6_7

Fig.6-7 Schematic of a membrane reactor equipped with an H2 separation membrane for HI decomposition

In a membrane reactor, HI gas is catalytically decomposed into H2 and I2, and the H2 produced is separated by a membrane, thereby driving HI decomposition. The membrane consists of three layers: a base α-Al2O3 support tube, a middle layer (γ-Al2O3 or SiO2), and a top H2-selective SiO2 layer.

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