Results 11 to 20 of about 81,208 (258)
Hydrodynamic Properties Investigation of Ebullated Bed Reactor Using Non-Newtonian Liquid [PDF]
Engineering and Technology Journal, 2022 The importance of using EBR has been renewed recently due to the sharp increase in heavy feedstocks sent to refineries and the hydrocracking process. Most of these feedstocks have a non-Newtonian behavior.
Zahraa Hassan +3 more
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Analysis of the hydrodynamic parameters of external loop air lift bioreactors [PDF]
Hemijska Industrija, 2004 In this study we analyzed the effects of the hydrodynamic conditions and properties of the working fluid on the operation of external loop air lift bioreactors. In particular, the effects of design and operating parameters (e.g.
Milivojević Milan M. +4 more
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Engineering Proceedings, 2023 The gas–liquid mixing phenomenon that occurs in a mixing tank containing a non-Newtonian fluid is an important process in many industrial applications, such as chemical and biochemical processing.
Ali Rahimzadeh +2 more
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Production and Solubility of Ectoine: Biochemical and Molecular Dynamics Simulation Studies [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2020 In this study, ectoine is produced by Streptomyces. sp IBRC-M PTCC 10615. Fermentation parameters such as flow regime, gas hold up, mass transfer coefficient, and mixing time were optimized by statistical analysis. Streptomyces.
Soheil Rezazadeh Mofradnia +6 more
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Effects of air-lift reactor dimensions on its hydrodinamic characteristics [PDF]
Hemijska Industrija, 2010 In this study the hydrodynamic characteristics of the external loop airlift bioreactors were investigated. The influence of reactor height and solid particles concentration on the mean liquid circulation velocity was examined.
Milivojević Milan M. +2 more
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Journal of King Saud University: Engineering Sciences, 2003 The influence of the recently identified hydrodynamic flow regimes on the prediction of gas hold-up and liquid circulation velocity in airlift reactors has been investigated. Some hydrodynamic models based on momentum balance are considered.
M.E.E. Abashar
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A Comparative Study of Methods for Determining Gas Hold-Up Time [PDF]
Journal of Chromatographic Science, 2006 It has been proved mathematically that there exists an identity between the various published methods for determining the hold-up times in gas chromatography. All of these methods are based on the equation: ln t'(R) = ln (t(R) - t(M)) = a + bZ, where t(R), t'(R), and t(M) are retention times, adjusted retention times, and hold-up times, respectively; a
N S, Wu, G S, Wu, M Y, Wu
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Experimental Study and Theoretical Model Described Transition Regime Parameters and Hydrodynamic Parameters in a Gas-Liquid Dispersion Column [PDF]
Engineering and Technology Journal, 2010 Experimental study of total gas hold-up, bubble diameters and rise velocity ofthe swarm of bubbles, and regime transition point in dispersion column. Theexperimental runs were carried out in two perspex columns of 7.5 cm and 15 cm insidediameter.
Fadi Z. Hanna
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Dispersed Gas Hold Up in Gas-Liquid Mixing
Chemical engineering, 1964 通気撹拌におけるガス滞留率の正確な測定方法として従来の試みとは異なるトレーサーガス混入法を提案し, 標準平羽根ターピン邪魔板付撹拌装置の幾何学的に相似な一連および形状の異なる2, 3の標準翼につき滞留率を実測しこれと通気量, 撹拌速度, 槽径などとの相関関係を求め, また撹拌所要動力との関係も明らかにした。
Yamaguchi, Iwao, Nagata, Shinji
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Chemical and Process Engineering, 2017 The results of numerical computations concerning momentum transfer processes in an air – biophase – liquid system agitated in a bioreactor equipped with baffles and a Smith turbine (CD 6 impeller) are presented in this paper.
Musiał Monika +2 more
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