Application of computational fluid dynamics technique in pervaporation processes

Aryafard, Elham; Rahmatmand, Behnaz; Rahimpour, Mohammad Reza

doi:10.1016/b978-0-12-822294-2.00012-6

Cited by 2 publications

(2 citation statements)

References 51 publications

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“…Moreover, the hydrophilic features of the membrane surface were improved with the fullerene addition. The pervaporation mechanism can be explained through the solution-diffusion process [ 180 ]. Especially, the permeability is directly related to the solubility and diffusivity of the solute molecules.…”

Section: Implication Of Polymer/fullerene Nanocomposite Membranes In ...mentioning

confidence: 99%

State-of-the-Art of Polymer/Fullerene C60 Nanocomposite Membranes for Water Treatment: Conceptions, Structural Diversity and Topographies

et al. 2022

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To secure existing water resources is one of the imposing challenges to attain sustainability and ecofriendly world. Subsequently, several advanced technologies have been developed for water treatment. The most successful methodology considered so far is the development of water filtration membranes for desalination, ion permeation, and microbes handling. Various types of membranes have been industrialized including nanofiltration, microfiltration, reverse osmosis, and ultrafiltration membranes. Among polymeric nanocomposites, nanocarbon (fullerene, graphene, and carbon nanotubes)-reinforced nanomaterials have gained research attention owing to notable properties/applications. Here, fullerene has gained important stance amid carbonaceous nanofillers due to zero dimensionality, high surface areas, and exceptional physical properties such as optical, electrical, thermal, mechanical, and other characteristics. Accordingly, a very important application of polymer/fullerene C60 nanocomposites has been observed in the membrane sector. This review is basically focused on talented applications of polymer/fullerene nanocomposite membranes in water treatment. The polymer/fullerene nanostructures bring about numerous revolutions in the field of high-performance membranes because of better permeation, water flux, selectivity, and separation performance. The purpose of this pioneering review is to highlight and summarize current advances in the field of water purification/treatment using polymer and fullerene-based nanocomposite membranes. Particular emphasis is placed on the development of fullerene embedded into a variety of polymer membranes (Nafion, polysulfone, polyamide, polystyrene, etc.) and effects on the enhanced properties and performance of the resulting water treatment membranes. Polymer/fullerene nanocomposite membranes have been developed using solution casting, phase inversion, electrospinning, solid phase synthesis, and other facile methods. The structural diversity of polymer/fullerene nanocomposites facilitates membrane separation processes, especially for valuable or toxic metal ions, salts, and microorganisms. Current challenges and opportunities for future research have also been discussed. Future research on these innovative membrane materials may overwhelm design and performance-related challenging factors.

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Section: Implication Of Polymer/fullerene Nanocomposite Membranes In ...mentioning

confidence: 99%

State-of-the-Art of Polymer/Fullerene C60 Nanocomposite Membranes for Water Treatment: Conceptions, Structural Diversity and Topographies

et al. 2022

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“…On the one hand, pyridine and water would form an azeotrope at 93.6 °C, with 59 wt % pyridine in it; on the other hand, pyridine is present in effluents at a low concentration, which makes the recovery of pyridine a huge challenge. As a green membrane separation technique for separating azeotropic liquid mixtures, pervaporation could reduce 50–70% energy consumption in many cases as compared to the traditional separation processes, and as a result, it has received extensive attention from researchers. − …”

Section: Introductionmentioning

confidence: 99%

Pervaporation Removal of Pyridine from Saline Pyridine/Water Effluents Using PEBA-2533 Membranes: Experiment and Simulation

Wang

Zhang

et al. 2022

Ind. Eng. Chem. Res.

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Pervaporation technology using PEBA-2533 membranes was investigated to separate a low concentration of pyridine from the ternary mixture of pyridine, water, and NaCl. The experimental results showed that the studied membrane could achieve the enrichment of pyridine and the rejection of NaCl simultaneously. The permeation of pyridine was driven by the temperature and pyridine concentration in the feed solution. The experimental results for the effect of NaCl content on the fluxes correlated with the simulation values of water and pyridine activities. The pyridine activity values increased and water activity decreased on adding NaCl to the feed solution. What is more, it was confirmed that the accumulation of NaCl in the membrane increased with the NaCl concentration, which could influence the flux. According to the results of molecular dynamics (MD) simulations, the introduction of NaCl reduced the number of hydrogen bonds between pyridine and water, which was beneficial to the separation. The long-term operation tests for the pervaporation process showed that the poly(ether-block-amide) (PEBA) membrane had excellent stability, which proved the feasibility of pervaporation as an industrial process.

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Application of computational fluid dynamics technique in pervaporation processes

Cited by 2 publications

References 51 publications

State-of-the-Art of Polymer/Fullerene C60 Nanocomposite Membranes for Water Treatment: Conceptions, Structural Diversity and Topographies

State-of-the-Art of Polymer/Fullerene C60 Nanocomposite Membranes for Water Treatment: Conceptions, Structural Diversity and Topographies

Pervaporation Removal of Pyridine from Saline Pyridine/Water Effluents Using PEBA-2533 Membranes: Experiment and Simulation

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