Pure- and Mixed-Gas Sorption Measurements on Zeolitic Adsorbents via Gas-Phase Nuclear Magnetic Resonance

• Published in: Industrial & engineering chemistry research Vol. 41; no. 17; pp. 4430 - 4434
• Main Authors: Rittig, Frank, Aurentz, David J, Coe, Charles G, Kitzhoffer, Ronald J, Zielinski, John M
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 21.08.2002
• Subjects: Chemistry; Exact sciences and technology; General and physical chemistry; Solid-gas interface; Surface physical chemistry; Inorganic adsorbate; Methane; Gas mixture; Hydrocarbon; Organic adsorbate; Ternary mixture; Adsorption isotherm; NMR spectrometry; Inorganic adsorbent; Zeolite; Nitrogen; Experimental study; Molecular sieve; Gas solid adsorption; Binary mixture; Gas solid interface; Carbon monoxide; Measurement method
• ISSN: 0888-5885; 1520-5045
• DOI: 10.1021/ie020133o

Gas-phase NMR spectroscopy has been applied successfully in measuring pure- and mixed-gas equilibria on a 5A adsorbent for carbon monoxide, methane, and nitrogen. The reliability of the technique is established by comparing data collected here to pure-gas isotherms measured at 23 °C by standard volumetric expansion techniques in the pressure range of 0.5−5 atm. Mixed-gas equilibria data for binary gas mixtures as well as the ternary gas mixture are compared with predictions based on heterogeneous ideal solution adsorption theory analysis.