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Just Because It's Small Doesn't Mean It's Well Mixed: Ensuring Good Mixing in Mesoscale Reactors

التفاصيل البيبلوغرافية
العنوان: Just Because It's Small Doesn't Mean It's Well Mixed: Ensuring Good Mixing in Mesoscale Reactors
المؤلفون: E. H. Stitt, M. J. H. Simmons,† and, J.F. Hall, Mostafa Barigou
المصدر: Industrial & Engineering Chemistry Research. 44:9695-9704
بيانات النشر: American Chemical Society (ACS), 2005.
سنة النشر: 2005
مصطلحات موضوعية: Materials science, Particle image velocimetry, General Chemical Engineering, Mesoscale meteorology, Constant power, Baffle, General Chemistry, Mechanics, Flow pattern, Turbine, Industrial and Manufacturing Engineering, Mixing (physics), Sparging
الوصف: The advent of high throughput experimentation (HTE) for molecular discovery and rapid screening of new catalyst formulations has led to interest in the mixing characteristics of small stirred vessels at scales below those previously studied. In this paper, particle image velocimetry (PIV) is used to obtain macromixing characteristics for single phase fluids of two different viscosities (μ = 0.001 and 0.433 Pa s) and for two-phase air−water mixtures in a 45 mm diameter vessel using a 6 blade up-pumping pitched-blade turbine. Eccentric agitation is examined as a means of improving the mixing performance since the vessels are used without baffles, and the global circulation of the fluid was comparable with that of a conventional baffled configuration for single-phase mixing at a constant power input per unit mass (0.168−5.5 W kg-1). For high viscosity fluids, the characteristic flow patterns resembled those for a radial device. For two-phase mixing at gassing rates of 0.25 and 0.5 vvm, two sparger configurat...
تدمد: 1520-5045
0888-5885
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::249750e0d35562c2046c44143096eab2
https://doi.org/10.1021/ie050224w
رقم الأكسشن: edsair.doi...........249750e0d35562c2046c44143096eab2
قاعدة البيانات: OpenAIRE
الوصف
تدمد:15205045
08885885