3D printed porous contactors for enhanced oil droplet coalescence

Al-Shimmery, Abouther; Mazinani, Saeed; Flynn, Joseph M.; Chew, Y.M. John; Mattia, Davide

doi:10.1016/j.memsci.2019.117274

Cited by 14 publications

(6 citation statements)

References 41 publications

(55 reference statements)

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“…[49][50][51][52] The ability to spatially control micrometer scale morphologies opens the possibility to engineer flow patterns within the sorbent. [53] For instance, modeling flow profiles within a woodpile structure (Figure 3, Additive Manufacturing, [Low Magnification]) provides structure-function insight on how 3D structures can modulate the contributions of diffusive and convective mass transport mechanisms. [41] Additionally, additive manufacturing techniques enable the creation The surface of uniformly sized beads, used for high-performance liquid chromatography, is functionalized through heterogenous chemistries to tailor sorbent-analyte interactions.…”

Section: Polymer Processing Tailors Sorbent Morphologymentioning

confidence: 99%

Design Considerations for Next‐Generation Polymer Sorbents: From Polymer Chemistry to Device Configurations

Ouimet

Phillip

et al. 2022

Macro Chemistry & Physics

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Adsorption‐based separations have the potential to enhance the sustainability of established industrial processes and facilitate the adoption of new practices. They also provide ways to meet emerging needs in the isolation of resources from non‐traditional supplies and the remediation of hazardous environmental contaminants. In this regard, there are significant opportunities to advance both fundamental polymer science and engineering applications through next‐generation adsorbent systems. Here, after briefly reviewing the history, potential application space, and underlying physics of polymer sorbents, design considerations that connect macromolecular design with systems‐level functionality, are discussed. First, polymer processing conditions are discussed in terms of the final nano‐ and microscale structures produced. Subsequently, the macromolecular chemistry of the materials is analyzed with respect to the ability of the separations systems to have analyte‐specific binding. Finally, a similar analysis is performed regarding the desorption mechanism used to release the target solutes. In this way, the manuscript attempts to connect macromolecular architecture with polymer physics and materials processing to provide guidance on how these important interrelationships impact the ultimate performance of sorbent systems.

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Section: Polymer Processing Tailors Sorbent Morphologymentioning

confidence: 99%

Design Considerations for Next‐Generation Polymer Sorbents: From Polymer Chemistry to Device Configurations

Ouimet

Phillip

et al. 2022

Macro Chemistry & Physics

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“…Recently, the TPMS methods have been used in the channel design in the catalysts, [50] mixers, [102] adsorbents, [103] and microreactors. [100,104] Generally, the TPMS is described strictly by the implicit functions, [99] and thus the resulting structures can be changed by varying the parameters in the functions. [105] Some typical TPMS, such as Gyroid, [99,105] Schwartz diamond, [99,105] Schwarz P, [93] and Schoen I-WP [92,93] are described by the following implicit functions in the Cartesian coordinate system, Gyroid (Figure 3e)…”

Section: Design Based On Mathematicsmentioning

confidence: 99%

Hierarchically Structured Components: Design, Additive Manufacture, and Their Energy Applications

Wang

Xuan

Zhang

et al. 2021

Adv Materials Technologies

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term solutions are urgently needed before adequate supply of the renewable energy. [1,2] Improvement of efficiency in the energy production and consumption processes is a key factor to address these problems. Meanwhile, the large reaction rate is a key factor to meet the industrial energy requirements. [1][2][3][4][5] Mass transport intensification is an effective method to improve the efficiency and reaction rate in the adsorptions, chemical reactions, and electrochemical reactions, which plays crucial roles in the gas (H 2 , CH 4 , CO 2 , etc.) storage, [6,7] energy conversion, [8] and energy storage. [3,9,10] Recently, novel batteries [2,3,[11][12][13] and microreactors [8,[14][15][16][17][18] for the gas (H 2 , CH 4 , CO 2 , etc.) storage [6,7] and energy conversion [8] have been developed to meet the requirements of high efficiency and rates. In these devices, the mass transport intensification is particularly important to acquire the high selectivity, large reaction rate, great conversion efficiency. [2,8,19,20] The mass transfer steps in the monolithic adsorbents, structured catalysts, and shaped electrodes are similar. Therefore, it is possible to use an identical term to describe the monolithic adsorbents, structured catalysts, and shaped electrodes for convenience to discuss the mass transfer processes. Herein, we use the hierarchically structured components (HSCs) to describe the structures which are comprised of designed channels and matrix between channels, where the matrix is made from functional materials (ceramics, carbon, metals, etc.) with pores in the size from nanometer to sub-millimeters, as illustrated in Figure 1a. In the flow batteries and fuel cells, the assembly of bipolar plate and electrode is regarded as HSC.Generally, the reactants undergo four steps (distribution, adsorption, acceleration, and reaction) in the HSC, as shown in Figure 1b-e. The distribution starts as soon as the reactant flows into the inlet. In this step, the reactant is distributed across the HSC through the designed channels, as shown in Figure 1b. [21,22] Subsequently the fluid is adsorbed by the macropores (>50 nm) which act as buffers for the reactants in the matrix, shown in Figure 1c. [23] As shown in Figure 1d,e, the reactants are accelerated by the mesopores (2-50 nm) and transferred to the micropores (<2 nm) which provide high surface area for the active sites. [23][24][25] After reaction at the active sites, the products are transferred by the mesopores and macropores to the outlet, successively. [26,27] Therefore, the Pursuing high energy efficiency and reaction rate is an effective direction in mitigating the energy and climate crisis. Mass transfer intensification is a powerful approach to enhance the energy efficiency and reaction rate in the energy conversion and storage processes. The nature-inspired channels are outstanding tools to uniformly distribute the reactants, fast remove products, and reduce the diffusion distance for mass transfer intensification in monolithic adsorbents, structured catal...

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“…As membrane spacers, TPMS geometries improved heat and mass transfer and reduced fouling in ultrafiltration, distillation, and reverse osmosis applications 23 , 24 . As the macroscopic building blocks of membranes, TPMS geometries increased separation efficiency in oil-in-water demulsification 25 . Initial investigations into the heat and mass transfer properties of TPMS-based microfluidic modules showed significant improvement over traditional membrane geometries 26 – 28 .…”

Section: Introductionmentioning

confidence: 99%

TPMS-based membrane lung with locally-modified permeabilities for optimal flow distribution

Hesselmann

Halwes

Bongartz

et al. 2022

Sci Rep

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Membrane lungs consist of thousands of hollow fiber membranes packed together as a bundle. The devices often suffer from complications because of non-uniform flow through the membrane bundle, including regions of both excessively high flow and stagnant flow. Here, we present a proof-of-concept design for a membrane lung containing a membrane module based on triply periodic minimal surfaces (TPMS). By warping the original TPMS geometries, the local permeability within any region of the module could be raised or lowered, allowing for the tailoring of the blood flow distribution through the device. By creating an iterative optimization scheme for determining the distribution of streamwise permeability inside a computational porous domain, the desired form of a lattice of TPMS elements was determined via simulation. This desired form was translated into a computer-aided design (CAD) model for a prototype device. The device was then produced via additive manufacturing in order to test the novel design against an industry-standard predicate device. Flow distribution was verifiably homogenized and residence time reduced, promising a more efficient performance and increased resistance to thrombosis. This work shows the promising extent to which TPMS can serve as a new building block for exchange processes in medical devices.

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3D printed porous contactors for enhanced oil droplet coalescence

Cited by 14 publications

References 41 publications

Design Considerations for Next‐Generation Polymer Sorbents: From Polymer Chemistry to Device Configurations

Design Considerations for Next‐Generation Polymer Sorbents: From Polymer Chemistry to Device Configurations

Hierarchically Structured Components: Design, Additive Manufacture, and Their Energy Applications

TPMS-based membrane lung with locally-modified permeabilities for optimal flow distribution

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