Gas adsorption isotherms from composition and flow-rate transient times in chromatographic columns. II. Effect of pressure changes

Abstract

Restricted accessMoreSectionsView PDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmail Cite this article Mason Geoffrey and Buffham Bryan A. 1996Gas adsorption isotherms from composition and flow-rate transient times in chromatographic columns. II. Effect of pressure changesProc. R. Soc. Lond. A.4521287–1300http://doi.org/10.1098/rspa.1996.0066SectionRestricted accessArticleGas adsorption isotherms from composition and flow-rate transient times in chromatographic columns. II. Effect of pressure changes Geoffrey Mason Google Scholar Find this author on PubMed Search for more papers by this author and Bryan A. Buffham Google Scholar Find this author on PubMed Search for more papers by this author Geoffrey Mason Google Scholar Find this author on PubMed Search for more papers by this author and Bryan A. Buffham Google Scholar Find this author on PubMed Search for more papers by this author Published:08 June 1996https://doi.org/10.1098/rspa.1996.0066AbstractIn the previous paper a method was described for measuring binary adsorption isotherms by a chromatographic method. The method involved making simultaneous small perturbations to the concentration and flow-rate of the stream entering a packed column and observing the changes with time of the composition and flow-rate of the gas leaving the column. The perturbation to the inlet flow was made by adding a small extra stream of gas of known composition to the main flow passing through the columns. The present paper describes the effect of the increased mean pressure in the column caused by the small increase in flow. The effect is surprisingly large. A correction term is derived to compensate for the effect of increased pressure. By reanalysing the results for argon-nitrogen reported in Paper I it is shown that instead of two different isotherms being obtained by making the perturbation with the addition of argon or nitrogen, a single isotherm for each component is obtained.FootnotesThis text was harvested from a scanned image of the original document using optical character recognition (OCR) software. As such, it may contain errors. Please contact the Royal Society if you find an error you would like to see corrected. Mathematical notations produced through Infty OCR. Previous ArticleNext Article VIEW FULL TEXT DOWNLOAD PDF FiguresRelatedReferencesDetailsCited by Kennedy D and Handan Tezel F (2013) Improved method for determining binary adsorption isotherms by using concentration pulse chromatography: adsorption of CO2 and N2 by silicalite at different pressures, Adsorption, 10.1007/s10450-013-9562-z, 20:1, (189-199), Online publication date: 1-Jan-2014. Heslop M, Buffham B and Mason G (2007) Binary chromatographic retention times from perturbations in flowrate and composition, Adsorption, 10.1007/s10450-007-9082-9, 14:1, (143-155), Online publication date: 1-Feb-2008. Li P and Handan Tezel F (2007) Adsorption separation of N2, O2, CO2 and CH4 gases by β-zeolite, Microporous and Mesoporous Materials, 10.1016/j.micromeso.2006.08.016, 98:1-3, (94-101), Online publication date: 1-Jan-2007. Brandani S (2005) On the Chromatographic Measurement of Equilibrium Isotherms Using Large Concentration Steps, Adsorption, 10.1007/s10450-005-5929-0, 11:S1, (231-235), Online publication date: 1-Jul-2005. Matuszak D, Gaddy G, Aranovich G and Donohue M (2005) Cosorption effect in gas chromatography: flow fluctuations caused by adsorbing carrier gases, Journal of Chromatography A, 10.1016/j.chroma.2004.11.064, 1063:1-2, (171-180), Online publication date: 1-Jan-2005. Buffham B, Hellgardt K, Heslop M, Mason G and Richardson D (2002) Modelling and simulation of the flux responses of a gas–solid catalytic micro-reactor, Chemical Engineering Science, 10.1016/S0009-2509(01)00436-5, 57:6, (953-966), Online publication date: 1-Mar-2002. Buffham B, Hellgardt K, Heslop M and Mason G (2000) Remote sensing of the flux responses of a gas–solid catalytic micro-reactor, Chemical Engineering Science, 10.1016/S0009-2509(99)00413-3, 55:9, (1621-1632), Online publication date: 1-May-2000. Mason G, Buffham B, Heslop M and Zhang B (1998) Capillary viscometry by perturbation of flow and composition, Chemical Engineering Science, 10.1016/S0009-2509(98)00106-7, 53:15, (2665-2674), Online publication date: 1-Aug-1998. Mason G, Buffham B and Heslop M (1997) Gas adsorption isotherms from composition and flow–rate transient times in chromatographic columns. III. Effect of gas viscosity changes, Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 453:1963, (1569-1592), Online publication date: 8-Aug-1997.Mason G and Buffham B (1997) Gas adsorption isotherms from composition and flow-rate transient times in chromatographic columns I. Basic theory and a binary experimental test, Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 452:1949, (1263-1285), Online publication date: 8-Jun-1996. This Issue08 June 1996Volume 452Issue 1949 Article InformationDOI:https://doi.org/10.1098/rspa.1996.0066Published by:Royal SocietyPrint ISSN:1364-5021Online ISSN:1471-2946History: Manuscript received22/02/1995Manuscript accepted07/06/1995Published online01/01/1997Published in print08/06/1996 License:Scanned images copyright © 2017, Royal Society Citations and impact