Access the full text.
Sign up today, get DeepDyve free for 14 days.
D. Subramanian, J. Ritter (1997)
Equilibrium theory for solvent vapor recovery by pressure swing adsorption: analytical solution for process performanceChemical Engineering Science, 52
McIntyre McIntyre, Ritter Ritter (2005)
Experimental Study of a Dual‐Reflux Pressure‐Swing Adsorption Cycle for Gas SeparationInd. Eng. Chem. Res.
J. Intyre, A. Holland, J. Ritter (2002)
High Enrichment and Recovery of Dilute Hydrocarbons by Dual-Reflux Pressure-Swing AdsorptionIndustrial & Engineering Chemistry Research, 41
A. Ebner, J. Ritter (2002)
Equilibrium theory analysis of rectifying PSA for heavy component productionAiche Journal, 48
K. Knaebel, F. Hill (1985)
Pressure swing adsorption: Development of an equilibrium theory for gas separations☆Chemical Engineering Science, 40
D. Diagne, M. Goto, T. Hirose (1995)
Parametric Studies on CO2 Separation and Recovery by a Dual Reflux PSA Process Consisting of Both Rectifying and Stripping SectionsIndustrial & Engineering Chemistry Research, 34
Masayuki Yoshida, J. Ritter, A. Kodama, M. Goto, T. Hirose (2003)
Enriching reflux and parallel equalization PSA process for concentrating trace components in airIndustrial & Engineering Chemistry Research, 42
D. Diagne, M. Goto, T. Hirose (1994)
New PSA Process with Intermediate Feed Inlet Position Operated with Dual Refluxes: Application to Carbon Dioxide Removal and EnrichmentJournal of Chemical Engineering of Japan, 27
D. Diagne, M. Goto, T. Hirose (1996)
Numerical analysis of a dual refluxed PSA process during simultaneous removal and concentration of carbon dioxide dilute gas from airJournal of Chemical Technology & Biotechnology, 65
A dual reflux (DR) PSA cycle that combines the features of a conventional (stripping reflux) PSA cycle with those of a new enriching reflux PSA cycle is analyzed to show its potential for separating gas mixtures. On the basis of isothermal equilibrium theory applied to linear isotherms, the ultimate separation is carried out where the binary feed is separated into two pure components with 100% recovery of each component. This very idealized analysis reveals that such a separation is possible over a wide range of conditions, even with pressure ratios as low as 1.1. This analysis also reveals that low throughputs and high heavy component recycle ratios are inherently associated with DR PSA cycles, both of which may be detrimental to the process economics. High throughputs and low heavy product recycle ratios are indeed achievable, but only when using low pressure ratios and less selective adsorbents, both counterintuitive results that make sense when considering the perfect separation is always being achieved. Although these trends may not carry over to actual practice, because the model developed here is overly simplified and invalid under certain conditions, this analysis shows that it may indeed be entirely feasible to separate a binary gas mixture into two relatively pure components with very high recoveries using a DR PSA cycle operating with a very low pressure ratio and, hence, expenditure of energy. © 2004 American Institute of Chemical Engineers AIChE J, 50: 2418–2429, 2004
Aiche Journal – Wiley
Published: Oct 1, 2004
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.