Hydrogen permeation studies of composite supported alumina-carbon molecular sieves membranes: Separation of diluted hydrogen from mixtures with methane: Separation of diluted hydrogen from mixtures with methane
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2021-05-28
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Abstract
One alternative for the storage and transport of hydrogen is blending a low amount of hydrogen (up to 15 or 20%) into existing natural gas grids. When demanded, hydrogen can be then separated, close to the end users using membranes. In this work, composite alumina carbon molecular sieves membranes (Al-CMSM) supported on tubular porous alumina have been prepared and characterized. Single gas permeation studies showed that the H2/CH4 separation properties at 30 °C are well above the Robeson limit of polymeric membranes. H2 permeation studies of the H2–CH4 mixture gases, containing 5–20% of H2 show that the H2 purity depends on the H2 content in the feed and the operating temperature. In the best scenario investigated in this work, for samples containing 10% of H2 with an inlet pressure of 7.5 bar and permeated pressure of 0.01 bar at 30 °C, the H2 purity obtained was 99.4%.
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Publisher Copyright: © 2020 The Author(s)
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Hydrogen separation , Carbon membrane , Hydrogen-methane mixture , Low concentration hydrogen , Hydrogen separation , Carbon membrane , Hydrogen-methane mixture , Low concentration hydrogen , Renewable Energy, Sustainability and the Environment , Fuel Technology , Condensed Matter Physics , Energy Engineering and Power Technology , SDG 7 - Affordable and Clean Energy , Project ID , info:eu-repo/grantAgreement/EC/H2020/700355/EU/Flexible Hybrid separation system for H2 recovery from NG Grids/HyGrid , info:eu-repo/grantAgreement/EC/H2020/700355/EU/Flexible Hybrid separation system for H2 recovery from NG Grids/HyGrid , Funding Info , This project received funding from the Fuel Cells and Hydrogen 2 Joint Undertaking under grant agreement N700355 (Hygrid). This Joint Undertaking receives support fromthe European Union’s Horizon 2020 Research and InnovationProgramme, Hydrogen Europe and N. ERGHY , This project received funding from the Fuel Cells and Hydrogen 2 Joint Undertaking under grant agreement N700355 (Hygrid). This Joint Undertaking receives support fromthe European Union’s Horizon 2020 Research and InnovationProgramme, Hydrogen Europe and N. ERGHY
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Llosa Tanco , M A , Medrano , J A , Cechetto , V , Gallucci , F & Pacheco Tanaka , D A 2021 , ' Hydrogen permeation studies of composite supported alumina-carbon molecular sieves membranes: Separation of diluted hydrogen from mixtures with methane : Separation of diluted hydrogen from mixtures with methane ' , International Journal of Hydrogen Energy , vol. 46 , no. 37 , pp. 19758-19767 . https://doi.org/10.1016/j.ijhydene.2020.05.088