Equilibrium Adsorption Isotherms of Pure N2 and O2 and Their Binary Mixtures on LiLSX Zeolite: Experimental Data and Thermodynamic Analysis

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• 作者：Chin-Wen Wu ; Mayuresh V. Kothare ; Shivaji Sircar
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2014
• 出版时间：April 30, 2014
• 年：2014
• 卷：53
• 期：17
• 页码：7195-7201
• 全文大小：358K
• 年卷期：v.53,no.17(April 30, 2014)
• ISSN：1520-5045

文摘

An isothermal鈥搃sobaric column dynamic test apparatus was built to measure equilibrium adsorption isotherms of pure N₂ and O₂ and their binary mixtures at 0, 30, and 65 掳C in the pressure range of 0鈥? atm on LiLSX zeolite. The data successfully passed an integral and a differential thermodynamic consistency test between pure and binary gas isotherms. The binary selectivities of N₂ over O₂ were functions of the gas-phase mole fraction and pressure, and the pure gas isosteric heats of adsorption decreased with increased loadings. Thus, the adsorbent was energetically heterogeneous for both gases. The degree of heterogeneity for N₂ was larger than that for O₂.