Effect of aluminium acetyl acetonate on the hydrogen and nitrogen permeation of carbon molecular sieves membranes

With a growing interest in hydrogen as energy carrier, the efficient purification of from gaseous mixtures is very important. This paper addresses separation using Carbon Molecular Sieves Membranes (CMSM), which show an attractive combination high permeability, selectivity and stability. Supported CMSM containing various amounts aluminium have been prepared novolac acetyl acetonate (Al(acac)3) carbon alumina precursors. The thickness layers depend on content Al(acac)3 dipping solution, also has influence pore size distribution membranes. permeation properties membranes against Al membrane follows volcano shape, where 4 wt (%) best was stable during 720 h for at 150 °C 6 bar pressure difference. All well above Robeson Upper limit.