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Henan Tongwei Medical Equipment Co., LtdCall us : +86 − −19139704654 // Email us : [email protected]
membrane pressure can become quite important in porous membrane contactors because it may induce Sow across the membrane (breakthrough) causing unwanted froth foam and dispersion between the two phases For this reason the option between op
Abstract This chapter deals with the potential of membrane contactors for the oxidation of As(III) with air In particular experiments carried out on a flat membrane module of 40 cm 2 of membrane area equipped with a polypropylene membrane of 0 2 μm pore size are presented and discussed
Polytetrafluoroethylene (PTFE) plasma sputtering of polypropylene (PP) membranes allows the formation of an ultrathin fluorinated hydrophobic surface that retains the microporous surface structure of the underlying membrane The absorption results presented in this paper show that the novel PP membrane material performs well for the separation of CO2 from other gases using an amine-based
fabrication of a multilayer film containing the microbial CA on a porous polypropylene membrane increased the hydration rate to 5 3 0 8 μmol cm −2 min 1 per layer of microbial CA The addition of mesoporous silica nanoparticles as a film layer prior to enzyme
[6] D Demontigny P Tontiwachwuthikul A Chakma Using polypropylene and polytetrafluoroethylene membranes in a membrane contactor for CO 2 absorption J Membr Sci 277(2006) 99-107 [7] S Khaisri D Demontigny P Tontiwachwuthikul R Jiraratananon Comparing membrane resistance and absorption performance of three different membranes in a gas absorption membrane contactor Sep
2015/5/28The fabrication of a multilayer film containing the microbial CA on a porous polypropylene membrane increased the hydration rate to 5 3 0 8 μmol cm–2 min–1 per layer of microbial CA The addition of mesoporous silica nanoparticles as a film layer prior to
1 CO 2 ABSORPTION IN FLAT MEMBRANE MICROSTRUCTURED CONTACTORS OF DIFFERENT WETTABILITY USING AQUEOUS SOLUTION OF NaOH Achilleas 1Constantinou1 2 Simon Barrass 1 and Asterios Gavriilidis * 1Department of Chemical Engineering University College London Torrington Place
Membrane contactors are generally divided into two groups: non-porous contactors (usually having an asymmetric structure with selective layer) and porous contactors Despite providing much better isolation of contacting phases non-porous contactors generally have much lower permeability for the target components resulting in proportional growth of capital and operational costs in industrial
To solve this problem some membrane techniques have been performed to remove organic waste from water such as membrane contactors membrane bioreactors and supported liquid membranes Polypropylene (PP) membrane is one of the promising candidates for these membrane processes due to its chemical stability low cost good mechanical resistance and being easily available
Porous membranes typically used for membrane contactors with MEA aqueous solution such as polytetrafluoroethylene (PTFE) and polypropylene (PP) membranes are not suitable to be used as a membrane interface with this new class of absorbents
Porous polypropylene membrane contactors for dehumidification of gases 799 The first demonstration of air drying by membrane contactors was reported by Isetti and Nannei using LiCl and CaCl 2 saturated solutions as absorbents [14] Further studies of heat and
[Click Here to download our whitepaper Using Membranes for Gas Exchange (PDF)] Liquid Contacting Liquid contacting is the use of membrane modules and membrane contactors for the transfer of gases to and from liquids PermSelect membranes contactors are comprised of dense silicone membranes without pores to clog and which cannot leak (or wet) as porous membranes can
2004/2/1Two types of polypropylene microporous hollow fiber membranes Celgard X40-200 and Celgard X50-215 were used to expose to diethanolamine (DEA) aqueous solutions with and without CO 2 loading in order to investigate the impact of amine absorbents on membrane surfaces during the process of CO 2 capture in a membrane contactor
M Khosravi et al / Journal of Chemical and Petroleum Engineering 52 (2) December 2018 / 157-167 159 tactor Also Paul et al [23] introduced a mathe-matical model for CO2 absorption in membrane contactors with flat sheet membrane using single and
Porous polymeric membranes have emerged as the core technology in the field of separation But some challenges remain for several methods used for membrane fabrication suggesting the need for a critical review of the literature We present here an overview on porous polymeric membrane preparation and characterization for two commonly used polymers: polysulfone and poly (vinylidene fluoride
Gas-liquid membrane contactors that were based on hollow fiber membranes are the example of highly effective hybrid separation processes in the field of membrane technology Membranes provide a fixed and well-determined interface for gas/liquid mass transfer without dispensing one phase into another while their structure (hollow fiber) offers very large surface area per apparatus volume
A study by Cookney et al (2016) found that the mass transfer resistance in porous membrane is 0 2% at high liquid velocity and 91% with non-porous membrane However in the study of Henares et al (2016) the micro-porous membrane has lower recovery efficiency than non-porous membrane at higher liquid flux (for 90 L/h/m 2 at a vacuum pressure of 50 kPa)
2019/11/15Membrane contactor equipped with porous polypropylene (PP) membranes in fiber mat has been commercialized by 3M under product name of 3M Liqui-Cel Technology This membrane contactor has been mainly designed for mass transfer in gas-liquid systems
Abstract: In the present work membrane contactors using both porous and nonporous polymeric hollow fiber membranes with ionic liquids as absorbent were developed for precombustion CO 2 capture at elevated temperature and pressures 1-Butyl-3-methylimidazolium
Porous membranes typically used for membrane contactors with MEA aqueous solution such as polytetrafluoroethylene (PTFE) and polypropylene (PP) membranes are not suitable to be used as a membrane interface with this new class of absorbents
This article summarizes the development of porous polymers from the perspectives of materials and methods for membrane production Polymers such as polyethylene polydimethylsiloxane polypropylene polyimide and polytetrafluoroethylene are reviewed due to their outstanding thermal stability chemical resistance mechanical strength and low cost
How to cite this article: Marek Gryta The Application of Polypropylene Membranes for Membrane Distillation Academ J Polym Sci 2018 1(3): 555565 DOI: 10 19080/AJOP 2018 01 555565 0051 Acdeic ournl of oler science installation were presented in Figure 1
2011/5/111 Adv Colloid Interface Sci 2011 May 11 164(1-2):144-55 doi: 10 1016/j cis 2010 10 008 Epub 2010 Oct 31 Adlayers of palladium particles and their aggregates on porous polypropylene hollow fiber membranes as hydrogenization contractors/reactors Volkov VV
2015/11/1Membrane gas solvent contactors show potential for carbon capture because it incorporates the advantage of both solvent and membrane technology Here three thin film composite membrane contactors are trialed for the absorption of CO 2 into monoethanolamine (MEA) solvent into monoethanolamine (MEA) solvent
Gas-liquid membrane contactors that were based on hollow fiber membranes are the example of highly effective hybrid separation processes in the field of membrane technology Membranes provide a fixed and well-determined interface for gas/liquid mass transfer without dispensing one phase into another while their structure (hollow fiber) offers very large surface area per apparatus volume
A study by Cookney et al (2016) found that the mass transfer resistance in porous membrane is 0 2% at high liquid velocity and 91% with non-porous membrane However in the study of Henares et al (2016) the micro-porous membrane has lower recovery efficiency than non-porous membrane at higher liquid flux (for 90 L/h/m 2 at a vacuum pressure of 50 kPa)
2018/10/1A polypropylene membrane contactor was used for the recovery of dissolved methane from an anaerobic reactor effluent Effect of operational parameters operation mode and fouling on long-term operation was studied using vacuum pressure or N 2 as sweep gas as sweep gas
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