• 专利标题:   Dehydration membrane used in energy recovery ventilator system for dehydrating gas comprises porous support, and composite coated on the porous support comprising crosslinked graphene oxide compound.
  • 专利号:   WO2019195380-A1, CA3097434-A1
  • 发明人:   ZHENG S, LIN W, WANG P, KITAHARA I, KHORASANI B, ERICSON J, HSIEH W, YAMASHIRO Y, KONDO T, BAGGE B
  • 专利权人:   NITTO DENKO CORP
  • 国际专利分类:   B01D053/22, B01D053/26, B01D067/00, B01D069/02, B01D069/12, B01D069/14, B01D071/02, B01D071/28, B01D071/40, B01D071/52, B01D071/56, B01D071/62, B01D071/80, B01D071/82
  • 专利详细信息:   WO2019195380-A1 10 Oct 2019 B01D-069/02 201981 Pages: 37 English
  • 申请详细信息:   WO2019195380-A1 WOUS025520 03 Apr 2019
  • 优先权号:   WOUS026283, US714504P, US734706P, CA3097434

▎ 摘  要

NOVELTY - A membrane comprises porous support; and composite coated on the porous support comprising crosslinked graphene oxide compound. The crosslinked graphene oxide compound is formed by reacting a mixture comprising graphene oxide compound, and polyether block amide (PEBA), poly(diallyldimethylammonium chloride)(PDADMA), poly(acrylamide-co-diallyldimethylammonium chloride)(PACD), and/or poly(sodium 4-styrenesulfonate)(PSS). USE - Dehydration membrane used in energy recovery ventilator system for dehydrating gas (claimed). ADVANTAGE - The membrane has water vapor transmission rate of not less than 1,000 g/m2/day as determined by ASTM E96 standard method; gas permeance that is less than 0.001 L/m2-s-Pa as determined by the Differential Pressure Method; and antimicrobial activity greater than or equal to 2 according to Japanese Industrial Standard Z 2801:2012. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method for dehydrating a gas which comprises applying a first gas to the dehydration; allowing the water vapor to pass through the dehydration membrane and to be removed; and generating a second gas that has lower water vapor content than the first gas; (2) a method of making the dehydration membrane which comprises curing aqueous mixture that is coated onto a porous support at 60-100 degrees C for 30 seconds to 3 hours to facilitate crosslinking within the aqueous mixture; and applying the aqueous mixture to the porous support, and repeating as necessary to achieve a layer of coating of 100-4000 nm thick; and (3) an energy recovery ventilator system which comprises the dehydration membrane. DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram illustrating a selectively permeable element.