초록 ▼

A gas separation device for the removal of carbon oxides from a hydrogen-rich gas stream in the form of a composite comprising a hydrogen diffusion membrane and a methanation catalyst. The hydrogen diffusion membrane may be applied to the upstream surface of a porous or microporous support and the m

A gas separation device for the removal of carbon oxides from a hydrogen-rich gas stream in the form of a composite comprising a hydrogen diffusion membrane and a methanation catalyst. The hydrogen diffusion membrane may be applied to the upstream surface of a porous or microporous support and the methanation catalyst may be applied to the downstream surface of the porous or microporous support. The gas separation device is particularly useful for negating pinhole leakages of carbon monoxide through palladium alloy membrane by virtue of the polishing-up action of the methanation catalyst

대표청구항 ▼

1. A gas separation device comprising a hydrogen diffusion membrane which is associated with an upstream surface of a porous or microporous support and a finely divided methanation catalyst for the removal of carbon oxides from hydrogen gas streams, said methanation catalyst being associated with a

1. A gas separation device comprising a hydrogen diffusion membrane which is associated with an upstream surface of a porous or microporous support and a finely divided methanation catalyst for the removal of carbon oxides from hydrogen gas streams, said methanation catalyst being associated with a downstream surface of the support, wherein the hydrogen diffusion membrane, the support, and the methanation catalyst are in the form of a composite.