RT Journal Article
T1 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
A1 Llosa Tanco, Margot A.
A1 Medrano, Jose A.
A1 Cechetto, Valentina
A1 Gallucci, Fausto
A1 Pacheco Tanaka, David A.
AB 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%.
SN 0360-3199
YR 2021
FD 2021-05-28
LA eng
NO 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
NO Publisher Copyright: © 2020 The Author(s)
DS TECNALIA Publications
RD 27 jul 2024