Packing Characterization: Mass Transfer Properties

Wang, Chao; Perry, Micah; Rochelle, Gary T.; Seibert, A. Frank

doi:10.1016/j.egypro.2012.06.037

Cited by 28 publications

(12 citation statements)

References 7 publications

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“…Sıvı fazdaki anlık reaksiyon sebebiyle gaz fazından sıvı fazına aktarılan bileşenin ara yüzeydeki mol kesri ihmal edilebilir [18,36,37]. Bu nedenle kütle transfer hızı, gaz tarafı kütle transfer direnci tarafından kontrol edilir [19,38,39]. Bu…”

Section: Gaz Faz Hacim Bazlı Fiziksel Bireysel Kütle Transfer Katsayısı (Gas Side Based Physical Volumetric Individual Mass Transfer Coefunclassified

Yapılı dolgulu kolonda sıvı ve gaz fazı kütle transfer katsayıları ve ara yüzey alanı

Çelikçi

Uysal

2020

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi

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 Structured packing column design and manufacturing  Hydrodynamic characterization of structured packing column  Mass transfer characterization of structured packing columnThis study involves characterization studies of a new structured packed column, designed and manufactured by our own facilities, including hydrodynamics and mass transfer coefficients. Firstly, the maximum and minimum limits of the gas and liquid velocities that can be employed in the column were determined by specifying the loading and flooding points through pressure drop measurements. The individual volumetric physical mass transfer coefficients of the liquid and gas side were obtained experimentally in these ranges.Overall physical volumetric mass transfer coefficients were estimated for CO2-water system according to the two-resistance theory. The experiments were also performed for chemical absorption of CO2 into NaOH solution system. Overall chemical volumetric mass transfer coefficients, Hatta number, enhancement factor and the reaction regime were determined. Finally, the effective interfacial area values were also determined at different gas and liquid velocities. Figure A. Geometry of structured packings and gas side chemical overall volumetric mass transfer coefficients at different gas and liquid velocitiesPurpose: The primary aim was to provide effective carbon dioxide removal from gas streams. A new structured packed column was designed and manufactured with our own capabilities for this purpose and its basic characteristics for hydrodynamics and mass transfer were investigated. Theory and Methods:Hydrodynamic studies included the dry and wet pressure drop experiments. O2 desorption from water and SO2 absorption into NaOH solution methods were used for determining the liquid and gas side individual physical volumetric mass transfer coefficient experiments, respectively. Chemical absorption of CO2 into NaOH solution was studied for determining the overall chemical volumetric mass transfer coefficients, reaction regimes and effective interfacial area at different gas and liquid velocities. Results:Operable ranges for liquid and gas velocities were identified as 0.002-0.0047 [m/s] and 0.07-0.68 [m/s], respectively. Individual and overall mass transfer coefficients and effective interfacial area values were obtained experimentally. Absorption of CO2 into NaOH solution resulted in the fast pseudo first-order regime which was verified by checking the criteria of E≅Ha and Ha>2. Also, the infinite enhancement factor was calculated using both the film and the penetration mass transfer theories. An effective area as high as 225 m 2 /m 3 was achieved. Conclusion:Hydrodynamic and mass transfer characterization of a new genuine structured packing were made successfully. It was concluded that an absorption column with such a packing can be used effectively for carbon dioxide capturing at the source of emission.

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Section: Gaz Faz Hacim Bazlı Fiziksel Bireysel Kütle Transfer Katsayısı (Gas Side Based Physical Volumetric Individual Mass Transfer Coefunclassified

Yapılı dolgulu kolonda sıvı ve gaz fazı kütle transfer katsayıları ve ara yüzey alanı

Çelikçi

Uysal

2020

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi

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“…Several authors 97,99,146 introduced the gas into the water stream before the column from a gas cylinder, some 3,39,147 saturated the water in a tank before the experiments, while others used an absorption column. 143,144 Wang et al 55 simply mixed toluene and water in a tank at the start of the experiment since their solute is a liquid at room temperature, and then continuously added a toluene make-up into the tank, because their liquid phase was recirculated.…”

Section: Desorptionmentioning

confidence: 99%

Absorption methods for the determination of mass transfer parameters of packing internals: A literature review

et al. 2017

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Methods for the determination of mass-transfer coefficients and effective interfacial areas in packed absorption columns are reviewed. For each parameter, the methods are grouped into categories on the basis of their physical principle; the chemical systems used, experimental protocol, and the advantages and inconveniences are discussed. The treatment of end effects, the influence of packed bed height, and the recent efforts in standardization of measurement methods are also treated. The aim of the review is to give a broad overview of the methods used in literature in the last eight decades , some of which might be reconsidered in the light of modern measurement techniques and to evaluate them in relation to precision, practicality and hazardousness thereby to facilitate the search for reliable, precise, and convenient experimental practices.

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“…6 compares the simulations and experimental data for the mass transfer efficiency of PACK-1300Y and reveals the values of HETP of PACK-1300Y versus the gas F-factor. The expected trends of HETP for structured packings studied by several researchers [18,26,35,[58][59][60][61][62] can be clearly observed from the curves. Also, by gradual increasing the HETP from 5 to 20 cm an increment of the F-factor from 0.4 to 2.6 m s -1 (kg m -3 ) 0.5 is observed.…”

Section: Wet Pressure Dropmentioning

confidence: 74%

Characterization of a New Structured Packing by Computational Fluid Dynamics

et al. 2020

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The novel wire gauze structured packing PACK-1300Y with high specific surface area was characterized by computational fluid dynamics. The main features of PACK-1300Y were investigated including the dry and wet pressure drop as well as the height equivalent to a theoretical plate (HETP). Moreover, the flow structure of this packing was described via numerical simulations. To evaluate the amount of HETP and dry and wet pressure drop, 3D computational fluid dynamic modeling with respect to the Eulerian-Eulerian multiphase approach was applied. The average relative errors were determined between the findings achieved from computational fluid dynamic simulation and experimental findings for mass transfer efficiency and wet and dry pressure drop, respectively.

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Packing Characterization: Mass Transfer Properties

Cited by 28 publications

References 7 publications

Yapılı dolgulu kolonda sıvı ve gaz fazı kütle transfer katsayıları ve ara yüzey alanı

Yapılı dolgulu kolonda sıvı ve gaz fazı kütle transfer katsayıları ve ara yüzey alanı

Absorption methods for the determination of mass transfer parameters of packing internals: A literature review

Characterization of a New Structured Packing by Computational Fluid Dynamics

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