Membrane Technology

Wilcox, Jennifer

doi:10.1007/978-1-4614-2215-0_5

Cited by 3 publications

(3 citation statements)

References 39 publications

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“…In the fabrication process of inorganic membranes, materials such as carbon, metals and ceramics are embedded [ 74 ]. Ceramics and metals are included in these types of membranes to increase the mechanical strength with minimum resistance in mass transfer.…”

Section: Type Of Membranesmentioning

confidence: 99%

A Prospective Concept on the Fabrication of Blend PES/PEG/DMF/NMP Mixed Matrix Membranes with Functionalised Carbon Nanotubes for CO2/N2 Separation

Mahenthiran

Jawad

2021

Membranes

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With an ever-increasing global population, the combustion of fossil fuels has risen immensely to meet the demand for electricity, resulting in significant increase in carbon dioxide (CO2) emissions. In recent years, CO2 separation technology, such as membrane technology, has become highly desirable. Fabricated mixed matrix membranes (MMMs) have the most desirable gas separation performances, as these membranes have the ability to overcome the trade-off limitations. In this paper, blended MMMs are reviewed along with two polymers, namely polyether sulfone (PES) and polyethylene glycol (PEG). Both polymers can efficiently separate CO2 because of their chemical properties. In addition, blended N-methyl-2-pyrrolidone (NMP) and dimethylformamide (DMF) solvents were also reviewed to understand the impact of blended MMMs’ morphology on separation of CO2. However, the fabricated MMMs had challenges, such as filler agglomeration and void formation. To combat this, functionalised multi-walled carbon nanotube (MWCNTs-F) fillers were utilised to aid gas separation performance and polymer compatibility issues. Additionally, a summary of the different fabrication techniques was identified to further optimise the fabrication methodology. Thus, a blended MMM fabricated using PES, PEG, NMP, DMF and MWCNTs-F is believed to improve CO2/nitrogen separation.

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Section: Type Of Membranesmentioning

confidence: 99%

A Prospective Concept on the Fabrication of Blend PES/PEG/DMF/NMP Mixed Matrix Membranes with Functionalised Carbon Nanotubes for CO2/N2 Separation

Mahenthiran

Jawad

2021

Membranes

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“…Membrane processes are nonthermal processes that no heat is applied, therefore the energy requirement can be significantly reduced. Membrane technology also has a merit in the process continuity which allows the industries to operate without any interruption (Wilcox, ). However, the fouling, which generated on the membrane sheet during the operation process, is an important key disadvantage.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of coconut protein separation process by means of membrane ultrafiltration

Yiengveerachon

Yoshikawa

Matsumoto

2020

J Food Process Engineering

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Cross‐flow ultrafiltration has been reported as a promising technique to concentrate the coconut protein in the liquid by‐product called coconut skimmed effluent, which is produced from coconut oil wet process. However, the cake developed on the membrane surface always causes a measurable resistance, which extremely impedes the filtration efficiency. This study investigated the cross‐flow filtration performance under different operational conditions, which included membrane molecular weight cut‐off (10 and 30 kDa), transmembrane pressure (0.1, 0.2, and 0.3 MPa) and cross‐flow velocity (0.5, 1.0, and 1.5 l/min), and molecular electrostatic interaction by adjusting the feed suspension pH (2.0, 4.0, 6.3, 9.0). The results showed that there was no substantial difference in the filtration performance between 10 kDa and 30 kDa membrane because the number of molecules, in which the particle size was larger than 30 kDa, was high. Furthermore, the results confirmed that the permeate flux increased with the cross‐flow velocity but decreased with the transmembrane pressure due to the cake layer compressibility. For the suspension chemistry effects, although a thick cake layer was developed on the membrane when the feed suspension pH was very close to pI (pH 4.0), the permeate flux was surprisingly greater than the other pH conditions. Practical Application This research was carried out by focusing on the evaluation of the alternative method other than the traditional one, such as precipitation or centrifugation, for coconut protein concentration. The membrane ultrafiltration, which is widely used to improve the quality of many dairy products, has been applied to the coconut suspension and filtration performances including fouling behavior under various conditions have been investigated. The results obtained could provide extensive information for the operational optimization of the coconut liquor cross‐flow filtration process considering the hydrodynamic factors. Furthermore, since the experiment was conducted with a real polydispersed biopolymer mixture, its unique characteristics that depend on the change of pH would be able to extend the knowledge including the influence of the electrostatic interaction on the cake formation of such plant‐based protein–polysaccharide mixture.

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“…Investigation into combining membrane technology with traditional industrial processes is abundant and has identified its potential and versatility in tackling problems concerning mass and energy efficiency [2,3]. The key strength of membrane separation processes as a whole as compared with others is due to process continuity, environmental friendliness, and low footprint [4]. For several specific membrane technologies, for example, pervaporation (PV) and gas separation (GS), energy efficiency is an extra bonus [5].…”

Section: Introductionmentioning

confidence: 99%

Special Issue on “Novel Membrane Technologies for Traditional Industrial Processes”

Jiang

Wang

2019

Processes

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Membrane Technology

Cited by 3 publications

References 39 publications

A Prospective Concept on the Fabrication of Blend PES/PEG/DMF/NMP Mixed Matrix Membranes with Functionalised Carbon Nanotubes for CO2/N2 Separation

A Prospective Concept on the Fabrication of Blend PES/PEG/DMF/NMP Mixed Matrix Membranes with Functionalised Carbon Nanotubes for CO2/N2 Separation

Characteristics of coconut protein separation process by means of membrane ultrafiltration

Special Issue on “Novel Membrane Technologies for Traditional Industrial Processes”

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