Spatially Resolved Tomographic Assessment of Axial Mixing in Structured and Random Packings

dc.contributor.authorKögl, Thilo
dc.contributor.authorLinder, Thomas
dc.contributor.authorArlt, Wolfgang
dc.date.accessioned2023-07-12
dc.date.available2023-10-16T20:57:43Z
dc.date.created2023
dc.date.issued2023-07-12
dc.description.abstract<title xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>Abstract</title><p xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink xml:lang=en>The liquid axial dispersion inside modern structured packings (Sulzer Mellapak™ 500.Y, Raschig Super‐Pak 350Y) and one random packing of the 4th generation (Raschig Super‐Ring 0.3) was measured by means of computed tomography. As the gas velocity is known to have little effect on the liquid axial dispersion at low hydraulic load, all experiments were conducted without countercurrent gas flow at liquid loads of <italic>B</italic> = 10, 15, and 20 m<sup>3</sup>m<sup>−2</sup>h<sup>−1</sup> in a column with an inner diameter of 100 mm. Injection of the X‐ray‐active tracer potassium iodide allows the identification of active and passive liquid accumulations inside the structured packing. Good agreement was found between the active liquid holdup from tomographic images and the total holdup calculated from the mean residence time for the structured packings.</p><p xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink xml:lang=en>Combining X‐ray‐active tracers und computed tomography, the liquid holdup and interfacial area inside structured and random packings were analyzed. Different kinds of dispersion effects were detected depending on the packing geometry. <boxed-text position=anchor content-type=graphic xml:lang=en> <graphic position=anchor id=jats-graphic-1 xlink:href=urn:x-wiley:09307516:media:ceat202200174:ceat202200174-toc-0001> <alt-text>image</alt-text> </graphic> </boxed-text> </p>en
dc.format.extent8
dc.identifier.citationChemical Engineering & Technology 46.5 (2023): S. 940-947. <https://onlinelibrary.wiley.com/doi/10.1002/ceat.202200174>
dc.identifier.doihttps://doi.org/10.1002/ceat.202200174
dc.identifier.issn0930-7516
dc.identifier.issn1521-4125
dc.identifier.opus-id23607
dc.identifier.urihttps://open.fau.de/handle/openfau/23607
dc.identifier.urnurn:nbn:de:bvb:29-opus4-236072
dc.language.isoen
dc.publisherWiley-VCH GmbH
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.de
dc.subjectAxial dispersion
dc.subjectComputed tomography
dc.subjectFluid dynamics
dc.subjectRandom packings
dc.subjectStructured packings
dc.subject.ddcDDC Classification::6 Technik, Medizin, angewandte Wissenschaften :: 62 Ingenieurwissenschaften :: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
dc.titleSpatially Resolved Tomographic Assessment of Axial Mixing in Structured and Random Packingsen
dc.typearticle
dcterms.publisherFriedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
local.date.prevpublished2023-04-18
local.document.pageend947
local.document.pagestart940
local.journal.issue5
local.journal.titleChemical Engineering & Technology
local.journal.volume46
local.sendToDnbfree*
local.subject.fakultaetTechnische Fakultät
local.subject.importimport
local.subject.sammlungUniversität Erlangen-Nürnberg / Eingespielte Open Access Artikel / Eingespielte Open Access Artikel 2023
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