Metallic Supported Pd-Ag Membranes for Simultaneous Ammonia Decomposition and H2 Separation in a Membrane Reactor: Experimental Proof of Concept

The use of ammonia as a hydrogen carrier requires efficient cracking technology. A promising solution is the membrane reactor (MR), which enables both decomposition and separation to take place within same device, providing advantages in terms efficiency compactness compared conventional systems. literature reports that ceramic-supported double-skinned Pd-Ag membranes show outstanding performance for well good stability layer during decomposition. However, their sealing may result leakage increase, while mechanical remains an unresolved issue. To circumvent these limitations, metallic supported Pd-based recommended, due higher ease integration reactor. In this work, we propose development robust hydrogen-selective reactors cracking. was prepared on low-cost porous Hastelloy X tubular filter, modified with α-Al2O3/γ-Al2O3 reach desired surface quality. then tested MR configuration, showing ability >99% NH3 conversion above 475 °C H2 feed recovery >60%. results achieved pave way towards possible substitute alternatives.