Correction procedures for extra-column effects in dynamic column breakthrough experiments

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Correction procedures for extra-column effects in dynamic column breakthrough experiments

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dc.contributor.author Rajendran, Arvind
dc.contributor.author Kariwala, Vinay
dc.contributor.author Farooq, Shamsuzzaman
dc.date.accessioned 2009-03-09T07:06:21Z
dc.date.available 2009-03-09T07:06:21Z
dc.date.copyright 2008
dc.date.issued 2009-03-09T07:06:21Z
dc.identifier.citation Rajendran, A., Kariwala, V., & Farooq, S. (2008). Correction procedures for extra-column effects in dynamic column breakthrough experiments. Chemical Engineering Science, 63(10), 2696-2706.
dc.identifier.issn 0009-2509
dc.identifier.uri http://hdl.handle.net/10220/4514
dc.description.abstract Dynamic column breakthrough experiments, routinely used to complement adsorption and diffusion studies at the particle scale, constitute an important step in the development and verification of dynamic models for simulation of adsorption processes. Various parts of the experimental set-up contribute to the retention time and band broadening of the experimental breakthrough curve. However, the effect of the extra-column contributions have to be properly accounted for in order to compare the experimental results with theoretical calculations. A common practice is to measure a blank response under the same flow rate, pressure and temperature conditions as the actual experiment by simply bypassing the adsorption column with a tube (or a connector) of negligible volume. This blank response is then subtracted point-by-point from the composite response (i.e., including the adsorption column) to account for extra-column contributions. The underlying assumption here is that blank and column responses are linearly additive, both in terms of mean residence time and band broadening. It is shown that this method of correction can, under certain operating conditions, lead to erroneous results. An alternative procedure based on linear regression is introduced and the improvements achieved by this method are illustrated using simulation examples.
dc.format.extent 34 p.
dc.language.iso en
dc.relation.ispartofseries Chemical engineering science
dc.rights Chemical Engineering Science. Copyright © 2009 Elsevier Ltd. All rights reserved. The Journal's web site is located at http://www.sciencedirect.com/science/journal/00092509
dc.subject DRNTU::Engineering::Chemical engineering::Chemical plants.
dc.subject DRNTU::Engineering::Chemical engineering.
dc.title Correction procedures for extra-column effects in dynamic column breakthrough experiments
dc.type Journal Article
dc.contributor.school School of Chemical and Biomedical Engineering
dc.date.journalvolissue Vol. 63, no. 10 (May 2008)
dc.identifier.openurl http://sfxna09.hosted.exlibrisgroup.com:3410/ntu/sfxlcl3?sid=metalib:ELSEVIER_SCIRUS&id=doi:&genre=&isbn=&issn=&date=2008&volume=63&issue=10&spage=2696&epage=2706&aulast=Rajendran&aufirst=%20A&auinit=&title=Chemical%20Engineering%20Science&atitle=Correction%20procedures%20for%20extra%2Dcolumn%20effects%20in%20dynamic%20column%20breakthrough%20experiments
dc.identifier.doi http://dx.doi.org/10.1016/j.ces.2008.02.023
dc.description.version Submitted version

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