The preparation of transition metal-containing mordenite catalytic tubular composite membranes

Composite zeolite catalytic tubular membranes containing rhodium(0) and ruthenium(0) in and on alumina tubes were prepared using the hydrothermal synthesis method termed ''multi in situ crystallization" (MISC). The membranes were tested in the partial oxidation of methane to investigate membrane activities. Transition metal-dispersed zeolitic catalytic tubular membranes exhibit a high catalytic surface area, large membrane surface area and high chemical and thermal stabilities. The applicability of these membranes to the partial oxidation reaction is demonstrated.