CFD simulation of CO2 capture from gas mixtures in nanoporous membranes by solution of 2-amino-2-methyl-1-propanol and piperazine

Razavi, Seyed Mohammad Reza; Razavi, Seyed Mohammad Javad; Miri, Taghi; Shirazian, Saeed

doi:10.1016/j.ijggc.2013.02.011

Cited by 65 publications

(29 citation statements)

References 66 publications

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“…Comparison of the experimental and simulation time profile of concentration of Zn 2+ , [Zn 2+ ] c0 = 3.13 (mol/m 3 ). pH = 5 and extractant concentration = 100 mol/m 3 .…”

Section: Resultsmentioning

confidence: 99%

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Simulation of zinc extraction from aqueous solutions using polymeric hollow‐fibers

Ghadiri

Parvini

Darehnaei

2013

Polymer Engineering & Sci

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Modeling and simulation of zinc extraction from aqueous solutions with di(2‐ethylhexyl) phosphoric acid as extractant was conducted in this research. The simulated device for providing contact between two phases is a microporous hollow‐fiber membrane contactor. Computational fluid dynamics (CFD) method was applied for simulation of zinc extraction in this study. From the simulation results, concentration and pressure distributions were obtained for zinc to analyze the ability of membrane in extraction of zinc. The results of simulation revealed that extraction of Zn2+ from aqueous solutions is dependent on the flow rate of feed solution. It was observed that extraction efficiency of zinc was reduced with increasing feed flow rate. It is also indicated that the pressure drop along the shell side of the membrane extractor is not considerable. The latter is one of the advantages of membrane extractors which assist in reducing the separation costs for zinc recovery. POLYM. ENG. SCI., 54:2222–2227, 2014. © 2013 Society of Plastics Engineers

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“…Comparison of the experimental and simulation time profile of concentration of Zn 2+ , [Zn 2+ ] c0 = 3.13 (mol/m 3 ). pH = 5 and extractant concentration = 100 mol/m 3 .…”

Section: Resultsmentioning

confidence: 99%

“…Recently, computational fluid dynamics (CFD) has been largely used as a powerful tool to model membrane separation processes. It provides a favorable approach to optimize the operational parameters . Ghidossi et al overviewed novel CFD methods applied on simulation of membrane processes.…”

Section: Introductionmentioning

confidence: 99%

Simulation of zinc extraction from aqueous solutions using polymeric hollow‐fibers

Ghadiri

Parvini

Darehnaei

2013

Polymer Engineering & Sci

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“…The time interval was chosen as 30 seconds in the transient state. The solution of equations necessary for the simulation of adsorption process in membrane contactors by means of finite elements method using COMSOL software was also studied by Gilassi et al [17] (triangular mesh, PARDISO solver) and Razavi et al [11] (triangular mesh, UMFPACK solver).…”

Section: Solution Of Equationsmentioning

confidence: 99%

“…However, their concentrations in the solution dropped dramatically. Accordingly, a solution of amines like DEA, MDEA and AMP has been chosen due to better performance in removal of CO 2 from the standpoint of reactivity, absorption capacity (different CO 2 loading factor of absorbents), regeneration performance, higher selectivity and synergetic effects [8,10,11].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Carbon Dioxide Removal by Three Amine Mixture of Diethanolamine, Methyldiethanolamine, and 2-Amino- 2-Methyl-1-Propanol in a Hollow Fiber Membrane Contactor Using Computational Fluid Dynamics

Moghim

Mohammadi

2017

Period. Polytech. Chem. Eng.

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The present paper investigates the simulation of carbon dioxide removal from natural gas stream by a mixture of three amines of diethanolamine (DEA), methyldiethanolamine (MDEA), and 2-amino-2-methyl-1-propanol (AMP) in a hollow fiber membrane contactor made from polypropylene using finite volume method (FVM) IntroductionThe development of industrial activities has increasingly elevated the concentration of greenhouse gases in atmosphere during the past decades. The elevation of greenhouse gases gives rise to global warming and environmental issues. Carbon dioxide (CO 2 ) adds up to about 80% of the aforementioned gases [1]. Conventional gas adsorption equipment such as packed, bubble and spray columns and scrubbers suffer from drawbacks like the need for large space, high capital costs and operational problems including liquid channeling, flooding, solvent loss, foaming, etc. In contrast membrane contactor technology enjoys the benefits such as, they do not suffer from operational problems; they can be operated over a wide range of flow rates and can be custom designed and modified; also, membrane contactors in form of hollow fiber offer higher surface area 1600-6500 m 2 /m 3 as compared with conventional tray towers or packed columns with 30-330 m 2 /m 3 . Besides, less energy consumption, easy scale up, and independent control of gas and liquid rates are other traits than can characterize them as a capable technology [1,2]. CO 2 removal by membrane contactors has been studied since 1980's and the researchers have investigated factors such as solvent type, membrane material, and modulus type etc. to improve its performance. The membrane contactor technology benefits from both separation processes of membrane and adsorption. Qi and Cussler [3,4] first implemented the idea of hollow fiber membrane contactor (HFMC) application for the adsorption of CO 2 using non-wetted polypropylene membrane with porosity of several micrometres and aqueous sodium hydroxide as the adsorbent. Separation of CO 2 by membrane contactors provides more than 70% and 66% reductions in size and weight and up to 10 times adsorption capacity, respectively, compared to the conventional methods [5]. Gas phase flows in one side of HFMC (tube or shell side) and the liquid adsorbent phase flows in the other side while the two streams are not dispersed within each other. In case of hydrophobic membranes (e.g. polypropylene membranes) the gas-liquid interface forms inside the porous volume in the vicinity of the liquid phase (non-wetted operation) [2] and the gas diffuses in the membrane mostly because of concentration

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“…This is becoming a major problem globally because this phenomenon contributes to global warming, which in turn results in serious environmental problems. Among greenhouse gases, carbon dioxide is representing about 80% of greenhouse gases . Separation of carbon dioxide from gas mixtures is a subject of great interest for research community.…”

Section: Introductionmentioning

confidence: 99%

Separation of greenhouse gases from gas mixtures using nanoporous polymeric membranes

Mohammadi

Shirazian

Asadollahzadeh

et al. 2014

Polymer Engineering & Sci

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Removal of greenhouse gases from gas streams using porous membranes was carried out in this work. Theoretical studies were performed in terms of mathematical modeling and numerical simulation of CO2 capture in a flat‐sheet membrane contactor. Numerical simulation was performed using computational fluid dynamics (CFD) of mass and momentum transfer in the membrane module for laminar flow conditions. Physical absorption was considered in the simulations for absorption of CO2 in pure water. CO2 concentration distribution in the membrane module was determined through numerical solution of continuity equation coupled with the Navier‐Stokes equations. The modeling predictions indicated that the CO2 concentration difference is not appreciable in the membrane direction. Moreover, velocity distribution was determined in the liquid side of membrane contactor. CFD also represents a design and optimization tool for membrane gas separation processes. POLYM. ENG. SCI., 55:975–980, 2015. © 2014 Society of Plastics Engineers

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CFD simulation of CO2 capture from gas mixtures in nanoporous membranes by solution of 2-amino-2-methyl-1-propanol and piperazine

Cited by 65 publications

References 66 publications

Simulation of zinc extraction from aqueous solutions using polymeric hollow‐fibers

Simulation of zinc extraction from aqueous solutions using polymeric hollow‐fibers

Simulation of Carbon Dioxide Removal by Three Amine Mixture of Diethanolamine, Methyldiethanolamine, and 2-Amino- 2-Methyl-1-Propanol in a Hollow Fiber Membrane Contactor Using Computational Fluid Dynamics

Separation of greenhouse gases from gas mixtures using nanoporous polymeric membranes

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