Long-Term Stability of Thin-Film Pd-Based Supported Membranes
AbstractMembrane reactors have demonstrated a large potential for the production of hydrogen via reforming of different feedstocks in comparison with other reactor types. However, the long-term performance and stability of the applied membranes are extremely important for the possible industrial exploitation of these reactors. This study investigates the long-term stability of thin-film Pd-Ag membranes supported on porous Al2O3 supports. The stability of five similarly prepared membranes have been investigated for 2650 h, up to 600 °C and in fluidized bed conditions. Results show the importance and the contribution of the sealing of the membranes at temperatures up to 500 °C. At higher temperatures the membranes surface deformation results in pinhole formation and a consequent decrease in selectivity. Stable operation of the membranes in a fluidized bed is observed up to 450 °C, however, at higher temperatures the scouring action of the particles under fluidization causes significant deformation of the palladium surface resulting in a decreased selectivity. View Full-Text
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Nooijer, N.; Arratibel Plazaola, A.; Meléndez Rey, J.; Fernandez, E.; Pacheco Tanaka, D.A.; Sint Annaland, M.; Gallucci, F. Long-Term Stability of Thin-Film Pd-Based Supported Membranes. Processes 2019, 7, 106.
Nooijer N, Arratibel Plazaola A, Meléndez Rey J, Fernandez E, Pacheco Tanaka DA, Sint Annaland M, Gallucci F. Long-Term Stability of Thin-Film Pd-Based Supported Membranes. Processes. 2019; 7(2):106.Chicago/Turabian Style
Nooijer, Niek ; Arratibel Plazaola, Alba; Meléndez Rey, Jon; Fernandez, Ekain; Pacheco Tanaka, David A.; Sint Annaland, Martin ; Gallucci, Fausto. 2019. "Long-Term Stability of Thin-Film Pd-Based Supported Membranes." Processes 7, no. 2: 106.
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