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Catalytic membrane reactors for partial oxidation using perovskite hollow fiber membranes and for partial hydrogenation using a catalytic membrane contactor

: Caro, J.; Caspary, K.J.; Hamel, C.; Hoting, B.; Kölsch, P.; Langanke, B.; Nassauer, K.; Schiestel, T.; Schmidt, A.; Schomäcker, R.; Seidel-Morgenstern, A.; Tsotsas, E.; Voigt, I.; Wang, H.; Warsitz, R.; Werth, S.; Wolf, A.


Industrial and Engineering Chemistry Research 46 (2007), Nr.8, S.2286-2294
ISSN: 0888-5885
Fraunhofer IGB ()

Two consecutive model reactions of the type A -> B -> C are studied in two kinds of catalytic membrane reactors. The partial oxidation of methane to synthesis gas due to CH4 + (1)/O-2(2) -> CO + 2H(2) was investigated in a novel type of permselective membrane reactor using perovskite hollow fibers for the selective separation of oxygen from air. Partial hydrogenations were studied in a pore-through-flow membrane reactor as a special type of a catalytic membrane contactor. The catalytically functionalized pores of the membrane provide a medium with defined contact times for the cofeed of hydrogen and an unsaturated hydrocarbon, and the attempts of the scale-up of the successful laboratory experiments to the pilot scale are reported.