MEMBRANE TUBE AND REACTOR WITH MEMBRANE TUBE Russian patent published in 2016 - IPC B01D53/22 B01D65/00 C01B3/50 B01D63/06 B01J19/24 

FIELD: chemistry.

SUBSTANCE: inventions can be used in chemical and metallurgical industry. Membrane tube for diffusion separation of hydrogen from hydrogen-containing gas mixtures contains porous tube (S) from metal-ceramic alloy, and also containing palladium or membrane, made of palladium, (M), which covers external side of metal-ceramic tube (S). Metal-ceramic tube (S) has strongly connected with it fitting (F), made from gas-impermeable material, on one end. Shape of fitting (F) is formed by two hollow cylinders (Z₁ and Z₂), with external diameter of first hollow cylinder (Z₁) being equal to external diameter of metal-ceramic tube (S), and external diameter of second hollow cylinder (Z₂) being equal to internal diameter of metal-ceramic tube (S). Ceramic intermediate layer, which overlaps cylindrical part of fitting (F), is applied on external side of metal-ceramic tube, with palladium membrane, which extends beyond intermediate layer and is gas-impermeably connected with fitting, (F) being applied above intermediate layer.

EFFECT: inventions make it possible to prevent relative displacement and/or deviation, and thus prevent formation of cracks in membrane, and prevent diffusion between materials.

8 cl, 7 dwg