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OP-I-29MODELING OF RESIDENCE TIME DISTRIBUTION INCORNING ® ADVANCED-FLOW TM REACTORWoehl P., Lavric E.D., Kuandykov L.L. 1 , Chivilikhin M.S. 1Corning SAS, Corning European Technology Center, 7 bis Avenue de Valvins,77210 Avon, France;1 Corning SNG, Corning Scientific Center 26 A Shatelena str.194021, St.-Petersburg,Russia; tel +7 812 329 2081, fax: +7 812 329 2061; e-mail: chivilikms@corning.comCorning ® Advanced-Flow reactor is a high-throughput, easily scalable reactorthat can be customized to specific needs, enabling a cost-effective solution for asingle reaction or a wide portfolio of reactions. The key component of the system is aspecialty glass fluidic module. The module's structure, design and surface technologyenable controlled, continuous and efficient streaming together of chemicals, resultingin excellent heat exchange performance and mixing quality. Glass fluidic modules arecombined into specially engineered reactors that are customized to meet a widerange of chemical processing challenges. They are capable of managing multiple unitoperations, and can be easily scaled to desired levels of production.Contribution to numerical characterization of mixing in a reactor is provided by thequantified residence time distribution (RTD), thus allowing the process engineer tobetter understand mixing performance of the reactor. Many reactors are mixinglimitedand/or mass-transfer limited and micro-mixing can be the critical element incontrast to RTD which addresses the macro-mixing.Experimental studies on RTD in the fluidic modules used as components ofCorning ® Advanced-Flow reactors shown plug-flow like behaviour of these devices(Figure 1).RTD, which provides a quantitative way to describe the time a unit volume of fluidspends in the reactor [1,2], has been analyzed by a series of numerical experimentswith a full 3D Computational Fluid Dynamic model using FLUENT software. Thedeveloped approach includes two steps: steady-state calculations of the flow velocitypattern, and transient calculations of RTD [3]. In the transient calculation, the flow ofa “tracer” through the fluidic module was monitored using previously computedvelocity fields.The RTD normalized step function (F) has been computed using predicted tracerconcentration at the fluidic module outlet, like in experimental studies. The goodagreement between CFD results and RTD experimental data validated modeling92