Mass transfer modeling of ion transport through nanoporous media

Fadaei, Farzad; Shirazian, Saeed; Ashrafizadeh, Seyed Nezameddin

doi:10.1016/j.desal.2011.08.025

Cited by 38 publications

(29 citation statements)

References 18 publications

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“…Moreover solver of UMFPACK was used for solving symmetric problems. Some researchers have asserted the applicability and accuracy of UMFPACK for solving membrane equations (Razavi et al, , 2014Fasihi et al, 2012;Shirazian et al, 2012a,b,c,d,e;Rezakazemi et al, 2013aRezakazemi et al, ,b,c, 2011aRezakazemi et al, ,b, 2012Shirazian and Ashrafizadeh, 2013, 2010a,b, 2014, 2015aFadaei et al, 2011aFadaei et al, ,b, 2012Ghadiri et al, 2013b;Marjani et al, ,b,c, 2011aMarjani and Shirazian, 2010,b,c,d,e, 2012aHemmati et al, 2015;Hoshyargar et al, 2012;Khansary et al, 2015;Kohnehshahri et al, 2011;Moghadassi et al, 2011;Mohammadi et al, 2015;Moradi et al, 2013;Nosratinia et al, 2015;Pishnamazi et al, 2012;Ranjbar et al, 2013;Shirazian et al, 2011aShirazian et al, ,b, 2009Sohrabi et al, 2011a,b,c,d,e;Valavi et al, 2013). Triangular mesh elements used for the evaluation of gas behavior in the HFMC are illustrated in Fig.…”

Section: Numerical Proceduresmentioning

confidence: 97%

“…In recent years, many researchers have focused on investigation of different factors affecting HFMCs performance such as different absorbents, various polymers as a membrane, and flow rate of gas and liquid (Fasihi et al, 2012;Ghadiri et al, 2013aGhadiri et al, ,b,c, 2014aGhadiri et al, ,b, 2015Fadaei et al, 2011aFadaei et al, ,b, 2012Miramini et al, 2013;Ghadiri and Ashrafizadeh, 2014;Marjani et al, ,b, 2011aMarjani and Shirazian, 2010,b,c,d,e, 2012a.…”

Section: Introductionmentioning

confidence: 98%

“…Simulations of HFMCs have attracted many research attentions. Mathematical modeling and numerical simulation of membrane contactors considering chemical reaction have been studied in the literature (Fasihi et al, 2012;Shirazian et al, 2012a,b;Ashrafizadeh, 2013, 2011;Fadaei et al, 2011aFadaei et al, ,b, 2012Ghadiri and Shirazian, 2013;Ghadiri et al, 2013bGhadiri et al, ,c, 2014aMarjani et al, ,b, 2011aMarjani and Shirazian, 2010,b,c,d,e, 2012aFazaeli et al, 2015;Tahvildari et al, 2015). The main aim of the simulation works was to determine the concentration of CO 2 in the membrane contactor.…”

Section: Introductionmentioning

confidence: 98%

See 2 more Smart Citations

Numerical simulation of CO2 separation from gas mixtures in membrane modules: Effect of chemical absorbent

Razavi

Shirazian

Nazemian

2016

Arabian Journal of Chemistry

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In this study, a mathematical model is proposed for prediction of CO 2 absorption from N 2 /CO 2 mixture by potassium threonate in a hollow-fiber membrane contactor (HFMC). CFD technique using numerical method of finite element was applied to solve the governing equations of model. Effect of different factors on CO 2 absorption was analyzed and for investigation of absorbent type effect, functioning of potassium threonate was compared with diethanolamine (DEA). Axial and radial diffusion can be described with the two dimensional model established in this work. The obtained simulation results were compared with the reported experimental data to ensure accuracy of the model predictions. Comparison of model results with experimental data revealed that the developed model can well predict CO 2 capture by potassium threonate in HFMCs. Increment of absorbent flow rate and concentration eventuate in enhancement of CO 2 absorption. On the other hand, capture of CO 2 will be reduced with increment of gas flow rate. According to the model results, potassium threonate can be considered as a more efficient absorbent as compared with DEA. ª 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Section: Numerical Proceduresmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Numerical simulation of CO2 separation from gas mixtures in membrane modules: Effect of chemical absorbent

Razavi

Shirazian

Nazemian

2016

Arabian Journal of Chemistry

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“…An IBM-PC-Pentium 4 (CPU speed is 2800 MHz) was used to solve the sets of equations. Parameters used for numerical simulations are taken from literature [10][11][12][13][14][15].…”

Section: Numerical Solution Of the Equationsmentioning

confidence: 99%

“…Currently, conventional separation processes including selective ion exchange, air stripping, break-point chlorination, denitrification, and biological nitrification are applied to remove ammonia from water and wastewater 1,[9][10][11] . Recently, porous membranes have attracted large attentions as contactors for ammonia separation.…”

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confidence: 99%

Application of CFD Techniques for Prediction of NH3 Transport Through Porous Membranes

Marjani¹,

Shirazian²

2012

Orientjchem.

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Ion transfer modeling based on Nernst–Planck theory for saline water desalination during electrodialysis process

Zhu

Yang²,

Gao

et al. 2020

Asia-Pacific J Chem Eng

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Electrodialysis, an efficient and environmental friendly separation technology, plays a significant role in water treatment. In order to reveal ion transfer mechanism and predict electrodialysis behavior, a mathematical model for steady transport of a binary electrolyte during the desalination process was developed. The Nernst–Planck, electroneutrality equations, and other hydrodynamic equations were coupled and solved with appropriate boundary conditions using the finite element method. This model is capable to predict the local ion concentration, electric potential, and ion flux in a rectangular electrodialysis unit. The effects of voltage drop (0.4–1.0 V), inlet velocity (0.03–0.06 m/s), and initial feed concentration (500–700 mol/m3) are investigated, which could provide valuable guidance for electrodialysis operation in the practical project. Moreover, this model is validated by comparing its simulation result with experimental data of electrodialysis, and it could predict the desalination of saline water accurately. Ion transfer modeling provides an effective way to study the transfer mechanism, estimate the effects of various parameters conveniently, and realize the target‐oriented operation optimization.

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Mass transfer modeling of ion transport through nanoporous media

Cited by 38 publications

References 18 publications

Numerical simulation of CO2 separation from gas mixtures in membrane modules: Effect of chemical absorbent

Numerical simulation of CO2 separation from gas mixtures in membrane modules: Effect of chemical absorbent

Application of CFD Techniques for Prediction of NH3 Transport Through Porous Membranes

Ion transfer modeling based on Nernst–Planck theory for saline water desalination during electrodialysis process

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