GAS-SEPARATION MEMBRANE MODULE FOR OPERATION WITH CHEMICALLY ACTIVE GAS Russian patent published in 2019 - IPC B01D53/22 B01D63/02 B01D63/04 B01D63/10 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to a gas-separation membrane module. Gas-separation membrane module used in operation with acid gas contains: a hollow high-pressure vessel open at the first and second ends, made of carbon steel or low-alloyed steel, wherein the high-pressure vessel has a first end surface on said first end and a second end surface on said second end; first end cover made of carbon steel or low-alloy steel, sealing said first end of said high-pressure vessel on said first end surface, wherein said first end cover comprises a feed gas channel formed therein; second end cover made of carbon steel or low-alloy steel, sealing said second end of said high pressure vessel on said second end surface, wherein said second end cover has a residue channel formed therein, said high pressure vessel having a permeate channel formed therein; a plurality of gas-separation membranes located in a high pressure vessel in the form of a beam, wherein a plurality of membranes are enclosed in a solid polymer on the beam end in a compacted manner to form a first and a second tube array, wherein each of said membranes has a first side and a second side, wherein each of said membranes is designed and configured to separate feed gas containing acid gas fed to its first side by penetrating gases through membrane to its second side so as to provide low-pressure permeate gas on the second side and high pressure residual gas on the first side, wherein the permeate gas is enriched with one or more gases compared to the residual gas; pipe for feed gas channel, made of high-alloy steel, which is in fluid communication with channel for raw gas and one of first sides of membranes and second sides of membranes; residual channel pipe made of high-alloy steel, in fluid communication with residue channel and other of membranes first sides and second sides of membranes; and at least two compressible sealing elements comprising first and second compressible sealing elements, wherein: said first compressible sealing element is clamped between inner surface of high pressure container adjacent to first tube grid and outer surface of first tube plate, wherein said high pressure vessel inner surface is provided with corrosion-resistant plating; said second compressible sealing element is clamped between the inner surface of the high pressure container and adjacent to the second tube sheet and the outer surface of the second tube sheet, wherein the inner surface of the high pressure vessel is provided with a corrosion-resistant lining.

EFFECT: improved tightness of membrane modules.

11 cl, 7 dwg