Membrane systems for the recovery of energy carriers from products of organic waste recycling

Teplyakov, V. V.; Хотимский, В. С.; Yakovlev, A. V.; Shalygin, M. G.; Gasanova, L. G.; Zenkevich, Viktor B.; Netrusov, A. I.

doi:10.1134/s2070050411010144

Cited by 7 publications

(2 citation statements)

References 13 publications

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“…Combined with the proven solvent and water stability of the hybrid membrane material, this approach was designed to result in stable hydrophobic hybrid silica membranes that would be suitable for a range of solvent separation processes. Such processes include upgrading of bioalcohol/water mixtures to fuel grade and harvesting of valuable alcohols from aqueous process streams [12,13].…”

Section: Introductionmentioning

confidence: 99%

From hydrophilic to hydrophobic HybSi® membranes: A change of affinity and applicability

Paradis

Shanahan

Kreiter

et al. 2013

Journal of Membrane Science

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Section: Introductionmentioning

confidence: 99%

From hydrophilic to hydrophobic HybSi® membranes: A change of affinity and applicability

Paradis

Shanahan

Kreiter

et al. 2013

Journal of Membrane Science

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“…Despite the variety of commercial companies which produce MEs for helium extraction from natural gas, data on polymer chemical structures being used, and membrane separation performance are scarcely presented in the literature [7,8]. Vigorous work was conducted in the field of synthesis of new polymer materials with promising helium separation characteristics [9,10], although few of them are known to be processed into asymmetric hollow fibers.…”

Section: Introductionmentioning

confidence: 99%

High-Pressure Aging of Asymmetric Torlon® Hollow Fibers for Helium Separation from Natural Gas

Dibrov

Ivanov

Semyashkin

et al. 2018

Fibers

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Membrane separation for helium extraction from natural gas gained increased interest recently. Several vendors offer membrane elements for helium extraction, although data on their performance and operating experience are unpublished. The aim of this work was to obtain and study the separation performance of asymmetric hollow-fiber membrane element from commercial polyamide-imide Torlon®, in conditions close to the industrial process of helium extraction from natural gas. A membrane element with an active area of 0.177 m2, a helium permeance of 100 l(STP)/(m2·h·bar), and a selectivity α(He/CH4) = 340 was produced. This corresponds to a selective layer thickness of 82.3 nm, which was confirmed by SEM and resistance model calculations. The obtained membrane element was employed to decrease the concentration of helium in its binary mixture with methane from 0.4% to 0.05%. A relationship of separation characteristics from transmembrane pressure is also presented. At 70 bar and a stage cut of 2.7%, the feed flow rate was 0.16 m3(STP)/h, which yielded a helium permeate concentration of 14.7%. At 80 bar, a decrease in permeance to 60 l(STP)/(m2·h·bar) and in selectivity to 240 was observed. It was shown that the main reason for aging was the increased support resistance, due to a partial compaction of pores with a radius of less than 15 nm.

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Integrated systems involving membrane vapor permeation and applications

Teplyakov

Shalygin

2015

Pervaporation, Vapour Permeation and Membrane Distillation

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Membrane systems for the recovery of energy carriers from products of organic waste recycling

Cited by 7 publications

References 13 publications

From hydrophilic to hydrophobic HybSi® membranes: A change of affinity and applicability

From hydrophilic to hydrophobic HybSi® membranes: A change of affinity and applicability

High-Pressure Aging of Asymmetric Torlon® Hollow Fibers for Helium Separation from Natural Gas

Integrated systems involving membrane vapor permeation and applications

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