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Static mixers: Effective means for intensifying mass transfer limited reactions

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dc.contributor.author Al Taweel A.M.
dc.contributor.author Azizi F.
dc.contributor.author Sirijeerachai G.
dc.contributor.editor
dc.date 2013
dc.date.accessioned 2017-10-04T11:03:28Z
dc.date.available 2017-10-04T11:03:28Z
dc.date.issued 2013
dc.identifier 10.1016/j.cep.2013.08.009
dc.identifier.issn 2552701
dc.identifier.uri http://hdl.handle.net/10938/13636
dc.description.abstract The potential of using screen-type static mixers to intensify mass transfer limited multiphase-reactions was investigated using a case of diesel desulfurization. Two reactor designs were assessed at different superficial velocities and operating temperatures. By focusing energy dissipation within a very narrow distance in the regions adjacent to the screen, it was possible to generate local energy dissipation rates as high as 40,000. W-kg while maintaining the specific energy consumption rates below 0.2. kWh-t of liquid processed. Depending on the operating temperature, up to 15,400-fold reduction in the residence time needed to react 95percent of the sulfur present in the diesel can be achieved by replacing a standard mixing tank agitated by a Rushton-type impeller with a screen-type static mixer. About 97percent of this can be credited to the higher inter-phase mass transfer achievable in screen-type static mixers, while the remaining 3percent can be attributed to the higher average mass transfer driving force encountered under the plug flow conditions prevalent in this contactor. The relatively uniform flow conditions encountered across the pipe diameter minimized the formation of difficult-to-separate liquid-liquid dispersions with the ensuing dispersion separating within 20 s. © 2013 Elsevier B.V.
dc.format.extent Pages: (51-62)
dc.language English
dc.publisher LAUSANNE
dc.relation.ispartof Publication Name: Chemical Engineering and Processing: Process Intensification; Publication Year: 2013; Volume: 72; Pages: (51-62);
dc.source Scopus
dc.title Static mixers: Effective means for intensifying mass transfer limited reactions
dc.type Article
dc.contributor.affiliation Al Taweel, A.M., Department of Process Engineering and Applied Science, Dalhousie University, Halifax, NS B3J 2X4, Canada
dc.contributor.affiliation Azizi, F., Chemical Engineering Program, American University of Beirut, Lebanon
dc.contributor.affiliation Sirijeerachai, G., Department of Chemical Engineering, Suranaree University of Technology, Thailand
dc.contributor.authorAddress Al Taweel, A.M.; Department of Process Engineering and Applied Science, Dalhousie University, Halifax, NS B3J 2X4, Canada; email: al.taweel@dal.ca
dc.contributor.authorCorporate University: American University of Beirut; Faculty: Faculty of Engineering and Architecture; Department: Chemical Engineering Program;
dc.contributor.authorDepartment Chemical Engineering Program
dc.contributor.authorDivision
dc.contributor.authorEmail Al.Taweel@Dal.Ca
dc.contributor.authorFaculty Faculty of Engineering and Architecture
dc.contributor.authorInitials Al Taweel, AM
dc.contributor.authorInitials Azizi, F
dc.contributor.authorInitials Sirijeerachai, G
dc.contributor.authorOrcidID
dc.contributor.authorReprintAddress Al Taweel, AM (reprint author), Dalhousie Univ, Dept Proc Engn and Appl Sci, Halifax, NS B3J 2X4, Canada.
dc.contributor.authorResearcherID
dc.contributor.authorUniversity American University of Beirut
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dc.description.citedCount
dc.description.citedTotWOSCount 0
dc.description.citedWOSCount 0
dc.format.extentCount 12
dc.identifier.coden CENPE
dc.identifier.scopusID 84886395700
dc.publisher.address PO BOX 564, 1001 LAUSANNE, SWITZERLAND
dc.relation.ispartOfISOAbbr Chem. Eng. Process.
dc.relation.ispartofPubTitle Chemical Engineering and Processing: Process Intensification
dc.relation.ispartofPubTitleAbbr Chem. Eng. Process.: Process Intensif.
dc.relation.ispartOfVolume 72
dc.source.ID WOS:000327363200006
dc.type.publication Journal
dc.subject.otherAuthKeyword Diesel desulfurization
dc.subject.otherAuthKeyword Mass transfer
dc.subject.otherAuthKeyword Phase transfer agent
dc.subject.otherAuthKeyword Process intensification
dc.subject.otherAuthKeyword Static mixer
dc.subject.otherIndex Inter-phase mass transfer
dc.subject.otherIndex Liquid-liquid dispersions
dc.subject.otherIndex Operating temperature
dc.subject.otherIndex Phase transfer agent
dc.subject.otherIndex Process intensification
dc.subject.otherIndex Specific energy consumption
dc.subject.otherIndex Static mixers
dc.subject.otherIndex Superficial velocity
dc.subject.otherIndex Desulfurization
dc.subject.otherIndex Dispersions
dc.subject.otherIndex Energy dissipation
dc.subject.otherIndex Energy utilization
dc.subject.otherIndex Mixers (machinery)
dc.subject.otherIndex Temperature
dc.subject.otherIndex Mass transfer
dc.subject.otherKeywordPlus ASSISTED OXIDATIVE DESULFURIZATION
dc.subject.otherKeywordPlus DIESEL FUEL
dc.subject.otherKeywordPlus LIQUID
dc.subject.otherKeywordPlus DISPERSION
dc.subject.otherKeywordPlus REACTORS
dc.subject.otherKeywordPlus LINE
dc.subject.otherKeywordPlus EMULSIFICATION
dc.subject.otherKeywordPlus ENHANCEMENT
dc.subject.otherKeywordPlus EXTRACTION
dc.subject.otherKeywordPlus IMPELLERS
dc.subject.otherWOS Energy and Fuels
dc.subject.otherWOS Engineering, Chemical
dc.identifier.doi http://dx.doi.org/10.1016/j.cep.2013.08.009


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