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Two methods were tested: (i) an acid\u2013base reaction with fluorescein as the reaction-sensitive tracer and (ii) Fenton\u2019s reaction, with Rhodamine B as the reaction tracer. Both test-reactions were studied in stopped-flow equipment to define suitable operational conditions, namely the chemical composition of the inflow streams, the concentration of reagents and fluorophore, and suitable excitation light wavelength. The visualisation of the micromixing regions was tested in a continuous flow reactor with a T-jet geometry. A laser light sheet emitted from an Nd:YAG laser illuminated the axial section of the demonstration reactor. The mixing dynamics and the reaction course were visualised with the acid\u2013base reactive PLIF images. Fenton\u2019s reactive PLIF method showed the overall distribution of mixing and reaction regions. The main contribution of this work is benchmarking two methods with costs that enable the visualisation of micromixing regions in continuous high-throughput reactors.<\/jats:p>","DOI":"10.3390\/pr10101916","type":"journal-article","created":{"date-parts":[[2022,9,22]],"date-time":"2022-09-22T23:07:55Z","timestamp":1663888075000},"page":"1916","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Reactive PLIF Method for Characterisation of Micromixing in Continuous High-Throughput Chemical Reactors"],"prefix":"10.3390","volume":"10","author":[{"given":"Jo\u00e3o Peres","family":"Ribeiro","sequence":"first","affiliation":[{"name":"CESAM\u2014Centre for Environmental and Marine Studies-Associated Laboratory, Department of Environment and Planning, University of Aveiro, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1134-1743","authenticated-orcid":false,"given":"Margarida S. C. A.","family":"Brito","sequence":"additional","affiliation":[{"name":"LSRE-LCM\u2014Laboratory of Separation and Reaction Engineering\u2014Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"},{"name":"ALiCE\u2014Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9133-2187","authenticated-orcid":false,"given":"Ricardo Jorge","family":"Santos","sequence":"additional","affiliation":[{"name":"LSRE-LCM\u2014Laboratory of Separation and Reaction Engineering\u2014Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"},{"name":"ALiCE\u2014Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]},{"given":"Maria Isabel","family":"Nunes","sequence":"additional","affiliation":[{"name":"CESAM\u2014Centre for Environmental and Marine Studies-Associated Laboratory, Department of Environment and Planning, University of Aveiro, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"536","DOI":"10.1016\/j.cej.2009.03.041","article-title":"Experimental study of reactive mixing in a mini-scale mixer by laser-induced fluorescence technique","volume":"150","author":"Liu","year":"2009","journal-title":"Chem. Eng. J."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"823","DOI":"10.1007\/s00348-009-0769-4","article-title":"Quantifying macro-mixing and micro-mixing in a static mixer using two-tracer laser-induced fluorescence","volume":"48","author":"Lehwald","year":"2010","journal-title":"Exp. Fluids"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"178","DOI":"10.1016\/S1004-9541(12)60378-4","article-title":"Retrospect and Perspective of Micro-mixing Studies in Stirred Tanks","volume":"20","author":"Cheng","year":"2012","journal-title":"Chin. J. Chem. Eng."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"2607","DOI":"10.1016\/0009-2509(96)00122-4","article-title":"Measurement of residence time distribution by laser absorption spectroscopy","volume":"51","author":"Nadeau","year":"1996","journal-title":"Chem. Eng. Sci."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"626","DOI":"10.1002\/cjce.5450760334","article-title":"Measurement of the local intensities of segregation with the tomographical dual wavelength photometry","volume":"76","author":"Buchmann","year":"1998","journal-title":"Can. J. Chem. Eng."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1016\/S1385-8947(99)00150-3","article-title":"Tomographic Measurements of Micro-and Macromixing using the Dual Wavelength Photometry","volume":"77","author":"Buchmann","year":"2000","journal-title":"Chem. Eng. J."},{"key":"ref_7","unstructured":"Baldyga, J., and Bourne, J.R. (1999). Turbulent Mixing and Chemical Reactions, John Wiley and Sons. [1st ed.]."},{"key":"ref_8","first-page":"171","article-title":"Test Reactions to Study Efficiency of Mixing","volume":"36","year":"2015","journal-title":"Chem. Process Eng."},{"key":"ref_9","unstructured":"Dewey, C.F. (1976, January 1). Qualitative and quantitative flow field visualization utilizing laser-induced fluorescence. Proceedings of the Applications of Non-Intrusive Instrumentation in Fluid Flow Research, Saint-Louis, France."},{"key":"ref_10","unstructured":"Owen, K. (1976, January 30). Simultaneous laser measurements of instantaneous velocity and concentration in turbulent mixing flows. Proceedings of the Applications of Non-Intrusive Instrumentation in Fluid Flow Research, Saint-Louis, France."},{"key":"ref_11","unstructured":"Liu, H.T., Lin, J.T., Delisi, D.P., and Robben, F.A. (1977, January 23\u201325). Application of a fluorescence technique to dye-concentration measurements in a turbulent jet. Proceedings of the Symposium on Flow Measurement in Open Channels and Closed Conduits, Gaithersburg, MA, USA."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"217","DOI":"10.1088\/0022-3735\/20\/2\/019","article-title":"A fluorescence technique for measurement of concentration in mixing liquids","volume":"20","author":"Walker","year":"1987","journal-title":"J. Phys. E Sci. Instrum."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1007\/s00348-004-0911-2","article-title":"Instantaneous measurement of two-dimensional temperature distributions by means of two-color planar laser induced fluorescence (PLIF)","volume":"38","author":"Bruchhausen","year":"2005","journal-title":"Exp. Fluids"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"4511","DOI":"10.1016\/j.ces.2010.04.033","article-title":"Study on the reactive mixing process in an unbaffled stirred tank using planar laser-induced fluorescence (PLIF) technique","volume":"65","author":"Hu","year":"2010","journal-title":"Chem. Eng. Sci."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1007\/s003480000137","article-title":"Simultaneous DPTV\/PLIF measurements of a turbulent jet","volume":"30","author":"Webster","year":"2001","journal-title":"Exp. Fluids"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"108561","DOI":"10.1016\/j.ijheatfluidflow.2020.108561","article-title":"Experimental investigation into turbulent negatively buoyant jets using combined PIV and PLIF measurements","volume":"82","author":"Williamson","year":"2020","journal-title":"Int. J. Heat Fluid Flow"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"310","DOI":"10.1007\/s00348-003-0632-y","article-title":"Criteria for quantitative PLIF experiments using high-power lasers","volume":"35","author":"Melton","year":"2003","journal-title":"Exp. Fluids"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"82","DOI":"10.1007\/BF00944910","article-title":"Measurements of thermally stratified pipe flow using image-processing techniques","volume":"16","author":"Sakakibara","year":"1993","journal-title":"Exp. Fluids"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"243564","DOI":"10.1155\/2014\/243564","article-title":"Application of Temperature-Dependent Fluorescent Dyes to the Measurement of Millimeter Wave Absorption in Water Applied to Biomedical Experiments","volume":"2014","author":"Kuzkova","year":"2014","journal-title":"Int. J. Biomed. Imaging"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"2510","DOI":"10.1007\/s11663-020-01944-3","article-title":"Utilization of the Planar Laser-Induced Fluorescence Technique (PLIF) to Measure Temperature Fields in a Gas-Stirred Ladle","volume":"51","year":"2020","journal-title":"Metall. Mater. Trans. A"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"190","DOI":"10.1016\/j.anucene.2018.12.051","article-title":"PLIF experimental validation of a FLUENT CFD model of a coolant mixing in reactor vessel down-comer","volume":"128","author":"Eltayeb","year":"2019","journal-title":"Ann. Nucl. Energy"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"21785","DOI":"10.1021\/acs.iecr.9b05060","article-title":"Visual Study on the Interphase Mass Transfer of Immiscible Liquid\u2013Liquid System in a Stirred Tank","volume":"58","author":"Du","year":"2019","journal-title":"Ind. Eng. Chem. Res."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"116401","DOI":"10.1016\/j.ces.2020.116401","article-title":"Visual dynamical measurement of the solute-induced Marangoni effect of a growing drop with a PLIF method","volume":"233","author":"Wang","year":"2021","journal-title":"Chem. Eng. Sci."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"61","DOI":"10.1007\/s00348-019-2710-9","article-title":"Experimental investigation of mixing efficiency in particle-laden Taylor\u2013Couette flows","volume":"60","author":"Rida","year":"2019","journal-title":"Exp. Fluids"},{"key":"ref_25","first-page":"100098","article-title":"Novel evaluation method to determine the local mixing time distribution in stirred tank reactors","volume":"10","author":"Fitschen","year":"2021","journal-title":"Chem. Eng. Sci. X"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"890","DOI":"10.1016\/j.cherd.2018.01.018","article-title":"Macro- and micro-scale mixing in a shaken bioreactor for fluids of high viscosity","volume":"132","author":"Rodriguez","year":"2018","journal-title":"Chem. Eng. Res. Des."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"103558","DOI":"10.1016\/j.pnucene.2020.103558","article-title":"The study of the influence of slug density on the mixing performance in the reactor vessel, using PLIF experiment and FLUENT simulation","volume":"131","author":"Eltayeb","year":"2021","journal-title":"Prog. Nucl. Energy"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"1177","DOI":"10.1016\/j.cej.2018.10.156","article-title":"Numerical simulation of reactive mixing process in a stirred reactor with the DQMOM-IEM model","volume":"360","author":"Duan","year":"2019","journal-title":"Chem. Eng. J."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"190","DOI":"10.1016\/j.cherd.2019.08.016","article-title":"Using PLIF\/PIV techniques to investigate the reactive mixing in stirred tank reactors with Rushton and pitched blade turbines","volume":"151","author":"Taghavi","year":"2019","journal-title":"Chem. Eng. Res. Des."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"524","DOI":"10.1016\/j.cherd.2011.08.021","article-title":"Visualization of reactive and non-reactive mixing processes in a stirred tank using planar laser induced fluorescence (PLIF) technique","volume":"90","author":"Hu","year":"2012","journal-title":"Chem. Eng. Res. Des."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"471","DOI":"10.1021\/op020074q","article-title":"Mixing and the Selectivity of Chemical Reactions","volume":"7","author":"Bourne","year":"2003","journal-title":"Process Res. Dev."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"1761","DOI":"10.1021\/ie00105a004","article-title":"Kinetics of the diazo coupling between 1-naphthol and diazotized sulfanilic acid","volume":"29","author":"Bourne","year":"1990","journal-title":"Ind. Eng. Chem. Res."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"276","DOI":"10.1016\/j.ces.2012.02.054","article-title":"Micromixing assessment of confined impinging jet mixers used in RIM","volume":"74","author":"Nunes","year":"2012","journal-title":"Chem. Eng. Sci."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"307","DOI":"10.1016\/0255-2701(92)87004-Z","article-title":"Barium sulfate precipitation as model reaction for segregation studies at pilot scale","volume":"31","author":"Meyer","year":"1992","journal-title":"Chem. Eng. Process."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"719","DOI":"10.1051\/jcp\/1982790719","article-title":"Cin\u00e9tique macroscopique de la pr\u00e9cipitation du sulfate de baryum en pr\u00e9sence d\u2019EDTA","volume":"79","author":"Barthole","year":"1982","journal-title":"J. Chim. Phys."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"1538","DOI":"10.1016\/0009-2509(77)80255-8","article-title":"Mixing Effects During the Bromination of 1,3,5-trimethoxybenzene","volume":"32","author":"Bourne","year":"1977","journal-title":"Chem. Eng. Sci."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"1176","DOI":"10.1002\/ceat.200800213","article-title":"Micromixer Characterization with Competitive-Consecutive Bromination of 1,3,5-Trimethoxybenzene","volume":"31","author":"Hecht","year":"2008","journal-title":"Chem. Eng. Technol."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"673","DOI":"10.1007\/s00348-006-0184-z","article-title":"A colorimetric reaction to quantify fluid mixing","volume":"41","author":"Oates","year":"2006","journal-title":"Exp. Fluids"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"6283","DOI":"10.1021\/es900854r","article-title":"Enhanced Mixing and Plume Containment in Porous Media under Time-Dependent Oscillatory Flow","volume":"43","author":"Zhang","year":"2009","journal-title":"Environ. Sci. Technol."},{"key":"ref_40","unstructured":"Akiti, O. (2000). Turbulent Mixing and Chemical Reaction in Baffled Stirred Tank Reactors: A Comparison between Experiments and a Novel Micromixing-Based Computational Fluid Dynamics Model, New Jersey Institute of Technology."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"895","DOI":"10.1205\/02638760152721109","article-title":"Effects of Mixing on Parallel Chemical Reactions in a Continuous-Flow Stirred-Tank Reactor","volume":"79","author":"Baldyga","year":"2001","journal-title":"Chem. Eng. Res. Des."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"457","DOI":"10.1016\/S0009-2509(96)00430-7","article-title":"Interaction between chemical reactions and mixing on various scales","volume":"52","author":"Bourne","year":"1997","journal-title":"Chem. Eng. Sci."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"41","DOI":"10.1021\/ie00025a007","article-title":"Investigation of micromixing in stirred tank reactors using parallel reactions","volume":"33","author":"Bourne","year":"1994","journal-title":"Ind. Eng. Chem. Res."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"907","DOI":"10.1016\/0009-2509(90)85013-4","article-title":"The effect of micromixing on parallel reactions","volume":"45","author":"Baldyga","year":"1990","journal-title":"Chem. Eng. Sci."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"343","DOI":"10.1139\/v65-046","article-title":"Relative reactivity of toluene-benzene in nitronium tetrafluoroborate nitration\u2014Limitation of the competitive method of rate determination in fast reactions","volume":"43","author":"Tolgyesi","year":"1964","journal-title":"Can. J. Chem."},{"key":"ref_46","unstructured":"Baldyga, J., Jasinska, M., Trendowska, J., Tadeusiak, W., Cooke, M., and Kowalski, A. (2022, June 28). Application of Test Reactions to Study Micromixing and Mass Transfer in Chemical Apparatus. Available online: https:\/\/suw.biblos.pk.edu.pl\/resourceDetailsBPP&rId=14358."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"5053","DOI":"10.1016\/0009-2509(96)00270-9","article-title":"A new parallel competing reaction system for assessing micromixing efficiency\u2014Experimental approach","volume":"51","author":"Fournier","year":"1996","journal-title":"Chem. Eng. Sci."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"4233","DOI":"10.1016\/S0009-2509(00)00068-3","article-title":"Characterisation of micromixing efficiency by the iodide\u2013iodate reaction system. Part I: Experimental procedure","volume":"55","author":"Guichardon","year":"2000","journal-title":"Chem. Eng. Sci."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1016\/j.cherd.2013.07.013","article-title":"Static mixers: Mechanisms, applications, and characterization methods\u2014A review","volume":"92","author":"Ghanem","year":"2014","journal-title":"Chem. Eng. Res. Des."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"641","DOI":"10.1002\/cjce.5450760336","article-title":"Non-isothermal micromixing in turbulent liquids: Theory and experiment","volume":"76","author":"Baldyga","year":"1998","journal-title":"Can. J. Chem. Eng."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"4649","DOI":"10.1016\/j.ces.2007.10.036","article-title":"Measurements of micro- and macromixing in liquid mixtures of reacting components using two-colour laser induced fluorescence","volume":"63","author":"Faes","year":"2008","journal-title":"Chem. Eng. Sci."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"1523","DOI":"10.1016\/j.ces.2004.01.015","article-title":"Two-colour laser induced fluorescence for the quantification of micro- and macromixing in stirred vessels","volume":"59","author":"Kling","year":"2004","journal-title":"Chem. Eng. Sci."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"037101","DOI":"10.1063\/1.3078247","article-title":"Quantifying mixing using equilibrium reactions","volume":"21","author":"Wheat","year":"2009","journal-title":"Phys. Fluids"},{"key":"ref_54","unstructured":"Lehwald, A., Jenrich, S., Th\u00e9venin, D., and Zahrinque, K. (1992, January 20\u201323). Experimental investigation of macro- and micro-mixing in a reactive turbulent channel flow. Proceedings of the 16th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal."},{"key":"ref_55","unstructured":"Lehwald, A., Th\u00e9venin, D., and Z\u00e4hringer, K. (2010, January 5\u20138). Simultaneous two-tracer-Laser-induced fluorescence and particle image velocimetry for the investigation of macro-and micro-mixing in a static mixer. Proceedings of the 15th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"876","DOI":"10.1205\/02638760152721073","article-title":"Characterization of Mixing in a Stirred Tank by Planar Laser Induced Fluorescence (P.L.I.F.)","volume":"79","author":"Fall","year":"2001","journal-title":"Chem. Eng. Res. Des."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"1635","DOI":"10.1093\/clinchem\/25.9.1635","article-title":"Flow-injection analysis with chemiluminescence detection","volume":"25","author":"Rule","year":"1979","journal-title":"Clin. Chem."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"511","DOI":"10.1016\/S1386-1425(02)00188-9","article-title":"A study of peroxyoxalate-chemiluminescence of acriflavine","volume":"59","author":"Shamsipur","year":"2003","journal-title":"Spectrochim. Acta A Mol. Biomol. Spectrosc. Spectrochim. Acta A"},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1016\/S0003-2670(99)00626-1","article-title":"Very fast peroxyoxalate chemiluminescence","volume":"400","author":"Jonsson","year":"1999","journal-title":"Anal. Chim. Acta"},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"382","DOI":"10.1007\/s003480050125","article-title":"PLIF measurements in aqueous flows using the Nd:YAG laser","volume":"23","author":"Karasso","year":"1997","journal-title":"Exp. Fluids"},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"357","DOI":"10.1205\/026387604322870462","article-title":"Mixing of a Jet in a Pipe","volume":"82","author":"Mortensen","year":"2004","journal-title":"Chem. Eng. Res. Des."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"388","DOI":"10.1016\/j.ces.2012.02.010","article-title":"Experimental study of flow regime and mixing in T-jets mixers","volume":"73","author":"Sultan","year":"2012","journal-title":"Chem. Eng. Sci."},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1016\/j.compchemeng.2007.08.001","article-title":"Computation of scales and quality of mixing in a T-shaped microreactor","volume":"32","author":"Bothe","year":"2008","journal-title":"Comput. Chem. Eng."},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"S219","DOI":"10.1016\/j.cej.2007.07.048","article-title":"Numerical and experimental investigations of liquid mixing in T-type micromixers","volume":"135","author":"Soleymani","year":"2008","journal-title":"Chem. Eng. J."},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"414","DOI":"10.1016\/j.cej.2018.01.108","article-title":"Steady and unsteady regimes in a T-shaped micro-mixer: Synergic experimental and numerical investigation","volume":"341","author":"Mariotti","year":"2018","journal-title":"Chem. Eng. J."},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"5291","DOI":"10.1016\/j.ces.2008.07.002","article-title":"Dimensionless number for identification of flow patterns inside a T-micromixer","volume":"63","author":"Soleymani","year":"2008","journal-title":"Chem. Eng. Sci."},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"1561","DOI":"10.1016\/j.cej.2018.10.112","article-title":"Investigation of three-dimensional flow regime and mixing characteristic in T-jet reactor","volume":"358","author":"Zhang","year":"2019","journal-title":"Chem. Eng. J."},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"323","DOI":"10.1002\/ceat.201200141","article-title":"High-Throughput T-Jets Mixers: An Innovative Scale-Up Concept","volume":"36","author":"Sultan","year":"2013","journal-title":"Chem. Eng. Technol."},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s003480050202","article-title":"Dual emission laser induced fluorescence for direct planar scalar behavior measurements","volume":"25","author":"Coppeta","year":"1998","journal-title":"Exp. Fluids"},{"key":"ref_70","unstructured":"Koochesfahani, M.M. (1984). Experiments on Turbulent Mixing and Chemical Reactions in a Liquid Mixing Layer, California Institute of Technology."},{"key":"ref_71","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1017\/S0022112086000812","article-title":"Mixing and chemical reactions in a turbulent liquid mixing layer","volume":"170","author":"Koochesfahani","year":"1986","journal-title":"J. Fluid Mech."},{"key":"ref_72","first-page":"107","article-title":"The influence of some chemical and physical parameters of water samples on spectral determinations of fluorescent dyes","volume":"25","author":"Kola","year":"2006","journal-title":"Maced. J. Chem. Chem. Eng."},{"key":"ref_73","doi-asserted-by":"crossref","first-page":"937","DOI":"10.1002\/ceat.201200678","article-title":"State of the Art of Mini\/Micro Jet Reactors","volume":"36","author":"Santos","year":"2013","journal-title":"Chem. Eng. Technol."},{"key":"ref_74","doi-asserted-by":"crossref","first-page":"2968","DOI":"10.1016\/j.ces.2005.11.029","article-title":"Experimental investigation of liquid\u2013liquid mixing in T-shaped micro-mixers using \u03bc-LIF and \u03bc-PIV","volume":"61","author":"Hoffmann","year":"2006","journal-title":"Chem. Eng. Sci."},{"key":"ref_75","doi-asserted-by":"crossref","first-page":"119","DOI":"10.1002\/ceat.201700684","article-title":"3D Mixing Dynamics in T-Jet Mixers","volume":"42","author":"Sultan","year":"2019","journal-title":"Chem. Eng. Technol."},{"key":"ref_76","doi-asserted-by":"crossref","first-page":"851","DOI":"10.1007\/s00348-008-0496-2","article-title":"Planar laser induced fluorescence in aqueous flows","volume":"44","author":"Crimaldi","year":"2008","journal-title":"Exp. Fluids"},{"key":"ref_77","doi-asserted-by":"crossref","first-page":"877","DOI":"10.1016\/0009-2509(79)85145-3","article-title":"A lamellar model for analysis of liquid-liquid mixing","volume":"34","author":"Ottino","year":"1979","journal-title":"Chem. Eng. Sci."}],"container-title":["Processes"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2227-9717\/10\/10\/1916\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:37:04Z","timestamp":1760143024000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2227-9717\/10\/10\/1916"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,9,22]]},"references-count":77,"journal-issue":{"issue":"10","published-online":{"date-parts":[[2022,10]]}},"alternative-id":["pr10101916"],"URL":"https:\/\/doi.org\/10.3390\/pr10101916","relation":{},"ISSN":["2227-9717"],"issn-type":[{"type":"electronic","value":"2227-9717"}],"subject":[],"published":{"date-parts":[[2022,9,22]]}}}