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Roshdi S, Kasiri N, Ivakpour J, Hashemabadi SH. Investigation of open hole area effects on the air dynamic pressure, Froude number, and hydraulics of distillation trays using CFD. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02623-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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2
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Abbasnia S, Nasri Z, Shafieyoun V, Golzarijalal M. Nye tray vs sieve tray: A comparison based on computational fluid dynamics and tray efficiency. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sadegh Abbasnia
- Department of Chemical Technologies Iranian Research Organization for Science and Technology (IROST) Tehran Iran
| | - Zarrin Nasri
- Department of Chemical Technologies Iranian Research Organization for Science and Technology (IROST) Tehran Iran
| | - Vali Shafieyoun
- Ahwaz Faculty of Petroleum, Petroleum University of Technology Ahwaz Iran
| | - Mohammad Golzarijalal
- Department of Chemical Engineering University of Melbourne Parkville Victoria Australia
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Wang H, Tang M, Wang D, Liu Y, Zhang Y, Hu B, Wang R, Zhang S. Flow characteristics of blade unit of a tridimensional rotational flow sieve tray under concurrent gas–liquid flow. AIChE J 2020. [DOI: 10.1002/aic.16454] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hongkai Wang
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin China
| | - Meng Tang
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin China
- School of Mechanical EngineeringHebei University of Technology Tianjin China
| | - Dewu Wang
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin China
| | - Yan Liu
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin China
| | - Yishuo Zhang
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin China
| | - Baisong Hu
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin China
| | - Ruojin Wang
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin China
| | - Shaofeng Zhang
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin China
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4
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Lavasani MS, Rahimi R, Zivdar M, Kalbassi M. CFD Modeling to Predict Mass Transfer in Multicomponent Mixtures. CHEMICAL PRODUCT AND PROCESS MODELING 2019. [DOI: 10.1515/cppm-2019-0079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A novel three-dimensional computational fluid dynamics mass transfer (CMT) model in Eulerian–Eulerian frame work is deploys for investigating the concentration profiles, and trays efficiencies in multicomponent distillation columns. The proposed model is based on Maxwell Stefan equations, and CFD was employed as a powerful tool to model the hydrodynamics and mass transfer. The two phases are modelled as two interpenetrating phases with interphase momentum, heat and mass transfer. The Closure model is developed for mass interphase transfer rate in ternary mixtures. The predictability of the mass transfer behaviours of multicomponent can result in a more efficient and predictable design of distillation trays. Two non-ideal ternary mixtures were studied. The tray geometry and operating conditions are based on the experimental works of Kalbassi and the composition profiles, tray efficiencies, and point efficiencies of mixtures were presented. The obtained results were confirmed by the experimental data. The results indicate that the values of individual component tray efficiencies and point efficiencies for these multicomponent systems were considerably different which confirm the interactive nature of the mass transfer in multicomponent mixtures. These mixtures also illustrated different point efficiencies across the tray because of the composition dependency of these mixtures. The average relative error for the prediction of efficiencies is about 8 %, which indicates the accuracy of the model.
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Wu Q, Gu M, Du Y, Zeng H. Synergistic removal of dust using the wet flue gas desulfurization systems. ROYAL SOCIETY OPEN SCIENCE 2019; 6:181696. [PMID: 31417692 PMCID: PMC6689652 DOI: 10.1098/rsos.181696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 05/23/2019] [Indexed: 06/10/2023]
Abstract
Coal is still a major energy source, mostly used in power plants. However, the coal combustion emits harmful SO2 and fly ash. Wet flue gas desulfurization (WFGD) technology is extensively used to control SO2 emissions in power plants. However, only limited studies have investigated the synergistic dust removal by the WFGD system. Spray scrubbers and sieve-tray spray scrubbers are often used in WFGD systems to improve the SO2 removal efficiency. In this study, the synergistic dust removal of WFGD systems for a spray scrubber and a sieve-tray spray scrubber was investigated using the experimental and modelling approaches, respectively. For the spray scrubber, the influence of parameters, including dust particle diameters and inlet concentrations of dust particles, and the flow rates of flue gas and slurry of limestone/gypsum on the dust removal efficiency, was investigated. For the sieve-tray spray scrubber, the influence of parameters such as the pore diameter and porosity of sieve trays on the dust removal efficiency was examined. The study found that the dust removal efficiency in the sieve-tray spray scrubber was approximately 1.1-10.6% higher than that of the spray scrubber for the same experimental conditions. Based on the parameters investigated and geometric parameters of a scrubber, a novel droplets swarm model for dust removal efficiency was developed from the single droplet model. The enhanced dust removal efficiency of sieve tray was expressed by introducing a strength coefficient to an inertial collision model. The dust removal efficiency model for the sieve-tray spray scrubber was developed by combining the droplets swarm model for the spray scrubber with the modified inertial collision model for the sieve tray. The results simulated using both models are consistent with the experimental data obtained.
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Affiliation(s)
- Qirong Wu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, College of Resources and Environmental Science, Chongqing University, Chongqing 400044, People's Republic of China
- SPIC (State Power Investment Corporation) Yuanda Environmental Protection Engineering Co., Ltd., Chongqing 400012, People's Republic of China
| | - Min Gu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, College of Resources and Environmental Science, Chongqing University, Chongqing 400044, People's Republic of China
| | - Yungui Du
- SPIC (State Power Investment Corporation) Yuanda Environmental Protection Engineering Co., Ltd., Chongqing 400012, People's Republic of China
| | - Hanxiao Zeng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, College of Resources and Environmental Science, Chongqing University, Chongqing 400044, People's Republic of China
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Tang M, Zhang S, Wang D, Liu Y, zhang Y, Wang L, Liu C. CFD simulation of gas flow field distribution and design optimization of the tridimensional rotational flow sieve tray with different structural parameters. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.01.049] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Abbasnia S, Nasri Z, Najafi M. Comparison of the mass transfer and efficiency of Nye tray and sieve tray by computational fluid dynamics. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.01.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Zhao H, Li Q, Yu G, Dai C, Lei Z. Performance analysis and quantitative design of a flow‐guiding sieve tray by computational fluid dynamics. AIChE J 2019. [DOI: 10.1002/aic.16563] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hongkang Zhao
- State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology Beijing China
| | - Qunsheng Li
- State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology Beijing China
| | - Gangqiang Yu
- State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology Beijing China
| | - Chengna Dai
- State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology Beijing China
| | - Zhigang Lei
- State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology Beijing China
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Tang M, Zhang S, Wang D, Liu Y, Wang L, Liu C. Experimental study and modeling development of pressure drop in concurrent gas-liquid columns with a tridimensional rotational flow sieve tray. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.06.080] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Liu H, Jia J, Liu N, Hu X, Zhou X. Effect of material feed rate on sieving performance of vibrating screen for batch mixing equipment. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.07.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Assessment of separation efficiency modeling and visualization approaches pertaining to flow and mixing patterns on distillation trays. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.03.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Shenastaghi FK, Roshdi S, Kasiri N, Hasan Khanof M. CFD simulation and experimental validation of bubble cap tray hydrodynamics. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.09.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Jama MA, Nikiforow K, Qureshi MS, Alopaeus V. CFD analysis of laboratory scale phase equilibrium cell operation. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2017; 88:105110. [PMID: 29092476 DOI: 10.1063/1.4993317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
UNLABELLED For the modeling of multiphase chemical reactors or separation processes, it is essential to predict accurately chemical equilibrium data, such as vapor-liquid or liquid-liquid equilibria [M. Šoóš et al., Chem. Eng. PROCESS Process Intensif. 42(4), 273-284 (2003)]. The instruments used in these experiments are typically designed based on previous experiences, and their operation verified based on known equilibria of standard components. However, mass transfer limitations with different chemical systems may be very different, potentially falsifying the measured equilibrium compositions. In this work, computational fluid dynamics is utilized to design and analyze laboratory scale experimental gas-liquid equilibrium cell for the first time to augment the traditional analysis based on plug flow assumption. Two-phase dilutor cell, used for measuring limiting activity coefficients at infinite dilution, is used as a test case for the analysis. The Lagrangian discrete model is used to track each bubble and to study the residence time distribution of the carrier gas bubbles in the dilutor cell. This analysis is necessary to assess whether the gas leaving the cell is in equilibrium with the liquid, as required in traditional analysis of such apparatus. Mass transfer for six different bio-oil compounds is calculated to determine the approach equilibrium concentration. Also, residence times assuming plug flow and ideal mixing are used as reference cases to evaluate the influence of mixing on the approach to equilibrium in the dilutor. Results show that the model can be used to predict the dilutor operating conditions for which each of the studied gas-liquid systems reaches equilibrium.
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Affiliation(s)
- Mohamed Ali Jama
- School of Chemical Technology, Department of Biotechnology and Chemical Technology, Research Group of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
| | - Kaj Nikiforow
- School of Chemical Technology, Department of Biotechnology and Chemical Technology, Research Group of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
| | - Muhammad Saad Qureshi
- School of Chemical Technology, Department of Biotechnology and Chemical Technology, Research Group of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
| | - Ville Alopaeus
- School of Chemical Technology, Department of Biotechnology and Chemical Technology, Research Group of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
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Zhang L, Li Z, Yang N, Jiang B, Cong H, Zhang Z. Hydrodynamics and mass transfer performance of vapor–liquid flow of orthogonal wave tray column. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Li X, Cong H, Gao X, Li H. Investigation and simulation on the performance of the elliptical tray placed in the unconventional “s” shape distillation column. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2015.10.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Computational fluid dynamics and experimental validation of hydrodynamics of ripple tray. J Taiwan Inst Chem Eng 2015. [DOI: 10.1016/j.jtice.2015.02.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Hu XQ, Fan LT, Yuan XG, Yu KT, Zeng AW, Kalbassi MA. Model-Based Approach To Predict and Control Hydraulic Gradient on Slotted Sieve Trays. Ind Eng Chem Res 2014. [DOI: 10.1021/ie403883z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- X. Q. Hu
- State
Key Laboratory of Chemical Engineering and School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, China
| | - L. T. Fan
- State
Key Laboratory of Chemical Engineering and School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, China
| | - X. G. Yuan
- State
Key Laboratory of Chemical Engineering and School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, China
| | - K. T. Yu
- State
Key Laboratory of Chemical Engineering and School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, China
| | - A. W. Zeng
- State
Key Laboratory of Chemical Engineering and School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, China
| | - M. A. Kalbassi
- Air Products PLC, Hersham
Place Technology Park, Molesey Road, Walton-on-Thames, Surrey KT12 4RZ, United Kingdom
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Jiang B, Liu P, Zhang L, Sun Y, Wang H, Liu Y, Fang Z. Hydrodynamics and Mass-Transfer Analysis of a Distillation Ripple Tray by Computational Fluid Dynamics Simulation. Ind Eng Chem Res 2013. [DOI: 10.1021/ie402822w] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | - Yuhua Liu
- Peiyang National Distillation Technology Corporation Limited Company, Tianjin, People’s Republic of China
| | - Zhao Fang
- Peiyang National Distillation Technology Corporation Limited Company, Tianjin, People’s Republic of China
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