Please use this identifier to cite or link to this item: https://doi.org/10.1021/ie070860p
Title: A- and B-site substituted lanthanum cobaltite perovskite as high temperature oxygen sorbent. 2. column dynamics study
Authors: Guntuka, S.
Farooq, S. 
Rajendran, A.
Issue Date: 2-Jan-2008
Citation: Guntuka, S., Farooq, S., Rajendran, A. (2008-01-02). A- and B-site substituted lanthanum cobaltite perovskite as high temperature oxygen sorbent. 2. column dynamics study. Industrial and Engineering Chemistry Research 47 (1) : 163-170. ScholarBank@NUS Repository. https://doi.org/10.1021/ie070860p
Abstract: Perovskites, with exclusive selectivity for oxygen over nitrogen, offer significant promise as potential high temperature adsorbents for air separation. Results from fixed bed, breakthrough experiments at 500°C on two perovskite samples having compositions SrCo0.5Fe0.5O 3-δ and La0.1Sr0.8Ag0.1Co 0.5Fe0.5 O3-δ that were short-listed in our previous thermogravimetric study are presented here. The oxygen equilibrium capacities obtained from the breakthrough runs compared well with those from the thermogravimetric data. A numerical simulation model featuring axially dispersed plug flow with independently estimated axial dispersion coefficient, Langmuir isotherm fitted to the measured equilibrium data, and a linear driving force rate expression for mass transfer with a large rate constant was developed that effectively captured the essential features of the measured column dynamics. © 2008 American Chemical Society.
Source Title: Industrial and Engineering Chemistry Research
URI: http://scholarbank.nus.edu.sg/handle/10635/88435
ISSN: 08885885
DOI: 10.1021/ie070860p
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