Entrainment and Maximum Vapour Flow Rate of Trays

Sinderen, A.H. Van; Wijn, E.F.; Zanting, R.W.J.

doi:10.1205/026387603321158249

Cited by 10 publications

(7 citation statements)

References 9 publications

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“…The effect of entrainment on tray efficiency has been the subject of a considerable number of papers, a modest subset of which include papers by Rhodes and Slachman, Drogaris and Lockett, Kister et al, Hoek and Zuiderweg, Lockett et al, Mohan et al, Van Sinderen et al, and Uys et al , The book of Lockett summarizes a good deal of the research up to the date of its publication.…”

Section: Incomplete History Of the Efficiency Of Distillation Traysmentioning

confidence: 99%

110th Anniversary: Column Efficiency: From Conception, through Complexity, to Simplicity

Taylor

Duss

2019

Ind. Eng. Chem. Res.

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Section: Incomplete History Of the Efficiency Of Distillation Traysmentioning

confidence: 99%

110th Anniversary: Column Efficiency: From Conception, through Complexity, to Simplicity

Taylor

Duss

2019

Ind. Eng. Chem. Res.

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“…Excessive entrainment will reduce the tray efficiency [17,18]. During this process, liquid will be carried to the above plate before enough mass and energy transfer with gas.…”

Section: Entrainmentmentioning

confidence: 99%

A distillation tray with high efficiency and excellent operating flexibility for viscous mixture separation

Zhang

Lei

et al. 2014

CI&CEQ

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Article Highlights• A tray was designed to overcome the drawback of low operating flexibility of flowguided sieve tray • Hydrodynamic and mass transfer performance of the tray was tested • It has higher efficiency and operating flexibility, lower pressure drop than flow-guided sieve tray • Its applications to separate the mixture of high viscosity proved the tray's excellent performance Abstract A flow-guided sieve-valve tray (FGS-VT) with high efficiency was designed to overcome the shortcoming of low operating flexibility of the flow-guided sieve tray. Its dimensions and geometry, as well as structure characteristics, are presented. The hydrodynamics and mass transfer performance, including dry--plate pressure drop, wet plate-pressure drop, weeping, entrainment and tray efficiency, of two types of FGS-VTs (FGS-VTs with 14 and 8 valves, respectively) and one flow-guided sieve tray were tested in an air-water-oxygen cold model experiment with a 0.6 m diameter plexiglass column. The results demonstrate that FGS-VT with 14 valves works better than FGS-VT with 8 valves, and in comparison with the flow-guided sieve tray, the flow-guided sieve--valve tray with 14 valves has higher tray efficiency, bigger operating flexibility, and lower wet-plate pressure drop (when all the valves are opened fully). Additionally, two typical applications to separate the mixture with high viscosity, solid, powder, easy-to-foam or easy self-polymerization components proved the unique advantages of FGS-VT.

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“…Van Sinderen et al [10] measured the entrainment rate for an air-water system in a 0.2 m 0.2 m tower for several different sieves and valve trays. Based on the obtained data, they developed both two-layer and three-layer theory models to predict entrainment as a function of the tray deck height and gas velocity.…”

Section: Introduction and Previous Workmentioning

confidence: 99%

Nye Tray Versus Sieve Tray: Experimental Study on Hydrodynamic Parameters

Abbasnia

Nasri

2021

Chem Eng & Technol

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The hydrodynamic parameters of a Nye tray were investigated by performing experiments in a tower with a diameter of 1.22 m. Air was used as the gas phase and water was used as the liquid phase. A number of parameters such as the dry pressure drop, the total pressure drop, the clear liquid height, the froth height, and the entrainment were measured. A tray stability factor was obtained using the amount of weeping, the clear liquid height, the dry pressure drop, and the Froude number. All experiments were repeated for the matching sieve tray under the same conditions. Ultimately, advantages and disadvantages were compared, and the results demonstrated that the Nye tray has a couple of advantages over the sieve tray, except that the sieve tray is slightly more stable.

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Entrainment and Maximum Vapour Flow Rate of Trays

Cited by 10 publications

References 9 publications

110th Anniversary: Column Efficiency: From Conception, through Complexity, to Simplicity

110th Anniversary: Column Efficiency: From Conception, through Complexity, to Simplicity

A distillation tray with high efficiency and excellent operating flexibility for viscous mixture separation

Nye Tray Versus Sieve Tray: Experimental Study on Hydrodynamic Parameters

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