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

Autor: A. Rahimalimamaghani, D.A. Pacheco Tanaka, M.A. Llosa Tanco, F. Neira D'Angelo, F. Gallucci
Přispěvatelé: Inorganic Membranes and Membrane Reactors, EIRES Chem. for Sustainable Energy Systems, Sustainable Process Engineering, Chemical Reactor Engineering
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: International Journal of Hydrogen Energy, 47(32), 14570-14579. Elsevier
TECNALIA Publications
Fundación Tecnalia Research & Innovation
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2022.02.198
Popis: With a growing interest in hydrogen as energy carrier, the efficient purification of hydrogen from gaseous mixtures is very important. This paper addresses the separation of hydrogen using Carbon Molecular Sieves Membranes (CMSM), which show an attractive combination of high permeability, selectivity and stability. Supported CMSM containing various amounts of aluminium have been prepared from novolac and aluminium acetyl acetonate (Al(acac)3) as carbon and alumina precursors. The thickness of the CMSM layers depend on the content of Al(acac)3 in the dipping solution, which also has influence in the pore size and pore size distribution of the membranes. The permeation properties of the membranes against the Al content in the membrane follows a volcano shape, where the membrane containing 4 wt (%) of Al(acac)3 has the best properties and was stable during 720 h for hydrogen at 150 °C and 6 bar pressure difference. All the CMSM have permeation properties well above the Robeson Upper limit. The research has been carried out within the TTW Perspectief Programme “Microsync” project number P16-10.
Databáze: OpenAIRE
Externí odkaz: