Patent ID: 7550121

Claim:
A selectively permeable membrane reactor comprising: a reaction tube including an internal space having a supply port as an inlet port for a raw material gas and a discharge port as an outlet port for an unseparated gas, and a separation tube inserted into the internal space of the reaction tube, the separation tube including a selectively permeable membrane exhibiting selective permeability for a specific component on a surface facing the internal space of the reaction tube, and a process port as an outlet port for a separated gas which has passed through the selectively permeable membrane, the selectively permeable membrane reactor comprising a foamed body having a porous structure and exhibiting a catalytic effect for promoting a chemical reaction in the internal space of the reaction tube excluding the separation tube, wherein the foamed body exhibiting a catalytic effect is not in contact with the selectively permeable membrane and a gap between the foamed body exhibiting a catalytic effect and the selectively permeable membrane is between 500 μm and 2 mm.