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AssigneeBASF SE
InventorsOliver GRONWALD, Erik GUBBELS
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Provided is a hollow fiber membrane module that, even when being employed in a case body made of a resin, can prevent the case body from being deformed. A hollow fiber membrane module 10 comprises: a plurality of hollow fiber membranes 200; a case 100 that houses the plurality of hollow fiber membranes 200 and that has a case body 110 made of a resin and having openings at opposing ends; a pair of sealing-fixing parts 310, 320 for, at the opposing ends of the case 100, sealing gaps between the hollow fiber membranes in a state where the hollow insides of the hollow fiber membranes 200 are kept open, and fixing the plurality of hollow fiber membranes 200 to the case 100. The hollow fiber membrane module 10 is characterized in that in the case body 110, a reinforcement part 115 that links together a pair of opposite wall surfaces of inner wall surfaces housing the plurality of hollow fiber membranes 200 is integrally provided on the pair of wall surfaces.
-17. (canceled)
A fuel cell membrane humidifier comprising a hollow fiber membrane comprising a porous supporting structure, an inner membrane surface layer (SLin) and an outer membrane surface layer (SLout), the membrane comprising at least one polymer (P) selected from a sulfonated poly(arylene ether sulfone) and a poly(arylene ether sulfone), and a water-soluble polymer additive (A) comprising polyvinylpyrrolidone (PVP).
A method for selectively withholding nitrogen gas and selectively letting through water vapor from a gaseous mixture comprising water vapor and nitrogen, the method comprising employing a hollow fiber membrane comprising a porous supporting structure, an inner membrane surface layer (SLin) and an outer membrane surface layer (SLout), the membrane comprising at least one polymer (P) selected from a sulfonated poly(arylene ether sulfone) and a poly(arylene ether sulfone), and a water-soluble polymer additive (A) comprising polyvinylpyrrolidone (PVP).
A hollow fiber membrane comprising a porous supporting structure, an inner membrane surface layer (SLin) and an outer membrane surface layer (SLout), the membrane comprising at least one polymer (P) selected from a sulfonated poly(arylene ether sulfone) and a poly(arylene ether sulfone), and a water-soluble polymer additive (A) comprising at least 10% by weight, based on the total weight of the membrane, polyvinylpyrrolidone (PVP) having a solution viscosity characterized by a K-value of at least 80.
Dependencies are inferred from the claim text.