Design and fabrication of hollow fiber membrane modules

Wan, Chunfeng; Yang, Tianshi; Lipscomb, G. Glenn; Stookey, Donald J.; Chung, Tai‐Shung

doi:10.1016/j.memsci.2017.05.047

Cited by 131 publications

(38 citation statements)

References 28 publications

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“…The results showed that obvious deposition of pollutants and photocatalyst occurred inside the hollow fiber membrane, whereas less fouling was observed for flat sheet membrane. With the development of membrane technology, outside-in hollow fiber membranes have been proved to exhibit better antifouling ability compared to the inside-out ones [117]. Xu et al [118] found that although both outside-in and inside-out hollow fiber UF modules could meet the desired standard of permeate quality, the outside-in module consistently performed better with an air enhanced backwash than the inside-out one using a chemical enhanced backwash.…”

Section: Membrane Configurationmentioning

confidence: 99%

Photocatalytic Membrane Reactors (PMRs) in Water Treatment: Configurations and Influencing Factors

et al. 2017

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Abstract:The lack of access to clean water remains a severe issue all over the world. Coupling photocatalysis with the membrane separation process, which is known as a photocatalytic membrane reactor (PMR), is promising for water treatment. PMR has developed rapidly during the last few years, and this paper presents an overview of the progress in the configuration and operational parameters of PMRs. Two main configurations of PMRs (PMRs with immobilized photocatalyst; PMRs with suspended photocatalyst) are comprehensively described and characterized. Various influencing factors on the performance of PMRs, including photocatalyst, light source, water quality, aeration and membrane, are detailed. Moreover, a discussion on the current problems and development prospects of PMRs for practical application are presented.

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Section: Membrane Configurationmentioning

confidence: 99%

Photocatalytic Membrane Reactors (PMRs) in Water Treatment: Configurations and Influencing Factors

et al. 2017

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“…Following specific preparation routes, hollow fibres or flat sheet configurations could be spun or casted out and subsequently manufactured into hollow fibres or spiral-wound membrane modules for practical applications [33]. Several reviews have discussed the membrane preparation methods in detail [37][38][39].…”

Section: Polymeric Membranes For Hydrogen Separationmentioning

confidence: 99%

A Review on the Production and Purification of Biomass-Derived Hydrogen Using Emerging Membrane Technologies

Yin

Yip

2017

Catalysts

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Abstract:Hydrogen energy systems are recognized as a promising solution for the energy shortage and environmental pollution crises. To meet the increasing demand for hydrogen, various possible systems have been investigated for the production of hydrogen by efficient and economical processes. Because of its advantages of being renewable and environmentally friendly, biomass processing has the potential to become the major hydrogen production route in the future. Membrane technology provides an efficient and cost-effective solution for hydrogen separation and greenhouse gas capture in biomass processing. In this review, the future prospects of using gas separation membranes for hydrogen production in biomass processing are extensively addressed from two perspectives: (1) the current development status of hydrogen separation membranes made of different materials and (2) the feasibility of using these membranes for practical applications in biomass-derived hydrogen production. Different types of hydrogen separation membranes, including polymeric membranes, dense metal membranes, microporous membranes (zeolite, metal-organic frameworks (MOFs), silica, etc.) are systematically discussed in terms of their fabrication methods, gas permeation performance, structure stability properties, etc. In addition, the application feasibility of these membranes in biomass processing is assessed from both practical and economic perspectives. The benefits and possibilities of using membrane reactors for hydrogen production in biomass processing are also discussed. Lastly, we summarize the limitations of the currently available hydrogen membranes as well as the gaps between research achievements and industrial application. We also propose expected research directions for the future development of hydrogen gas membrane technology.

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“…In a cross‐flow model, the permeated component flows directly to the outlet without mixing, while in cocurrent and countercurrent models, the downstream is mixed along the membrane. Membrane module performances such as flow rate and concentration in the permeate and retentate have been frequently simulated using these models in an effort to obtain optimal operating conditions 1‐9 . This type of module simulation requires given membrane permeation properties that include permeance, P i , and permeance ratio, α p , in order to calculate the module performance.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of experimentally obtained permeance based on module simulation: How should permeance be evaluated?

et al. 2020

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Permeance and permeance ratio in binary separation generally are obtained from experimental data using an analytical permeance equation consisting of the logarithmic average of the partial pressure difference (hereafter, approximate permeance equation). The aim of the present study was to clarify the applicable range for this equation. First, the separation performance of a membrane module was calculated with various given membrane properties (permeance, permeance ratio) and operation conditions (pressure, flow rate) via numerical computation. The obtained concentrations and flow rates in the retentate and permeate were used to calculate permeances via approximate permeance equation, and the validity was discussed by comparing permeances used for numerical computation with obtained ones. The present work clarifies the validity of the approximate permeance equation, and yields a general guideline stipulating that the partial pressure difference across the membrane at the inlet and outlet should maintain more than 60% to obtain the correct permeance.

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Design and fabrication of hollow fiber membrane modules

Cited by 131 publications

References 28 publications

Photocatalytic Membrane Reactors (PMRs) in Water Treatment: Configurations and Influencing Factors

Photocatalytic Membrane Reactors (PMRs) in Water Treatment: Configurations and Influencing Factors

A Review on the Production and Purification of Biomass-Derived Hydrogen Using Emerging Membrane Technologies

Evaluation of experimentally obtained permeance based on module simulation: How should permeance be evaluated?

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