature of 90 °C. Furthermore, the adsorption capacity increased from 22% (kg/kg) to 24% (kg/kg) when the desorption temperature was increased from 90 °C to 150 °C. It was observed that the present adsorption equilibrium results were compatible with the reported results in the literature. The mass diffusivity of the pair was found in the range of 4 × 10-9-6 × 10-8 m2/s for the long time period when the initial adsorptive pressure was 2000 Pa. The effective mass diffusivity depends on concentration and it was decreased with increasing adsorbate concentration.
ISSN: 1387-1811
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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